Biological assets, useful life
Biological Assets, Useful Life
Biological Assets, Useful Life
Deferred income taxes
Deferred Income Taxes and Tax Credits
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Additions
Accounts Receivable, Allowance for Credit Loss, Recovery
RMS
RMS
Research Models and Services Segment [Member]
Represents Research Models and Services segment of the entity which includes sales of research models, genetically engineered models and services (GEMS), consulting and staffing services (CSS), research animal diagnostics, discovery services, in vitro and avian vaccine services.
Less: Net income attributable to noncontrolling interests
Less: Net income attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Pay vs Performance Disclosure [Line Items]
Accrued liabilities
Accrued Liabilities, Current
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Changes in assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Contractually defined redemption value
Redeemable Noncontrolling Interest, Equity, Redemption Value
Vital River
Vital River [Member]
Vital River [Member]
Raw materials and supplies
Inventory, Raw Materials and Supplies, Net of Reserves
All Award Types
Award Type [Domain]
Fair Value as of Grant Date
Award Grant Date Fair Value
Performance obligations expected to be satisfied, expected timing
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
DEBT AND OTHER FINANCING ARRANGEMENTS
Debt Disclosure [Text Block]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Treasury Shares and Accelerated Stock Repurchase Program (ASR) [Line Items]
Stock Repurchases [Line Items]
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
Effect of exchange rate changes on cash, cash equivalents, and restricted cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations
Customer contract deposits (included in Other current liabilities)
Contract With Customer Liability, Customer Deposits
Contract With Customer Liability, Customer Deposits
Total debt and finance leases
Long-Term Debt, Gross And Lease Obligation
Long-Term Debt, Gross And Lease Obligation
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures [Abstract]
Deferred tax liabilities
Deferred Income Tax Liabilities, Net
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Accounts payable
Accounts Payable, Current
Computer hardware and software
Computer Equipment [Member]
Restatement Determination Date:
Restatement Determination Date [Axis]
Purchases of investments and contributions to venture capital investments
Payments to Acquire Investments
Commitments and contingencies (Notes 2, 11, 13, and 15)
Commitments and Contingencies
Average Volatility
Measurement Input, Price Volatility [Member]
Insider Trading Policies and Procedures [Line Items]
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Foreign currency adjustments
Restructuring Reserve, Foreign Currency Translation Gain (Loss)
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
EQUITY AND NONCONTROLLING INTERESTS
Equity [Text Block]
Operating lease right-of-use asset, net
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Lease Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Lease Assets
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Geographical [Axis]
Geographical [Axis]
INCOME TAXES
Income Tax Disclosure [Text Block]
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Ownership [Axis]
Ownership [Axis]
Total
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization
Property, plant and equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Foreign currency translation
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss)
Current liabilities:
Liabilities, Current [Abstract]
Goodwill, impaired, accumulated impairment loss
Goodwill, Impaired, Accumulated Impairment Loss
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, $0.01 par value; 20,000 shares authorized; no shares issued and outstanding
Preferred Stock, Value, Issued
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Payments of contingent consideration
Payment for Contingent Consideration Liability, Financing Activities
Supplier
Supplier [Member]
Supplier [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets, by Major Class [Table]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets, by Major Class [Table]
Disclosure of the major classes of finite-lived and indefinite-lived intangible assets showing the amount, any significant residual value, weighted average amortization period, and other characteristics. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company.
Gain in equity equal to the excess fair value of additional equity interest purchased
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain
Long-lived asset impairment charges
Impairment, Long-Lived Asset, Held-for-Use
Diluted (in dollars per share)
Earnings Per Share, Diluted
Schedule of Investments [Table]
Schedule of Investments [Table]
4.25% Senior Notes due 2028
Senior Notes Due 2028 [Member]
Senior Notes Due 2028 [Member]
PEO Total Compensation Amount
PEO Total Compensation Amount
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Trade receivables and contract assets, net of allowances for credit losses of $25,407 and $25,722, respectively
Trade receivables and contract assets, net
Accounts Receivable, after Allowance for Credit Loss, Current
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Level 3
Fair Value, Inputs, Level 3 [Member]
Treasury stock, shares (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Treasury Stock, Common, Shares
Revolving Facility
Line of Credit [Member]
Other comprehensive income (loss) before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, before Tax
Litigation Case [Axis]
Litigation Case [Axis]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Redeemable noncontrolling interest
Beginning balance
Ending balance
Redeemable Noncontrolling Interest, Equity, Carrying Amount
Trading Symbol
Trading Symbol
Letters of credit outstanding
Letters of Credit Outstanding, Amount
Purchases of additional equity interests, net
Payments to Acquire Equity Method Investments
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Less: Income tax benefit related to items of other comprehensive income
Income tax expense (benefit)
Other Comprehensive Income (Loss), Tax
Net income available to Charles River Laboratories International, Inc.
Net income available to Charles River Laboratories International, Inc.
Net Income (Loss)
Cash acquired
Cash Acquired from Acquisition
Total current liabilities
Liabilities, Current
Derivative Contract [Domain]
Derivative Contract [Domain]
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Company Selected Measure Name
Company Selected Measure Name
Machinery and equipment
Machinery and Equipment [Member]
Property, plant and equipment, net
Property, plant and equipment, net
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Other comprehensive (loss), net of tax
Temporary Equity, Other Comprehensive Income (Loss), Net of Tax
Temporary Equity, Other Comprehensive Income (Loss), Net of Tax
Other current liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other
Liabilities, Redeemable Noncontrolling Interests and Equity
Liabilities and Equity [Abstract]
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
Prepaid income tax
Prepaid Taxes
Equity:
Equity, Attributable to Parent [Abstract]
Contract liabilities
Contract with Customer, Liability
Unrealized gains (losses) on hedging instruments
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Other assets:
Other Assets [Abstract]
Other intangible assets
Other
Other Intangible Assets [Member]
Reconciliation of the Numerator and Denominator in the Computations of the Basic and Diluted Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Cost of revenue (excluding amortization of intangible assets)
Cost of Goods and Services Sold
Litigation Status [Domain]
Litigation Status [Domain]
Executive Category:
Executive Category [Axis]
Weighted Average Amortization Life
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life
Level 1
Fair Value, Inputs, Level 1 [Member]
Name
Measure Name
Manufacturing
Manufacturing Support Segment [Member]
Manufacturing Support Segment
Name
Forgone Recovery, Individual Name
Book Value
Reported Value Measurement [Member]
Goodwill
Goodwill
Beginning balance
Ending balance
Goodwill
Schedule of Composition of Property, Plant and Equipment, Net
Property, Plant and Equipment [Table Text Block]
Equity Components [Axis]
Equity Components [Axis]
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Authorized Share Repurchase Program
Authorized Share Repurchase Program [Member]
Authorized Share Repurchase Program [Member]
Investment Type [Axis]
Investment Type [Axis]
Measurement Basis [Axis]
Measurement Basis [Axis]
Underlying Securities
Award Underlying Securities Amount
Smaller Reporting Company
Entity Small Business
Weighted-average number of common shares outstanding:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Investments [Domain]
Investments [Domain]
Expense (excluding non-cash charges)
Restructuring and Related Cost, Incurred Cost
Local Phone Number
Local Phone Number
Trade receivables and contract assets, net
Increase (Decrease) in Accounts Receivable
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Letter of Credit
Letter of Credit [Member]
Rollforward of Contingent Consideration Related to Previous Acquisitions
Fair Value, Contingent Consideration [Table Text Block]
[Table Text Block] for Fair Value, Contingent Consideration [Table]
Selling, general and administrative
Selling, General and Administrative Expenses [Member]
Notional amount
Derivative, Notional Amount
Payments
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Services and products transferred at a point in time
Transferred at Point in Time [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Operating lease right-of-use liabilities
Operating Lease, Liability, Noncurrent
Net income
Net Income (Loss), Including Portion Attributable To Noncontrolling Interest And Excluding Redeemable Noncontrolling Interest
Net Income (Loss), Including Portion Attributable To Noncontrolling Interest And Excluding Redeemable Noncontrolling Interest
Business combination, redemption price
Business Combination, Redemption Price
Business Combination, Redemption Price
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Income before income taxes
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Schedule of Equity Method Investments [Roll Forward]
Schedule of Equity Method Investments [Roll Forward]
Schedule of Equity Method Investments
Depreciation
Depreciation
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Debt discount and debt issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax
Shares acquired to satisfy minimum individual statutory tax withholdings for vesting of equity instruments
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Schedule of Equity Method Investments
Equity Method Investments [Table Text Block]
Schedule of Purchase Price Allocation and Transaction and Integration Costs
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Increase in unrecognized tax benefits that would impact effective tax rate
Increase (Decrease) In Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Increase (Decrease) In Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Europe
Europe [Member]
Accrued income taxes
Accrued Income Taxes, Current
Call option term, period after sixth anniversary
Business Combination, Term, Period After Sixth Anniversary
Business Combination, Term, Period After Sixth Anniversary
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Product and Service [Domain]
Product and Service [Domain]
Other Performance Measure, Amount
Other Performance Measure, Amount
4.00% Senior Notes due 2031
Senior Notes Due 2031 [Member]
Senior Notes Due 2031
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Inventories
Increase (Decrease) in Inventories
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Litigation Status [Axis]
Litigation Status [Axis]
Severance and other personnel personnel related costs liabilities and facilities related costs liabilities
Beginning balance
Ending balance
Restructuring Reserve
DSA
DSA
Discovery and Safety Assessment Segment [Member]
Award Type
Award Type [Axis]
Anti-dilutive common stock equivalents (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Document Quarterly Report
Document Quarterly Report
Capital contributions
Equity Method Investments, Capital Contributions
Equity Method Investments, Capital Contributions
Interest expense
Interest Expense
Purchases of Property, plant and equipment included in Accounts payable and Accrued liabilities
Capital Expenditures Incurred but Not yet Paid
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Hedging Designation [Axis]
Hedging Designation [Axis]
Goodwill [Line Items]
Goodwill [Line Items]
Definite-Lived Intangible Assets
Finite-Lived Intangible Assets Acquired
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Trading Arrangement:
Trading Arrangement [Axis]
Contingent consideration, measurement input
Business Combination, Contingent Consideration, Liability, Measurement Input
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Reduction for acquisition of entity
Equity Method Investments, Decrease Due To Acquisition
Equity Method Investments, Decrease Due To Acquisition
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Axis]
Schedule of Prepaid and Accrued Tax Positions
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Preferred Stock Dividends and Other Adjustments [Abstract]
Preferred Stock Dividends and Other Adjustments [Abstract]
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Entity File Number
Entity File Number
Loss Contingencies [Table]
Loss Contingencies [Table]
Consideration contingent upon future performance
Business Combination, Consideration Liability Contingent Upon Future Performance
Business Combination, Consideration Liability Contingent Upon Future Performance
Weighted Average Cost of Capital
Measurement Input, Discount Rate [Member]
Prepaid assets
Prepaid Expense, Current
Amortization of intangible assets
Amortization of Intangible Assets
Entity Shell Company
Entity Shell Company
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Newly Issued Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Intangible assets, net
Net
Finite-Lived Intangible Assets, Net
Restatement Determination Date
Restatement Determination Date
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Cash, cash equivalents, and restricted cash, beginning of period
Cash, cash equivalents, and restricted cash, end of period
Cash, cash equivalents, and restricted cash, end of period
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Debt instrument value
Debt Instrument, Fair Value Disclosure
Interest income
Investment Income, Interest
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Denominator:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Common stock, shares issued (in shares)
Common Stock, Shares, Issued
Purchase price
Business Combination, Consideration Transferred
Current portion of long-term debt and finance leases
Long-Term Debt and Lease Obligation, Current
Deferred revenue
Current deferred revenue
Contract with Customer, Liability, Current
Treasury stock, at cost, 42 and zero shares, as of March 30, 2024 and December 30, 2023, respectively
Treasury Stock, Common, Value
Security Exchange Name
Security Exchange Name
Total assets measured at fair value
Assets, Fair Value Disclosure
Selling, general and administrative
Selling, General and Administrative Expense
US Fish and Wildlife Service
US Fish and Wildlife Service [Member]
US Fish and Wildlife Service
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Employee Stock Option
Employee Stock Option [Member]
Foreign Currency Translation Adjustment and Other
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Percentage of contract liabilities recognized as revenue during period
Contract With Customer, Percentage Of Liabilities, Recognized As Revenue
Contract With Customer, Percentage Of Liabilities, Recognized As Revenue
Other, net
Proceeds from (Payments for) Other Financing Activities
Maximum
Maximum [Member]
Comprehensive income attributable to Charles River Laboratories International, Inc., net of income taxes
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Schedule of Restructuring Costs
Restructuring and Related Costs [Table Text Block]
Document Type
Document Type
Acquisitions
Goodwill, Acquired During Period
Tabular List, Table
Tabular List [Table Text Block]
Entity Address, Address Line One
Entity Address, Address Line One
Purchase of treasury shares
Treasury Stock, Value, Acquired, Cost Method
Equity interest
Subsidiary, Ownership Percentage, Parent
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Other, net
Other Noncash Income (Expense)
Business Acquisition [Axis]
Business Acquisition [Axis]
Revenue, remaining performance obligation, percentage
Revenue, Remaining Performance Obligation, Percentage
Less: Allowance for credit losses
Less: Allowance for credit losses
Accounts Receivable, Allowance for Credit Loss, Current
Trademarks and trade names
Trademarks and Trade Names [Member]
Subsequent Event
Subsequent Event [Member]
Restricted cash included in Other assets
Restricted Cash, Noncurrent
Schedule of Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Other current liabilities
Other Liabilities, Current
Income Statement [Abstract]
Income Statement [Abstract]
Schedule of Investments [Line Items]
Schedule of Investments [Line Items]
Costs and expenses:
Costs and Expenses [Abstract]
Title of 12(b) Security
Title of 12(b) Security
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Other long-term liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Schedule of Rollforward of Company's Severance and Retention Costs Liability
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Noncontrolling interest ownership percentage
Subsidiary, Ownership Percentage, Noncontrolling Owner
Operating Segments
Operating Segments [Member]
Numerator:
Net Income (Loss) Attributable to Parent [Abstract]
Biological assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Biological Assets, Noncurrent
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Biological Assets, Noncurrent
Issuance of stock under employee compensation plans
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Long-term debt and finance leases
Long-Term Debt And Lease Obligation, Net Of Current Portion
Long-Term Debt And Lease Obligation, Net Of Current Portion
Derivative, fixed interest rate
Derivative, Fixed Interest Rate
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Inventory, non-human primates
Inventory, Non-Human Primates
Inventory, Non-Human Primates
Entity Tax Identification Number
Entity Tax Identification Number
Foreign exchange
Goodwill, Foreign Currency Translation Gain (Loss)
Venture capital and strategic equity investments
Beginning balance
Ending balance
Equity Method Investments
Inventories
Inventory, Net
Land
Land [Member]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Entity Interactive Data Current
Entity Interactive Data Current
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Other long-term assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets
Put option term, period after first anniversary
Business Combination, Put Option, Term, Period After First Anniversary
Business Combination, Put Option, Term, Period After First Anniversary
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Total Shareholder Return Amount
Total Shareholder Return Amount
Purchase of treasury stock
Payments for Repurchase of Common Stock
Cost of products sold (excluding amortization of intangible assets)
Product [Member]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
ACQUISITIONS AND DIVESTITURES
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Inventory Disclosure [Abstract]
Total Charles River Laboratories, Inc. Equity
Parent [Member]
Segments [Domain]
Segments [Domain]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Number of businesses in reportable segment
Number Of Subsegments
Number Of Subsegments
Consolidation Items [Domain]
Consolidation Items [Domain]
Retained earnings
Retained Earnings (Accumulated Deficit)
Measure:
Measure [Axis]
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Name
Outstanding Recovery, Individual Name
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Business combination, remaining equity to purchase
Business Combination, Remaining Equity To Purchase
Business Combination, Remaining Equity To Purchase
Current assets:
Current assets measured at fair value:
Assets, Current [Abstract]
Total
Accounts Receivable, before Allowance for Credit Loss, Current
Entity Address, State or Province
Entity Address, State or Province
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Schedule of Revenues from External Customers and Long-Lived Assets
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Cash flows relating to operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Common stock, shares outstanding (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Common Stock, Shares, Outstanding
PEO
PEO [Member]
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Increase (Decrease) in Temporary Equity
Increase (Decrease) in Temporary Equity [Roll Forward]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Purchase of additional equity interest
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Composition of Inventories
Schedule of Inventory, Current [Table Text Block]
Net income available to Charles River Laboratories International, Inc. common shareholders
Net Income (Loss) Available to Common Stockholders, Basic
Interest Rate Swap
Interest Rate Swap [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Additional cash paid
Payments To Acquire Businesses, Gross, Additional Cash Payment
Payments To Acquire Businesses, Gross, Additional Cash Payment
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Effective tax rate
Effective Income Tax Rate Reconciliation, Percent
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Percentage of unbilled revenue billed during period
Contract With Customer, Asset, Percentage Of Amount Reclassified To Receivable
Contract With Customer, Asset, Percentage Of Amount Reclassified To Receivable
Total liabilities
Liabilities
Cost of services provided (excluding amortization of intangible assets)
Service [Member]
BASIS OF PRESENTATION
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Strategic Investments
Strategic Investments [Member]
Strategic Investments
Inventories
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory
Accumulated Other Comprehensive Income (Loss)
Total
AOCI Attributable to Parent [Member]
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Business combination, equity stake percentage
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage
Measurement Frequency [Domain]
Measurement Frequency [Domain]
PROPERTY, PLANT AND EQUIPMENT, NET
Property, Plant and Equipment Disclosure [Text Block]
All Executive Categories
All Executive Categories [Member]
Long-term deferred revenue (included in Other long-term liabilities)
Contract with Customer, Liability, Noncurrent
Other long-term liabilities measured at fair value:
Liabilities, Noncurrent [Abstract]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Pension and Other Post-Retirement Benefit Plans
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Property, Plant and Equipment, Type [Domain]
Long-Lived Tangible Asset [Domain]
Canada
CANADA
Number of reportable segments
Number of Reportable Segments
Discover And Safety Assessment Segment
Discover And Safety Assessment Segment [Member]
Discover And Safety Assessment Segment
Net income attributable to common shareholders:
Earnings Per Share [Abstract]
Term deposit
Term Deposit, Fair Value Disclosure
Term Deposit, Fair Value Disclosure
Decrease in unrecognized tax benefits that are reasonably possibly over the next twelve-month period
Decrease in Unrecognized Tax Benefits is Reasonably Possible
Common stock, $0.01 par value; 120,000 shares authorized; 51,552 shares issued and 51,510 shares outstanding as of March 30, 2024, and 51,338 shares issued and outstanding as of December 30, 2023
Common Stock, Value, Issued
Net current period other comprehensive income (loss)
Other Comprehensive Income (Loss), before Tax
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Senior Notes
Senior Notes [Member]
Segment Reporting
Segment Reporting, Policy [Policy Text Block]
Total current assets
Assets, Current
Other comprehensive income (loss):
Other Comprehensive Income (Loss), before Tax [Abstract]
Contingent consideration
Business Combination, Contingent Consideration, Liability
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
All Individuals
All Individuals [Member]
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information [Abstract]
Litigation Case [Domain]
Litigation Case [Domain]
Other income (expense), net
Other Nonoperating Income (Expense)
Entity Filer Category
Entity Filer Category
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Restructuring Type [Axis]
Restructuring Type [Axis]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Statement [Table]
Statement [Table]
Contingent consideration
Business Combination, Contingent Consideration, Liability, Noncurrent
Current Fiscal Year End Date
Current Fiscal Year End Date
Aggregate authorization of share repurchase program
Stock Repurchase Program, Authorized Amount
GOODWILL AND INTANGIBLE ASSETS
Goodwill and Intangible Assets Disclosure [Text Block]
Unrecognized tax benefits
Unrecognized Tax Benefits
PEO Name
PEO Name
Fair value of contingent consideration
Beginning balance
Ending balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Asia Pacific
Asia Pacific [Member]
Schedule of Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Life insurance policies
Cash Surrender Value, Fair Value Disclosure
Restricted cash included in Other current assets
Restricted Cash, Current
Buildings
Building [Member]
Schedule of Goodwill
Schedule of Goodwill [Table Text Block]
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Unallocated corporate
Corporate, Non-Segment [Member]
Other assets and liabilities, net
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Depreciation and amortization
Depreciation, Depletion and Amortization
Furniture and fixtures
Furniture and Fixtures [Member]
Stated interest rate
Debt Instrument, Interest Rate, Stated Percentage
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
Services and products transferred over time
Transferred over Time [Member]
Accrued compensation
Increase (Decrease) in Employee Related Liabilities
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Adjustments for working capital/debt
Business Combination, Adjustments for Working Capital/Debt
Business Combination, Adjustments for Working Capital/Debt
Business Combination and Asset Acquisition [Abstract]
Total Charles River Laboratories International, Inc. equity
Equity, Attributable to Parent
Consolidation Items [Axis]
Consolidation Items [Axis]
Unrecognized tax benefits that would impact effective tax rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Net income
Temporary Equity, Net Income
Long-lived assets
Long-Lived Assets
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Net Unrealized (Loss) Gain on Cash Flow Hedge
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Long-term debt, net and finance leases
Long-Term Debt and Lease Obligation
Deferred tax liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities
Severance and Transition Costs
Severance And Transition Costs [Member]
Severance And Transition Costs [Member]
Property, Plant and Equipment, Type [Axis]
Long-Lived Tangible Asset [Axis]
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Hedging Designation [Domain]
Hedging Designation [Domain]
3.75% Senior Notes due 2029
Senior Notes Due 2029 [Member]
Senior Notes Due 2029
Level 2
Fair Value, Inputs, Level 2 [Member]
Emerging Growth Company
Entity Emerging Growth Company
Long-Lived Assets by Geographic Area
Long-Lived Assets by Geographic Areas [Table Text Block]
Capital expenditures
Capital Expenditures
Payments to Acquire Productive Assets
Amortization of net loss, settlement losses, and prior service benefit included in total cost for pension and other post-retirement benefit plans
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Redeemable noncontrolling interest
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Redeemable Noncontrolling Interest
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Redeemable Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Increase in unrecognized tax benefits
Unrecognized Tax Benefits, Period Increase (Decrease)
Definite-lived intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
RESTRUCTURING AND ASSET IMPAIRMENTS
Restructuring, Impairment, and Other Activities Disclosure [Text Block]
Document Fiscal Period Focus
Document Fiscal Period Focus
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Title
Trading Arrangement, Individual Title
Stock-based compensation
Share-Based Payment Arrangement, Noncash Expense
Common Stock
Common Stock [Member]
Individual:
Individual [Axis]
City Area Code
City Area Code
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Other
Other [Member]
Other [Member]
Product and Service [Axis]
Product and Service [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Business combination, consideration transferred, other
Business Combination, Consideration Transferred, Other
Document Fiscal Year Focus
Document Fiscal Year Focus
Weighted average interest rate
Debt, Weighted Average Interest Rate
Geographical [Domain]
Geographical [Domain]
Unpaid advanced client billings
Contract With Customer, Unpaid Advanced Client Billings
Contract With Customer, Unpaid Advanced Client Billings
Operating lease right-of-use liabilities (Long-term)
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation
Total equity
Beginning balance
Ending balance
Equity, Including Portion Attributable to Noncontrolling Interest
Dividends to noncontrolling interests
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Minimum
Minimum [Member]
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
Distributions
Proceeds from Equity Method Investment, Distribution
Exercise Price
Award Exercise Price
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Adjustment of redeemable noncontrolling interests to redemption value
Temporary Equity, Accretion to Redemption Value
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Assets
Assets [Abstract]
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Proceeds from long-term debt and revolving credit facility
Proceeds from Issuance of Long-Term Debt
Total liabilities measured at fair value
Liabilities, Fair Value Disclosure
Weighted average probability percentage of achieving maximum target
Fair Value, Measurement with Unobservable Inputs Reconciliation, Weighted Average Probability of Maximum Target
Fair Value, Measurement with Unobservable Inputs Reconciliation, Weighted Average Probability of Maximum Target
Cash flows relating to financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Net income
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Cash paid for income taxes
Income Taxes Paid, Net
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Deferred tax assets
Deferred Income Tax Assets, Net
COMMITMENTS AND CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
Other, net
Payments for (Proceeds from) Other Investing Activities
Unbilled revenue
Contract with Customer, Asset, before Allowance for Credit Loss, Current
Percentage of voting interests acquired
Business Acquisition, Percentage of Voting Interests Acquired
Retained Earnings
Retained Earnings [Member]
Current portion of long-term debt
Long-Term Debt, Current Maturities
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Total liabilities, noncontrolling interests and equity
Liabilities and Equity
Other current assets (excluding cash)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other
Other assets
Other Assets, Noncurrent
Other income (expense):
Nonoperating Income (Expense) [Abstract]
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Ownership [Domain]
Ownership [Domain]
Contingent liability
Equity Method Investment, Contingent Liability
Equity Method Investment, Contingent Liability
Operating lease right-of-use assets, net
Operating Lease, Right-of-Use Asset
Basic (in dollars per share)
Earnings Per Share, Basic
Less: Adjustment of redeemable noncontrolling interest
Adjustment of Redeemable Noncontrolling Interest
Adjustment of Redeemable Noncontrolling Interest
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Less: Incremental dividends attributable to noncontrolling interest holders
Incremental dividends attributed to noncontrolling interest holders
Incremental Dividends Attributed to Noncontrolling Interest Holders
Incremental Dividends Attributed to Noncontrolling Interest Holders
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Arrangement Duration
Trading Arrangement Duration
Entity Address, City or Town
Entity Address, City or Town
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Schedule of Revenue and Other Financial Information by Business Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Adjustment of redeemable noncontrolling interests to redemption value
Adjustment of redeemable noncontrolling interests to redemption value
Noncontrolling Interest, Increase (Decrease) in Redemption Value
Noncontrolling Interest, Increase (Decrease) in Redemption Value
Pending Litigation
Pending Litigation [Member]
Value of previously owned interest in acquiree
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value
Consolidation
Consolidation, Policy [Policy Text Block]
Total
Restructuring Charges
Cash flows relating to investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Document Transition Report
Document Transition Report
Award Timing Predetermined
Award Timing Predetermined [Flag]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Remaining authorized repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Technology
Technology-Based Intangible Assets [Member]
Termination Date
Trading Arrangement Termination Date
Proceeds from sale of investments
Proceeds from Sale and Maturity of Marketable Securities
Accounts payable
Increase (Decrease) in Accounts Payable
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transaction and integration costs
Business Combination, Integration Related Costs And Transaction Costs
Business Combination, Integration Related Costs And Transaction Costs
Venture Capital Funds
Venture Capital Funds [Member]
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Property, Plant and Equipment [Abstract]
Lease revenue
Sales-type Lease, Revenue
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Long-term debt, gross
Long-Term Debt, Gross
Liability Class [Axis]
Liability Class [Axis]
All Trading Arrangements
All Trading Arrangements [Member]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Redeemable noncontrolling interest, purchase price payable
Redeemable Noncontrolling Interest, Purchase Price Payable
Redeemable Noncontrolling Interest, Purchase Price Payable
Less: Accumulated depreciation
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization
Schedule of Definite-Lived Intangible Assets Acquired as Part of Business Combination
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve [Roll Forward]
Timing of Transfer of Good or Service [Domain]
Timing of Transfer of Good or Service [Domain]
Award Timing Disclosures [Line Items]
Compensation Amount
Outstanding Recovery Compensation Amount
Less: Comprehensive income (loss) related to noncontrolling interests, net of income taxes
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Provision for credit losses
Accounts Receivable, Credit Loss Expense (Reversal)
Interest rate swap
Derivative Asset
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Proceeds from exercises of stock options
Proceeds from Stock Options Exercised
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Backlog
Order or Production Backlog [Member]
Finance leases
Finance Lease, Liability
Other intangible assets
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
SUPPLEMENTAL CASH FLOW INFORMATION
Cash Flow, Supplemental Disclosures [Text Block]
Other current assets
Prepaid Expense and Other Assets, Current
Dividend fair value
Redeemable Noncontrolling Interest, Dividend Receivable Fair Value
Redeemable Noncontrolling Interest, Dividend Receivable Fair Value
Other comprehensive (loss), net of tax
Other Comprehensive Income (Loss), Including Portion Attributable To Noncontrolling Interest and Excluding Redeemable Noncontrolling Interest, Net of Tax
Other Comprehensive Income (Loss), Including Portion Attributable To Noncontrolling Interest and Excluding Redeemable Noncontrolling Interest, Net of Tax
Insider Trading Arrangements [Line Items]
Beginning balance
Ending balance
Accounts Receivable, Allowance for Credit Loss
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Issuance of stock under employee compensation plans (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Entity Registrant Name
Entity Registrant Name
Asset Impairments and Other Costs
Asset Impairment And Other Costs [Member]
Asset Impairment And Other Costs
Award Timing Method
Award Timing Method [Text Block]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Stock options, restricted stock units and performance share units (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
VENTURE CAPITAL AND STRATEGIC EQUITY INVESTMENTS
Investments In Limited Partnerships [Text Block]
Investments in Limited Partnerships [Text Block]
Cost of services provided and products sold (excluding amortization of intangible assets)
Cost of Sales [Member]
Nonredeemable noncontrolling interests
Equity, Attributable to Noncontrolling Interest
Payments on long-term debt, revolving credit facility, and finance lease obligations
Repayment of Long-Term Debt, Long-Term Lease Obligation, and Capital Security
Payments / utilization
Payments for Restructuring
Document Period End Date
Document Period End Date
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Deferred revenue
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Adoption Date
Trading Arrangement Adoption Date
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Allowance for Credit Losses
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
Treasury Stock
Treasury Stock, Common [Member]
Entity Central Index Key
Entity Central Index Key
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Effect of dilutive securities:
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Gross
Finite-Lived Intangible Assets, Gross
Provision for income taxes
Income Tax Expense (Benefit)
Finished products
Inventory, Finished Goods, Net of Reserves
Designated as Hedging Instrument
Designated as Hedging Instrument [Member]
Deductions
Accounts Receivable, Allowance for Credit Loss, Writeoff
Trade receivables
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Accrued compensation
Employee-related Liabilities, Current
FAIR VALUE
Fair Value Disclosures [Text Block]
Name
Trading Arrangement, Individual Name
(Gain) loss on venture capital and strategic equity investments, net
Venture Capital And Equity Method Investments, Gain (Loss), Net
Venture Capital And Equity Method Investments, Gain (Loss), Net
Schedule of Disaggregation of Revenue
Revenue by Geographic Area
Disaggregation of Revenue [Table Text Block]
Equity [Abstract]
Equity [Abstract]
INVENTORY
Inventory Disclosure [Text Block]
Total purchase price allocation
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Total revenue
Revenue
Revenue from Contract with Customer, Excluding Assessed Tax
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Amendment Flag
Amendment Flag
Shannon Parisotto [Member]
Shannon Parisotto
Cash and cash equivalents
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Shares acquired to satisfy minimum individual statutory tax withholdings for vesting of equity instruments (in shares)
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Acquisition of businesses and assets, net of cash acquired
Cash portion of consideration transferred
Payments to Acquire Businesses, Net of Cash Acquired
Cash paid for interest
Interest Paid, Excluding Capitalized Interest, Operating Activities
Comprehensive income, net of income taxes
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Other Debt
Other Long-term Debt [Member]
Represents other debt instruments not elsewhere specified in the taxonomy.
Purchase of treasury shares (in shares)
Treasury Stock, Shares, Acquired
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Leasehold improvements
Leasehold Improvements [Member]
Customer contract deposits
Increase (Decrease) In Contract With Customer Liability, Customer Deposits
Increase (Decrease) In Contract With Customer Liability, Customer Deposits
Diluted (in shares)
Weighted-average shares outstanding—Diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Contingent Consideration
Contingent Consideration [Member]
Represents potential amounts payable by the entity as contingent consideration in connection with a business acquisition.
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Payments for repurchase of redeemable noncontrolling interest
Payments for Repurchase of Redeemable Noncontrolling Interest
Schedule of Client Receivables, Contract Assets and Contract Liabilities
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Assets acquired under finance leases
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Schedule of Stock Repurchases [Table]
Schedule of Stock Repurchases [Table]
Schedule detailing information relating to stock repurchases.
Equity interest acquired
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage
REVENUE FROM CONTRACTS WITH CUSTOMERS
Revenue from Contract with Customer [Text Block]
Company Selected Measure Amount
Company Selected Measure Amount
Additional paid-in capital
Additional Paid in Capital, Common Stock
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Vehicles
Vehicles [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Total assets
Assets
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Gain (loss)
Income (Loss) from Equity Method Investments
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Cover page.
Cover [Abstract]
Noveprim Group
Noveprim Group [Member]
Noveprim Group
Stock-based compensation
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
U.S.
UNITED STATES
Fair Value, Recurring
Fair Value, Recurring [Member]
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities [Abstract]
Other long-term liabilities
Other Liabilities, Noncurrent
Non-NEOs
Non-NEOs [Member]
Schedule of Supplemental Cash Flow Information
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Performance obligations expected to be satisfied
Revenue, Remaining Performance Obligation, Amount
Construction in progress
Construction in Progress [Member]
Client receivables
Trade Receivables from Customers
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for billed goods or services.
SEGMENT AND GEOGRAPHIC INFORMATION
Segment Reporting Disclosure [Text Block]
Net change in cash, cash equivalents, and restricted cash
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Accrued Compensation
Accrued Compensation [Member]
Accrued Compensation [Member]
Non-PEO NEO
Non-PEO NEO [Member]
Equity Component [Domain]
Equity Component [Domain]
Current portion of finance leases
Finance Lease, Liability, Current
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Additional ownership percentage acquired by parent
Noncontrolling Interest, Additional Ownership Percentage Acquired By Parent
Noncontrolling Interest, Additional Ownership Percentage Acquired By Parent
Work in process
Inventory, Work in Process, Net of Reserves
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Basic (in shares)
Weighted-average shares outstanding—Basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Entity Current Reporting Status
Entity Current Reporting Status
Operating income
Operating Income (Loss)
Foreign currency translation
Equity Method Investment, Foreign Currency Translation
Equity Method Investment, Foreign Currency Translation
SAMDI Tech, Inc.
SAMDI Tech, Inc [Member]
SAMDI Tech, Inc
Other comprehensive income (loss), before income taxes
Other Comprehensive Income (Loss), Before Income Taxes
Other Comprehensive Income (Loss), Before Income Taxes
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Segments [Axis]
Segments [Axis]
Statement [Line Items]
Statement [Line Items]
Fair Value
Estimate of Fair Value Measurement [Member]
Accrued interest on unrecognized tax benefits
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Business combination deferred purchase price
Business Combination, Deferred Purchase Price
Business Combination, Deferred Purchase Price
James Foster [Member]
James Foster
Dividends to noncontrolling interests
Temporary Equity, Dividends to Redeemable Noncontrolling Interest
Temporary Equity, Dividends to Redeemable Noncontrolling Interest
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Schedule of Long-term Debt and Finance Lease Obligations
Schedule of Debt [Table Text Block]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Client relationships
Client relationships
Customer Relationships [Member]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Noncontrolling Interest
Noncontrolling Interest [Member]