View Filing Data

Print Document View Excel Document

Document and Entity Information Document	12 Months Ended
Document and Entity Information Document	Dec. 29, 2012 USD ($) shares
Entity Information [Line Items]
Entity Registrant Name	CHARLES RIVER LABORATORIES INTERNATIONAL INC
Entity Central Index Key	0001100682
Current Fiscal Year End Date	--12-29
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 29, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q4
Amendment Flag	false
Entity Common Stock, Shares Outstanding \| shares	48,220,037
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float \| $	$ 1,806,644,302

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Net sales related to products	$ 467,944	$ 483,309	$ 458,623
Net sales related to services	661,586	659,338	674,793
Net sales	1,129,530	1,142,647	1,133,416
Costs and expenses
Cost of products sold	255,409	267,966	252,962
Cost of services provided	478,492	472,439	495,694
Selling, general and administrative	208,248	198,648	232,489
Goodwill impairment	0	0	305,000
Asset impairments	3,548	7,492	91,378
Termination fee	0	0	30,000
Amortization of other intangibles	18,068	21,796	24,405
Operating income (loss)	165,765	174,306	(298,512)
Other income (expense)
Interest income	589	1,353	1,186
Interest expense	(33,342)	(42,586)	(35,279)
Other, net	(3,266)	(411)	(1,477)
Income (loss) from continuing operations, before income taxes	129,746	132,662	(334,082)
Provision for income taxes	27,628	17,140	23
Income (loss) from continuing operations, net of income taxes	102,118	115,522	(334,105)
Income (loss) from discontinued operations, net of taxes	(4,252)	(5,545)	(8,012)
Net income (loss)	97,866	109,977	(342,117)
Less: Net loss (income) attributable to noncontrolling interests	(571)	(411)	5,448
Net income (loss) attributable to common shareowners	$ 97,295	$ 109,566	$ (336,669)
Basic:
Continuing operations attributable to common shareowners (in dollars per share)	$ 2.12	$ 2.26	$ (5.25)
Discontinued operations (in dollars per share)	(0.09)	(0.11)	(0.13)
Net income (loss) attributable to common shareowners (in dollars per share)	2.03	2.16	(5.38)
Diluted:
Continuing operations attributable to common shareowners (in dollars per share)	2.10	2.24	(5.25)
Discontinued operations (in dollars per share)	(0.09)	(0.11)	(0.13)
Net income (loss) attributable to common shareowners (in dollars per share)	$ 2.01	$ 2.14	$ (5.38)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Net income (loss)	$ 97,866	$ 109,977	$ (342,117)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, before Tax	636	0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	4,682	(12,264)	(10,304)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	209	(325)	853
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	712	0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(8,634)	(23,728)	(11,579)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	2,772	1,068	804
Other Comprehensive Income (Loss), before Tax	98,243	74,728	(362,343)
Other Comprehensive Income (Loss), Tax	(1,677)	(6,272)	(8,642)
Total comprehensive income	99,920	81,000	(353,701)
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	615	476	(5,630)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 99,305	$ 80,524	$ (348,071)

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 109,685	$ 68,905
Trade receivables, net	203,001	184,810
Inventories	88,470	92,969
Other current assets	83,601	79,052
Current assets of discontinued businesses	495	107
Total current assets	485,252	425,843
Property, plant and equipment, net	717,020	738,030
Goodwill	208,609	197,561
Other intangible assets, net	84,922	93,437
Deferred tax asset	38,554	44,804
Other assets, noncurrent	48,659	57,659
Long-term assets of discontinued businesses	3,328	986
Total assets	1,586,344	1,558,320
Current liabilities
Current portion of long-term debt and capital leases	139,384	14,758
Accounts payable	31,218	34,332
Accrued compensation	46,951	41,602
Deferred revenue	56,422	56,530
Accrued liabilities	45,208	54,377
Other current liabilities	21,262	14,033
Current liabilities of discontinued businesses	1,802	1,165
Total current liabilities	342,247	216,797
Long-term debt and capital leases	527,136	703,187
Other long-term liabilities	104,966	108,451
Long-term liabilities of discontinued businesses	8,795	2,522
Total liabilities	983,144	1,030,957
Commitments and contingencies
Shareowners' equity
Preferred stock, $0.01 par value; 20,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value; 120,000,000 shares authorized; _______ issued and _______ shares outstanding at December 29, 2012 and 78,473,888 issued and 48,875,715 shares outstanding at December 31, 2011	796	785
Capital in excess of par value	2,097,316	2,056,921
Accumulated deficit	(368,301)	(465,596)
Treasury stock, at cost, _____ shares and 29,598,173 shares at December 29, 2012 and December 31, 2011, respectively	(1,135,609)	(1,071,120)
Accumulated other comprehensive income	6,603	4,593
Total shareowners' equity	600,805	525,583
Noncontrolling interests	2,395	1,780
Total equity	603,200	527,363
Total liabilities and equity	$ 1,586,344	$ 1,558,320

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Cash flows relating to operating activities
Net income (loss)	$ 97,866	$ 109,977	$ (342,117)
Less: Income (loss) from discontinued operations	(4,252)	(5,545)	(8,012)
Income (loss) from continuing operations	102,118	115,522	(334,105)
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	81,275	85,230	93,649
Amortization of debt issuance costs and discounts	17,622	20,010	19,777
Goodwill impairment	0	0	305,000
Impairment charges	3,548	7,492	91,378
Non-cash compensation	21,855	21,706	25,526
Deferred income taxes	1,311	(8,668)	(42,342)
Other, net	6,316	(7,436)	1,797
Changes in assets and liabilities:
Trade receivables	(16,266)	7,669	(5,640)
Inventories	785	3,766	1,989
Other assets	(296)	505	(2,131)
Accounts payable	(3,257)	2,208	71
Accrued compensation	4,612	(7,412)	4,482
Deferred revenue	(915)	(9,515)	(4,209)
Accrued liabilities	(7,050)	(1,355)	5,501
Taxes payable and prepaid taxes	2,331	(13,782)	13,087
Other liabilities	(5,983)	(9,098)	(5,594)
Net cash provided by operating activities	208,006	206,842	168,236
Cash flows relating to investing activities
Acquisition of businesses and assets, net of cash acquired	(16,861)	0	0
Capital expenditures	(47,534)	(49,143)	(42,860)
Purchases of investments	(18,537)	(24,556)	(27,600)
Proceeds from sale of investments	25,156	31,607	72,464
Other, net	2,786	5,447	950
Net cash provided by (used in) investing activities	(54,990)	(36,645)	2,954
Cash flows relating to financing activities
Proceeds from long-term debt and revolving credit agreement	74,116	250,708	579,372
Proceeds from exercises of stock options and warrants	18,359	20,625	4,492
Payments on long-term debt, capital lease obligation and revolving credit agreement	(140,347)	(252,965)	(381,535)
Purchase of treasury stock and Accelerated Stock Repurchase Program	(64,189)	(283,795)	(356,527)
Other, net	940	(6,359)	(13,697)
Net cash used in financing activities	(111,121)	(271,786)	(167,895)
Discontinued operations
Net cash provided by (used in) operating activities	(106)	(1,559)	777
Net cash provided by investing activities	0	0	2,807
Net cash provided by (used in) discontinued operations	(106)	(1,559)	3,584
Effect of exchange rate changes on cash and cash equivalents	(1,009)	(7,107)	(10,293)
Net change in cash and cash equivalents	40,780	(110,255)	(3,414)
Cash and cash equivalents, beginning of period	68,905	179,160	182,574
Cash and cash equivalents, end of period	109,685	68,905	179,160
Supplemental cash flow information
Cash paid for interest	15,145	22,321	16,140
Cash paid for taxes	17,032	29,124	22,068
Capitalized interest	467	298	56
Period Costs, Capitalized During Period	$ 69	$ 0	$ 0

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Accumulated Deficit (Earnings)	Accumulated Other Comprehensive Income	Common Stock	Capital in Excess of Par	Treasury Stock	Non-controlling Interest
Balance at Dec. 26, 2009	$ 1,373,824	$ (238,493)	$ 45,037	$ 771	$ 2,038,455	$ (470,527)	$ (1,419)
Components of comprehensive income, net of tax:
Net income (loss)	(342,117)
Net Income (Loss) Attributable to Parent		(336,669)
Net Income (Loss) Attributable to Noncontrolling Interest	(5,448)						(5,448)
Other Comprehensive Income (Loss), Net of Tax	(11,584)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent			(11,402)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest							(182)
Total comprehensive income	(353,701)
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(5,630)						(5,630)
Dividends paid noncontrolling interest	270						270
Purchase of noncontrolling interest in PCS-China	(4,000)				(12,623)		8,623
Tax detriment associated with stock issued under employee compensation plans	(926)				(926)
Issuance of stock under employee compensation plans	4,590			4	4,586
Acquisition of treasury shares	298,172					(298,172)
Accelerated Stock Repurchase equity instrument	(58,355)				(58,355)
Stock-based compensation	25,737				25,737
Balance at Dec. 25, 2010	688,727	(575,162)	33,635	775	1,996,874	(768,699)	1,304
Components of comprehensive income, net of tax:
Net income (loss)	109,977
Net Income (Loss) Attributable to Parent		109,566
Net Income (Loss) Attributable to Noncontrolling Interest	411						411
Other Comprehensive Income (Loss), Net of Tax	(28,977)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent			(29,042)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest							65
Total comprehensive income	81,000
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	476						476
Tax detriment associated with stock issued under employee compensation plans	(802)				(802)
Issuance of stock under employee compensation plans	20,527			10	20,517
Acquisition of treasury shares	269,655				32,766	(302,421)
Accelerated Stock Repurchase equity instrument	(14,140)				(14,140)
Stock-based compensation	21,706				21,706
Balance at Dec. 31, 2011	527,363	(465,596)	4,593	785	2,056,921	(1,071,120)	1,780
Components of comprehensive income, net of tax:
Net income (loss)	97,866
Net Income (Loss) Attributable to Parent		97,295
Net Income (Loss) Attributable to Noncontrolling Interest	571						571
Other Comprehensive Income (Loss), Net of Tax	2,054
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent			2,010
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest							44
Total comprehensive income	99,920
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	615						615
Tax detriment associated with stock issued under employee compensation plans	125				125
Issuance of stock under employee compensation plans	18,426			11	18,415
Acquisition of treasury shares	64,489					(64,489)
Stock-based compensation	21,855				21,855
Balance at Dec. 29, 2012	$ 603,200	$ (368,301)	$ 6,603	$ 796	$ 2,097,316	$ (1,135,609)	$ 2,395

Description of Business and Summary of Significant Accounting Policies

12 Months Ended

Dec. 29, 2012

Description of Business and Summary of Significant Accounting Policies [Abstract]

Description of Business and Summary of Significant Accounting Policies

Description of Business

Charles River Laboratories International, Inc. together with its subsidiaries is a leading global provider of solutions that accelerate the drug discovery and development process including research models and associated services, and outsourced preclinical services. Our fiscal year is the twelve-month period ending the last Saturday in December.

Principles of Consolidation

The consolidated financial statements include all majority-owned subsidiaries. Intercompany accounts, transactions and profits are eliminated.

Reclassifications

Certain reclassifications have been made to prior year statements to conform to the current year presentation. These reclassifications have no impact on period reported net income or cash flow.

Use of Estimates

The financial statements have been prepared in conformity with generally accepted accounting principles and, as such, include amounts based on informed estimates and judgments of management with consideration given to materiality. Estimates and assumptions are reviewed in an ongoing basis and the effect of revisions is reflected in the consolidated statements in the period in which they are determined to be necessary. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash equivalents include time deposits and highly liquid investments with original maturities at the purchase date of three months or less.

Trade Receivables

We record trade receivables net of an allowance for doubtful accounts. We establish an allowance for doubtful accounts which we believe is adequate to cover anticipated losses on the collection of all outstanding trade receivable balances. The adequacy of the doubtful account allowance is based on historical information, a review of major client accounts receivable balances and management's assessment of current economic conditions. We reassess the allowance for doubtful accounts each quarter. If the financial condition of our clients were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required. Provisions to the allowance for doubtful accounts amount to $947 in 2012, $426 in 2011 and $1,536 in 2010. Write offs to the allowance for doubtful accounts amounted to $697 in 2012, $1,228 in 2011 and $1,541 in 2010.

The composition of net trade receivables is as follows:



	December 29, 2012			December 31, 2011
Client receivables	$	174,774		$	159,381
Unbilled revenue	32,494			29,446
Total	207,268			188,827
Less allowance for doubtful accounts	(4,267		)	(4,017		)
Net trade receivables	$	203,001		$	184,810

Concentrations of Credit Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and trade receivables. We place our cash and cash equivalents in various financial institutions with high credit rating and limit the amount of credit exposure to any one financial institution. Our trade receivables are from clients in the pharmaceutical and biotechnology industries. No single client accounted for more than 5% of our net sales or trade receivables for any period presented.

Marketable Securities

Investments in marketable securities are reported at fair value and consist of time deposits and auction rate securities. Realized gains and losses on securities are included in earnings and are determined using the specific identification method. Unrealized holding gains and losses on securities classified as available for sale, are excluded from earnings and are reported in accumulated other comprehensive income, net of related tax effects. Unrealized gains and losses on actively traded securities are included in earnings. The amortized cost of debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization and accretion is included in interest income.

During the first quarter of 2012, we sold our auction rate securities for $11,260 in cash and recorded a realized loss of $712, which is included in other income (expense). We held no auction rate securities as of December 29, 2012. As of December 31, 2011, our marketable securities included auction rate securities, which are variable-rate debt instruments.

The amortized cost, gross unrealized gains, gross unrealized losses and fair value for marketable securities by major security type were as follows:



	December 29, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Time deposits	$	6,781	$	—	$	—	$	6,781
Auction rate securities	—		—		—		—
	$	6,781	$	—	$	—	$	6,781



	December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Time deposits	$	5,359	$	—	$	—		$	5,359
Auction rate securities	11,972		—		(921		)	11,051
	$	17,331	$	—	$	(921	)	$	16,410

Maturities of debt securities were as follows:



	December 29, 2012				December 31, 2011
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due less than one year	$	6,781	$	6,781	$	5,359	$	5,359
Due after one year through five years	—		—		—		—
Due after ten years	—		—		11,972		11,051
	$	6,781	$	6,781	$	17,331	$	16,410

Inventories

Inventories are stated at the lower of cost, determined principally on the average cost method, or market. The determination of market value involves assessment of numerous factors, including costs to dispose of inventory and estimated selling price. Inventory costs for small models are based upon the average cost to produce specific models and strains. Costs for large models are accumulated in inventory by specific model. Inventory costs for both small and large models are charged to cost of sales in the period the models are sold. Reserves are recorded to reduce the carrying value for inventory determined damaged, obsolete or otherwise unable to be sold. During 2012, we recorded an inventory write-off of $953 associated with a dispute concerning large model inventory held by a vendor which we believe to be non-recoverable.

The composition of inventories is as follows:



	December 29, 2012		December 31, 2011
Raw materials and supplies	$	14,525	$	13,987
Work in process	11,082		13,533
Finished products	62,863		65,449
Inventories	$	88,470	$	92,969

Other Current Assets

Other current assets consist of assets we intend to settle within the next twelve months.



	December 29, 2012		December 31, 2011
Prepaid assets	$	20,404	$	22,828
Deferred tax asset	30,018		30,894
Marketable securities	6,781		5,359
Prepaid income tax	26,169		19,742
Restricted cash	229		229
Other current assets	$	83,601	$	79,052

Property, Plant and Equipment

Property, plant and equipment, including improvements that significantly add to productive capacity or extend useful life, are recorded at cost, while maintenance and repairs are expensed as incurred. We capitalize interest on certain capital projects which amounted to $467 in 2012, $298 in 2011 and $56 in 2010, respectively. We also capitalize internal and external costs incurred during the application development stage of internal use software. Depreciation is calculated for financial reporting purposes using the straight-line method based on the estimated useful lives of the assets as follows: buildings, 20 to 40 years; machinery and equipment, 3 to 20 years; furniture and fixtures, 5 to 10 years; vehicles, 3 to 5 years; computer hardware and software 3 to 8 years and leasehold improvements, the shorter of estimated useful life or the lease periods. We begin to depreciate capital projects in the first full month the asset is placed in service.

The composition of net property, plant and equipment is as follows:



	December 29, 2012			December 31, 2011
Land	$	40,812		$	40,517
Buildings	697,547			696,275
Machinery and equipment	356,960			332,683
Leasehold improvements	34,916			29,975
Furniture and fixtures	25,681			26,775
Vehicles	3,736			5,226
Computer hardware and software	107,171			105,563
Construction in progress	46,186			57,661
Total	1,313,009			1,294,675
Less accumulated depreciation	(595,989		)	(556,645		)
Net property, plant and equipment	$	717,020		$	738,030

Depreciation expense for 2012, 2011 and 2010 was $63,207, $63,435 and $69,244, respectively.

Valuation and Impairment of Goodwill and Indefinite-Lived Intangible Assets

Goodwill and other indefinite-lived intangibles are not amortized and are reviewed for impairment at least annually. Valuation of goodwill requires significant judgment. Assumptions and estimates are used in determining the fair value of assets acquired and liabilities assumed in a business acquisition. A significant portion of the purchase price in our acquisitions is assigned to intangible assets and goodwill. Assigning value to intangible assets requires that we use significant judgment in determining (i) the fair value and (ii) whether such intangibles are amortizable or non-amortizable and, if the former, the period and the method by which the intangible assets will be amortized. We utilize commonly accepted valuation techniques, such as the income approach and the cost approach, as appropriate, in establishing the fair value of long-lived assets. Typically, key assumptions include projected revenue and expense levels used in establishing the fair value of business acquisitions as well as discount rates based on an analysis of our weighted average cost of capital, adjusted for specific risks associated with the assets. Changes in the initial assumptions could lead to changes in amortization expense recorded in our future financial statements.

We perform a test for goodwill impairment annually and whenever events or circumstances make it likely the fair value of a reporting unit has fallen below its carrying amount to determine if impairment exists. Our annual goodwill impairment assessment has historically been completed in the fourth quarter.

In September 2011, the FASB issued ASU 2011-08, Testing Goodwill for Impairment, otherwise known as “Step 0”. Step 0 provides entities with the option to perform a qualitative assessment to determine whether it is “more likely than not” that the reporting unit's fair value is less than its goodwill. The qualitative factors may include macroeconomic conditions, industry and market conditions, cost factors, overall financial performance of the reporting units, events affecting the reporting units, share price, etc.

As management considered whether applying a purely qualitative assessment of goodwill would be sufficient (i.e. applying Step 0 without quantitative support and bypassing Step 1), management reviewed the implied “cushion” for each reporting unit as of the prior year's goodwill assessment. For the PCS reporting unit, given the relatively low cushion of 15% and the preliminary 5 year strategic plan, management concluded that a quantitative analysis would be required. Therefore, management decided to proceed to Step 1 for all reporting units.

The goodwill impairment analysis is a two-step process. The first step is used to identify potential impairment and involves comparing each reporting unit's estimated fair value to its carrying value, including goodwill. Fair value is determined by using a weighted combination of a market-based approach and an income approach, as this combination is deemed to be the most indicative of our fair value in an orderly transaction between market participants. Under the market-based approach, we utilize information about our company as well as publicly available industry information to determine earnings multiples and sales multiples that are used to value our reporting units. Under the income approach, we determine fair value based on the estimated future cash flows of each reporting unit, discounted by an estimated weighted-average cost of capital which reflects the overall level of inherent risk of the reporting unit and the rate of return an outside investor would expect to earn. Determining the fair value of a reporting unit is judgmental in nature and requires the use of significant estimates and assumptions, including revenue growth rates, profit margin percentages, discount rates, perpetuity growth rates, future capital expenditures and future market conditions, among others. Our projections are based on our internal strategic review. Key assumptions, strategies, opportunities and risks from this strategic review along with a market evaluation are the basis for our assessment. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill is not considered to be impaired. However, if the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment.

If the first step of the impairment test indicates a potential impairment, we perform the second step of the goodwill impairment process. In the second step of the process, we calculate an implied fair value of goodwill for the applicable reporting unit by measuring the excess of the estimated fair value of the reporting unit as calculated in step one, over the estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. In determining the fair value of assets we utilize appraisals for the fair value of property and equipment and valuations of certain intangible assets, including client relationships.

Valuation and Impairment of Long-Lived Assets

We assess the carrying value of property, plant and equipment and definite-lived intangible assets whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Factors we consider important which could trigger an impairment review include but are not limited to the following:


•	significant underperformance relative to expected historical or projected future operating results;


•	significant negative industry or economic trends; or


•	significant changes or developments in strategy or operations that negatively affect the utilization of our long-lived assets.

Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Should we determine that the carrying value of held-for-use long-lived assets may not be recoverable, we will measure any impairment based on a projected discounted cash flow method using a discount rate determined by management to be commensurate with the risk inherent in our current business model. We may also estimate fair value based on market prices for similar assets, as appropriate. Significant judgments are required to estimate future cash flows, including the selection of appropriate discount rates and other assumptions. Changes in these estimates and assumptions could materially affect the determination of fair value for these assets.

Long-lived asset groups may be classified as held-for-sale when the following conditions are met: we have committed to a plan to sell the asset group and it is unlikely that significant changes will be made to the plan; the asset group is available for immediate sale in its present condition and it is probable that the sale will be completed within one year; and an active program to locate a buyer has been initiated and the asset group is being marketed at a sale price that is reasonable in relation to its current fair value. Should we determine that the carrying value of held-for-sale long-lived assets exceeds its fair value, we will measure any impairment based on this difference. Subsequent adjustments to the carrying amount of held-for-sale assets based on changes in fair value are recorded but only to the extent of the carrying amount of the asset group when it entered the held-for-sale category.

Other Assets, Noncurrent

Other assets consist of assets that we do not intend to settle within the next twelve months.

The composition of other assets is as follows:



	December 29, 2012		December 31, 2011
Deferred financing costs	$	6,424	$	9,239
Cash surrender value of life insurance policies	25,240		25,057
Long term marketable securities	—		11,051
Equity-method affiliates	8,492		5,737
Other assets	8,503		6,575
Other assets, noncurrent	$	48,659	$	57,659

Equity Method Affiliates

In 2009, we entered into a limited partnership which invests in biotechnology and medical device companies. We committed $20,000, or approximately 12%, of the limited partnership's total committed capital. As of December 29, 2012, we have contributed $8,820 of our total committed capital of $20,000. We recognized equity income/(loss) of $(618), $869 and $(579) for the years ended December 29, 2012, December 31, 2011 and December 25, 2010 respectively. This income/(loss) is reported in Other income (expense), net on our consolidated statements of income. As of December 29, 2012, Equity Method Affiliates had a carrying value of $8,492, which is reported in Other Assets on the consolidated balance sheets.

Accounting for Investment in Life Insurance Contracts

Our investment in life insurance contracts are recorded at cash surrender value. Accordingly, we recognize the initial investment at the transaction price and remeasure the investment at cash surrender value based on fair value of underlying investments or contractual value each reporting period. Investments in life insurance contracts are reported as part of purchases of investments in the statement of cash flows. At December 29, 2012, we held 36 contracts with a carrying value of $25,240 and a face value of $85,138.

Restructuring and Contract Termination Costs

We recognize obligations associated with restructuring activities and contract termination costs by recording a liability at fair value for the costs associated with an exit or disposal activity as well as costs to terminate a contract or an operating lease. The overall purpose of our restructuring actions is to lower operating costs and improve profitability by reducing excess capacities. Restructuring charges are typically recorded in the period in which the plan is approved by our senior management and, where material, our Board of Directors, and when the liability is incurred. A liability for costs that will continue to be incurred under a contract for its remaining term without economic benefit to us is recognized and measured at its fair value when we cease using the right conveyed by the contract. During 2012, 2011 and 2010, we implemented staffing reductions to improve operating efficiency and profitability at various sites. As a result of these actions, for the years ended December 29, 2012, December 31, 2011 and December 25, 2010, we recorded severance and retention charges as shown below. As of December 29, 2012, $1,885 was included in accrued compensation and $1,751 in other long-term liabilities on our consolidated balance sheet. As of December 31, 2011, $1,432 was included in accrued compensation and $1,942 in other long-term liabilities on our consolidated balance sheet.

The following table rolls forward our severance and retention cost liability:



	Severance and Retention Costs
	2012			2011			2010
Balance, beginning of period	$	3,374		$	10,658		$	4,332
Expense	2,576			5,462			16,504
Payments/utilization	(2,314		)	(12,746		)	(10,178		)
Balance, end of period	$	3,636		$	3,374		$	10,658

The following table presents severance and retention costs by classification on the income statement:



	Fiscal Year Ended
	2012		2011		2010
Severance charges included in cost of sales	$	1,203	$	1,012	$	10,860
Severance charges included in selling, general and administrative expense	1,373		4,450		5,644
Total expense	$	2,576	$	5,462	$	16,504

The following table presents severance and retention cost by segment:



	Fiscal Year Ended
	2012		2011			2010
Research models and services	$	1,068	$	1,196		$	4,429
Preclinical services	1,508		4,372			9,145
Corporate	—		(106		)	2,930
Total expense	$	2,576	$	5,462		$	16,504

Other Current Liabilities

Other current liabilities consist of liabilities we intend to settle within the next twelve months.

The composition of other current liabilities is as follows:



	December 29, 2012		December 31, 2011
Accrued income taxes	$	18,216	$	10,552
Current deferred tax liability	410		1,379
Accrued interest and other	2,636		2,102
Other current liabilities	$	21,262	$	14,033

Other Long-Term Liabilities

Other long-term liabilities consist of liabilities we do not intend to settle within the next twelve months.

The composition of other long-term liabilities is as follows:



	December 29, 2012		December 31, 2011
Deferred tax liability	$	13,147	$	16,074
Long-term pension liability	44,316		49,223
Accrued Executive Supplemental Life Insurance Retirement Plan and Deferred Compensation Plan	26,663		25,739
Other long-term liabilities	20,840		17,415
Other long-term liabilities	$	104,966	$	108,451

Stock-Based Compensation Plans

We grant stock options and restricted stock to employees and non-employee directors under our stock-based compensation plans. Stock-based compensation cost is measured at grant date, based on the fair value of the award and is recognized as expense on a straight-line basis over the requisite service period. We estimate the fair value of stock options using the Black-Scholes valuation model. Key inputs and assumptions used to estimate the fair value of stock options include the exercise price of the award, the expected option term, the risk-free interest rate over the option's expected term, the expected annual dividend yield and the expected stock price volatility. The expected stock price volatility assumption is determined using the historical volatility of our common stock over the expected life of the option. The risk-free interest rate is based on the market yield for the five year U.S. Treasury security. The expected life of options is determined using historical option exercise activity.

We record deferred tax assets for stock-based awards based on the amount of stock-based compensation recognized in our consolidated statements of income at the statutory tax rate for the jurisdiction in which we will receive a tax deduction. Differences between the deferred tax assets and the actual tax deduction reported on our income tax returns are recorded in additional paid-in capital. If the tax deduction is less than the deferred tax asset, the calculated shortfall reduces our pool of excess tax benefits. If the pool of excess tax benefits is reduced to zero, then subsequent shortfalls would increase our income tax expense. Our pool of excess tax benefits is computed in accordance with the long-form method.

Revenue Recognition

We recognize revenue related to our products, which include research models, endotoxin and microbial detection (EMD) technology and avian vaccine support products, when persuasive evidence of an arrangement exists, generally in the form of client purchase orders, title and risk of loss have transferred, which occurs upon delivery of the products, the sales price is fixed or determinable and collectability is reasonably assured. These recognition criteria are met at the time the product is delivered to the client's site. Product sales are recorded net of returns upon delivery. For large models, in some cases clients pay in advance of delivery of the product. These advances are deferred and recognized as revenue upon delivery of the product.

Our service revenue is generally evidenced by client contracts and is recognized upon the completion of the agreed upon performance criteria. These performance criteria are generally in the form of either study protocols or specified activities or procedures that we are engaged to perform. These performance criteria are established by our clients and do not contain acceptance provisions based upon the achievement of certain study or laboratory testing results. Revenue of agreed upon rate per unit contracts is recognized as services are performed, based upon rates specified in the contract. Revenue of fixed fee contracts is recognized as services are performed in relation to total estimated costs to complete procedures specified by clients in the form of study protocols. In general, such amounts become billable in accordance with predetermined payment schedules, but are recognized as revenue as services are performed. Revisions in estimated effort to complete the contract are reflected in the period in which the change became known.

Deferred and unbilled revenue are recognized in our consolidated balance sheets. In some cases, a portion of the contract fee is paid at the time the study is initiated. These advances are recorded as deferred revenue and recognized as revenue as services are performed. Conversely, in some cases, revenue is recorded based on the level of service performed in advance of billing the client and recognized as unbilled receivable.

Guarantees

We include standard indemnification provisions in client contracts, which include standard provisions limiting our liability under such contracts, including our indemnification obligations, with certain exceptions. In addition, we are the guarantor of certain facility leases for businesses that have been sold to other parties. When we sell the business, we recognize the retained lease guarantee as a liability on our books at fair value and we amortize the liability ratably as our obligation decreases. In addition, we record contingent losses on the guarantee when it is probable that we will be required to make lease payments in excess of the remaining carrying amount of the guarantee liability and the additional payments are reasonably estimable. See Note 13 for discussion of guarantees related to our Phase I clinical business that we discontinued in 2011.

Derivatives and Hedging Activities

We enter into derivatives to hedge the foreign currency exchange risk in order to minimize the impact of market fluctuations of foreign currency rates on our financial statements. Throughout the year we entered into various contracts to manage this risk. During 2012 and 2011, we entered into forward foreign currency contracts in order to hedge the foreign exchange impact of an intercompany loan between our entities with different functional currencies. As of December 29, 2012, the outstanding forward contract had a fair value of $16. We recorded a hedge gain (loss) of $(1,260) in 2012, $(6,287) in 2011 and $713 in 2010.

Fair Value

We hold cash equivalents, investments and certain other assets that are carried at fair value. We generally determine fair value using a market approach based on quoted prices of identical instruments when available. When market quotes of identical instruments are not readily accessible or available, we determine fair value based on quoted market prices of similar instruments. As of December 29, 2012, we do not have any significant non-recurring measurements of non-financial assets and non-financial liabilities.

The valuation hierarchy for disclosure of the inputs used to measure fair value prioritizes the inputs into three broad levels as follows. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset or liability, including interest rates, yield curves and credit risks, or inputs that are derived principally from or corroborated by observable market data through correlation. Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value. A financial asset or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

Descriptions of the valuation methodologies used for assets and liabilities measured at fair value are as follows:


•	Time deposits—Valued at their ending balances as reported by the financial institutions that hold our securities, which approximates fair value.


•	Auction rate securities—Valued at fair value by management in part utilizing an independent valuation reviewed by management which used pricing models and discounted cash flow methodologies incorporating assumptions that reflect the assumptions a marketplace participant would use.


•	Life policies—Valued at cash surrender value based on fair value of underlying investments.


•	Long-lived assets impaired during the period - valued at fair value at the date of the impairment based upon the income approach.


•	Contingent consideration—Consists of future acquisition-related payments based on certain agreed upon revenue and technical milestones valued using the income approach.


•	Long-Term debt - disclosed fair value based on current market pricing for similar debt.


•	Hedge contract—Valued at fair value by management based on our foreign exchange rates and forward points provided by banks.

Assets measured at fair value on a recurring basis are summarized below:



	Fair Value Measurements at December 29, 2012 using
	Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Unobservable Inputs Level 3		Assets and Liabilities at Fair Value
Time deposits	$	—	$	6,781	$	—	$	6,781
Life policies	—		19,555		—		19,555
Hedge contract	—		16		—		16
Total assets measured at fair value	$	—	$	26,352	$	—	$	26,352



	Fair Value Measurements at December 31, 2011 using
	Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Unobservable Inputs Level 3		Assets and Liabilities at Fair Value
Time deposits	$	—	$	5,359	$	—	$	5,359
Auction rate securities	—		—		11,051		11,051
Life policies	—		19,520		—		19,520
Hedge contract	—		5		—		5
Total assets measured at fair value	$	—	$	24,884	$	11,051	$	35,935

The book value of our term and revolving loans, which are variable rate loans carried at amortized cost, approximates fair value based current market pricing of similar debt. The fair value of our 2.25% Senior Convertible Debentures (2013 Notes), which are carried at cost less unamortized discount on our consolidated balance sheet, was $351,745 as of December 29, 2012. We determine the fair value of these 2013 Notes based on their most recent quoted market price and by reference to the market value of similar debt instruments. We classify the fair value of our debt as Level 2 on the valuation hierarchy.

The following table presents a reconciliation for all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended December 29, 2012 and December 31, 2011. Our auction rate securities were valued at fair value by management in part utilizing an independent valuation reviewed by management which used pricing models and discounted cash flow methodologies incorporating assumptions that reflect the assumptions a marketplace participant would use at December 29, 2012.



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year ended
Auction rate securities	December 29, 2012			December 31, 2011
Beginning balance	$	11,051		$	11,377
Transfers in and/or out of Level 3	—			—
Total gains or losses (realized/unrealized):
Included in earnings (other expenses)	(712		)	(1		)
Included in other comprehensive income	921			(325		)
Purchases, issuances and settlements	(11,260		)	—
Ending balance	$	—		$	11,051



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year ended
Contingent Consideration	December 29, 2012		December 31, 2011
Beginning balance	$	—	$	5,365
Transfers in and/or out of Level 3	—		—
Total gains or losses (realized/unrealized):
Included in selling, general and administrative expense	—		(5,365		)
Included in other comprehensive income	—		—
Purchases, issuances and settlements	—		—
Ending balance	$	—	$	—

During the quarter ended September 29, 2012, we recorded an impairment charge for long-lived assets held and used (see Note 4). As a result, we adjusted the carrying amount of this asset group, consisting of land, buildings, and equipment, to fair value, which was based on the income approach. In applying the income approach, we estimated the future net cash flows associated with operating the asset group and the asset group's salvage value. During the third quarter, the fair value of the asset group was adjusted to $2,197 which we classified as Level 3, whereby the inputs are based on management's internal estimates and not corroborated with observable market data. Subsequent to the impairment, the assets were carried at adjusted cost and are thus not considered assets measured at fair value on a recurring basis.

Income Taxes

We recognize deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and tax basis of our assets and liabilities. We measure deferred tax assets and liabilities using the enacted tax rates and laws that will be in effect when we expect the differences to reverse. We reduce our deferred tax assets by a valuation allowance if, based upon the weight of available evidence both positive and negative, it is more likely than not that we will not realize some or all of the deferred tax assets.

As of December 29, 2012, earnings of non-U.S. subsidiaries considered to be indefinitely reinvested totaled $155,087. No provision for U.S. income taxes has been provided thereon. Upon distribution of those earnings in the form of dividends or otherwise, we would be subject to additional U.S. Federal and state income taxes and foreign income and withholding taxes, which could be material. It is our policy to indefinitely reinvest the earnings of our non-U.S. subsidiaries unless they can be repatriated in a manner that generates a tax benefit or an unforeseen cash need arises in the United States and the earnings can be repatriated in a manner that is substantially tax free. Determination of the amount of unrecognized deferred income tax liabilities on these earnings is not practicable due to the complexities with the hypothetical calculation. Additionally, the amount of the liability is dependent upon the circumstances existing if and when the remittance occurs.

We are a worldwide business and operate in various tax jurisdictions where tax laws and tax rates are subject to change given the political and economic climate in these countries. We report and pay income taxes based upon operational results and applicable law. Our current and deferred tax provision is based upon enacted tax rates in effect for the current and future periods. Any significant fluctuation in tax rates or changes in tax laws and regulations or changes to interpretation of existing tax laws and regulations could cause our estimate of taxes to change resulting in either increases or decreases in our effective tax rate.

We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained upon examination by the taxing authorities, based on the technical merits of the tax position. The tax benefits recognized in our financial statements from such positions are measured based upon the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution.

Foreign Currency Translation

The functional currency of each of our operating foreign subsidiaries is local currency. The financial statements of these subsidiaries are translated into U.S. dollars as follows: assets and liabilities at year-end exchange rates; income, expenses and cash flows at average exchange rates; and equity at historical exchange rates. The resulting translation adjustment is recorded as a component of accumulated other comprehensive income in the accompanying balance sheet. Exchange gains and losses on foreign currency transactions are recorded as other income or expense. We recorded an exchange gain (loss) of $(892) in 2012, $6,237 in 2011 and $(1,299) in 2010.

Other Comprehensive Income

Our other comprehensive income (OCI) consists of unrealized gains (losses) on available-for-sale marketable securities, foreign currency translation adjustments and unrecognized pension gains and losses and prior service costs and credits. These items are presented, before tax effects, in the Consolidated Statements of Other Comprehensive Income. We disclose the tax effects on each item included in Note 6 Equity.

Pension Plans

Our defined benefit pension plans' assets, liabilities and expenses are calculated using certain assumptions. These assumptions are reviewed annually, or whenever otherwise required, based on reviews of current plan information and consultations with independent investment advisers and actuaries. The selection of assumptions requires a high degree of judgment and may materially change from period to period. We do not offer other defined benefits associated with post-retirement benefit plans other than pensions.

We recognize the funded status of our benefit plans on our balance sheet; recognize gains, losses and prior service costs or credits that arise during the period that are not recognized as components of net periodic benefit cost as a component of accumulated other comprehensive income, net of tax; and measure plan assets and obligations as of the date of our fiscal year-end balance sheet. Additional information about certain effects on net periodic benefit cost for the next fiscal year that arise from delayed recognition of the gains or losses, prior service costs or credits, and transition asset or obligation are disclosed in the notes to our financial statements.

Earnings (Loss) Per Share

Basic earnings per share are calculated by dividing net income attributable to common shareowners by the weighted average number of common shares outstanding. Diluted earnings per common share are calculated by adjusting the weighted average number of common shares outstanding to include the number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued, to the extent these additional shares are not anti-dilutive.

Discontinued Operations

The results of discontinued operations, less applicable income taxes (benefit) and assets and liabilities, are reported as a separate component in the accompanying statement of income and consolidated balance sheets for the current and prior periods. The statement of cash flows also reflects separate disclosure of cash flows pertaining to discontinued operations consistently for all periods presented.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

+ References + Details

Business Acquisitions

12 Months Ended

Dec. 29, 2012

Business Combinations [Abstract]

Business Acquisitions

We completed a business acquisition during the year end December 29, 2012. The results of operations of the acquired business are included in the accompanying consolidated financial statements from the date of acquisition. During the years ended December 31, 2011 and December 25, 2010 no significant business acquisitions were completed.

Accugenix

In August 2012, we acquired 100% of Accugenix Inc. (Accugenix), for $18,408 in cash, subject to adjustments. Accugenix is a global provider of cGMP-compliant contract microbial identification testing. The acquisition strengthens our EMD portfolio of products and services by providing state-of-the-art microbial detection services for the biotechnology, pharmaceutical, and medical device manufacturing industries. Accugenix is based in the U.S. and is included in our RMS reportable business segment.

The purchase price allocation, net of $1,547 of cash acquired is as follows:



Current assets (excluding cash)	$	2,162
Property, plant and equipment	549
Current liabilities	(911		)
Long term liabilities	(3,700		)
Definite-lived intangible assets	8,400
Goodwill	10,361
Total purchase price allocation	$	16,861

The definite-lived intangible assets acquired are as follows:



			Weighted average amortization life (in years)
Client relationships	$	1,500	13
Proprietary database	4,100		11
Standard operating procedures	2,500		4
Trademarks	300		12
	$	8,400

The definite-lived intangibles are largely attributed to a proprietary database of thousands of species of organisms and the methods and technology to provide accurate, timely and cost-effective microbial identification services. The goodwill resulting from the transaction of $10,361 is primarily attributed to the potential for growth of the Company's global EMD products and services business through the increased competitive advantage and market penetration provided by the services offered by Accugenix. The goodwill is not deductible for tax purposes.

Vital River

In October 2012, we entered into an agreement to acquire a 75% ownership interest of Vital River, a commercial provider of research models and related services in China, for approximately $26,800 in cash, subject to certain closing adjustments. The acquisition closed in the first quarter of 2013.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e6927-128479

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1490-128463

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e7008-128479

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1500-128463

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4926-128472

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4922-128472

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e6996-128479

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1524-128463

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1392-128463

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e7000-128479

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4934-128472

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1497-128463

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1486-128463

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1383-128463

+ Details

Goodwill and Other Intangible Assets

12 Months Ended

Dec. 29, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

GOODWILL AND OTHER INTANGIBLE ASSETS

As of December 29, 2012 and December 31, 2011, other intangible assets, net, consisted of $3,438 and $3,438 of indefinite-lived intangible assets, respectively.

The following table displays the gross carrying amount and accumulated amortization of definite-lived intangible assets by major class:



	December 29, 2012					December 31, 2011
	Gross carrying amount		Accumulated amortization			Gross carrying amount		Accumulated amortization
Backlog	$	2,875	$	(2,375	)	$	2,856	$	(2,253	)
Client relationships	305,178		(231,902		)	298,813		(210,816		)
Client contracts	15,366		(15,366		)	14,818		(14,818		)
Trademarks and trade names	5,326		(4,821		)	5,022		(4,706		)
Standard operating procedures	2,751		(863		)	650		(650		)
Other identifiable intangible assets	10,033		(4,718		)	5,415		(4,332		)
Total finite-lived intangible assets	$	341,529	$	(260,045	)	$	327,574	$	(237,575	)

The following is a schedule of goodwill by reportable segment and changes in the gross carrying amount and accumulated amortization of goodwill:



				Adjustments to Goodwill								Adjustments to Goodwill
	Balance at December 25, 2010			Acquisitions		Foreign Exchange/ Impairment			Balance at December 31, 2011			Acquisitions		Foreign Exchange/ Impairment		Balance at December 29, 2012
Research Models and Services
Gross carrying amount	$	53,108		$	—	$	(427	)	$	52,681		$	10,361	$	97	$	63,139
Preclinical Services
Gross carrying amount	1,150,330			—		(450		)	1,149,880			—		590		1,150,470
Accumulated impairment loss	(1,005,000		)			—			(1,005,000		)			—		(1,005,000		)
Total
Gross carrying amount	$	1,203,438		$	—	$	(877	)	$	1,202,561		$	10,361	$	687	$	1,213,609
Accumulated impairment loss	(1,005,000		)			—			(1,005,000		)			—		(1,005,000		)
Goodwill, net	$	198,438							$	197,561						$	208,609

Our annual goodwill impairment assessment has historically been completed at the beginning of the fourth quarter. Based on our assessment (step one) for 2012 and 2011, the fair value of our business units exceeded their carrying value and, therefore, our goodwill was not impaired. If the future growth and operating results of our businesses are not as strong as anticipated and/or our market capitalization declines, this could impact the assumptions used in calculating the fair value of our goodwill in the future. To the extent goodwill is impaired, its carrying value will be written down to its implied fair value and a charge will be made to our earnings. Such an impairment charge could materially and adversely affect our operating results and financial condition.

Based on our assessment (step one) for 2010, the fair value of our PCS business was less than its carrying value. The second step of the goodwill impairment test involved us calculating the implied goodwill for the PCS business. The carrying value of the goodwill assigned to the PCS business exceeded the implied fair value of goodwill resulting in a goodwill impairment of $305,000.

Amortization expense of intangible assets for 2012, 2011 and 2010 was $18,068, $21,796 and $24,405, respectively. Amortization of revenue-producing intangible assets is excluded from cost of services.

Estimated amortization expense for each of the next five fiscal years is expected to be as follows:



2013	$	14,369
2014	12,447
2015	11,095
2016	9,986
2017	8,987

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Impairment of Long Lived Assets	12 Months Ended
Impairment of Long Lived Assets	Dec. 29, 2012
Impairment of Long Lived Assets Disclosure [Abstract]
Impairment of Long Lived Assets	For the years ended 2012, 2011 and 2010, based on our most recent market outlook, we assessed our long-lived assets for impairment. The assessment included an evaluation of the ongoing cash flows associated with the use of the long lived assets. In September 2012, we commenced a consolidation of certain research model operations in Europe. As a result, we recorded an impairment charge of $3,548 under the held-for-use model for the disposition of facilities that we own. Following the impairment, the long-lived asset group was classified as held-for-use as we unwind operations over the next several months and will be classified as held-for-sale when the following conditions are met: we have committed to a plan to sell the asset group and it is unlikely that significant changes will be made to the plan; the asset group is available for immediate sale in its present condition and it is probable that the sale will be completed within one year; and an active program to locate a buyer has been initiated and the asset group is being marketed at a sale price that is reasonable in relation to its current fair value. For the year ended 2011, we impaired $692 of long-lived assets in our RMS segment related to facilities no longer in use and not expected to be fully recoverable. For the year ended December 25, 2010, we determined that the long-lived assets associated with our PCS-Massachusetts and PCS-China locations were no longer fully recoverable. We calculated the fair value of the long-lived assets based upon a valuation completed by an independent third party valuation firm., which utilized our estimates of future cash flows discounted using a rate commensurate with the risks inherent in our current business model and the estimated market value of the long lived assets. Accordingly, for the year ended 2010, we recorded an impairment charge of $64,631 for PCS-Massachusetts and $17,186 for PCS-China representing the excess of the carry value of those assets over their respective fair market values. During the fourth quarter of 2011, we sold the assets of our PCS-China facility for $4,593 and recognized a gain on the sale of $3,776. As of December 29, 2012, we continue to hold our PCS-Massachusetts site and are utilizing no production capacity at the site. Additionally, for the years ended December 31, 2011 and December 25, 2010, we determined that the fair value of our in process research and development acquired in the acquisition of SPC exceeded its the carrying value. Based on our evaluation, we recorded an impairment charges of $6,800 and $7,200 for the period ended December 31, 2011 and December 25, 2010, respectively. As of December 31, 2011 we had impaired the entire carrying value of our in process research and development acquired in the acquisition of SPC.

Long-Term Debt and Capital Lease Obligations

12 Months Ended

Dec. 29, 2012

Debt Disclosure [Abstract]

Long-Term Debt and Capital Lease Obligations

AND CAPITAL LEASE OBLIGATIONS

Long-Term Debt

Long-term debt consists of the following:



	December 29, 2012			December 31, 2011
2.25% Senior convertible debentures:
Principal	$	349,995		$	349,995
Unamortized debt discount	(6,726		)	(21,533		)
Net carrying amount of senior convertible debentures	343,269			328,462
Term loan facilities	290,947			356,322
Revolving credit facility	32,000			33,000
Other long-term debt	232			118
Total debt	666,448			717,902
Less: current portion of long-term debt	(139,373		)	(14,732		)
Long-term debt	$	527,075		$	703,170

Minimum future principal payments of long-term debt at December 29, 2012 are as follows:



Fiscal Year
2013	$	141,391
2014	44,963
2015	59,950
2016	426,870
Thereafter	—
Total	$	673,174

On September 23, 2011, we amended our credit agreement to reduce the interest rate margin applicable to the term loans and the revolving loans based on our leverage ratio and extend the maturity date by approximately one year to September 2016. The current credit agreement provides for a $299,750 term loan, a €69,414 Euro term loan and a $350,000 revolving credit facility. Under specified circumstances, we have the ability to increase the term loans and/or revolving line of credit by up to $250,000 in the aggregate. The term loan facility matures in 20 quarterly installments with the last installment due September 23, 2016. The $350,000 revolving facility also matures on September 23, 2016 and requires no scheduled payment before that date. The book value of our term and revolving loans approximates fair value.

The interest rates applicable to our term loans and revolving loans under the credit agreement are, at our option, equal to either the base rate (which is the higher of (1) the prime rate, (2) the federal funds rate plus 0.5% or (3) the one-month adjusted LIBOR rate plus 1%) plus an applicable interest rate margin based upon the leverage ratio or the adjusted LIBOR rate plus an interest rate margin based upon our leverage ratio. Based on our leverage ratio, the margin range for base rate loans is 0% to 0.75% and the margin range for LIBOR based loans is 1% to 1.75%. As of December 29, 2012, the interest rate margin for base rate loans was 0.5% and for adjusted LIBOR loans was 1.50%.

Our obligations under the credit agreement are guaranteed by our material domestic subsidiaries and are secured by substantially all of our assets, including a pledge of 100% of the capital stock of our domestic subsidiaries (other than the capital stock of any domestic subsidiary that is treated as a disregarded entity for U.S. federal income tax purposes) and 65% of the capital stock of certain first-tier foreign subsidiaries and domestic disregarded entities, and mortgages on owned real property in the U.S. having a book value in excess of $10,000. In addition, the credit agreement includes certain customary representations and warranties, events of default, notices of material adverse changes to our business and negative and affirmative covenants. These covenants include (1) the ratio of consolidated earnings before interest, taxes, depreciation and amortization less capital expenditures to consolidated cash interest expense, for any period of four consecutive fiscal quarters, of no less than 3.5 to 1.0 as well as (2) the ratio of consolidated indebtedness to consolidated earnings before interest, taxes, depreciation and amortization for any period of four consecutive fiscal quarters, of no more than 3.25 to 1.0. As of December 29, 2012, we were compliant with all financial covenants specified in the credit agreement. We had $5,030 outstanding under letters of credit as of December 29, 2012.

Our $350,000 of 2.25% Senior Convertible Debentures (the 2013 Notes) are due in June 2013 with interest payable semi-annually and are convertible into cash for the principal amount and shares of our common stock for the conversion premium (or, at our election, cash in lieu of some or all of such common stock), if any, based on an initial conversion rate, subject to adjustment, of 20.4337 shares of our common stock per $1,000 principal amount of notes (which represents an initial conversion price of $48.94 per share). The 2013 Notes are convertible only in the following circumstances and to the following extent:

(1) during any fiscal quarter beginning after July 1, 2006 (and only during such fiscal quarter), if the last reported sale price of our common stock for at least 20 trading days in the period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is more than 130% of the conversion price on the last day of such preceding fiscal quarter;

(2) during the five business-day period after any five consecutive trading-day period, or the measurement period, in which the trading price per note for each day of that measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such day;

(3) upon the occurrence of specified corporate transactions, as described in the indenture for the 2013 Notes; and

(4) at the option of the holder at any time beginning on the date that is two months prior to the stated maturity date and ending on the close of business on the second trading-day immediately preceding the maturity date.

Upon conversion, we will pay cash and shares of our common stock (or, at our election, cash in lieu of some or all of such common stock), if any. If we undergo a fundamental change as described in the indenture for the 2013 Notes, holders will have the option to require us to purchase all or any portion of their notes for cash at a price equal to 100% of the principal amount of the notes to be purchased plus any accrued and unpaid interest, including any additional interest to, but excluding, the purchase date. As of December 29, 2012, no conversion triggers were met.

As of December 29, 2012, our debt included $349,995 of 2013 Notes due June 2013, which has a fair value of approximately $351,745 based on their quoted market value. The long term portion of the 2013 Notes is $240,287, which is based upon our expected capacity on our existing credit facility. Upon maturity, we expect to settle the 2013 Notes utilizing the expected capacity on our existing credit facility, our existing cash and marketable securities or other financing alternatives.

As of December 29, 2012, the carrying amount of the remaining debt discount related to the 2013 Notes was $6,726, which will be amortized over 2 quarters. As of December 29, 2012 the equity component of the 2013 Notes was $88,492. Interest expense related to the 2013 Notes of $22,682 and $22,012, including $7,875 and $7,962 of contractual interest expense, was recognized during the years ended December 29, 2012 and December 31, 2011, respectively, yielding an effective interest rate of 6.93% on the liability component.

We have capital leases for equipment. These leases are capitalized using interest rates considered appropriate at the inception of each lease. Capital lease obligations amounted to $72 and $43 at December 29, 2012 and December 31, 2011, respectively.

Equity

12 Months Ended

Dec. 29, 2012

Stockholders' Equity Note [Abstract]

Equity

Earnings Per Share

Basic earnings per share for 2012, 2011 and 2010 was computed by dividing earnings available to common shareowners for these periods by the weighted average number of common shares outstanding in the respective periods adjusted for contingently issuable shares. The weighted average number of common shares outstanding for 2012 and 2011 have been adjusted to include common stock equivalents for the purpose of calculating diluted earnings per share for these periods.

Options to purchase 4,590,925 shares, 4,249,564 shares and 6,594,313 shares were outstanding at December 29, 2012, December 31, 2011 and December 25, 2010, respectively, but were not included in computing diluted earnings per share because their inclusion would have been anti-dilutive.

In addition, weighted average shares outstanding for 2012, 2011 and 2010 excluded the weighted average impact of 5,255, 703,011 and 777,740 shares, respectively, of non-vested fixed restricted stock awards.

The following table illustrates the reconciliation of the numerator and denominator in the computations of the basic and diluted earnings per share:



	December 29, 2012			December 31, 2011			December 25, 2010
Numerator:
Income (loss) from continuing operations for purposes of calculating earnings per share	$	101,547		$	115,111		$	(328,657	)
Income (loss) from discontinued businesses	$	(4,252	)	$	(5,545	)	$	(8,012	)
Denominator:
Weighted-average shares outstanding—Basic	47,912,135			50,823,063			62,561,294
Effect of dilutive securities:
2.25% senior convertible debentures	—			—			—
Stock options and contingently issued restricted stock	494,185			495,179			—
Warrants	—			—			—
Weighted-average shares outstanding—Diluted	48,406,320			51,318,242			62,561,294
Basic earnings (loss) per share from continuing operations attributable to common shareowners	$	2.12		$	2.26		$	(5.25	)
Basic earnings (loss) per share from discontinued operations attributable to common shareowners	$	(0.09	)	$	(0.11	)	$	(0.13	)
Diluted earnings (loss) per share from continuing operations attributable to common shareowners	$	2.10		$	2.24		$	(5.25	)
Diluted earnings (loss) per share from discontinued operations attributable to common shareowners	$	(0.09	)	$	(0.11	)	$	(0.13	)

The sum of the earnings (loss) per share from continuing operations attributable to common shareowners and the earnings (loss) per share from discontinued operations attributable to common shareowners does not necessarily equal the earnings (loss) per share from net income attributable to common shareowners in the consolidated statements of operations due to rounding.

Treasury Shares

On July 29, 2010, our Board of Directors authorized a $500,000 stock repurchase program. Our Board of Directors increased the stock repurchase authorization by $250,000 to $750,000 on October 20, 2010. In order to enable us to facilitate, on a more timely and cost efficient basis, the repurchase of a substantial number of our shares pursuant to that stock repurchase authorization, we entered into a series of accelerated stock repurchase (ASR) programs. The ASR programs are recorded as two transactions allocated between the initial purchase of treasury stock and a forward contract indexed to our common stock. The treasury shares result in an immediate reduction of shares on our statement of financial position and in our EPS calculation.

On August 26, 2010, we entered into an agreement with a third party investment bank to implement an ASR program to repurchase $300,000 of common stock. Under this ASR, we paid $300,000 on August 27, 2010 from cash on hand and available liquidity, including funds borrowed by us under our $750,000 credit facility. The initial delivery of 6,000,000 treasury shares was recorded at $175,066, the market value at the date of the transaction. We received an additional 750,000 shares under the ASR on September 23, 2010, which were recorded at $23,511, which represented the market value on that date, and we received an additional 1,250,000 shares on December 21, 2010, which were recorded at $43,069, which also represented the market value on that date. During 2010, in total, we repurchased 8,000,000 shares under the ASR program. The ASR was settled on February 11, 2011 based on a discount to the daily volume weighted average price (VWAP) of our common stock over the course of a calculation period. We received the final 871,829 shares based on the settlement of the ASR, which were recorded at $32,509.

On February 24, 2011, we entered into an ASR to repurchase $150,000 of common stock. Under the ASR, we paid $150,000 from cash on hand, including funds borrowed under our credit facility. Upon signing the ASR on February 24, 2011, we received the initial delivery of 3,759,398 shares, which was recorded at $135,860 based on the market value at the date of the transaction, and recorded $14,140 as a forward contract indexed to our common stock. The ASR was settled on May 16, 2011 based on a discount to the daily volume weighted average price (VWAP) of our common stock over the course of a calculation period. We received the final 6,505 shares based on the settlement of the ASR, which were recorded at $257.

During 2012, 2011 and 2010, we repurchased 1,705,521 shares of common stock for $61,442, 3,790,762 shares of common stock for $130,853 and 1,759,857 shares of common stock for $52,888, respectively, under our Rule 10b5-1 Purchase Plans and in open market trading. The timing and amount of any future repurchases will depend on market conditions and corporate considerations.

Share repurchases through ASR programs and open market purchases during 2012, 2011 and 2010 were as follows:



	Fiscal Year Ended
	December 29, 2012		December 31, 2011		December 25, 2010
Number of shares of common stock repurchased	1,705,521		8,428,494		9,759,857
Total cost of repurchase	$	61,442	$	299,479	$	294,534

Additionally, our 2000 Incentive Plan permits the netting of common stock upon vesting of restricted stock awards in order to satisfy individual tax withholding requirements. During the fiscal year ended December 29, 2012, December 31, 2011 and December 25, 2010, we acquired 84,250 shares for $3,047, 79,704 shares for $2,942 and 100,489 shares for $3,638, respectively, as a result of such withholdings.

Accumulated Deficit

None of our accumulated deficit is restricted due to statutory requirements in the local jurisdiction of a foreign subsidiary as of December 29, 2012 and December 31, 2011.

Accumulated Other Comprehensive Income

The composition of accumulated other comprehensive income is as follows:



	Foreign Currency Translation Adjustment			Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs			Net Unrealized Gain on Marketable Securities			Accumulated Other Comprehensive Income
Balance at December 25, 2010	$	51,834		$	(17,603	)	$	(596	)	$	33,635
Period change	(12,329		)	(22,660		)	(325		)	(35,314		)
Tax	(820		)	7,092			—			6,272
Balance at December 31, 2011	$	38,685		$	(33,171	)	$	(921	)	$	4,593
Period change	5,274			(5,862		)	921			333
Tax	98			1,579			—			1,677
Balance at December 29, 2012	$	44,057		$	(37,454	)	$	—		$	6,603

Warrants

Separately and concurrently with the pricing of the 2013 Notes in June 2006, we issued warrants for approximately 7.2 million shares of our common stock. The warrants give the holders the right to receive, for no additional consideration, cash or shares (at our option) with a value equal to the appreciation in the price of our shares above $59.63 and expire between September 13, 2013 and January 22, 2014 over 90 equal increments. The total proceeds from the issuance of the warrants were $65,423.

Noncontrolling Interests

We hold investments in several joint ventures. These joint ventures are separate legal entities whose purpose is consistent with our overall operations and represent geographic and business segment expansions of existing markets. The financial results of all joint ventures were consolidated in our results as we have the ability to exercise control over these entities. The interests of the outside joint venture partners in these joint ventures have been recorded as noncontrolling interest totaling $2,395 and $1,780 at December 29, 2012 and December 31, 2011, respectively.

During the fourth quarter of 2010, we purchased for $4,000 the remaining interest in our Charles River—PCS-China joint venture. The transaction closed on December 24, 2010 with the cash transferred on the following business day. On the date of the purchase, we recorded the purchase price of $4,000 and the balance of the noncontrolling interests of $8,623 to equity.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

+ Details

Income Taxes

12 Months Ended

Dec. 29, 2012

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

An analysis of the components of income (loss) from continuing operations before income taxes and the related provision for income taxes is presented below:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Income (loss) from continuing operations before income taxes
U.S.	$	35,504		$	47,158		$	(149,275	)
Non-U.S.	94,242			85,504			(184,807		)
	$	129,746		$	132,662		$	(334,082	)
Income tax provision
Current:
Federal	$	(1,447	)	$	3,957		$	11,378
Foreign	26,411			20,727			23,782
State and local	1,353			1,124			2,416
Total current	$	26,317		$	25,808		$	37,576
Deferred:
Federal	$	13,132		$	2,961		$	(24,604	)
Foreign	(12,683		)	(11,649		)	(9,696		)
State and local	862			20			(3,253		)
Total deferred	$	1,311		$	(8,668	)	$	(37,553	)
	$	27,628		$	17,140		$	23

Net deferred taxes, detailed below, recognize the impact of temporary differences between the amounts of assets and liabilities recorded for financial statement purposes and such amounts measured in accordance with tax laws.



	December 29, 2012			December 31, 2011
Compensation	$	52,664		$	49,178
Accruals and reserves	5,827			3,712
Financing related	2,545			3,193
Goodwill and other intangibles	(14,982		)	(6,523		)
Net operating loss and credit carryforwards	55,480			57,193
Depreciation related	(37,624		)	(34,389		)
Non-indefinitely reinvested earnings	(146		)	(146		)
Other	(1,245		)	(1,795		)
	62,519			70,423
Valuation allowance	(7,504		)	(12,178		)
Total deferred taxes	$	55,015		$	58,245

Reconciliations of the statutory U.S. Federal income tax rate to effective tax rates are as follows:



	December 29, 2012		December 31, 2011		December 25, 2010
U.S. statutory income tax rate	35.0	%	35.0	%	(35.0	)%
Foreign tax rate differences	(8.0	)%	(6.7	)%	(1.3	)%
State income taxes, net of Federal tax benefit	1.5	%	2.1	%	(0.7	)%
Unbenefitted losses and changes in valuation allowance	0.8	%	0.6	%	0.6	%
Impact of repatriation of non-U.S.earnings	—	%	0.5	%	4.6	%
Research tax credits and enhanced deductions	(8.2	)%	(7.6	)%	(3.6	)%
Enacted tax rate changes	(0.2	)%	(1.0	)%	—	%
Impact of tax uncertainties	(1.2	)%	(1.0	)%	3.1	%
Impact of goodwill and other impairments	—	%	—	%	31.3	%
Releasing valuation allowance on loss from disposition of the Phase 1 Clinical business	—	%	(8.4	)%	—	%
Non taxable gain from settlement of life insurance policy	—	%	(2.2	)%	—	%
Other	1.6	%	1.6	%	1.0	%
	21.3	%	12.9	%	—	%

As of December 29, 2012, we have non-U.S. net operating loss carryforwards, the tax effect of which is $15,778. Of this amount, $564 will expire in 2013, $500 will expire in 2014, and $188 will expire thereafter. The remainder of $14,526 can be carried forward indefinitely. We have U.S. net operating loss carryforwards at the state level, the tax effect of which is $85, which will expire between 2022 and 2023. We have U.S. foreign tax credit carryforwards of $20,251. Of this amount, $14,563 will expire in 2019, $5,368 will expire in 2020, and the remaining $320 thereafter. We have Canadian Scientific Research and Experimental Development (SR&ED) Credit carryforwards of $27,262, which begin to expire in 2029. In accordance with Canadian Federal tax law, we claim SR&ED credits on qualified research and development costs incurred by our Preclinical service facility in Canada, in the performance of projects for non-Canadian clients. Additionally, in accordance with the tax law of the United Kingdom, we claim enhanced deductions related to qualified research and development costs incurred by our Preclinical service facility in Scotland, in the performance of certain client contracts. We have realized capital losses in the U.S., the tax effect of which is $267, which will expire in 2017. We have realized and unrealized capital losses in Canada, the tax effect of which is $63 and $696, respectively. These losses can be carried forward indefinitely.

We record deferred tax assets for stock-based awards based on the amount of stock-based compensation recognized in our Consolidated Statements of Income at the statutory tax rate in the jurisdiction in which we will receive a tax deduction. Differences between the deferred tax assets and the actual tax benefit reported on our income tax returns are recorded in additional paid-in capital. If the tax benefit is less that the deferred tax asset, the calculated shortfall reduces our pool of excess tax benefits. If the pool of excess tax benefits is reduced to zero, the subsequent shortfalls would increase our income tax expense. Our pool of excess tax benefits, which is computed in accordance with the long form method, was $9,558 as of December 29, 2012 and $10,580 as of December 31, 2011. During 2012, we recorded a tax benefit of $125 to additional paid-in-capital related to the exercise of stock options and vesting of restricted shares.

We have fully recognized our deferred tax assets on the belief that it is more likely than not that they will be realized. The only exceptions at December 29, 2012 relate to deferred tax assets primarily for net operating losses in Hong Kong, India, Luxembourg and the Netherlands, capital losses in the U.S. and Canada, and fixed assets in the U.K. The valuation allowance decreased by $4,674 from $12,178 at December 31, 2011 to $7,504 at December 29, 2012. The decrease in valuation allowance was primarily due to the liquidation of our former Chinese Preclinical services subsidiary resulting in the expiration of $5,380 of net operating losses and the reduction of the related valuation allowance. Excluding this write off, we increased the valuation allowance by $706 due to the determination, after consideration of all evidence, both positive and negative, that it is more likely than not that these deferred tax assets will not be realized.

During the fourth quarter of 2010, we took actions to divest of our Phase 1 clinical business. We recorded in discontinued operations a deferred tax asset associated with the excess of the tax outside basis over the basis for financial reporting purposes of the Phase 1 clinical business. As of the fourth quarter of 2010, we determined that we did not meet the more-likely-than-not realization threshold for this deferred tax asset and we recorded a valuation allowance against it as part of discontinued operations. During the first quarter of 2011, we determined that the tax loss would more-likely-than-not be benefitted as a worthless stock deduction. As such, we released the valuation allowance recorded against the tax loss on the Phase 1 clinical business and recognized a $11,111 benefit in continuing operations during the first quarter of 2011.

At December 29, 2012, the amount recorded for unrecognized tax benefits was $30,996. At December 31, 2011 the amount recorded for unrecognized income tax benefits was $27,976. The $3,020 increase during 2012 is primarily attributable to the ongoing evaluation of uncertain tax positions in the current and prior periods, settlement of tax controversies and foreign exchange movement. Significant increases during 2012 relate primarily to our Preclinical services subsidiary in Montreal and include an increase of $2,408 related to Canadian transfer pricing exposures for the years 2006 through 2012 resulting from headquarter service charges and $3,034 related to Canadian SR&ED and Quebec R&D benefits claimed in 2005 through 2012. Additionally, the unrecognized tax benefits were reduced by $2,954 related to the conclusion of the 2003 and 2004 SR&ED controversy that occurred in the third quarter of 2012.

The amount of unrecognized income tax benefits that, if recognized, would favorably impact the effective tax rate was $24,386 as of December 29, 2012 and $22,477 as of December 31, 2011. The $1,909 increase is primarily attributable to ongoing evaluation of uncertain tax positions in the current and prior periods and foreign exchange movement partially offset by a decrease due to the conclusion of the Canadian controversy.

A reconciliation of our beginning and ending unrecognized income tax benefits is as follows:



	December 29, 2012			December 31, 2011			December 25, 2010
Beginning balance	$	27,976		$	33,427		$	21,389
Additions:
Tax positions for current year	1,907			1,714			13,142
Tax positions for prior years	4,196			—			693
Reductions:
Tax positions for current year	—			—			—
Tax positions for prior years	(28		)	(239		)	(1,797		)
Settlements	(3,055		)	(6,926		)	—
Expiration of statute of limitations	—			—			—
Ending balance	$	30,996		$	27,976		$	33,427

We continue to recognize interest and penalties related to unrecognized income tax benefits in income tax expense. The total amount of accrued interest related to unrecognized income tax benefits as of December 29, 2012 and December 31, 2011 was $1,964 and $1,515, respectively. The $449 increase is primarily due to ongoing evaluation of uncertain tax positions in the current and prior periods and foreign exchange movement partially offset by a decrease due to the conclusion of the Canadian SR&ED controversy. We have not recorded a provision for penalties associated with uncertain tax positions.

We conduct business in a number of tax jurisdictions. As a result, we are subject to tax audits on a regular basis including, but not limited to, such major jurisdictions as the United States, the United Kingdom, France, Japan, Germany and Canada. With few exceptions, we are no longer subject to U.S. and international income tax examinations for years before 2005.

We and certain of our subsidiaries are currently under audit by the Minister of Revenue Quebec provincial tax authority (MRQ) and various state tax authorities. We do not anticipate resolution of these audits to have a material impact on our financial statements.

We are currently under audit by the Canadian Revenue Authority (CRA) for the years 2006 through 2009. In the fourth quarter of 2012, we received a draft reassessment from the CRA related to the transfer pricing in our Preclinical services operations in Montreal. The CRA proposes to disallow certain deductions related to headquarter service charges for the years 2006 through 2009. We intend to file an objection with the CRA upon receipt of the Notice of Reassessment and apply to the Internal Revenue Service (IRS) and the CRA for relief pursuant to the competent authority procedure provided in the tax treaty between the U.S. and Canada. We believe that the controversy will likely be ultimately settled via the competent authority process. In the fourth quarter of 2012, we established a reserve for this uncertain tax position of $2,408 related to years 2006 through 2012 to reduce the tax benefit recognized for these deductions in Canada to the level that we believe will likely be realized upon the ultimate resolution of this controversy. Additionally, in the fourth quarter of 2012, we recognized a tax asset of $2,981, which is included in Other Assets, that represents the correlative relief that we believe will more likely than not be received in the U.S. via the competent authority process. The actual amounts of the liability for Canadian taxes and the asset for the correlative relieve in the U.S. could be different based upon the agreement reached between the IRS and CRA.

During the third quarter of 2012, we reached a settlement with the Canadian Department of Justice with respect to our appeal of the CRA's reassessments of our 2003 and 2004 SR&ED claims to the Tax Court of Canada. As agreed to in the settlement which applies only to our 2003 and 2004 claims, the CRA issued final reassessments in the third quarter of 2012 and we filed a Notice of Discontinuance with the Tax Court of Canada concluding the controversy. In the third quarter, we recorded a benefit due to the settlement of $586, of which $248 is recorded in pretax profit and $338 is recorded in tax expense. Our SR&ED claims in 2005 and forward remain open to audit. We believe that we have appropriately provided for these claims as well as all uncertain tax positions.

During 2012, the Canadian government enacted a reduction in the SR&ED credit, which is applicable for years 2014 and beyond. This change in law will reduce our SR&ED credits by 25% starting in 2014. Subsequent to our December 29, 2012 year end, the French government enacted a tax law change that applies retroactively to 2012. We will record the 2012 impact of this law change, which limits the deductibility of interest by our French affiliates for 2012 and beyond, as a discrete event in our financial statement for the first quarter ending March 30, 2013. The total 2012 impact from the tax law change is additional tax expense of $714. On February 25, 2013, the German government enacted a law change that restricts the deductibility of losses in Germany. Application of these new rules may increase our tax liability in Germany and our effective tax rate in 2013 and beyond. We are still assessing the impact of this new tax law on our tax liability and 2013 effective tax rate.

During 2010, we executed an agreement to implement an accelerated share repurchase (ASR) program to repurchase $300,000 of common stock. The ASR resulted in a cash need in the United States that was previously unforeseen. In accordance with our policy with respect to the unremitted earnings of our non-U.S. subsidiaries, we evaluated whether a portion of the foreign earnings could be repatriated in order to fund the ASR. We determined that approximately $229,792 of earnings that were previously indefinitely reinvested and approximately $63,640 in basis in our non-U.S. subsidiaries could be repatriated in a substantially tax-free manner. As a result, in 2010, we changed our indefinite reinvestment assertion with respect to these earnings and accrued the cost to repatriate $10,334, of which $15,264 is reflected as Income Tax Expense, with an offsetting benefit of $4,930, which is recorded in the Cumulative Translation Adjustment account. During 2010, we repatriated approximately $293,432 to the U.S. to partially fund the ASR and the $30,000 termination fee for a proposed acquisition.

In accordance with our policy, the remaining undistributed earnings of our non-U.S. subsidiaries remain indefinitely reinvested as of the end of 2012 as they are required to fund needs outside the U.S. and cannot be repatriated in a manner that is substantially tax free. During the third quarter of 2011, we restructured our international operations in a tax-free manner to allow us more flexibility in accessing our offshore cash to fund needs outside the U.S. As of December 29, 2012, the earnings of our non-U.S. subsidiaries considered to be indefinitely reinvested totaled $155,087. No provision for U.S. income taxes has been provided thereon. Upon distribution of those earnings in the form of dividends or otherwise, we would be subject to additional U.S. Federal and state income taxes and foreign income and withholding taxes, which could be material. Determination of the amount of unrecognized deferred income tax liabilities on these earnings is not practicable because of the complexities with the hypothetical calculation. Additionally, the amount of liability is dependent on circumstances existing if and when remittance occurs.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Employee Benefits

12 Months Ended

Dec. 29, 2012

Compensation and Retirement Disclosure [Abstract]

Employee Benefits

Charles River Laboratories Employee Savings Plan

Our defined contribution plan, the Charles River Laboratories Employee Savings Plan, qualifies under section 401(k) of the Internal Revenue Code. It covers substantially all U.S. employees and contains a provision whereby we match a percentage of employee contributions. The costs associated with this defined contribution plan totaled $4,364, $4,178 and $4,694, in 2012, 2011 and 2010, respectively.

Charles River Laboratories Deferred Compensation Plan and Executive Supplemental Life Insurance Retirement Plan

The Charles River Laboratories Deferred Compensation Plan (Deferred Compensation Plan) is designed for select eligible employees, including our Named Executive Officers. Under the Deferred Compensation Plan, participants may elect to defer bonus and salary amounts, and may select the investment returns to be applied to deferred amounts from among a number of reference mutual funds as well as an interest crediting rate. The plan is not qualified under Section 401(a) of the Internal Revenue Code and is not subject to the Employee Retirement Income Security Act of 1974. At the present time, no contributions will be credited to the plan, except as set forth below. Participants must specify the distribution date for deferred amounts at the time of deferral, in accordance with applicable IRS regulations. Generally, amounts may be paid in lump sum or installments upon retirement or termination of employment, or later if the employee terminates employment after age 55 and before age 65. Amounts may also be distributed during employment, subject to a minimum deferral requirement of three years.

In addition to the Deferred Compensation Plan, certain officers and key employees also participate, or in the past participated, in our amended and restated Executive Supplemental Life Insurance Retirement Plan (ESLIRP) which is a non-funded, non-qualified arrangement. Annual benefits under this plan will equal a percentage of the highest five consecutive years of compensation, offset by amounts payable under the Charles River Laboratories, Inc. Pension Plan and Social Security.

In addition, we provide certain active employees an annual contribution into their Deferred Compensation Plan account of 10% of the employee's base salary plus the lesser of their target annual bonus or actual annual bonus. The costs associated with these defined contribution plans, including the ESLIRP, totaled $2,930, $2,048 and $3,082 in 2012, 2011 and 2010, respectively.

We have invested in several corporate-owned key-person life insurance policies as well as mutual funds and U.S. Treasury Securities with the intention of using these investments to fund the ESLIRP and the Deferred Compensation Plan. Participants have no interest in any such investments. At December 29, 2012 and December 31, 2011 the cash surrender value of these life insurance policies were $25,240 and $25,057, respectively.

Post-Retirement Health and Life Insurance Plans

Our Montreal location offers post-retirement life insurance benefits to its employees and post-retirement medical & dental insurance coverage to certain executives. The plan is non-contributory and unfunded. As of December 29, 2012, the accumulated benefit obligation related to the plan was $1,344. In addition, accumulated other comprehensive income includes $105 of deferred gains and losses, net of tax. Expenses related to the plan were $201, $188 and $177 for 2012, 2011 and 2010, respectively.

Pension Plans

The Charles River Laboratories, Inc. Pension Plan is a qualified, non-contributory defined benefit plan covering certain US employees. Effective 2002, the plan was amended to exclude new participants from joining and in 2008 the accrual of benefits was frozen.

The Charles River Pension Plan is a defined contribution and defined contribution pension plan covering certain UK employees. Benefits are based on participants' final pensionable salary and years of service. Participants' rights vest immediately. Effective December 31, 2002, the plan was amended to exclude new participants from joining the defined benefit section of the plan and a defined contribution section was established for new entrants. Contributions under the defined contribution plan are determined as a percentage of gross salary.

The defined benefit pension plans for Japan and our Canadian RMS operation are non-contributory plans that cover substantially all employees of those respective companies. Benefits are based upon length of service and final salary. In addition, our French RMS operation has a defined benefit statutory indemnity plan covering most of its employees.

The following tables summarize the funded status of our defined benefit plans and amounts reflected in our consolidated balance sheets.

Obligations and Funded Status:



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012			2011
Change in benefit obligations
Benefit obligation at beginning of year	$	251,916		$	228,810		$	26,456		$	30,572
Service cost	3,729			3,056			640			636
Interest cost	11,289			12,107			892			1,201
Plan participants' contributions	53			574			—			—
Curtailment	—			—			—			—
Settlements	—			(158		)	—			(5,113		)
Benefit payments	(6,186		)	(6,664		)	(743		)	(764		)
Actuarial loss (gain)	16,699			13,319			127			(76		)
Plan amendments	—			53			—			—
Administrative expenses paid	(266		)	(272		)	—			—
Effect of foreign exchange	5,829			1,091			—			—
Benefit obligation at end of year	$	283,063		$	251,916		$	27,372		$	26,456
Change in plan assets
Fair value of plan assets at beginning of year	$	202,652		$	192,429		$	—		$	—
Plan assets assumed	—			—			—			—
Actual return on plan assets	22,467			3,661			—			—
Settlements	—			(158		)	—			(5,113		)
Employer contributions	14,222			12,170			743			5,877
Plan participants' contributions	53			574			—			—
Benefit payments	(6,186		)	(6,664		)	(743		)	(764		)
Premiums paid	(266		)	(272		)	—			—
Other	—			—			—			—
Effect of foreign exchange	5,730			912			—			—
Fair value of plan assets at end of year	$	238,672		$	202,652		$	—		$	—
Funded status
Projected benefit obligation	$	283,063		$	251,916		$	27,372		$	26,456
Fair value of plan assets	238,672			202,652			—			—
Net balance sheet liability	$	44,391		$	49,264		$	27,372		$	26,456
Classification of net balance sheet liability
Non-current assets	$	—		$	11		$	—		$	—
Current liabilities	75			52			709			717
Non-current liabilities	44,316			49,223			26,663			25,739

Amounts recognized in statement of financial position as part of accumulated other comprehensive income ("AOCI"):



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012		2011
Net actuarial loss	$	58,594		$	52,384		$	3,056	$	3,190
Net prior service cost/(credit)	(6,815		)	(7,117		)	1,320		1,981
Total	$	51,779		$	45,267		$	4,376	$	5,171
The accumulated benefit obligation for all defined benefit plans	$	275,162		$	245,705		$	26,495	$	24,663

Information for defined benefit plans with accumulated benefit obligation in excess of plan assets:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Projected benefit obligation	$	277,187	$	247,232	$	27,372	$	26,457
Accumulated benefit obligation	271,204		242,467		26,495		24,663
Fair value of plan assets	233,182		198,689		—		—

Information for defined benefit plans with projected benefit obligation in excess of plan assets:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Projected benefit obligation	$	283,063	$	251,723	$	27,372	$	26,457
Accumulated benefit obligation	275,162		245,574		26,495		24,663
Fair value of plan assets	238,672		202,448		—		—

Amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year:



	Pension Benefits			Supplemental Retirement Benefits
Amortization of net actuarial (gain)/loss	$	2,764		$	249
Amortization of net prior service cost/(credit)	(622		)	660

Components of net periodic benefit cost:



	Pension Benefits									Supplemental Retirement Benefits
	2012			2011			2010			2012		2011			2010
Service cost	$	3,729		$	3,056		$	2,617		$	640	$	636		$	597
Interest cost	11,289			12,107			11,214			892		1,201			1,341
Expected return on plan assets	(13,799		)	(13,677		)	(12,185		)	—		—			—
Amortization of prior service cost (credit)	2,461			(617		)	(598		)	260		498			498
Amortization of net loss (gain)	(609		)	978			749			660		210			155
Net periodic benefit cost	3,071			1,847			1,797			2,452		2,545			2,591
Settlement	—			23			27			—		(487		)	—
Net pension cost	$	3,071		$	1,870		$	1,824		$	2,452	$	2,058		$	2,591

Rollforward of accumulated other comprehensive income:



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012			2011
Beginning balance	$	45,267		$	22,311		$	5,171		$	5,467
Amortization of prior service cost	(2,461		)	617			(660		)	(497		)
Amortization of net gain (loss)	609			(978		)	(260		)	(210		)
Asset loss/(gain)	8,030			10,016			125			—
Liability loss/(gain)	—			13,319			—			(76		)
Recognized prior service (cost) credit due to curtailment	—			53			—			—
Recognized (loss)/gain due to settlement	—			(23		)	—			487
Currency impact	334			(48		)	—			—
Ending balance	$	51,779		$	45,267		$	4,376		$	5,171

Assumptions

Weighted-average assumptions used to determine benefit obligations:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Discount rate	4.13	%	4.47	%	2.63	%	3.42	%
Rate of compensation increase	3.04	%	3.12	%	2.50	%	2.50	%

Weighted-average assumptions used to determine net periodic benefit cost:



	Pension Benefits						Supplemental Retirement Benefits
	2012		2011		2010		2012		2011		2010
Discount rate	4.47	%	5.20	%	5.63	%	3.42	%	4.34	%	5.22	%
Expected long-term return on plan assets	6.55	%	6.79	%	7.11	%	—		—		—
Rate of compensation increase	3.12	%	3.48	%	2.50	%	2.50	%	2.50	%	2.50	%

The expected long-term rate of return on plan assets was made considering the pension plan's asset mix, historical returns and the expected yields on plan assets. The discount rates reflect the rates at which amounts that are invested in a portfolio of high-quality debt instruments would provide the future cash flows necessary to pay benefits when they become due. The rate of compensation increase reflects the expected annual salary increases for the plan participants based on historical experience and our current employee compensation strategy.

Plan assets:

Our pension plans' weighted-average asset allocations are as follows:



	Target Allocation		Pension Benefits
	2013		2012		2011
Equity securities	67	%	60	%	59	%
Fixed income	31	%	36	%	37	%
Other	2	%	4	%	4	%
Total	100	%	100	%	100	%

Our investment objective is to obtain the highest possible return commensurate with the level of assumed risk. Fund performances are compared to benchmarks including the S&P 500 Index, Russell 2000, BC Aggregate Index and MSCI EAFE Index. Our Investment Committee meets on a quarterly basis to review plan assets.

Plan assets did not include any of our common stock at December 29, 2012 and December 31, 2011, respectively.

The fair value of our pension assets by asset category are as follows.



	Fair Value Measurements at December 29, 2012
Assets	Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Unobservable Inputs Level 3		Assets at Fair Value
Cash	$	1,336	$	—	$	—	$	1,336
Common stock(a)	100,864		4,261		—		105,125
Debt securities(a)	63,283		3,169		—		66,452
Mutual funds(b)	55,453		8,551		—		64,004
Life insurance policies(c)	—		43		—		43
Other (d)	224		—		1,488		1,712
Total	$	221,160	$	16,024	$	1,488	$	238,672


(a)	This category comprises investments valued at the closing price reported on the active market on which the individual securities are traded.


(b)	This category comprises mutual funds valued at the net asset value of shares held at year end.


(c)	This category comprises life insurance policies valued at cash surrender value at year end.


(d)	This comprises annuity policies held with various insurance companies valued at face value.



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance at December 31, 2011	$	1,419
Actual return on plan assets:
Relating to assets still held at December 29, 2012	51
Relating to assets sold during the period
Purchases, sales and settlements	(78		)
Transfers in and/or out of Level 3	96
Balance at December 29, 2012	$	1,488

Contributions:

During 2012, we contributed $13,966 to our pension plans. We expect to contribute $13,868 to our pension plan in 2013.

Estimated future benefit payments:



	Pension Benefits		Supplemental Retirement Benefits
2013	$	7,180	$	721
2014	6,773		800
2015	7,559		745
2016	8,591		12,379
2017	8,657		721
2018-2022	$	54,207	$	8,811

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

+ Details

Stock Plans and Stock Based Compensation

12 Months Ended

Dec. 29, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Plans and Stock Based Compensation

PLANS AND STOCK BASED COMPENSATION

We have share-based compensation plans under which employees and non-employee directors may be granted share based awards. During 2012, 2011 and 2010, the primary share-based awards and their general terms and conditions are as follows:


•	Stock options, which entitle the holder to purchase a specified number of shares of common stock at an exercise price equal to the closing market price of our common stock on the date of grant; vest incrementally, typically over three to four years; and generally expire seven to ten years from date of grant.


•	Restricted stock grants, which entitle the holder to receive at no cost, a specified number of shares of common stock that vests incrementally, typically over three to four years. Recipients are entitled to cash dividends and to vote their respective shares upon grant.


•	Performance based stock awards, which entitle the holder to receive at no cost, a specified number of shares of common stock within a range of shares from zero to a specified maximum. Payout of this award is contingent upon achievement of individualized stretch goals as determined by our Compensation Committee of the Board of Directors.

At the Annual Meeting of Shareholders held on May 8, 2007, our shareholders approved the 2007 Incentive Plan (2007 Plan). The 2007 Plan was subsequently amended in 2009 and 2011, and in each case the amendments were approved by our shareholders at the respective annual meeting of shareholders. The 2007 Plan provides that effective upon approval, no further awards will be granted under preexisting stock option and incentive plans; provided, however, that any shares that have been forfeited or canceled in accordance with the terms of the applicable award under a preexisting plan may be subsequently awarded in accordance with the terms of the preexisting plan. The 2007 Plan allows a maximum of 12.2 million shares to be awarded of which restricted stock grants and performance based stock awards count as 2.3 shares and stock options count as one share. In the past, we had various employee stock and incentive plans under which stock options and other share-based awards were granted. Stock options and other share-based awards that were granted under prior plans and were outstanding on May 8, 2007, continue in accordance with the terms of the respective plans.

At December 29, 2012, approximately 3.0 million shares were authorized for future grants under our share-based compensation plans. We settle employee share-based compensation awards with newly issued shares.

The estimated fair value of our stock-based awards, less expected forfeitures, is amortized over the awards' vesting period on a straight-line basis. The following table presents stock-based compensation included in our consolidated statement of income:



	December 29, 2012			December 31, 2011			December 25, 2010
Stock-based compensation expense in:
Cost of sales	$	5,470		$	5,983		$	7,186
Selling and administration	16,385			15,723			18,340
Income from continuing operations, before income taxes	21,855			21,706			25,526
Provision for income taxes	(7,793		)	(7,784		)	(9,179		)
Net income attributable to common shareowners	$	14,062		$	13,922		$	16,347

We capitalized no stock-based compensation related costs for the years ended 2012, 2011 and 2010.

The fair value of stock-based awards granted during 2012, 2011 and 2010 was estimated on the grant date using the Black-Scholes option-pricing model with the following weighted-average assumptions:



	December 29, 2012			December 31, 2011			December 25, 2010
Expected life (in years)	4.5			4.2			4.5
Expected volatility	35		%	33		%	34		%
Risk-free interest rate	0.84		%	2.21		%	2.35		%
Expected dividend yield	0		%	0		%	0		%
Weighted—average grant date fair value	$	10.94		$	11.32		$	11.96

Stock Options

The following table summarizes stock option activities under our plans:



	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding as of December 31, 2011	6,081,263		$	38.25
Options granted	590,675		$	36.09
Options exercised	(650,255	)	$	28.34
Options canceled	(161,280	)	$	39.00
Options outstanding as of December 29, 2012	5,860,403		$	39.11
Options exercisable as of December 29, 2012	3,871,131		$	41.27	2.25 years	$	7,600

As of December 29, 2012, the unrecognized compensation cost related to 1,989,722 unvested stock options expected to vest was $12,924. This unrecognized compensation will be recognized over an estimated weighted-average amortization period of 26 months.

The total intrinsic value of options exercised during the fiscal years ending December 29, 2012, December 31, 2011 and December 25, 2010 was $5,135, $7,950 and $1,767, respectively, with intrinsic value defined as the difference between the market price on the date of exercise and the grant date price. The total amount of cash received from the exercise of options during 2012 was $18,359. The actual tax benefit realized for the tax deductions from option exercises totaled $1,682 for the year ended December 29, 2012.

The following table summarizes significant ranges of outstanding and exercisable options as of December 29, 2012:



	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life (In years)	Weighted Average Exercise Price		Aggregate Intrinsic Value		Options Exercisable	Weighted Average Remaining Contractual Life (In years)	Weighted Average Exercise Price		Aggregate Intrinsic Value
$20.01–$30.00	844,220	3.12	25.30		9,775,196		519,445	3.08	25.59		5,864,633
$30.01–$40.00	3,097,578	3.97	36.62		2,334,531		1,436,354	2.53	36.35		1,734,878
$40.01–$50.00	1,383,030	1.71	45.64		—		1,379,757	1.70	45.66		—
$50.01–$60.00	487,255	2.10	57.99		—		487,255	2.10	57.99		—
$60.01–$70.00	48,320	2.30	62.56		—		48,320	2.30	62.56		—
Totals	5,860,403	3.14	$	39.11	$	12,109,727	3,871,131	2.25	$	41.27	$	7,599,511

The aggregate intrinsic value in the preceding table represents the total intrinsic value, based on a closing stock price of $36.88 as of December 29, 2012, that would have been received by the option holders had all option holders exercised their options as of that date. The total number of in-the-money options exercisable as of December 29, 2012 was 1,854,088.

The following table summarizes the non-vested stock option activity in the equity incentive plans for the fiscal year ending December 29, 2012:



	Non-vested Stock Options		Weighted Average Exercise Price
December 31, 2011	2,487,889		$	34.89
Granted	590,675		36.09
Forfeited	(47,846	)	35.08
Vested	(1,040,996	)	35.53
December 29, 2012	1,989,722		$	34.91

Restricted Stock

Stock compensation expense associated with restricted common stock is charged for the market value on the date of grant, less estimated forfeitures, and is amortized over the awards' vesting period on a straight-line basis.

The following table summarizes the restricted stock activity for 2012:



	Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2011	703,011		$	35.70
Granted	541,820		36.10
Vested	(288,549	)	35.99
Canceled	(21,777	)	43.16
Outstanding as of December 29, 2012	934,505		$	35.83

As of December 29, 2012, the unrecognized compensation cost related to shares of unvested restricted stock expected to vest was $21,970. This unrecognized compensation will be recognized over an estimated weighted-average amortization period of 31 months. The total fair value of restricted stock grants that vested during the fiscal years ending December 29, 2012, December 31, 2011 and December 25, 2010 was $10,385, $10,989 and $13,072, respectively. The actual tax benefit realized for the tax deductions from restricted stock grants that vested totaled $3,720 for the year ended December 29, 2012.

Performance Based Stock Award Program

We made performance-based awards to our executives during 2007, 2008 and 2009. Payout of these awards was contingent upon achievement of individualized goals. Compensation expense associated with these awards of $(28), $188 and $496 has been recorded during 2012, 2011 and 2010, respectively.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Commitments and Contingencies

12 Months Ended

Dec. 29, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Operating Leases

We have commitments for various operating leases for machinery and equipment, vehicles, office equipment, land and office space. As a matter of ordinary business course, we occasionally guarantee certain lease commitments to landlords. Rent expense for all operating leases was $18,246, $18,778 and $22,635 in 2012, 2011 and 2010, respectively. Future minimum payments by year and in the aggregate, under noncancellable operating leases with initial or remaining terms of one year or more, consist of the following at December 29, 2012:



2013	$	15,440
2014	12,749
2015	8,953
2016	7,196
2017	5,889
Thereafter	14,257

Insurance

We maintain various insurance policies that maintain large deductibles up to $750, some with or without stop-loss limits, depending on market availability. Deductibles for certain property insurance policies in the event of a catastrophic event for certain locations based on a percentage of the insured assets, which may exceed $750.

Litigation

Various lawsuits, claims and proceedings of a nature considered normal to our business are pending against us. In the opinion of management, the outcome of such proceedings and litigation currently pending will not materially affect our consolidated financial statements. We expense as incurred legal costs expected to be incurred in connection with loss contingencies.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Termination Fee - WuXi PharmaTech	12 Months Ended
Termination Fee - WuXi PharmaTech	Dec. 31, 2011
Termination Fee Disclosure [Abstract]
Termination Fee - WuXi PharmaTech	—WuXi Pharma Tech On July 29, 2010, we signed a termination agreement with WuXi to terminate the previously announced acquisition agreement. In accordance with the terms of the termination agreement, on July 29, 2010, we paid WuXi a $30,000 termination fee for full satisfaction of the parties' obligations under the acquisition agreement. The termination agreement also included mutual releases of any claims and liabilities arising out of or relating to the acquisition agreement.

Business Segment and Geographic Information

12 Months Ended

Dec. 29, 2012

Segment Reporting [Abstract]

Business Segment and Geographic Information

SEGMENT AND GEOGRAPHIC INFORMATION

We report two business segments, Research Models and Services (RMS) and Preclinical Services (PCS). Our RMS segment includes sales of research models, genetically engineered models and services (GEMS), insourcing solutions (IS), research animal diagnostic services (RADS), discovery research services (DRS), Endotoxin and Microbial Detection (EMD) products and services ( formerly in vitro), and avian vaccine products and services. Our PCS segment includes services required to take a drug through the development process, which includes DRS, safety assessment and biopharmaceutical services.

The following table presents sales and other financial information by business segment. Net sales represent sales originating in entities primarily engaged in either provision of RMS or PCS. Long-lived assets include property, plant and equipment and other long-lived assets.



	2012		2011		2010
Research Models and Services
Net sales	$	695,083	$	705,419	$	666,986
Gross margin	289,750		297,327		278,391
Operating income	202,362		206,319		184,464
Total assets	698,134		687,346		711,824
Long-lived assets	272,559		282,388		277,193
Depreciation and amortization	37,541		37,240		37,657
Capital expenditures	36,856		34,257		27,694
Preclinical Services
Net sales	$	434,447	$	437,228	$	466,430
Gross margin	102,331		104,915		106,369
Operating income	34,628		24,925		(379,726		)
Total assets	888,210		869,881		1,016,864
Long-lived assets	493,120		513,302		537,786
Depreciation and amortization	43,734		47,990		55,992
Capital expenditures	10,678		14,886		15,166

A reconciliation of segment operating income to consolidated operating income is as follows:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Total segment operating income	$	236,990		$	231,244		$	(195,262	)
Unallocated corporate overhead	(71,225		)	(56,938		)	(73,250		)
Termination fee (Note 11)	—			—			(30,000		)
Consolidated operating income	$	165,765		$	174,306		$	(298,512	)

Net sales for each significant service area are as follows:



	Fiscal Year Ended
	December 29, 2012		December 31, 2011		December 25, 2010
Research models	$	381,790	$	401,660	$	386,872
Research model services	219,671		220,698		208,363
EMD	93,622		83,061		71,751
Total research models	695,083		705,419		666,986
Total preclinical services	434,447		437,228		466,430
Total sales	$	1,129,530	$	1,142,647	$	1,133,416

A summary of unallocated corporate overhead consists of the following:



	December 29, 2012			December 31, 2011			December 25, 2010
Stock-based compensation expense	$	11,724		$	11,159		$	11,893
U.S. retirement plans	4,831			3,802			3,921
Audit, tax and related expense	3,019			3,069			2,805
Salary and bonus	19,997			18,486			19,617
Global IT	12,622			11,785			12,793
Employee health, LDP and fringe benefit expense	(4,569		)	(2,952		)	(2,231		)
Consulting and professional services	4,434			8,432			7,686
Depreciation expense	6,260			6,312			5,796
Severance expense	53			(65		)	4,153
Transaction (acquisition/disposition) costs	3,772			1,329			6,669
Contingent consideration write-down	—			(5,598		)	(4,335		)
Other general unallocated corporate expenses	9,082			1,179			4,483
Total unallocated corporate overhead costs	$	71,225		$	56,938		$	73,250

Other general unallocated corporate expenses consist of various departmental costs including those associated with departments such as senior executives, corporate accounting, legal, tax, human resources, treasury and investor relations.

The following table presents sales and other financial information by geographic regions. Included in the other non-U.S. category below are operations located in China, Korea, Australia, and India. Sales to unaffiliated clients represent net sales originating in entities physically located in the identified geographic area. Long-lived assets include property, plant and equipment and other long-lived assets.



	U.S		Europe		Canada		Japan		Other Non-U.S.		Consolidated
2012
Sales to unaffiliated clients	$	534,817	$	341,550	$	160,004	$	77,707	$	15,452	$	1,129,530
Long lived assets	476,927		122,351		124,302		39,642		2,457		765,679
2011
Sales to unaffiliated clients	$	545,185	$	348,455	$	158,997	$	75,992	$	14,018	$	1,142,647
Long lived assets	497,197		123,634		127,531		45,857		1,470		795,689
2010
Sales to unaffiliated clients	$	535,790	$	327,492	$	181,028	$	73,852	$	15,254	$	1,133,416
Long lived assets	507,089		124,428		136,846		44,818		1,798		814,979

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

+ Details

Discontinued Operations

12 Months Ended

Dec. 29, 2012

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

On March 28, 2011, we disposed of our Phase I clinical business for a nominal amount. As part of the disposition we remained the guarantor of the Phase I facility lease. During the second quarter of 2011, we recognized the value of the guarantee net of the buyer's related indemnity as a liability of $2,994, which we are amortizing ratably over the remaining term of the lease. The facility lease runs through January 2021 with remaining lease payments totaling $13,272 as of December 29, 2012.

During the period ended December 29, 2012, we concluded that the decreasing financial viability of the lessee increased the probability that we will be required to make future lease payments as guarantor. As a result, we recorded an additional contingent loss of $7,158 for the guarantee, reflecting our estimate of the total future lease payments less sublease income. Under the terms of the lease, if we are required to honor the guarantee due to default by the lessee, we may obtain control of the leased property. The total carrying amount of the liability for our obligation under the guarantee is $9,679 as of December 29, 2012 and is reflected on the consolidated balance sheet a liability of discontinued operations.

The consolidated financial statements have been reclassified to segregate, as discontinued operations, the assets and liabilities, operating results and cash flows, of the businesses being discontinued for all periods presented. Operating results from discontinued operations are as follows:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Net sales	$	—		$	2,112		$	17,508
Asset impairment	—			—			6,402
Income (loss) from operations of discontinued businesses, before income taxes	(6,986		)	(8,964		)	(13,465		)
Provision (benefit) for income taxes	(2,734		)	(3,419		)	(5,453		)
Income (loss) from operations of discontinued businesses, net of taxes	$	(4,252	)	$	(5,545	)	$	(8,012	)

Assets and liabilities of discontinued operations at December 2012 and December 2011 consisted of the following:



	December 29, 2012		December 31, 2011
Current assets	$	495	$	107
Long-term assets	3,328		986
Total assets	$	3,823	$	1,093
Current liabilities	$	1,802	$	1,165
Long-term liabilities	8,795		2,522
Total liabilities	$	10,597	$	3,687

Current assets include a current deferred tax asset. Non-current assets include a long-term deferred tax asset. Current and long-term liabilities consist of a lease guarantee.

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43-48
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1510-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1474-107760

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6390789&loc=d3e2443-110228

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

+ Details

Description of Business and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 29, 2012

Description of Business and Summary of Significant Accounting Policies [Abstract]

Principles of Consolidation

The consolidated financial statements include all majority-owned subsidiaries. Intercompany accounts, transactions and profits are eliminated.

Reclassifications

Certain reclassifications have been made to prior year statements to conform to the current year presentation. These reclassifications have no impact on period reported net income or cash flow.

Use of Estimates

Cash and Cash Equivalents

Cash equivalents include time deposits and highly liquid investments with original maturities at the purchase date of three months or less.

Trade Receivables

Concentration of Credit Risk

Concentrations of Credit Risk

Marketable Securities

Inventories

Property, Plant and Equipment

Valuation and Impairment of Goodiwll and Other Intangible Assets

Valuation and Impairment of Goodwill and Indefinite-Lived Intangible Assets

Valuation and Impairment of Long-Lived Assets


•	significant underperformance relative to expected historical or projected future operating results;


•	significant negative industry or economic trends; or


•	significant changes or developments in strategy or operations that negatively affect the utilization of our long-lived assets.

Accounting for Investment in Life Insurance Contracts

Restructuring and Contract Termination Costs

Stock-Based Compensation Plans

Revenue Recognition

Guarantees

Derivatives and Hedging Activities

Fair Value

Descriptions of the valuation methodologies used for assets and liabilities measured at fair value are as follows:


•	Time deposits—Valued at their ending balances as reported by the financial institutions that hold our securities, which approximates fair value.


•	Auction rate securities—Valued at fair value by management in part utilizing an independent valuation reviewed by management which used pricing models and discounted cash flow methodologies incorporating assumptions that reflect the assumptions a marketplace participant would use.


•	Life policies—Valued at cash surrender value based on fair value of underlying investments.


•	Long-lived assets impaired during the period - valued at fair value at the date of the impairment based upon the income approach.


•	Contingent consideration—Consists of future acquisition-related payments based on certain agreed upon revenue and technical milestones valued using the income approach.


•	Long-Term debt - disclosed fair value based on current market pricing for similar debt.


•	Hedge contract—Valued at fair value by management based on our foreign exchange rates and forward points provided by banks.

Income Taxes

Foreign Currency Translation

Other Comprehensive Income

Pension Plans

Earnings (Loss) Per Share

Discontinued Operations

Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2012

Description of Business and Summary of Significant Accounting Policies [Abstract]

Composition of Trade Receivables

The composition of net trade receivables is as follows:



	December 29, 2012			December 31, 2011
Client receivables	$	174,774		$	159,381
Unbilled revenue	32,494			29,446
Total	207,268			188,827
Less allowance for doubtful accounts	(4,267		)	(4,017		)
Net trade receivables	$	203,001		$	184,810

Schedule of Marketable Securities by Major Security Type

The amortized cost, gross unrealized gains, gross unrealized losses and fair value for marketable securities by major security type were as follows:



	December 29, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Time deposits	$	6,781	$	—	$	—	$	6,781
Auction rate securities	—		—		—		—
	$	6,781	$	—	$	—	$	6,781



	December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Time deposits	$	5,359	$	—	$	—		$	5,359
Auction rate securities	11,972		—		(921		)	11,051
	$	17,331	$	—	$	(921	)	$	16,410

Schedule of Maturities of Debt Securities

Maturities of debt securities were as follows:



	December 29, 2012				December 31, 2011
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due less than one year	$	6,781	$	6,781	$	5,359	$	5,359
Due after one year through five years	—		—		—		—
Due after ten years	—		—		11,972		11,051
	$	6,781	$	6,781	$	17,331	$	16,410

Composition of Inventories

The composition of inventories is as follows:



	December 29, 2012		December 31, 2011
Raw materials and supplies	$	14,525	$	13,987
Work in process	11,082		13,533
Finished products	62,863		65,449
Inventories	$	88,470	$	92,969

Composition of Other Current Assets

Other current assets consist of assets we intend to settle within the next twelve months.



	December 29, 2012		December 31, 2011
Prepaid assets	$	20,404	$	22,828
Deferred tax asset	30,018		30,894
Marketable securities	6,781		5,359
Prepaid income tax	26,169		19,742
Restricted cash	229		229
Other current assets	$	83,601	$	79,052

Composition of Net Property, Plant and Equipment

The composition of net property, plant and equipment is as follows:



	December 29, 2012			December 31, 2011
Land	$	40,812		$	40,517
Buildings	697,547			696,275
Machinery and equipment	356,960			332,683
Leasehold improvements	34,916			29,975
Furniture and fixtures	25,681			26,775
Vehicles	3,736			5,226
Computer hardware and software	107,171			105,563
Construction in progress	46,186			57,661
Total	1,313,009			1,294,675
Less accumulated depreciation	(595,989		)	(556,645		)
Net property, plant and equipment	$	717,020		$	738,030

Composition of Other Assets

The composition of other assets is as follows:



	December 29, 2012		December 31, 2011
Deferred financing costs	$	6,424	$	9,239
Cash surrender value of life insurance policies	25,240		25,057
Long term marketable securities	—		11,051
Equity-method affiliates	8,492		5,737
Other assets	8,503		6,575
Other assets, noncurrent	$	48,659	$	57,659

Schedule of Restructuring and Contract Termination Costs

The following table rolls forward our severance and retention cost liability:



	Severance and Retention Costs
	2012			2011			2010
Balance, beginning of period	$	3,374		$	10,658		$	4,332
Expense	2,576			5,462			16,504
Payments/utilization	(2,314		)	(12,746		)	(10,178		)
Balance, end of period	$	3,636		$	3,374		$	10,658

The following table presents severance and retention costs by classification on the income statement:



	Fiscal Year Ended
	2012		2011		2010
Severance charges included in cost of sales	$	1,203	$	1,012	$	10,860
Severance charges included in selling, general and administrative expense	1,373		4,450		5,644
Total expense	$	2,576	$	5,462	$	16,504

The following table presents severance and retention cost by segment:



	Fiscal Year Ended
	2012		2011			2010
Research models and services	$	1,068	$	1,196		$	4,429
Preclinical services	1,508		4,372			9,145
Corporate	—		(106		)	2,930
Total expense	$	2,576	$	5,462		$	16,504

Composition of Other Current Liabilities

The composition of other current liabilities is as follows:



	December 29, 2012		December 31, 2011
Accrued income taxes	$	18,216	$	10,552
Current deferred tax liability	410		1,379
Accrued interest and other	2,636		2,102
Other current liabilities	$	21,262	$	14,033

Composition of Other Long-Term Liabilities

The composition of other long-term liabilities is as follows:



	December 29, 2012		December 31, 2011
Deferred tax liability	$	13,147	$	16,074
Long-term pension liability	44,316		49,223
Accrued Executive Supplemental Life Insurance Retirement Plan and Deferred Compensation Plan	26,663		25,739
Other long-term liabilities	20,840		17,415
Other long-term liabilities	$	104,966	$	108,451

Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets measured at fair value on a recurring basis are summarized below:



	Fair Value Measurements at December 29, 2012 using
	Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Unobservable Inputs Level 3		Assets and Liabilities at Fair Value
Time deposits	$	—	$	6,781	$	—	$	6,781
Life policies	—		19,555		—		19,555
Hedge contract	—		16		—		16
Total assets measured at fair value	$	—	$	26,352	$	—	$	26,352



	Fair Value Measurements at December 31, 2011 using
	Quoted Prices in Active Markets for Identical Assets Level 1		Significant Other Observable Inputs Level 2		Significant Unobservable Inputs Level 3		Assets and Liabilities at Fair Value
Time deposits	$	—	$	5,359	$	—	$	5,359
Auction rate securities	—		—		11,051		11,051
Life policies	—		19,520		—		19,520
Hedge contract	—		5		—		5
Total assets measured at fair value	$	—	$	24,884	$	11,051	$	35,935

Reconcilliation of Assets and Liabilities Measured at Fair Value on Recurring Basis (Level 3)



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year ended
Auction rate securities	December 29, 2012			December 31, 2011
Beginning balance	$	11,051		$	11,377
Transfers in and/or out of Level 3	—			—
Total gains or losses (realized/unrealized):
Included in earnings (other expenses)	(712		)	(1		)
Included in other comprehensive income	921			(325		)
Purchases, issuances and settlements	(11,260		)	—
Ending balance	$	—		$	11,051



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year ended
Contingent Consideration	December 29, 2012		December 31, 2011
Beginning balance	$	—	$	5,365
Transfers in and/or out of Level 3	—		—
Total gains or losses (realized/unrealized):
Included in selling, general and administrative expense	—		(5,365		)
Included in other comprehensive income	—		—
Purchases, issuances and settlements	—		—
Ending balance	$	—	$	—

Business Acquisitions (Tables)

12 Months Ended

Dec. 29, 2012

Business Acquisitions [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The purchase price allocation, net of $1,547 of cash acquired is as follows:



Current assets (excluding cash)	$	2,162
Property, plant and equipment	549
Current liabilities	(911		)
Long term liabilities	(3,700		)
Definite-lived intangible assets	8,400
Goodwill	10,361
Total purchase price allocation	$	16,861

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

The definite-lived intangible assets acquired are as follows:



			Weighted average amortization life (in years)
Client relationships	$	1,500	13
Proprietary database	4,100		11
Standard operating procedures	2,500		4
Trademarks	300		12
	$	8,400

- Definition

Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1392-128463

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1486-128463

+ Details

Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets by major class

The following table displays the gross carrying amount and accumulated amortization of definite-lived intangible assets by major class:



	December 29, 2012					December 31, 2011
	Gross carrying amount		Accumulated amortization			Gross carrying amount		Accumulated amortization
Backlog	$	2,875	$	(2,375	)	$	2,856	$	(2,253	)
Client relationships	305,178		(231,902		)	298,813		(210,816		)
Client contracts	15,366		(15,366		)	14,818		(14,818		)
Trademarks and trade names	5,326		(4,821		)	5,022		(4,706		)
Standard operating procedures	2,751		(863		)	650		(650		)
Other identifiable intangible assets	10,033		(4,718		)	5,415		(4,332		)
Total finite-lived intangible assets	$	341,529	$	(260,045	)	$	327,574	$	(237,575	)

Schedule of changes in the gross carrying amount and accumulated amortization of goodwill

The following is a schedule of goodwill by reportable segment and changes in the gross carrying amount and accumulated amortization of goodwill:



				Adjustments to Goodwill								Adjustments to Goodwill
	Balance at December 25, 2010			Acquisitions		Foreign Exchange/ Impairment			Balance at December 31, 2011			Acquisitions		Foreign Exchange/ Impairment		Balance at December 29, 2012
Research Models and Services
Gross carrying amount	$	53,108		$	—	$	(427	)	$	52,681		$	10,361	$	97	$	63,139
Preclinical Services
Gross carrying amount	1,150,330			—		(450		)	1,149,880			—		590		1,150,470
Accumulated impairment loss	(1,005,000		)			—			(1,005,000		)			—		(1,005,000		)
Total
Gross carrying amount	$	1,203,438		$	—	$	(877	)	$	1,202,561		$	10,361	$	687	$	1,213,609
Accumulated impairment loss	(1,005,000		)			—			(1,005,000		)			—		(1,005,000		)
Goodwill, net	$	198,438							$	197,561						$	208,609

Schedule of estimated amortization expense

Estimated amortization expense for each of the next five fiscal years is expected to be as follows:



2013	$	14,369
2014	12,447
2015	11,095
2016	9,986
2017	8,987

- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

+ References + Details

Long-Term Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 29, 2012

Debt Disclosure [Abstract]

Components of long-term debt

Long-term debt consists of the following:



	December 29, 2012			December 31, 2011
2.25% Senior convertible debentures:
Principal	$	349,995		$	349,995
Unamortized debt discount	(6,726		)	(21,533		)
Net carrying amount of senior convertible debentures	343,269			328,462
Term loan facilities	290,947			356,322
Revolving credit facility	32,000			33,000
Other long-term debt	232			118
Total debt	666,448			717,902
Less: current portion of long-term debt	(139,373		)	(14,732		)
Long-term debt	$	527,075		$	703,170

Schedule of principal maturities of existing debt excluding unamortized debt discount

Minimum future principal payments of long-term debt at December 29, 2012 are as follows:



Fiscal Year
2013	$	141,391
2014	44,963
2015	59,950
2016	426,870
Thereafter	—
Total	$	673,174

Equity (Tables)

12 Months Ended

Dec. 29, 2012

Stockholders' Equity Note [Abstract]

Reconciliation of the numerator and denominator in the computations of the basic and diluted earnings per share

The following table illustrates the reconciliation of the numerator and denominator in the computations of the basic and diluted earnings per share:



	December 29, 2012			December 31, 2011			December 25, 2010
Numerator:
Income (loss) from continuing operations for purposes of calculating earnings per share	$	101,547		$	115,111		$	(328,657	)
Income (loss) from discontinued businesses	$	(4,252	)	$	(5,545	)	$	(8,012	)
Denominator:
Weighted-average shares outstanding—Basic	47,912,135			50,823,063			62,561,294
Effect of dilutive securities:
2.25% senior convertible debentures	—			—			—
Stock options and contingently issued restricted stock	494,185			495,179			—
Warrants	—			—			—
Weighted-average shares outstanding—Diluted	48,406,320			51,318,242			62,561,294
Basic earnings (loss) per share from continuing operations attributable to common shareowners	$	2.12		$	2.26		$	(5.25	)
Basic earnings (loss) per share from discontinued operations attributable to common shareowners	$	(0.09	)	$	(0.11	)	$	(0.13	)
Diluted earnings (loss) per share from continuing operations attributable to common shareowners	$	2.10		$	2.24		$	(5.25	)
Diluted earnings (loss) per share from discontinued operations attributable to common shareowners	$	(0.09	)	$	(0.11	)	$	(0.13	)

Schedule of number of shares repurchased and the total cost of repurchase

Share repurchases through ASR programs and open market purchases during 2012, 2011 and 2010 were as follows:



	Fiscal Year Ended
	December 29, 2012		December 31, 2011		December 25, 2010
Number of shares of common stock repurchased	1,705,521		8,428,494		9,759,857
Total cost of repurchase	$	61,442	$	299,479	$	294,534

Schedule of composition of accumulated other comprehensive income

The composition of accumulated other comprehensive income is as follows:



	Foreign Currency Translation Adjustment			Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs			Net Unrealized Gain on Marketable Securities			Accumulated Other Comprehensive Income
Balance at December 25, 2010	$	51,834		$	(17,603	)	$	(596	)	$	33,635
Period change	(12,329		)	(22,660		)	(325		)	(35,314		)
Tax	(820		)	7,092			—			6,272
Balance at December 31, 2011	$	38,685		$	(33,171	)	$	(921	)	$	4,593
Period change	5,274			(5,862		)	921			333
Tax	98			1,579			—			1,677
Balance at December 29, 2012	$	44,057		$	(37,454	)	$	—		$	6,603

Income Taxes (Tables)

12 Months Ended

Dec. 29, 2012

Income Tax Disclosure [Abstract]

Analysis of the components of income (loss) from continuing operations before income taxes and the related provision for income taxes

An analysis of the components of income (loss) from continuing operations before income taxes and the related provision for income taxes is presented below:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Income (loss) from continuing operations before income taxes
U.S.	$	35,504		$	47,158		$	(149,275	)
Non-U.S.	94,242			85,504			(184,807		)
	$	129,746		$	132,662		$	(334,082	)
Income tax provision
Current:
Federal	$	(1,447	)	$	3,957		$	11,378
Foreign	26,411			20,727			23,782
State and local	1,353			1,124			2,416
Total current	$	26,317		$	25,808		$	37,576
Deferred:
Federal	$	13,132		$	2,961		$	(24,604	)
Foreign	(12,683		)	(11,649		)	(9,696		)
State and local	862			20			(3,253		)
Total deferred	$	1,311		$	(8,668	)	$	(37,553	)
	$	27,628		$	17,140		$	23

Schedule of net deferred taxes



	December 29, 2012			December 31, 2011
Compensation	$	52,664		$	49,178
Accruals and reserves	5,827			3,712
Financing related	2,545			3,193
Goodwill and other intangibles	(14,982		)	(6,523		)
Net operating loss and credit carryforwards	55,480			57,193
Depreciation related	(37,624		)	(34,389		)
Non-indefinitely reinvested earnings	(146		)	(146		)
Other	(1,245		)	(1,795		)
	62,519			70,423
Valuation allowance	(7,504		)	(12,178		)
Total deferred taxes	$	55,015		$	58,245

Reconciliation of statutory U.S. Federal income tax rate to effective tax rates

Reconciliations of the statutory U.S. Federal income tax rate to effective tax rates are as follows:



	December 29, 2012		December 31, 2011		December 25, 2010
U.S. statutory income tax rate	35.0	%	35.0	%	(35.0	)%
Foreign tax rate differences	(8.0	)%	(6.7	)%	(1.3	)%
State income taxes, net of Federal tax benefit	1.5	%	2.1	%	(0.7	)%
Unbenefitted losses and changes in valuation allowance	0.8	%	0.6	%	0.6	%
Impact of repatriation of non-U.S.earnings	—	%	0.5	%	4.6	%
Research tax credits and enhanced deductions	(8.2	)%	(7.6	)%	(3.6	)%
Enacted tax rate changes	(0.2	)%	(1.0	)%	—	%
Impact of tax uncertainties	(1.2	)%	(1.0	)%	3.1	%
Impact of goodwill and other impairments	—	%	—	%	31.3	%
Releasing valuation allowance on loss from disposition of the Phase 1 Clinical business	—	%	(8.4	)%	—	%
Non taxable gain from settlement of life insurance policy	—	%	(2.2	)%	—	%
Other	1.6	%	1.6	%	1.0	%
	21.3	%	12.9	%	—	%

Reconciliation of unrecognized income tax benefits

A reconciliation of our beginning and ending unrecognized income tax benefits is as follows:



	December 29, 2012			December 31, 2011			December 25, 2010
Beginning balance	$	27,976		$	33,427		$	21,389
Additions:
Tax positions for current year	1,907			1,714			13,142
Tax positions for prior years	4,196			—			693
Reductions:
Tax positions for current year	—			—			—
Tax positions for prior years	(28		)	(239		)	(1,797		)
Settlements	(3,055		)	(6,926		)	—
Expiration of statute of limitations	—			—			—
Ending balance	$	30,996		$	27,976		$	33,427

Employee Benefits (Tables)

12 Months Ended

Dec. 29, 2012

Employee benefits

Schedule of obligations and funded status

Obligations and Funded Status:



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012			2011
Change in benefit obligations
Benefit obligation at beginning of year	$	251,916		$	228,810		$	26,456		$	30,572
Service cost	3,729			3,056			640			636
Interest cost	11,289			12,107			892			1,201
Plan participants' contributions	53			574			—			—
Curtailment	—			—			—			—
Settlements	—			(158		)	—			(5,113		)
Benefit payments	(6,186		)	(6,664		)	(743		)	(764		)
Actuarial loss (gain)	16,699			13,319			127			(76		)
Plan amendments	—			53			—			—
Administrative expenses paid	(266		)	(272		)	—			—
Effect of foreign exchange	5,829			1,091			—			—
Benefit obligation at end of year	$	283,063		$	251,916		$	27,372		$	26,456
Change in plan assets
Fair value of plan assets at beginning of year	$	202,652		$	192,429		$	—		$	—
Plan assets assumed	—			—			—			—
Actual return on plan assets	22,467			3,661			—			—
Settlements	—			(158		)	—			(5,113		)
Employer contributions	14,222			12,170			743			5,877
Plan participants' contributions	53			574			—			—
Benefit payments	(6,186		)	(6,664		)	(743		)	(764		)
Premiums paid	(266		)	(272		)	—			—
Other	—			—			—			—
Effect of foreign exchange	5,730			912			—			—
Fair value of plan assets at end of year	$	238,672		$	202,652		$	—		$	—
Funded status
Projected benefit obligation	$	283,063		$	251,916		$	27,372		$	26,456
Fair value of plan assets	238,672			202,652			—			—
Net balance sheet liability	$	44,391		$	49,264		$	27,372		$	26,456
Classification of net balance sheet liability
Non-current assets	$	—		$	11		$	—		$	—
Current liabilities	75			52			709			717
Non-current liabilities	44,316			49,223			26,663			25,739

Schedule of amounts recognized as part of accumulated other comprehensive income

Amounts recognized in statement of financial position as part of accumulated other comprehensive income ("AOCI"):



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012		2011
Net actuarial loss	$	58,594		$	52,384		$	3,056	$	3,190
Net prior service cost/(credit)	(6,815		)	(7,117		)	1,320		1,981
Total	$	51,779		$	45,267		$	4,376	$	5,171
The accumulated benefit obligation for all defined benefit plans	$	275,162		$	245,705		$	26,495	$	24,663

Schedule of defined benefit plans with accumulated benefit obligation in excess of plan assets

Information for defined benefit plans with accumulated benefit obligation in excess of plan assets:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Projected benefit obligation	$	277,187	$	247,232	$	27,372	$	26,457
Accumulated benefit obligation	271,204		242,467		26,495		24,663
Fair value of plan assets	233,182		198,689		—		—

Schedule of defined benefit plans with projected benefit obligations in excess of plan assets

Information for defined benefit plans with projected benefit obligation in excess of plan assets:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Projected benefit obligation	$	283,063	$	251,723	$	27,372	$	26,457
Accumulated benefit obligation	275,162		245,574		26,495		24,663
Fair value of plan assets	238,672		202,448		—		—

Schedule of amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year

Amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year:



	Pension Benefits			Supplemental Retirement Benefits
Amortization of net actuarial (gain)/loss	$	2,764		$	249
Amortization of net prior service cost/(credit)	(622		)	660

Components of net periodic benefit cost for defined benefit plans

Components of net periodic benefit cost:



	Pension Benefits									Supplemental Retirement Benefits
	2012			2011			2010			2012		2011			2010
Service cost	$	3,729		$	3,056		$	2,617		$	640	$	636		$	597
Interest cost	11,289			12,107			11,214			892		1,201			1,341
Expected return on plan assets	(13,799		)	(13,677		)	(12,185		)	—		—			—
Amortization of prior service cost (credit)	2,461			(617		)	(598		)	260		498			498
Amortization of net loss (gain)	(609		)	978			749			660		210			155
Net periodic benefit cost	3,071			1,847			1,797			2,452		2,545			2,591
Settlement	—			23			27			—		(487		)	—
Net pension cost	$	3,071		$	1,870		$	1,824		$	2,452	$	2,058		$	2,591

Schedule of rollforward of accumulated other comprehensive income

Rollforward of accumulated other comprehensive income:



	Pension Benefits						Supplemental Retirement Benefits
	2012			2011			2012			2011
Beginning balance	$	45,267		$	22,311		$	5,171		$	5,467
Amortization of prior service cost	(2,461		)	617			(660		)	(497		)
Amortization of net gain (loss)	609			(978		)	(260		)	(210		)
Asset loss/(gain)	8,030			10,016			125			—
Liability loss/(gain)	—			13,319			—			(76		)
Recognized prior service (cost) credit due to curtailment	—			53			—			—
Recognized (loss)/gain due to settlement	—			(23		)	—			487
Currency impact	334			(48		)	—			—
Ending balance	$	51,779		$	45,267		$	4,376		$	5,171

Schedule of weighted-average assumptions

Weighted-average assumptions used to determine benefit obligations:



	Pension Benefits				Supplemental Retirement Benefits
	2012		2011		2012		2011
Discount rate	4.13	%	4.47	%	2.63	%	3.42	%
Rate of compensation increase	3.04	%	3.12	%	2.50	%	2.50	%

Weighted-average assumptions used to determine net periodic benefit cost:



	Pension Benefits						Supplemental Retirement Benefits
	2012		2011		2010		2012		2011		2010
Discount rate	4.47	%	5.20	%	5.63	%	3.42	%	4.34	%	5.22	%
Expected long-term return on plan assets	6.55	%	6.79	%	7.11	%	—		—		—
Rate of compensation increase	3.12	%	3.48	%	2.50	%	2.50	%	2.50	%	2.50	%

Schedule of plan asset allocations

Our pension plans' weighted-average asset allocations are as follows:



	Target Allocation		Pension Benefits
	2013		2012		2011
Equity securities	67	%	60	%	59	%
Fixed income	31	%	36	%	37	%
Other	2	%	4	%	4	%
Total	100	%	100	%	100	%

Defined Benefit Plan, Additional Disclosures about Plan Assets

The fair value of our pension assets by asset category are as follows. Fair Value Measurements at December 29, 2012AssetsQuoted Prices inActive Marketsfor IdenticalAssetsLevel 1 Significant OtherObservableInputsLevel 2 SignificantUnobservableInputsLevel 3 Assets atFair ValueCash$1,336 $— $— $1,336Common stock(a)100,864 4,261 — 105,125Debt securities(a)63,283 3,169 — 66,452Mutual funds(b)55,453 8,551 — 64,004Life insurance policies(c)— 43 — 43Other (d)224 — 1,488 1,712Total$221,160 $16,024 $1,488 $238,672(a)This category comprises investments valued at the closing price reported on the active market on which the individual securities are traded.(b)This category comprises mutual funds valued at the net asset value of shares held at year end.(c)This category comprises life insurance policies valued at cash surrender value at year end.(d)This comprises annuity policies held with various insurance companies valued at face value.

Schedule of Level 3 plan asset rollforward



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance at December 31, 2011	$	1,419
Actual return on plan assets:
Relating to assets still held at December 29, 2012	51
Relating to assets sold during the period
Purchases, sales and settlements	(78		)
Transfers in and/or out of Level 3	96
Balance at December 29, 2012	$	1,488

Schedule of estimated future benefit payments

Estimated future benefit payments:



	Pension Benefits		Supplemental Retirement Benefits
2013	$	7,180	$	721
2014	6,773		800
2015	7,559		745
2016	8,591		12,379
2017	8,657		721
2018-2022	$	54,207	$	8,811

Stock Plans and Stock Based Compensation (Tables)

12 Months Ended

Dec. 29, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of stock-based compensation expense

The following table presents stock-based compensation included in our consolidated statement of income:



	December 29, 2012			December 31, 2011			December 25, 2010
Stock-based compensation expense in:
Cost of sales	$	5,470		$	5,983		$	7,186
Selling and administration	16,385			15,723			18,340
Income from continuing operations, before income taxes	21,855			21,706			25,526
Provision for income taxes	(7,793		)	(7,784		)	(9,179		)
Net income attributable to common shareowners	$	14,062		$	13,922		$	16,347

Schedule of weighted-average assumptions

The fair value of stock-based awards granted during 2012, 2011 and 2010 was estimated on the grant date using the Black-Scholes option-pricing model with the following weighted-average assumptions:



	December 29, 2012			December 31, 2011			December 25, 2010
Expected life (in years)	4.5			4.2			4.5
Expected volatility	35		%	33		%	34		%
Risk-free interest rate	0.84		%	2.21		%	2.35		%
Expected dividend yield	0		%	0		%	0		%
Weighted—average grant date fair value	$	10.94		$	11.32		$	11.96

Summary of stock option activity in equity incentive plans

The following table summarizes stock option activities under our plans:



	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding as of December 31, 2011	6,081,263		$	38.25
Options granted	590,675		$	36.09
Options exercised	(650,255	)	$	28.34
Options canceled	(161,280	)	$	39.00
Options outstanding as of December 29, 2012	5,860,403		$	39.11
Options exercisable as of December 29, 2012	3,871,131		$	41.27	2.25 years	$	7,600

Summary of significant ranges of outstanding and exercisable options

The following table summarizes significant ranges of outstanding and exercisable options as of December 29, 2012:



	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life (In years)	Weighted Average Exercise Price		Aggregate Intrinsic Value		Options Exercisable	Weighted Average Remaining Contractual Life (In years)	Weighted Average Exercise Price		Aggregate Intrinsic Value
$20.01–$30.00	844,220	3.12	25.30		9,775,196		519,445	3.08	25.59		5,864,633
$30.01–$40.00	3,097,578	3.97	36.62		2,334,531		1,436,354	2.53	36.35		1,734,878
$40.01–$50.00	1,383,030	1.71	45.64		—		1,379,757	1.70	45.66		—
$50.01–$60.00	487,255	2.10	57.99		—		487,255	2.10	57.99		—
$60.01–$70.00	48,320	2.30	62.56		—		48,320	2.30	62.56		—
Totals	5,860,403	3.14	$	39.11	$	12,109,727	3,871,131	2.25	$	41.27	$	7,599,511

Summary of non-vested stock option activity

The following table summarizes the non-vested stock option activity in the equity incentive plans for the fiscal year ending December 29, 2012:



	Non-vested Stock Options		Weighted Average Exercise Price
December 31, 2011	2,487,889		$	34.89
Granted	590,675		36.09
Forfeited	(47,846	)	35.08
Vested	(1,040,996	)	35.53
December 29, 2012	1,989,722		$	34.91

Summary of restricted stock activity

The following table summarizes the restricted stock activity for 2012:



	Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2011	703,011		$	35.70
Granted	541,820		36.10
Vested	(288,549	)	35.99
Canceled	(21,777	)	43.16
Outstanding as of December 29, 2012	934,505		$	35.83

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 29, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum payments under noncancellable operating leases

Future minimum payments by year and in the aggregate, under noncancellable operating leases with initial or remaining terms of one year or more, consist of the following at December 29, 2012:



2013	$	15,440
2014	12,749
2015	8,953
2016	7,196
2017	5,889
Thereafter	14,257

Business Segment and Geographic Information (Tables)

12 Months Ended

Dec. 29, 2012

Segment Reporting [Abstract]

Schedule of sales and other financial information by business segment



	2012		2011		2010
Research Models and Services
Net sales	$	695,083	$	705,419	$	666,986
Gross margin	289,750		297,327		278,391
Operating income	202,362		206,319		184,464
Total assets	698,134		687,346		711,824
Long-lived assets	272,559		282,388		277,193
Depreciation and amortization	37,541		37,240		37,657
Capital expenditures	36,856		34,257		27,694
Preclinical Services
Net sales	$	434,447	$	437,228	$	466,430
Gross margin	102,331		104,915		106,369
Operating income	34,628		24,925		(379,726		)
Total assets	888,210		869,881		1,016,864
Long-lived assets	493,120		513,302		537,786
Depreciation and amortization	43,734		47,990		55,992
Capital expenditures	10,678		14,886		15,166

Reconciliation of segment operating income to consolidated operating income

A reconciliation of segment operating income to consolidated operating income is as follows:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Total segment operating income	$	236,990		$	231,244		$	(195,262	)
Unallocated corporate overhead	(71,225		)	(56,938		)	(73,250		)
Termination fee (Note 11)	—			—			(30,000		)
Consolidated operating income	$	165,765		$	174,306		$	(298,512	)

Schedule of net sales for each significant service area

Net sales for each significant service area are as follows:



	Fiscal Year Ended
	December 29, 2012		December 31, 2011		December 25, 2010
Research models	$	381,790	$	401,660	$	386,872
Research model services	219,671		220,698		208,363
EMD	93,622		83,061		71,751
Total research models	695,083		705,419		666,986
Total preclinical services	434,447		437,228		466,430
Total sales	$	1,129,530	$	1,142,647	$	1,133,416

Summary of unallocated corporate overhead

A summary of unallocated corporate overhead consists of the following:



	December 29, 2012			December 31, 2011			December 25, 2010
Stock-based compensation expense	$	11,724		$	11,159		$	11,893
U.S. retirement plans	4,831			3,802			3,921
Audit, tax and related expense	3,019			3,069			2,805
Salary and bonus	19,997			18,486			19,617
Global IT	12,622			11,785			12,793
Employee health, LDP and fringe benefit expense	(4,569		)	(2,952		)	(2,231		)
Consulting and professional services	4,434			8,432			7,686
Depreciation expense	6,260			6,312			5,796
Severance expense	53			(65		)	4,153
Transaction (acquisition/disposition) costs	3,772			1,329			6,669
Contingent consideration write-down	—			(5,598		)	(4,335		)
Other general unallocated corporate expenses	9,082			1,179			4,483
Total unallocated corporate overhead costs	$	71,225		$	56,938		$	73,250

Schedule of sales and other financial information by geographic regions



	U.S		Europe		Canada		Japan		Other Non-U.S.		Consolidated
2012
Sales to unaffiliated clients	$	534,817	$	341,550	$	160,004	$	77,707	$	15,452	$	1,129,530
Long lived assets	476,927		122,351		124,302		39,642		2,457		765,679
2011
Sales to unaffiliated clients	$	545,185	$	348,455	$	158,997	$	75,992	$	14,018	$	1,142,647
Long lived assets	497,197		123,634		127,531		45,857		1,470		795,689
2010
Sales to unaffiliated clients	$	535,790	$	327,492	$	181,028	$	73,852	$	15,254	$	1,133,416
Long lived assets	507,089		124,428		136,846		44,818		1,798		814,979

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Discontinued Operations (Tables)

12 Months Ended

Dec. 29, 2012

Discontinued Operations and Disposal Groups [Abstract]

Schedule of operating results from discontinued operations

Operating results from discontinued operations are as follows:



	Fiscal Year Ended
	December 29, 2012			December 31, 2011			December 25, 2010
Net sales	$	—		$	2,112		$	17,508
Asset impairment	—			—			6,402
Income (loss) from operations of discontinued businesses, before income taxes	(6,986		)	(8,964		)	(13,465		)
Provision (benefit) for income taxes	(2,734		)	(3,419		)	(5,453		)
Income (loss) from operations of discontinued businesses, net of taxes	$	(4,252	)	$	(5,545	)	$	(8,012	)

Schedule of assets and liabilities of discontinued operations

Assets and liabilities of discontinued operations at December 2012 and December 2011 consisted of the following:



	December 29, 2012		December 31, 2011
Current assets	$	495	$	107
Long-term assets	3,328		986
Total assets	$	3,823	$	1,093
Current liabilities	$	1,802	$	1,165
Long-term liabilities	8,795		2,522
Total liabilities	$	10,597	$	3,687

Description of Business and Summary of Significant Accounting Policies (Cash and Cash Equivalents, Trade Receivables and Concentrations of Credit Risk) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) customers	Dec. 31, 2011 USD ($)	Dec. 25, 2010 USD ($)
Concentration Risk [Line Items]
Time deposits and highly liquid investments, maturity period	3
Composition of trade receivables
Client receivables	$ 174,774	$ 159,381
Unbilled revenue	32,494	29,446
Total	207,268	188,827
Less allowance for doubtful accounts	(4,267)	(4,017)
Net trade receivables	203,001	184,810
Provisions to the allowance for doubtful accounts	947	426	$ 1,536
Write offs to the allowance for doubtful accounts	$ 697	$ 1,228	$ 1,541
Client Concentration Risk [Member]
Composition of trade receivables
Number of clients representing large percentage of sales or trade receivables \| customers	0
Max percentage, clients representing large percentage of sales or trade receivables	5.00%

Description of Business and Summary of Significant Accounting Policies (Marketable Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Marketable securities
Proceeds from sale of investments	$ 25,156	$ 31,607	$ 72,464
Fair value, marketable securities	6,781	16,410
Amortized cost, marketable securities	6,781	17,331
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(921)
Fair Value	6,781	16,410
Maturities of debt securities, Amortized Cost
Due less than one year, Amortized Cost	6,781	5,359
Due after one year through five years, Amortized Cost	0	0
Due after ten years, Amortized Cost	0	11,972
Amortized Cost	6,781	17,331
Maturities of debt securities, Fair Value
Due less than one year, Fair Value	6,781	5,359
Due after one year through five years, Fair Value	0	0
Due after ten years, Fair Value	0	11,051
Fair Value	6,781	16,410
Time Deposits [Member]
Marketable securities
Fair value, marketable securities	6,781	5,359
Amortized cost, marketable securities	6,781	5,359
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	6,781	5,359
Maturities of debt securities, Fair Value
Fair Value	6,781	5,359
Auction Rate Securities [Member]
Marketable securities
Fair value, marketable securities	0
Amortized cost, marketable securities	0	11,972
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(921)
Fair Value	0
Maturities of debt securities, Fair Value
Fair Value	0
Auction Rate Securities [Member]
Marketable securities
Proceeds from sale of investments	11,260
Maturities of debt securities, Fair Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	$ (712)	$ (1)

Description of Business and Summary of Significant Accounting Policies (Inventories) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Composition of inventories
Raw materials and supplies	$ 14,525	$ 13,987
Work in process	11,082	13,533
Finished products	62,863	65,449
Inventories	88,470	$ 92,969
Inventory Adjustments	$ 953

Description of Business and Summary of Significant Accounting Policies (Long-lived Assets) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) year	Dec. 31, 2011 USD ($)	Dec. 25, 2010 USD ($)
Property, Plant and Equipment
Capitalized interest	$ 467	$ 298	$ 56
Net property, plant and equipment
Gross property, plant and equipment	1,313,009	1,294,675
Less accumulated depreciation	(595,989)	(556,645)
Net property, plant and equipment	717,020	738,030
Depreciation expense	63,207	63,435	$ 69,244
Land [Member]
Net property, plant and equipment
Gross property, plant and equipment	$ 40,812	40,517
Buildings [Member]
Property, Plant and Equipment
Minimum estimated useful life (in years) \| year	20
Maximum estimated useful life (in years) \| year	40
Net property, plant and equipment
Gross property, plant and equipment	$ 697,547	696,275
Machinery and Equipment [Member]
Property, Plant and Equipment
Minimum estimated useful life (in years) \| year	3
Maximum estimated useful life (in years) \| year	20
Net property, plant and equipment
Gross property, plant and equipment	$ 356,960	332,683
Leashold Improvements [Member]
Net property, plant and equipment
Gross property, plant and equipment	$ 34,916	29,975
Furniture and Fixtures [Member]
Property, Plant and Equipment
Minimum estimated useful life (in years) \| year	5
Maximum estimated useful life (in years) \| year	10
Net property, plant and equipment
Gross property, plant and equipment	$ 25,681	26,775
Vehicles [Member]
Property, Plant and Equipment
Minimum estimated useful life (in years) \| year	3
Maximum estimated useful life (in years) \| year	5
Net property, plant and equipment
Gross property, plant and equipment	$ 3,736	5,226
Computer Hardware and Software [Member]
Property, Plant and Equipment
Minimum estimated useful life (in years) \| year	3
Maximum estimated useful life (in years) \| year	8
Net property, plant and equipment
Gross property, plant and equipment	$ 107,171	105,563
Construction in Progress [Member]
Net property, plant and equipment
Gross property, plant and equipment	$ 46,186	$ 57,661

Description of Business and Summary of Significant Accounting Policies (Equity Method Affiliates) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Schedule of Equity Method Investments [Line Items]
Equity Method Affiliates	$ 8,492
Biotechnology and Medical Device Companies [Member]
Schedule of Equity Method Investments [Line Items]
Limited partnership, committed contribution	8,820
Income (loss) from limited partnership	$ (618)	$ 869	$ (579)
Limited partnership, ownership (in percent)	12.00%
Limited partnership, total committed contributions	$ 20,000

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 19
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 6
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.12)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6382870&loc=d3e33749-111570

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 11
-Article 7

+ Details

Description of Business and Summary of Significant Accounting Policies (Restructuring and Contract Termination Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 2,576	$ 5,462	$ 16,504
Severance and Retention Costs
Balance, beginning of period	3,374	10,658	4,332
Expense	2,576	5,462	16,504
Payments/utilization	2,314	12,746	10,178
Balance, end of period	3,636	3,374	10,658
Research Models and Services
Restructuring Cost and Reserve [Line Items]
Severance Costs	1,068	1,196	4,429
Preclinical Services
Restructuring Cost and Reserve [Line Items]
Severance Costs	1,508	4,372	9,145
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	0	(106)	2,930
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	1,203	1,012	10,860
General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	1,373	4,450	$ 5,644
Accrued Compensation [Member]
Restructuring and Contract Termination Costs
Severance and retention costs, current	1,885	1,432
Other Long-Term Liabilities [Member]
Restructuring and Contract Termination Costs
Severance and retention costs, noncurrent	$ 1,751	$ 1,942

Description of Business and Summary of Significant Accounting Policies (Other Current and Long-Term Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Composition of other current assets
Prepaid assets	$ 20,404	$ 22,828
Deferred tax asset	30,018	30,894
Marketable securities	6,781	5,359
Prepaid income tax	26,169	19,742
Restricted cash	229	229
Other current assets	83,601	79,052
Composition of other assets, noncurrent
Deferred financing costs	6,424	9,239
Cash surrender value of life insurance policies	25,240	25,057
Long-term marketable securities	0	11,051
Other assets	8,503	6,575
Other assets, noncurrent	48,659	57,659
Composition of other current liabilities
Accrued income taxes	18,216	10,552
Current deferred tax liability	410	1,379
Accrued intereset and other	2,636	2,102
Other current liabilities	21,262	14,033
Composition of other long-term liabilities
Deferred tax liability	13,147	16,074
Long-term pension liability	44,316	49,223
Accrued Executive Supplemental Life Insurance Retirement Plan and Deferred Compensation Plan	26,663	25,739
Other long-term liabilities	20,840	17,415
Other long-term liabilities	$ 104,966	$ 108,451

Description of Business and Summary of Significant Accounting Policies (Derivatives and Hedging Acitivities) (Details) - Forward Contracts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Derivative [Line Items]
Outstanding forward contract, fair value	$ 16
Hedge gain (loss) recorded	$ (1,260)	$ (6,287)	$ 713

Description of Business and Summary of Significant Accounting Policies (Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 29, 2012	Dec. 29, 2012	Dec. 31, 2011
Assets measured at fair value on a recurring basis
Fair value, marketable securities		$ 6,781	$ 16,410
Reconciliation of all liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Long-term Debt, Fair Value		351,745
Contingent Consideration [Member]
Reconciliation of all liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period		0	5,365
Transfers in and/or out of Level 3		0	0
Total gains or losses (realized/unrealized) Included in selling, general and administrative expense		0	(5,365)
Total gains or losses (realized/unrealized) Included in other comprehensive income		0	0
Purchases, issuances and settlements		0	0
Balance at the end of the period			0
Auction Rate Securities [Member]
Reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period		11,051	11,377
Transfers in and/or out of Level 3		0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		(712)	(1)
Total gains or losses (realized/unrealized) included in other comprehensive income		921	(325)
Total gains or losses (realized/unrealized) included in purchases, issuances and settlements		(11,260)	0
Balance at the end of the period		0	11,051
Time Deposits [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		6,781	5,359
Auction Rate Securities [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		0
Fair Value, Measurements, Nonrecurring [Member] \| Significant Unobservable Inputs Level 3 [Member]
Assets measured at fair value on a recurring basis
Impaired Long-Lived Assets Held and Used, Asset Description	2197
Fair Value, Measurements, Recurring [Member]
Assets measured at fair value on a recurring basis
Life policies		19,555	19,520
Hedge contract		16	5
Assets, Fair Value Disclosure		26,352	35,935
Fair Value, Measurements, Recurring [Member] \| Time Deposits [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		6,781	5,359
Fair Value, Measurements, Recurring [Member] \| Auction Rate Securities [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities			11,051
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Assets measured at fair value on a recurring basis
Life policies		0	0
Hedge contract		0	0
Assets, Fair Value Disclosure		0	0
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Time Deposits [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		0	0
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Auction Rate Securities [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities			0
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs Level 2 [Member]
Assets measured at fair value on a recurring basis
Life policies		19,555	19,520
Hedge contract		16	5
Assets, Fair Value Disclosure		26,352	24,884
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs Level 2 [Member] \| Time Deposits [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		6,781	5,359
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs Level 2 [Member] \| Auction Rate Securities [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities			0
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs Level 3 [Member]
Assets measured at fair value on a recurring basis
Life policies		0	0
Hedge contract		0	0
Assets, Fair Value Disclosure		0	11,051
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs Level 3 [Member] \| Time Deposits [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities		0	0
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs Level 3 [Member] \| Auction Rate Securities [Member]
Assets measured at fair value on a recurring basis
Fair value, marketable securities			$ 11,051
Systems Pathology Company [Member]
Reconciliation of all liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the end of the period		$ 0
Convertible Debt [Member]
Assets measured at fair value on a recurring basis
Interest rate on debt (as a percent)	2.25%	2.25%
Preclinical Services
Assets measured at fair value on a recurring basis
GoodwillCushion		15.00%

Description of Business and Summary of Significant Accounting Policies (Income Taxes and Foreign Currency Translations) (Details) - USD ($)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Income taxes
Earnings of non-U.S. subsidiaries considered indefinitely reinvested	$ 155,087,000
Basline for likelihood of benefit resolution	50.00%
Foreign currency translation
Foreign currency translation exchange gain (loss)	$ (892,000)	$ 6,237,000	$ (1,299,000)
Investments in Foreign Subsidiaries that are Essentially Permanent in Duration [Member]
Income taxes
Earnings of non-U.S. subsidiaries considered indefinitely reinvested	155,087,000
Provision for U.S. income taxes	$ 0

- Definition

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

+ References + Details

Description of Business and Summary of Significant Accounting Policies (Life Insurance Contracts) (Details) $ in Thousands	Dec. 29, 2012 USD ($) contracts
Life Settlement Contracts, Investment Method, Disclosure Items [Line Items]
Life Settlement Contracts, Investment Method, Face Value	$ 85,138
Life Settlement Contracts, Investment Method, Carrying Amount	$ 25,240
Life Settlement Contracts, Investment Method, Number of Contracts \| contracts	36

Business Acquisitions Purchase Price Allocation (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($)
Accugenix [Member]
Business Acquisition [Line Items]
Cash paid in business acquisition	$ 18,408
Cash acquired	1,547
Business Acquisition, Purchase Price Allocation [Abstract]
Current assets (excluding cash)	2,162
Property, plant and equipment	549
Current liabilities	(911)
Long term liabilities	(3,700)
Acquired Finite-lived Intangible Asset, Amount	8,400
Goodwill	10,361
Total purchase price allocation	$ 16,861
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Vital River [Member]
Business Acquisition [Line Items]
Cash paid in business acquisition	$ 26,800
Business Acquisition, Purchase Price Allocation [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired	75.00%

Business Acquisitions Finite-lived intangible assets (Details) - Accugenix [Member] $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) year
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 8,400
Client relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 1,500
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life \| year	13
Databases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 4,100
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life \| year	11
Standard operating procedures
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 2,500
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life \| year	4
Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Amount	$ 300
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life \| year	12

Goodwill and Other Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	$ 341,529	$ 327,574
Finite-lived intangible assets, accumulated amortization	(260,045)	(237,575)
Backlog
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	2,875	2,856
Finite-lived intangible assets, accumulated amortization	(2,375)	(2,253)
Client relationships
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	305,178	298,813
Finite-lived intangible assets, accumulated amortization	(231,902)	(210,816)
Client contracts
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	15,366	14,818
Finite-lived intangible assets, accumulated amortization	(15,366)	(14,818)
Trademarks and trade names
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	5,326	5,022
Finite-lived intangible assets, accumulated amortization	4,821	(4,706)
Standard operating procedures
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	2,751	650
Finite-lived intangible assets, accumulated amortization	(863)	(650)
Other identifiable intangible assets
Finite-lived intangible assets
Finite-lived intangible assets, Gross Carrying Amount	10,033	5,415
Finite-lived intangible assets, accumulated amortization	$ (4,718)	$ (4,332)

Goodwill and Other Intangible Assets (Gross Carrying Amount and Accumulated Amortization of Goodwill) (Details) - USD ($)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Goodwill
Goodwill, Gross	$ 1,213,609,000	$ 1,202,561,000	$ 1,203,438,000
Goodwill, Impaired, Accumulated Impairment Loss	1,005,000,000	1,005,000,000	1,005,000,000
Goodwill, Acquired During Period	10,361,000	0
Goodwill, Other Changes	687,000	(877,000)
Goodwill, Impairment Loss	0	0	(305,000,000)
Goodwill	208,609,000	197,561,000	198,438,000
Research Models and Services
Goodwill
Goodwill, Gross	63,139,000	52,681,000	53,108,000
Goodwill, Acquired During Period	10,361,000	0
Goodwill, Other Changes	97,000	(427,000)
Preclinical Services
Goodwill
Goodwill, Gross	1,150,470,000	1,149,880,000	1,150,330,000
Goodwill, Impaired, Accumulated Impairment Loss			1,005,000,000
Goodwill, Acquired During Period	0	0
Goodwill, Other Changes	590,000	(450,000)
Goodwill, Impairment Loss	$ 0	$ 0
Goodwill, Accumulated Impairment Loss, Translation and Other Adjustments			$ 305,000,000

Goodwill and Other Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 18,068	$ 21,796	$ 24,405
Estimated amortization expense for each of the next five fiscal years
Estimated amortization expense, 2012	14,369
Estimated amortization expense, 2013	12,447
Estimated amortization expense, 2014	11,095
Estimated amortization expense, 2015	9,986
Estimated amortization expense, 2016	$ 8,987

Goodwill and Other Intangible Assets (Indefinite-lived intangible assets) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-lived Intangible Assets	$ 3,438	$ 3,438

Impairment of Long Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Research Models and Services
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets impairment charges		$ 3,548	$ 692
PCS-China [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets impairment charges				$ 17,186
Proceeds from transfer and sale of assets	$ 4,593
Gain from transfer and sale of assets	$ 3,776
Massachusetts [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets impairment charges				64,631
In Process Research And Development [Member] \| Preclinical Services
Impaired Long-Lived Assets Held and Used [Line Items]
Indefinite-lived intangible asset impairment charges			$ 6,800	$ 7,200

Long-Term Debt and Capital Lease Obligations (Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Sep. 29, 2012	Dec. 31, 2011
Debt Instrument
Principal	$ 673,174
Total debt	666,448		$ 717,902
Less: current portion of long-term debt	139,373		(14,732)
Long-term debt	527,075		703,170
Other long-term debt
Debt Instrument
Total debt	232		118
Revolving credit facility
Debt Instrument
Total debt	32,000		33,000
Term loan facilities
Debt Instrument
Total debt	290,947		356,322
Convertible Debt [Member]
Debt Instrument
Principal	349,995		349,995
Unamortized debt discount	(6,726)		(21,533)
Total debt	343,269		$ 328,462
Less: current portion of long-term debt	$ (240,287)
Interest rate on debt (as a percent)	2.25%	2.25%

Long-Term Debt and Capital Lease Obligations (Additional Disclosures) (Details) $ / shares in Units, € in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) denominator numerator shares day months payment quarter	Dec. 31, 2011 USD ($)	Dec. 29, 2012 EUR (€)	Dec. 29, 2012 USD ($) $ / shares	Aug. 26, 2010 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Fair Value				$ 351,745,000
Capital lease obligations		$ 43,000		72,000
Principal maturities of existing debt excluding unamortized debt discount
2013				141,391,000
2014				44,963,000
2015				59,950,000
2016				426,870,000
Thereafter				0
Total				673,174,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Face amount of debt				350,000,000
Initial conversion rate of common stock per $1000 of principal amount of Convertible Notes (in shares) \| shares	20.4337
Principal amount used for debt instrument conversion ratio				$ 1,000
Initial conversion price of convertible notes into common stock (in dollars per share) \| $ / shares				$ 48.94
Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be redeemable \| day	20
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be redeemable \| day	30
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible (as a percent)	130.00%
Number of consecutive business days immediately after any five consecutive trading day period during the note measurement period \| day	5
Number of consecutive trading days before five consecutive business days during the note measurement period \| day	5
Percentage of the trading price to the product of the last reported sale price of the entity's common stock and the conversion rate, maximum (as a percent)	98.00%
Number of months prior to the stated maturity date that the debt instrument is convertible at the option of the holder \| months	2
Percentage of principal amount at which notes may be required to be repurchased in event of fundamental change by the entity (as a percent)	100.00%
Unamortized debt discount		21,533,000		$ 6,726,000
Amortization period of debt discount (in quarters) \| quarter	2
Amount of equity component of convertible debt				$ 88,492,000
Interest expense related to convertible debt	$ 22,682,000	22,012,000
Effective interest rate (as a percent)			6.93%	6.93%
Contractual interest expense recognized on convertible debt	$ 7,875,000	7,962,000
Principal maturities of existing debt excluding unamortized debt discount
Total		$ 349,995,000		$ 349,995,000
Credit agreement
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 750,000,000
Increase in the credit agreement's borrowing capacity available under specified circumstances				$ 250,000,000
Percentage of capital stock of domestic subsidiaries (excluding disregarded entities) pledged as collateral for borrowings (as a percent)			100.00%	100.00%
Line of Credit Facility Collateral Percentage of First Tier Foreign Subsidiaries and Domestic Disregarded Entities Capital Stock			65.00%	65.00%
Minimum book value on owned real property in the U.S. whose mortgages are pledged as collateral for borrowings				$ 10,000,000
Number of consecutive quarters for which ratio of consolidated EBITDA less capital expenditures to consolidated cash interest expense is required to be maintained under financial covenants \| quarter	4
Numerator for ratio of consolidated EBITDA less capital expenditures to consolidated cash interest expense, minimum \| numerator	3.5
Denominator for ratio of consolidated EBITDA less capital expenditures to consolidated cash interest expense, minimum \| denominator	1.0
Number of consecutive quarters for which ratio of consolidated indebtedness to consolidated EBITDA is required to be maintained under financial covenants \| quarter	4
Outstanding under letters of credit				$ 5,030,000
Credit agreement \| Effective After 3rd Quarter 2012 [Member]
Debt Instrument [Line Items]
Numerator for the ratio of consolidated indebtedness to consolidated EBITDA, maximum \| numerator	3.25
Denominator for the ratio of consolidated indebtedness to consolidated EBITDA, maximum \| denominator	1.0
Credit agreement \| Base rate
Debt Instrument [Line Items]
Interest rate margin, low end of range (as a percent)	0.00%
Interest rate margin, high end of range (as a percent)	0.75%
Interest rate margin (as a percent)			0.50%	0.50%
Credit agreement \| Federal funds rate
Debt Instrument [Line Items]
Interest rate margin (as a percent)			0.50%	0.50%
Credit agreement \| One-month adjusted LIBOR rate
Debt Instrument [Line Items]
Interest rate margin (as a percent)			1.00%	1.00%
Credit agreement \| LIBOR
Debt Instrument [Line Items]
Interest rate margin, low end of range (as a percent)	1.00%
Interest rate margin, high end of range (as a percent)	1.75%
Interest rate margin (as a percent)			1.50%	1.50%
Term loan facilities
Debt Instrument [Line Items]
Number of quarterly installment payments \| payment	20
Term loan
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 299,750,000
Euro term loan
Debt Instrument [Line Items]
Maximum borrowing capacity \| €			€ 69,414
Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 350,000,000

Equity (Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Numerator:
Income (loss) from continuing operations for purposes of calculating earnings per share	$ 101,547	$ 115,111	$ (328,657)
Income (loss) from discontinued operations, net of taxes	$ (4,252)	$ (5,545)	$ (8,012)
Denominator:
Weighted average shares outstanding-Basic (in shares)	47,912,135	50,823,063	62,561,294
Effect of dilutive securities:
2.25% senior convertible debentures (in shares)	0	0	0
Stock options and contingently issued restricted stock (in shares)	494,185	495,179	0
Warrants (in shares)	0	0	0
Weighted average shares outstanding-Diluted (in shares)	48,406,320	51,318,242	62,561,294
Basic earnings (loss) per share from continuing operations attributable to common shareowners (in dollars per share)	$ 2.12	$ 2.26	$ (5.25)
Basic earnings (loss) per share from discontinued operations attributable to common shareowners (in dollars per share)	(0.09)	(0.11)	(0.13)
Diluted earnings (loss) per share from continuing operations attributable to common shareowners (in dollars per share)	2.10	2.24	(5.25)
Diluted earnings (loss) per share from discontinued operations attributable to common shareowners (in dollars per share)	$ (0.09)	$ (0.11)	$ (0.13)
Stock options
Antidilutive securities excluded from computation of earnings per share amount
Antidilutive securities excluded from computation of earnings per share amount (in shares)	4,590,925	4,249,564	6,594,313
Effect of dilutive securities:
Weighted average shares outstanding-Diluted (in shares)	5,255	703,011	777,740

Equity (Treasury Stock) (Details) - USD ($) $ in Thousands									10 Months Ended	12 Months Ended
Equity (Treasury Stock) (Details) - USD ($) $ in Thousands	May 16, 2011	Feb. 24, 2011	Dec. 21, 2010	Oct. 20, 2010	Sep. 23, 2010	Aug. 27, 2010	Aug. 26, 2010	Jul. 29, 2010	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Authorized amount of stock repurchase				$ 750,000			$ 300,000	$ 500,000
Change in authorized amount of stock repurchase				$ 250,000
Payments for repurchase of common stock										$ 64,189	$ 283,795	$ 356,527
Number of shares of common stock repurchased (in shares)										1,705,521	8,428,494	1,759,857
Fair market value of treasury shares purchased										$ (64,489)	$ (269,655)	$ (298,172)
Total cost of repurchase of treasury shares										$ 61,442	$ 299,479	$ 52,888
Accelerated stock repurchase program entered into on August 26, 2010
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Payments for repurchase of common stock						$ 300,000
Number of shares of common stock repurchased (in shares)			1,250,000		750,000		6,000,000		871,829		8,000,000
Fair market value of treasury shares purchased			$ 43,069		$ 23,511		$ 175,066		$ 32,509
Accelerated stock repurchase program entered into on February 24, 2011
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Authorized amount of stock repurchase		$ 150,000
Payments for repurchase of common stock		$ 150,000
Number of shares of common stock repurchased (in shares)	6,505	3,759,398
Fair market value of treasury shares purchased	$ 257	$ 135,860
Forward contract indexed to common stock		$ 14,140
Open market repurchases
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Number of shares of common stock repurchased (in shares)										1,705,521	3,790,762	9,759,857
Total cost of repurchase of treasury shares										$ 61,442	$ 130,853	$ 294,534
2000 Incentive Plan and 2007 Incentive Plan
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Number of shares of common stock repurchased (in shares)										84,250	79,704	100,489
Total cost of repurchase of treasury shares										$ 3,047	$ 2,942	$ 3,638
Credit Agreement [Member]
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Maximum borrowing capacity							$ 750,000

Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Stockholders' Equity Note [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Beginning Balance	$ 38,685	$ 51,834
Accumulated Other Comprehensive Income (Loss), Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs, Beginning Balance	33,171	17,603
Accumulated Other Comprehensive Income (Loss), Net Unrealized Gain on Marketable Securities, Beginning Balance	(921)	(596)
Accumulated Other Comprehensive Income (Loss), Beginning Balance	4,593	33,635
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Period Change	5,274	(12,329)
Other Comprehensive Income (Loss), Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs, Period change	(5,862)	(22,660)
Other Comprehensive Income (Loss), Net Unrealized Gain on Marketable Securities, Period change	921	(325)
Other Comprehensive Income (Loss), Period change	333	(35,314)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	98	(820)
Other Comprehensive Income (Loss), Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs, Tax	1,579	7,092
Other Comprehensive Income (Loss), Net Unrealized Gain on Marketable Securities, Tax	0	0
Other Comprehensive Income (Loss), Tax	1,677	6,272
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Ending Balance	44,057	38,685
Accumulated Other Comprehensive Income (Loss), Pension Gains/(Losses) and Prior Service (Cost)/Credit Not Yet Recognized as Components of Net Periodic Benefit Costs, Ending Balance	37,454	33,171
Accumulated Other Comprehensive Income (Loss), Net Unrealized Gain on Marketable Securities, Ending Balance	0	(921)
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ 6,603	$ 4,593

Equity (Warrants) (Details) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Dec. 29, 2012 USD ($) increments $ / shares shares
Class of Warrant or Right [Line Items]
Warrents \| $ / shares	$ 59.63
Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants issued (in shares) \| shares	7.2
Number of equal increments over which the warrants will expire between September 13, 2013 and January 22, 2014 \| increments	90
Proceeds from issuance of warrants \| $	$ 65,423

Equity (Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 25, 2010	Dec. 29, 2012	Dec. 31, 2011	Dec. 24, 2010
Schedule of Equity Method Investments [Line Items]
Interests of the outside joint venture partners in joint ventures		$ 2,395	$ 1,780
PCS-China [Member]
Schedule of Equity Method Investments [Line Items]
Interests of the outside joint venture partners in joint ventures				$ 8,623
Payments to Acquire Interest in Joint Venture	$ 4,000
Business Acquisition, Cost of Acquired Entity, Purchase Price				$ 4,000

Income Taxes (Components of Income (Loss) from Continuing Operations Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Income (loss) from continuing operations before income taxes
U.S.	$ 35,504	$ 47,158	$ (149,275)
Non-U.S.	94,242	85,504	(184,807)
Income (loss) from continuing operations, before income taxes	129,746	132,662	(334,082)
Current:
Federal	(1,447)	3,957	11,378
Foreign	26,411	20,727	23,782
State and local	1,353	1,124	2,416
Total current	26,317	25,808	37,576
Deferred:
Federal	13,132	2,961	(24,604)
Foreign	(12,683)	(11,649)	(9,696)
State and local	862	20	(3,253)
Total deferred	1,311	(8,668)	(37,553)
Provision for income taxes	$ 27,628	$ 17,140	$ 23

Income Taxes (Deferred Taxes and Effective Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Components of Deferred Tax Assets and Liabilities [Abstract]
Compensation	$ 52,664	$ 49,178
Accruals and reserves	5,827	3,712
Financing related	2,545	3,193
Goodwill and other intangibles	(14,982)	(6,523)
Net operating loss and credit carryforwards	55,480	57,193
Depreciation related	(37,624)	(34,389)
Non-indefinitely reinvested earnings	(146)	(146)
Other	(1,245)	(1,795)
Deferred taxes, gross	62,519	70,423
Valuation allowance	(7,504)	(12,178)
Total deferred taxes	$ 55,015	$ 58,245
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
U.S. statutory income tax rate	35.00%	35.00%	(35.00%)
Foreign tax rate differences	(8.00%)	(6.70%)	(1.30%)
State income taxes, net of Federal tax benefit	1.50%	2.10%	(0.70%)
Unbenefitted losses and valuation allowances	0.80%	0.60%	0.60%
Impact of repatriation of non-U.S. earnings	0.00%	0.50%	4.60%
Research tax credits and enhanced deductions	(8.20%)	(7.60%)	(3.60%)
Enacted tax rate changes	(0.20%)	(1.00%)	0.00%
Impact of tax uncertainties	(1.20%)	(1.00%)	3.10%
Impact of goodwill and other impairments	0.00%	0.00%	31.30%
Releasing valuation allowance on loss from disposition of the Phase I Clinical business	0.00%	(8.40%)	0.00%
Non taxable gain from settlement of life insurance policy	0.00%	(2.20%)	0.00%
Other	1.60%	1.60%	1.00%
Effective tax rate	21.30%	12.90%	0.00%

Income Taxes (Operating Loss Carryforwards) (Details) $ in Thousands	Dec. 29, 2012 USD ($)
Foreign Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 15,778
Net Operating Loss Carryforward, Expiring in 2013 [Member] \| Foreign Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	564
Net Operating Loss Carryforward, Expiring in 2014 [Member] \| Foreign Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	500
Net Operating Loss Carryforward, Expiring in 2015 [Member] \| Foreign Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	188
Net Operating Loss Carryforward, Expiring 2022 to 2023 [Member] \| State Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	85
Carried Forward Indefinitely [Member] \| Foreign Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 14,526

Income Taxes (Tax Credit Carryforwards) (Details) $ in Thousands	Dec. 29, 2012 USD ($)
Tax Credit Carryforward [Line Items]
Impact Of Change In SHED Law On Credits	25.00%
Foreign Jurisdiction [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	$ 20,251
Tax Credit Carryforwards, Expiring in 2019 [Member] \| Foreign Jurisdiction [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	14,563
Tax Credit Carryforwards, Expiring in 2020 [Member] \| Foreign Jurisdiction [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	5,368
Tax Credit Carryforwards, Expiring Thereafter [Member] \| Foreign Jurisdiction [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	320
Tax Credit Carryforwards, Expiring from 2029 [Member] \| Canada \| Research and Development [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	$ 27,262

Income Taxes (Capital Loss Carryforwards) (Details) - Capital Loss Carryforward [Member] $ in Thousands	Dec. 29, 2012 USD ($)
U.S. [Member]
Other Tax Carryforward [Line Items]
Other tax carryforwards	$ 267
Canada
Other Tax Carryforward [Line Items]
Other tax carryforwards	$ 696

Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Income Tax Contingency [Line Items]
Decrease in unrecognized tax benefits	$ (3,020)
Unrecognized tax benefits that would impact effective tax rate favorably, if recognized	24,386	$ 22,477
Decrease in unrecognized tax benefits, that if recognized would impact the effective tax rate	(1,909)
Reconciliation of unrecognized tax benefits
Beginning balance	27,976	33,427	$ 21,389
Additions, Tax positions for current year	1,907	1,714	13,142
Additions, Tax positions for prior years	4,196	0	693
Reductions, Tax positions for current year	0	0	0
Reductions, Tax positions for prior years	(28)	(239)	(1,797)
Reductions, Settlements	(3,055)	(6,926)	0
Reductions, Expiration of statute of limitations	0	0	0
Ending balance	30,996	27,976	$ 33,427
Unrecognized tax benefits, income tax interest accrued
Interest related to unrecognized income tax benefits	1,964	$ 1,515
Change in accrued interest related to unrecognized income tax benefits	(449)
SHED [Member]
Income Tax Contingency [Line Items]
Decrease in unrecognized tax benefits	2,408
Reconciliation of unrecognized tax benefits
Reductions, Settlements	(2,954)
Transfer Price [Member]
Income Tax Contingency [Line Items]
Decrease in unrecognized tax benefits	$ 3,034

Income Taxes (Narrative) (Details) - USD ($)				3 Months Ended	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($)	Oct. 20, 2010	Aug. 26, 2010	Jul. 29, 2010	Mar. 26, 2011	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Income Tax Contingency [Line Items]
Impact of French Tax Law Change					$ 714,000
Other assets, noncurrent						$ 48,659,000	$ 57,659,000
Pool of excess tax benefits						9,558,000	10,580,000
Tax benefit recorded to additional pain-in-capital related to exercise of stock options and vesting of restricted shares						(125,000)
Change in valuation allowance						(4,674,000)
Valuation allowance						7,504,000	12,178,000
Income tax benefit associated with a tax loss incurred with the disposition of Phase I clinical business				$ 11,111,000
Authorized amount of stock repurchase	$ 750,000,000	$ 300,000,000	$ 500,000,000
Undistributed earnings of foreign subsidiaries, previously reinvested								$ 229,792,000
Basis in foreign subsidiaries to be repatriated								63,640,000
Cost of repatriation of foreign earnings								10,334,000
Foreign earnings repatriated during the period								293,432,000
Termination fee						0	$ 0	30,000,000
Earnings of non-U.S. subsidiaries considered indefinitely reinvested						155,087,000
Income Tax Expense [Member]
Income Tax Contingency [Line Items]
Cost of repatriation of foreign earnings								15,264,000
Cumulated Translation Adjustment [Member]
Income Tax Contingency [Line Items]
Cost of repatriation of foreign earnings								$ (4,930,000)
PCS-China [Member]
Income Tax Contingency [Line Items]
Change in valuation allowance						(5,380,000)
Other Affiliates [Member]
Income Tax Contingency [Line Items]
Change in valuation allowance						706,000
U.S.
Income Tax Contingency [Line Items]
Other assets, noncurrent						2,981,000
Investments in Foreign Subsidiaries that are Essentially Permanent in Duration [Member]
Income Tax Contingency [Line Items]
Earnings of non-U.S. subsidiaries considered indefinitely reinvested						155,087,000
Provision for U.S. income taxes						$ 0

Income Taxes (Settlements) (Details) - Canada $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($)
Income Tax Examination [Line Items]
Income Tax Reconciliation, Foreign, Settlement, Pretax Profit and Tax Expense	$ (586)
Income Tax Reconciliation, Foreign, Settlement, Pretax Profit	(248)
Income Tax Reconciliation, Tax Settlements, Foreign	$ 0

Employee Benefits (Defined Contribution and Deferred Compensaion Plans) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) year	Dec. 31, 2011 USD ($)	Dec. 25, 2010 USD ($)
Defined Contribution Plans Disclosure [Line Items]
Cash surrender value of life insurance policies	$ 25,240	$ 25,057
401(k) [Member]
Defined Contribution Plans Disclosure [Line Items]
Costs associated with defined contribution plan	$ 4,364	$ 4,178	$ 4,694
Deferred Compensation Plan [Member]
Defined Contribution Plans Disclosure [Line Items]
Age requirement for payment, low range \| year	55
Age requirement for payment, high range \| year	65
Annual contribution to plan, percent of base salary		10.00%
Costs associated with defined contribution plan	$ 2,930	$ 2,048	$ 3,082

Employee Benefits (Obligations and Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Change in plan assets
Employer contributions	$ 13,966
Pension Benefits [Member]
Change in benefit obligations
Benefit obligation at beginning of year	251,916	$ 228,810
Service cost	3,729	3,056	$ 2,617
Interest cost	11,289	12,107	11,214
Plan participants' contributions	53	574
Curtailment	0	0
Settlements	0	(158)
Benefit payments	(6,186)	(6,664)
Actuarial loss (gain)	16,699	13,319
Plan amendments	0	53
Administrative expenses paid	(266)	(272)
Effect of foreign exchange	5,829	1,091
Benefit obligation at end of year	283,063	251,916	228,810
Change in plan assets
Fair value of plan assets at beginning of year	202,652	192,429
Plan assets assumed	0	0
Actual return on plan assets	22,467	3,661
Settlements	0	(158)
Employer contributions	14,222	12,170
Premiums paid	(266)	(272)
Other	0	0
Effect of foreign exchange	5,730	912
Fair value of plan assets at end of year	238,672	202,652	192,429
Funded status
Net balance sheet liability	(44,391)	(49,264)
Non-current assets	0	11
Current liabilities	75	52
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	44,316	49,223
Supplemental Retirement Benefits [Member]
Change in benefit obligations
Benefit obligation at beginning of year	26,456	30,572
Service cost	640	636	597
Interest cost	892	1,201	1,341
Plan participants' contributions	0	0
Curtailment	0	0
Settlements	0	(5,113)
Benefit payments	(743)	(764)
Actuarial loss (gain)	127	(76)
Plan amendments	0	0
Administrative expenses paid	0	0
Effect of foreign exchange	0	0
Benefit obligation at end of year	27,372	26,456	30,572
Change in plan assets
Fair value of plan assets at beginning of year	0	0
Plan assets assumed	0	0
Actual return on plan assets	0	0
Settlements	0	(5,113)
Employer contributions	743	5,877
Premiums paid	0	0
Other	0	0
Effect of foreign exchange	0	0
Fair value of plan assets at end of year	0	0	$ 0
Funded status
Net balance sheet liability	(27,372)	(26,456)
Non-current assets	0	0
Current liabilities	709	717
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	$ 26,663	$ 25,739

Employee Benefits (Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Dec. 29, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income [Roll Forward]
Amortization of net gain (loss)	$ (2,772)	$ (1,068)	$ (804)
Pension Benefits [Member]
Amounts recognized in statement of financial position as part of accumulated other comprehensive income
Net actuarial (gain)/loss				$ 58,594	$ 52,384
Net prior service cost/(credit)				(6,815)	(7,117)
Total	51,779	45,267	22,311	51,779	45,267
The accumulated benefit obligation for all defined benefit plans				275,162	245,705
Amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year
Amortization of net actuarial (gain)/loss	2,764
Amortization of net prior service cost/(credit)	(622)
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	45,267	22,311
Amortization of prior service cost	(2,461)	617
Amortization of net gain (loss)	609	(978)
Asset loss/(gain)	8,030	10,016
Liability loss/(gain)	0	13,319
Recognized prior service (cost) credit due to curtailment	0	53
Recognized (loss)/gain due to settlement	0	(23)
Currency impact	334	(48)
Ending balance	51,779	45,267	22,311
Supplemental Retirement Benefits [Member]
Amounts recognized in statement of financial position as part of accumulated other comprehensive income
Net actuarial (gain)/loss				3,056	3,190
Net prior service cost/(credit)				1,320	1,981
Total	5,171	5,171	5,467	4,376	5,171
The accumulated benefit obligation for all defined benefit plans				$ 26,495	$ 24,663
Amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year
Amortization of net actuarial (gain)/loss	249
Amortization of net prior service cost/(credit)	660
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	5,171	5,467
Amortization of prior service cost	(660)	(497)
Amortization of net gain (loss)	(260)	(210)
Asset loss/(gain)	125	0
Liability loss/(gain)	0	(76)
Recognized prior service (cost) credit due to curtailment	0	0
Recognized (loss)/gain due to settlement	0	487
Currency impact	0	0
Ending balance	$ 4,376	$ 5,171	$ 5,467

Employee Benefits (Benefit Plan Obligations Compared to Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 29, 2012	Dec. 31, 2011
Pension Benefits [Member]
Plans with Accumulated Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	$ 277,187	$ 247,232
Accumulated benefit obligation	271,204	242,467
Fair value of plan assets	233,182	198,689
Plans with Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	283,063	251,723
Accumulated benefit obligation	275,162	245,574
Fair value of plan assets	238,672	202,448
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Plans with Accumulated Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	27,372	26,457
Accumulated benefit obligation	26,495	24,663
Fair value of plan assets	0	0
Plans with Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	27,372	26,457
Accumulated benefit obligation	26,495	24,663
Fair value of plan assets	$ 0	$ 0

Employee Benefits (Components of Net Period Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Employee benefits
Company contributions	$ 13,966
Pension Benefits [Member]
Employee benefits
Service cost	3,729	$ 3,056	$ 2,617
Interest cost	11,289	12,107	11,214
Expected return on plan assets	(13,799)	(13,677)	(12,185)
Amortization of prior service cost (credit)	2,461	(617)	(598)
Amortization of net loss (gain)	(609)	978	749
Net periodic benefit cost	3,071	1,847	1,797
Settlement	0	23	27
Net pension cost	3,071	1,870	1,824
Company contributions	14,222	12,170
Expected contributions during the current fiscal year	13,868
Supplemental Retirement Benefits [Member]
Employee benefits
Service cost	640	636	597
Interest cost	892	1,201	1,341
Expected return on plan assets	0	0	0
Amortization of prior service cost (credit)	260	498	498
Amortization of net loss (gain)	660	210	155
Net periodic benefit cost	2,452	2,545	2,591
Settlement	0	(487)	0
Net pension cost	2,452	2,058	$ 2,591
Company contributions	$ 743	$ 5,877

Employee Benefits (Assumptions) (Details)	12 Months Ended
Employee Benefits (Assumptions) (Details)	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.13%	4.47%
Rate of compensation increase	3.04%	3.12%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.47%	5.20%	5.63%
Expected long-term return on plan assets	6.55%	6.79%	7.11%
Rate of compensation increase	3.12%	3.48%	2.50%
Supplemental Retirement Benefits [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	2.63%	3.42%
Rate of compensation increase	2.50%	2.50%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	3.42%	4.34%	5.22%
Expected long-term return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	2.50%	2.50%	2.50%

Employee Benefits (Plan Assets) (Details) - Pension Benefits [Member] - USD ($)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Target Allocations
Target Allocation, Equity securities	67.00%
Target Allocation, Fixed income	31.00%
Target Allocation, Other	2.00%
Target Allocation, Total	100.00%
Actual Allocations
Defined Benefit Plan, Equity Securities		60.00%	59.00%
Defined Benefit Plan, Debt Securities		36.00%	37.00%
Defined Benefit Plan, Other Plan Assets		4.00%	4.00%
Defined Benefit Plan, Actual Plan Asset Allocations		100.00%	100.00%
Fair value of plan assets		$ 238,672,000	$ 202,652,000	$ 192,429,000
Cash [Member]
Actual Allocations
Fair value of plan assets		1,336,000
Common Stock [Member]
Actual Allocations
Fair value of plan assets		105,125,000
Debt Securities [Member]
Actual Allocations
Fair value of plan assets		66,452,000
Mutual Funds [Member]
Actual Allocations
Fair value of plan assets		64,004,000
Life Insurance Policies [Member]
Actual Allocations
Fair value of plan assets		43,000
Other Plan Asset Categories [Member]
Actual Allocations
Fair value of plan assets		1,712,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Actual Allocations
Fair value of plan assets		221,160,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Cash [Member]
Actual Allocations
Fair value of plan assets		1,336,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Common Stock [Member]
Actual Allocations
Fair value of plan assets		100,864,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Debt Securities [Member]
Actual Allocations
Fair value of plan assets		63,283,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Mutual Funds [Member]
Actual Allocations
Fair value of plan assets		55,453,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Life Insurance Policies [Member]
Actual Allocations
Fair value of plan assets		0
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] \| Other Plan Asset Categories [Member]
Actual Allocations
Fair value of plan assets		224,000
Significant Other Observable Inputs Level 2 [Member]
Actual Allocations
Fair value of plan assets		16,024,000
Significant Other Observable Inputs Level 2 [Member] \| Cash [Member]
Actual Allocations
Fair value of plan assets		0
Significant Other Observable Inputs Level 2 [Member] \| Common Stock [Member]
Actual Allocations
Fair value of plan assets		4,261,000
Significant Other Observable Inputs Level 2 [Member] \| Debt Securities [Member]
Actual Allocations
Fair value of plan assets		3,169,000
Significant Other Observable Inputs Level 2 [Member] \| Mutual Funds [Member]
Actual Allocations
Fair value of plan assets		8,551,000
Significant Other Observable Inputs Level 2 [Member] \| Life Insurance Policies [Member]
Actual Allocations
Fair value of plan assets		43,000
Significant Other Observable Inputs Level 2 [Member] \| Other Plan Asset Categories [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member]
Actual Allocations
Fair value of plan assets		1,488,000	$ 1,419,000
Significant Unobservable Inputs Level 3 [Member] \| Cash [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member] \| Common Stock [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member] \| Debt Securities [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member] \| Mutual Funds [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member] \| Life Insurance Policies [Member]
Actual Allocations
Fair value of plan assets		0
Significant Unobservable Inputs Level 3 [Member] \| Other Plan Asset Categories [Member]
Actual Allocations
Fair value of plan assets		$ 1,488,000

Employee Benefits (Change in Level 3 Plan Assets) (Details) - Pension Benefits [Member] $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($)
Change in Level 3 plan assets
Fair value of plan assets at beginning of year	$ 202,652
Fair value of plan assets at end of year	238,672
Significant Unobservable Inputs Level 3 [Member]
Change in Level 3 plan assets
Fair value of plan assets at beginning of year	1,419
Actual return on plan assets, Relating to assets still held at end of year	51
Relating to assets sold during the period, Purchases, sales and settlements	(78)
Relating to assets sold during the period, Transfers in and/or out of Level 3	96
Fair value of plan assets at end of year	$ 1,488

- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References + Details

Employee Benefits (Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 29, 2012 USD ($)
Pension Benefits [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Expected future benefit payments, 2013	$ 7,180
Expected future benefit payments, 2014	6,773
Expected future benefit payments, 2015	7,559
Expected future benefit payments, 2016	8,591
Expected future benefit payments, 2017	8,657
Expected future benefit payments, 2018-2022	54,207
Supplemental Retirement Benefits [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Expected future benefit payments, 2013	721
Expected future benefit payments, 2014	800
Expected future benefit payments, 2015	745
Expected future benefit payments, 2016	12,379
Expected future benefit payments, 2017	721
Expected future benefit payments, 2018-2022	$ 8,811

Employee Benefits (Post-Retirement Health and Life Insurance Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	$ (37,454)	$ (33,171)	$ (17,603)
Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	1,344
Service cost	201	$ 188	$ 177
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	$ 105

- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph i
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e681-108580

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6525008

+ Details

- Definition

This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

+ References

+ Details

Stock Plans and Stock Based Compensation (Stock Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Stock-based compensation
Stock-based compensation expense	$ 21,855	$ 21,706	$ 25,526
Provision for income taxes	(7,793)	(7,784)	(9,179)
Net income attributable to common shareowners	14,062	13,922	16,347
Capitalized stock-based compensation related costs	0
Cost of sales
Stock-based compensation
Stock-based compensation expense	5,470	5,983	7,186
Selling and administration
Stock-based compensation
Stock-based compensation expense	16,385	15,723	18,340
Performance Based Stock Award Program
Stock-based compensation
Stock-based compensation expense	$ (28)	$ 188	$ 496

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References + Details

Stock Plans and Stock Based Compensation (Stock Options and Restricted Stock Grants) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($) mo months year $ / shares shares	Dec. 31, 2011 USD ($) year $ / shares shares	Dec. 25, 2010 USD ($) year $ / shares	May 08, 2007 shares
Stock-Based Compensation
Maximum shares to be awarded under plan		3,000,000
Stock-based compensation weighted-average assumptions
Expected life (in years) \| year	4.5	4.2	4.5
Expected volatility (as a percent)	35.00%	33.00%	34.00%
Risk-free interest rate (as a percent)	0.84%	2.21%	2.35%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 10.94	$ 11.32	$ 11.96
2007 Incentive Plan
Stock-Based Compensation
Maximum shares to be awarded under plan				12,200,000
Stock options, shares equivalent				2.3
Stock options
Stock-Based Compensation
Vesting period, min	3
Vesting period, max	4
Stock option activity, shares
Options outstanding, balance at the beginning of the period (in shares)	6,081,263
Options granted (in shares)	590,675
Options exercised (in shares)	(650,255)
Options canceled (in shares)	(161,280)
Options outstanding, balance at the end of the period (in shares)	5,860,403	6,081,263
Options exercisable, balance at the end of the period (in shares)	3,871,131
Stock option activity, weighted-average exercise price
Options outstanding, balance at the beginning of the period (in dollars per share) \| $ / shares	$ 38.25
Options granted (in dollars per share) \| $ / shares	36.09
Options exercised (in dollars per share) \| $ / shares	28.34
Options canceled (in dollars per share) \| $ / shares	39.00
Options outstanding, balance at the end of the period (in dollars per share) \| $ / shares	39.11	$ 38.25
Options exercisable, balance at the end of the period (in dollars per share) \| $ / shares	$ 41.27
Stock option activity, weighted-average remaining contractual life
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm \| year	2.25
Stock option activity, Aggregate Intrinsic Value
Options exercisable, balance at the end of the period \| $	$ 7,600
Unrecognized compensation expense
Number of unvested awards related to unrecognized compensation cost (in shares)	1,989,722
Unrecognized compensation cost \| $	$ 12,924
Estimated weighted-average amortization period for unrecognized compensation cost (in months) \| months	26
Stock option activity, additional disclosures
Intrinsic value of options exercised \| $	$ 5,135	$ 7,950	$ 1,767
Amount of cash received from exercise of options \| $	18,359
Actual tax benefit realized for tax deductions from option exercises \| $	$ 1,682
Non-vested stock option activity, shares
Options non-vested, balance at the beginning of the period (in shares)	2,487,889
Options granted (in shares)	590,675
Options forfeited (in shares)	(47,846)
Options vested (in shares)	(1,040,996)
Options non-vested, balance at the end of the period (in shares)	1,989,722	2,487,889
Non-vested stock option acitvity, weighted-average exercise price
Options non-vested, balance at the beginning of the period (in dollars per share) \| $ / shares	$ 34.89
Options granted (in dollars per share) \| $ / shares	36.09
Options forfeited (in dollars per share) \| $ / shares	35.08
Options vested (in dollars per share) \| $ / shares	35.53
Options non-vested, balance at the end of the period (in dollars per share) \| $ / shares	$ 34.91	$ 34.89
Restricted stock
Stock-Based Compensation
Vesting period, min	3
Vesting period, max	4
Unrecognized compensation expense
Unrecognized compensation cost \| $	$ 21,970
Estimated weighted-average amortization period for unrecognized compensation cost (in months) \| mo	31
Restricted stock activity, restricted stock
Balance at the beginning of the period (in shares)	703,011
Granted (in shares)	541,820
Vested (in shares)	(288,549)
Canceled (in shares)	(21,777)
Balance at the end of the period (in shares)	934,505	703,011
Restricted stock activity, weighted-average grant date fair value
Balance at the beginning of the period (in dollars per share) \| $ / shares	$ 35.70
Granted (in dollars per share) \| $ / shares	36.10
Vested (in dollars per share) \| $ / shares	35.99
Canceled (in dollars per share) \| $ / shares	43.16
Balance at the end of the period (in dollars per share) \| $ / shares	$ 35.83	$ 35.70
Restricted stock activity, additional disclosures
Fair value of restricted stock grants that vested \| $	$ 10,385	$ 10,989	$ 13,072
Actual tax benefit realized from vested restricted stock grants \| $	$ 3,720

Stock Plans and Stock Based Compensation (Stock Options by Range of Exercise Prices) (Details) $ / shares in Units, $ in Thousands	Dec. 29, 2012 USD ($) year $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	5,860,403
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	3.14
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 39.11
Options Outstanding, Aggregate Intrinsic Value \| $	$ 12,109,727
Options Exercisable (in shares) \| shares	3,871,131
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	2.25
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 41.27
Options Exercisable, Aggregate Intrinsic Value \| $	$ 7,599,511
Closing stock price \| $ / shares	$ 36.88
In-the-money, options exercisable \| shares	1,854,088
$20.01 - $30.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	844,220
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	3.12
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 25.30
Options Outstanding, Aggregate Intrinsic Value \| $	$ 9,775,196
Options Exercisable (in shares) \| shares	519,445
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	3.08
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 25.59
Options Exercisable, Aggregate Intrinsic Value \| $	$ 5,864,633
$30.01 - $40.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	3,097,578
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	3.97
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 36.62
Options Outstanding, Aggregate Intrinsic Value \| $	$ 2,334,531
Options Exercisable (in shares) \| shares	1,436,354
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	2.53
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 36.35
Options Exercisable, Aggregate Intrinsic Value \| $	$ 1,734,878
$40.01 - $50.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	1,383,030
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	1.71
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 45.64
Options Outstanding, Aggregate Intrinsic Value \| $	$ 0
Options Exercisable (in shares) \| shares	1,379,757
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	1.70
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 45.66
Options Exercisable, Aggregate Intrinsic Value \| $	$ 0
$50.01 - $60.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	487,255
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	2.10
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 57.99
Options Outstanding, Aggregate Intrinsic Value \| $	$ 0
Options Exercisable (in shares) \| shares	487,255
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	2.10
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 57.99
Options Exercisable, Aggregate Intrinsic Value \| $	$ 0
$60.01 - $70.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in shares) \| shares	48,320
Options Outstanding, Weighted Average Remaining Contractual Life (In years) \| year	2.30
Options Outstanding, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 62.56
Options Outstanding, Aggregate Intrinsic Value \| $	$ 0
Options Exercisable (in shares) \| shares	48,320
Options Exercisable, Weighted Average Remaining Contractual Life (In years) \| year	2.30
Options Exercisable, Weighted Average Exercise Price (in dollars per share) \| $ / shares	$ 62.56
Options Exercisable, Aggregate Intrinsic Value \| $	$ 0

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Commitments and Contingencies Disclosure [Abstract]
Rent expense from operating leases	$ 18,246	$ 18,778	$ 22,635
Maximum insurance deductibles	750
Future minimum payments under noncancellable operating leases
2013	15,440
2014	12,749
2015	8,953
2016	7,196
2017	5,889
Thereafter	$ 14,257

Termination Fee - WuXi PharmaTech (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Termination Fee Disclosure [Abstract]
Termination Fee	$ 0	$ 0	$ 30,000

Business Segment and Geographic Information (Business Segment) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 25, 2010 USD ($)
Segment Reporting [Abstract]
Number of reportable segments	2
Business segment information
Net sales	$ 1,129,530	$ 1,142,647	$ 1,133,416
Operating income	165,765	174,306	(298,512)
Total assets	1,586,344	1,558,320
Long-lived assets	765,679	795,689	814,979
Depreciation and amortization	81,275	85,230	93,649
Capital expenditures	47,534	49,143	42,860
Reconciliation of segment operating income to consolidated operating income
Operating income	165,765	174,306	(298,512)
Termination fee	0	0	(30,000)
Net sales for each significant service area
Net sales	1,129,530	1,142,647	1,133,416
Unallocated corporate overhead
Stock-based compensation expense	21,855	21,706	25,526
Depreciation	63,207	63,435	69,244
Research models
Business segment information
Net sales	381,790	401,660	386,872
Net sales for each significant service area
Net sales	381,790	401,660	386,872
Research model services
Business segment information
Net sales	219,671	220,698	208,363
Net sales for each significant service area
Net sales	219,671	220,698	208,363
Other products
Business segment information
Net sales	93,622	83,061	71,751
Net sales for each significant service area
Net sales	93,622	83,061	71,751
Total
Business segment information
Operating income	236,990	231,244	(195,262)
Reconciliation of segment operating income to consolidated operating income
Operating income	236,990	231,244	(195,262)
Research Models and Services
Business segment information
Net sales	695,083	705,419	666,986
Gross margin	289,750	297,327	278,391
Operating income	202,362	206,319	184,464
Total assets	698,134	687,346	711,824
Long-lived assets	272,559	282,388	277,193
Depreciation and amortization	37,541	37,240	37,657
Capital expenditures	36,856	34,257	27,694
Reconciliation of segment operating income to consolidated operating income
Operating income	202,362	206,319	184,464
Net sales for each significant service area
Net sales	695,083	705,419	666,986
Preclinical Services
Business segment information
Net sales	434,447	437,228	466,430
Gross margin	102,331	104,915	106,369
Operating income	34,628	24,925	(379,726)
Total assets	888,210	869,881	1,016,864
Long-lived assets	493,120	513,302	537,786
Depreciation and amortization	43,734	47,990	55,992
Capital expenditures	10,678	14,886	15,166
Reconciliation of segment operating income to consolidated operating income
Operating income	34,628	24,925	(379,726)
Net sales for each significant service area
Net sales	434,447	437,228	466,430
Unallocated corporate overhead
Business segment information
Operating income	(71,225)	(56,938)	(73,250)
Reconciliation of segment operating income to consolidated operating income
Operating income	(71,225)	(56,938)	(73,250)
Unallocated corporate overhead
Stock-based compensation expense	11,724	11,159	11,893
U.S. retirement plans	4,831	3,802	3,921
Audit, tax and related expenses	3,019	3,069	2,805
Salary and bonus	19,997	18,486	19,617
Global IT	12,622	11,785	12,793
Employee health, LDP and fringe benefit expense	(4,569)	(2,952)	(2,231)
Consulting and professional services	4,434	8,432	7,686
Depreciation	6,260	6,312	5,796
Severance expense	53	(65)	4,153
Transaction (acquisition/disposition) costs	3,772	1,329	6,669
Contingent consideration write-down	0	(5,598)	(4,335)
Other general unallocated corporate expenses	9,082	1,179	4,483
Total unallocated corporate overhead costs	$ 71,225	$ 56,938	$ 73,250

Business Segment and Geographic Information (Geographic Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	$ 1,129,530	$ 1,142,647	$ 1,133,416
Long-lived assets	765,679	795,689	814,979
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	534,817	545,185	535,790
Long-lived assets	476,927	497,197	507,089
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	341,550	348,455	327,492
Long-lived assets	122,351	123,634	124,428
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	160,004	158,997	181,028
Long-lived assets	124,302	127,531	136,846
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	77,707	75,992	73,852
Long-lived assets	39,642	45,857	44,818
Other Non-U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to unaffiliated clients	15,452	14,018	15,254
Long-lived assets	$ 2,457	$ 1,470	$ 1,798

Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Discontinued Operations (Details) - USD ($) $ in Thousands	Mar. 26, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Jun. 25, 2011
Operating results from discontinued operations
Provision (benefit) for income taxes	$ (11,111)
Income (loss) from operations of discontinued businesses, net of taxes		$ (4,252)	$ (5,545)	$ (8,012)
Assets and liabilities of discontinued operations
Current assets		495	107
Long-term assets		3,328	986
Current liabilities		1,802	1,165
Long-term liabilities		8,795	2,522
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax		7,158
Disposal Group, Including Discontinued Operation, Other Liabilities		9,679
Phase I clinical business
Operating results from discontinued operations
Facility lease payments		13,272
Net sales		0	2,112	17,508
Asset impairment		0	0	6,402
Income (loss) from operatoins of discontinued businesses, before income taxes		(6,986)	(8,964)	(13,465)
Provision (benefit) for income taxes		(2,734)	(3,419)	(5,453)
Income (loss) from operations of discontinued businesses, net of taxes		(4,252)	(5,545)	$ (8,012)
Assets and liabilities of discontinued operations
Current assets		495	107
Long-term assets		3,328	986
Total assets		3,823	1,093
Current liabilities		1,802	1,165
Long-term liabilities		8,795	2,522		$ 2,994
Total liabilities		$ 10,597	$ 3,687