Variable interest entities and other investments Variable Interest Entities and Other Investments Variable Interest Entities and Other Investments Operating lease liabilities - short-term Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Operating Lease, Liability, Current Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Operating Lease, Liability, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Other Other Employee-related Liabilities, Current Accrued expenses Accrued Liabilities, Current Other Long-Term Liabilities Other Noncurrent Liabilities [Member] Revolving credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Income tax assessments Income Tax Examination, Estimate of Possible Loss Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Stock option expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Award Type [Domain] Award Type [Domain] Intelligence Clients Intelligence Clients [Member] Intelligence Clients [Member] Fair Value as of Grant Date Award Grant Date Fair Value Remaining performance obligation, expected timing, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Defined Contribution Plan and Other Post-Retirement Benefits Pension and Other Postretirement Plans, Policy [Policy Text Block] EverWatch EverWatch Corp. [Member] EverWatch Corp. Cash consideration (gross of cash acquired) Payments to Acquire Businesses, Gross Term Loan A New Tranche A Term Loan [Member] New Tranche A Term Loan Payments for cost method investments Payments to Acquire Investments Insider Trading Policies and Procedures [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Current derivative instruments Derivative Asset, Current Other Interest Income (Expense), Other Interest Income (Expense), Other Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] 2029 Lessee, Operating Lease, Liability, to be Paid, Year Five Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Stockholders’ Equity Equity [Text Block] Stock repurchase program, increase in authorized amount Stock Repurchase Program, Increase In Authorized Amount Stock Repurchase Program, Increase In Authorized Amount Total Liabilities Financial Liabilities Fair Value Disclosure Director Director [Member] Customer [Axis] Customer [Axis] Current liabilities: Liabilities, Current [Abstract] U.S. Federal Deferred Federal Income Tax Expense (Benefit) Subsequent Event Type [Domain] Subsequent Event Type [Domain] Dividends paid Dividends, Cash Proceeds from sale of businesses Proceeds from Divestiture of Businesses Impairment charges Impairment, Long-Lived Asset, Held-for-Use Diluted (in dollars per share) Earnings Per Share, Diluted Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Accounting standards update [Extensible List] Accounting Standards Update [Extensible Enumeration] Schedule of Components of Net Postretirement Medical Expense Schedule of Net Benefit Costs [Table Text Block] Litigation Case [Axis] Litigation Case [Axis] Trading Symbol Trading Symbol Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Net cash paid during the period for: Cash Payments [Abstract] Cash Payments Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Intangible assets, gross Intangible Assets, Gross (Excluding Goodwill) Contracts with U.S. Government Agencies or Other U.S. Government Contractors Government Contracts Concentration Risk [Member] Stockholders’ equity: Equity, Attributable to Parent [Abstract] Schedule of Unrecognized Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Advance payments, billings in excess of costs incurred and deferred revenue (contract liabilities) Contract with Customer, Liability Redemption of principal, redemption period Debt Instrument, Redemption of Aggregate Principal Amount, Redemption Period Debt Instrument, Redemption of Aggregate Principal Amount, Redemption Period Schedule of Reconciliation of the Income Used to Compute Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Service cost Defined Benefit Plan, Service Cost Amount of related party transaction Related Party Transaction, Amounts of Transaction Executive Category: Executive Category [Axis] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Health care cost trend rate assumed for next year, Pre 65 Defined Benefit Plan, Health Care Cost Trend Rate Assumed For Next Fiscal Year, Pre 65 Defined Benefit Plan, Health Care Cost Trend Rate Assumed For Next Fiscal Year, Pre 65 Level 1 Fair Value, Inputs, Level 1 [Member] Total net deferred income tax assets Deferred Tax Assets, Net of Valuation Allowance Susan Penfield [Member] Susan Penfield Carrying Amount Reported Value Measurement [Member] Summary of Components of Property 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] Hedging Relationship [Domain] Hedging Relationship [Domain] Options available for future grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant 2026 Long-Term Debt, Maturity, Year Two Melody Barnes [Member] Melody Barnes Entity Small Business Entity Small Business 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Four Local Phone Number Local Phone Number Ever Watch Ever Watch [Member] Ever Watch Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Letter of Credit Letter of Credit [Member] Notional amount of interest rate swaps Notional Amount Derivative, Notional Amount Measurement Frequency [Axis] Measurement Frequency [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Schedule of Unvested Restricted Stock Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Earnings for diluted computations Undistributed Earnings, Diluted Depreciation and amortization expense related to property and equipment Depreciation Retirement Benefits [Abstract] Retirement Benefits [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Schedule of Business Acquisitions, by Acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Unfavorable Regulatory Action Unfavorable Regulatory Action [Member] Schedule of Accounts Payable and Other Accrued Expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Interest expense on debt Interest Expense, Debt Total Long-Term Debt, Including Interest Long-Term Debt, Including Interest Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Other current liabilities Contract with Customer, Liability [Abstract] Award Type [Axis] Award Type [Axis] Restricted stock granted (in shares) Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Supplemental disclosures of non-cash investing and financing activities Noncash Investing and Financing Items [Abstract] Reconciliation of the beginning and ending amount of potential tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Recurring dividends Dividends, Common Stock Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag General and administrative expenses General and Administrative Expense [Member] Hedging Designation [Axis] Hedging Designation [Axis] Triggering Event [Axis] Triggering Event [Axis] Triggering Event Property and equipment, gross Property, Plant and Equipment, Gross Operating lease liabilities arising from obtaining ROU asset Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Summary of Dividends Declared Dividends Declared [Table Text Block] Related Party Transactions Related Party Transactions Disclosure [Text Block] Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Summary of Components of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Unbilled receivables Deferred Tax Liabilities, Current Accounts Receivable, Unbilled Amount of deferred tax liability attributable to taxable temporary differences from unbilled current accounts receivable. Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Operating lease liabilities Operating Lease, Liability, Current Software Computer Software, Intangible Asset [Member] Stock issued during period, shares, employee stock purchase plans (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Net Carrying Value Finite-Lived Intangible Assets, Net Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Recently Adopted Accounting Pronouncements and Recent Accounting Pronouncements Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Debt Debt Instrument, Fair Value Disclosure Undistributed earnings (loss) allocated to participating securities, diluted Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share Basic And Diluted by Common Class [Table] Schedule of Earnings Per Share Basic And Diluted by Common Class [Table] Commitment fee (as a percent) Line of Credit Facility, Commitment Fee Percentage Non-deductible expenses, including non-deductible penalties Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Stock options outstanding, unvested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares Security Exchange Name Security Exchange Name Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive (loss) income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Equity Incentive Plan Options Employee Stock Option [Member] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Investments in Variable Interest Entities and Other Investments Investment, Policy [Policy Text Block] Total operating costs and expenses Costs and Expenses Maximum Maximum [Member] Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation Unrecognized compensation cost Unrecognized Compensation Cost Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Type Document Type Total Long-Term Debt, Interest Long-Term Debt, Interest Tabular List, Table Tabular List [Table Text Block] Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items] Schedule of Earnings Per Share Basic And Diluted by Common Class [Line Items] Schedule of Earnings Per Share Basic And Diluted by Common Class [Line Items] Repurchase of common stock Repurchase of common stock Treasury Stock, Value, Acquired, Cost Method Thereafter Long-Term Debt, Maturity, after Year Five Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock-based Compensation Share-Based Payment Arrangement [Text Block] U.S. Federal Current Federal Tax Expense (Benefit) Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Business Acquisition [Axis] Business Acquisition [Axis] Allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Common stock votes per share Common Stock Votes Per Share Common stock votes per share Derivative [Table] Derivative [Table] Self-Funded Medical Plans Self Insurance Reserve [Policy Text Block] State and local Deferred State and Local Income Tax Expense (Benefit) Variable Rate [Axis] Variable Rate [Axis] Accounts payable and other accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Operating costs and expenses: Costs and Expenses [Abstract] Title of 12(b) Security Title of 12(b) Security Revenue (as a percent) Revenue From Contract With Customer, Excluding Assessed Tax, Percentage Revenue From Contract With Customer, Excluding Assessed Tax, Percentage Net actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Related Party [Domain] Related Party, Type [Domain] Unamortizable intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Unvested, beginning balance (in dollars per share) Unvested, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Operating lease right-of-use asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-Of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-Of-Use Asset Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Entity Tax Identification Number Entity Tax Identification Number De-Consolidation of non-controlling interest Noncontrolling Interest, Decrease from Deconsolidation Total operating lease costs Lease, Cost 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] Interest on indebtedness Long-Term Debt, Interest [Abstract] Long-Term Debt, Interest Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Measure: Measure [Axis] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name Revenue Recognition Revenue from Contract with Customer [Policy Text Block] 2028 Long-Term Debt, Including Interest, Maturity, Year Four Long-Term Debt, Including Interest, Maturity, Year Four Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Purchase price allocation: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Schedule of Components of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Carrying Values and Estimated Fair Values of Debt Instruments Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year One Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments Common stock, outstanding (in shares) Beginning of period (in shares) End of period (in shares) Common Stock, Shares, Outstanding Interest cost Defined Benefit Plan, Interest Cost PEO PEO [Member] Estimate of possible loss Loss Contingency, Estimate of Possible Loss Concentrations of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Auditor Location Auditor Location Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Employee Benefit Plans Retirement Benefits [Text Block] Changes in plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Accounts receivable–unbilled (contract assets) Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Triggering Event [Domain] Triggering Event [Domain] Triggering Event MENA business MENA Business [Member] MENA Business Interest Rate Swap 1 Interest Rate Swap 1 [Member] Interest Rate Swap 1 State and local income taxes, net of federal tax Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Schedule of Accrued Compensation and Benefits Schedule of Accrued Compensation And Benefits [Table Text Block] Schedule of Accrued Compensation And Benefits [Table Text Block] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Interest rate swaps Interest Rate Swap [Member] Debt Instrument [Axis] Debt Instrument [Axis] Long-term derivative instruments Derivative Liability, Noncurrent Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Repayments on revolving credit facility, term loans, and Senior Notes Repayments of Debt Credit Facility [Axis] Credit Facility [Axis] Schedule of Future Debt Principal Repayments Schedule of Maturities of Long-Term Debt [Table Text Block] Total liabilities Liabilities Total current Current Income Tax Expense (Benefit) Measurement Frequency [Domain] Measurement Frequency [Domain] Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Title of Individual [Axis] Title of Individual [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Related Party Transaction [Domain] Related Party Transaction [Domain] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Affiliated Entity Affiliated Entity [Member] General and administrative expenses General and Administrative Expense Other comprehensive income benefit (expense) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Contribution to non-controlling interest Noncontrolling Interest, Increase from Contributions Noncontrolling Interest, Increase from Contributions 2025 Long-Term Debt, Interest, Maturity, Year One Long-Term Debt, Interest, Maturity, Year One Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] State and local Current State and Local Tax Expense (Benefit) Total current assets Assets, Current Total postretirement medical expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Retirement Plan Name [Domain] Retirement Plan Name [Domain] Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] 4.000% Senior Notes due 2029 4.00% Senior Notes due 2029 [Member] 4.00% Senior Notes due 2029 Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Excess tax benefits from stock-based compensation Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Concentration risk (as a percent) Concentration Risk, Percentage Operating lease liabilities - long-term Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Operating Lease, Liability, Noncurrent Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Operating Lease, Liability, Noncurrent Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Schedule of Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Five Net operating loss and other carryforwards Deferred Tax Assets, Net Operating Loss & Capital Loss Carryforwards Deferred Tax Assets, Net Operating Loss & Capital Loss Carryforwards Other Postretirement Benefits Plan Other Postretirement Benefits Plan [Member] Valuation of Accounts Receivable Accounts Receivable [Policy Text Block] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Summary of Expected Amortization Expense for Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Class of Stock [Axis] Class of Stock [Axis] Schedule of Components of Income Tax Receivables and Payables Schedule of Components of Income Tax Receivables and Payables [Table Text Block] Schedule of Components of Income Tax Receivables and Payables Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Variable rate, adjustment Debt Instrument, Basis Spread on Variable Rate, Adjustment Debt Instrument, Basis Spread on Variable Rate, Adjustment Period Three Debt Instrument, Redemption, Period Three [Member] Depreciation and amortization Depreciation, Depletion and Amortization Furniture and equipment Furniture and Fixtures [Member] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Noncash lease expense Noncash Lease Expense Noncash Lease Expense Business Combination and Asset Acquisition [Abstract] Total Long-Term Debt, Including Interest [Abstract] Long-Term Debt, Including Interest Goodwill impairment Goodwill, Impairment Loss Number of employees Entity Number of Employees Less: Valuation allowance Deferred Tax Assets, Valuation Allowance Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Contract with customer, liability, revenue recognized Contract with Customer, Liability, Revenue Recognized Accumulated Gain (Loss) Derivatives designated as cash flow hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Equity Incentive Plan Options Amended and Restated Equity Incentive Plan [Member] Amended and Restated Equity Incentive Plan [Member] Deferred tax liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities 2026 Long-Term Debt, Including Interest, Maturity, Year Two Long-Term Debt, Including Interest, Maturity, Year Two Earnings per share of common share: Earnings Per Share Reconciliation [Abstract] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Accrued Compensation and Benefits Compensation Related Costs, General [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Issuance Costs Debt Issuance Costs, Net Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Intangible assets, net of accumulated amortization Net Carrying Value Intangible Assets, Net (Excluding Goodwill) Other Long-Term Assets Other Noncurrent Assets [Member] Total gross deferred income tax assets Deferred Tax Assets, Gross Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] 2025 Lessee, Operating Lease, Liability, to be Paid, Year One Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Title Trading Arrangement, Individual Title 2027 Long-Term Debt, Interest, Maturity, Year Three Long-Term Debt, Interest, Maturity, Year Three Common Stock Common Stock [Member] Change in postretirement plan costs Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Individual: Individual [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Income Statement Location [Domain] Income Statement Location [Domain] Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Long-term derivative instruments Derivative Asset, Noncurrent Schedule of Recurring Fair Value Measurements Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Beginning of period End of period Equity, Including Portion Attributable to Noncontrolling Interest Vacation Accrued Vacation, Current Accrued interest and penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Minimum Minimum [Member] Property and equipment, net of accumulated depreciation Property and equipment, net Property, Plant and Equipment, Net Prime Contractor Sales Channel, Directly to Consumer [Member] Dividends paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Total other comprehensive (loss) income, net of tax Other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax Disposal Group Classification [Axis] Disposal Group Classification [Axis] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Benefit obligation, beginning of the year Benefit obligation, end of the year Defined Benefit Plan, Benefit Obligation ASSETS Assets [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Net proceeds from debt issuance Proceeds from Issuance of Long-Term Debt 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Deferred income tax assets: Deferred Tax Assets, Net [Abstract] Accounts receivable–billed Billed Contracts Receivable Other Deferred Tax Assets, Other Other Current Assets Other Current Assets [Member] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Deferred tax assets Deferred Income Tax Assets, Net Retirement Plan Type [Axis] Retirement Plan Type [Axis] Reserves for uncertain tax positions Liability For Uncertainty In Income Taxes Liability For Uncertainty In Income Taxes Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Other investing activities Payments for (Proceeds from) Other Investing Activities Undistributed earnings (loss) allocated to participating securities, basic Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Retained Earnings Retained Earnings [Member] Current portion of long-term debt Less: 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] Health care cost trend rate assumed for next year, Post 65 Defined Benefit Plan, Health Care Cost Trend Rate Assumed For Next Fiscal Year, Post 65 Defined Benefit Plan, Health Care Cost Trend Rate Assumed For Next Fiscal Year, Post 65 Change in unrealized (loss) gain on derivatives designated as cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Basic (in dollars per share) Earnings Per Share, Basic Accounting Policies [Abstract] Accounting Policies [Abstract] Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Schedule of Change in Benefit Obligation Schedule of Changes in Projected Benefit Obligations [Table Text Block] Net loss (gains) on dispositions, impairments and other Gain (Loss) on Disposition of Assets Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Fair value of plan assets, beginning of the year Fair value of plan assets, end of the year Defined Benefit Plan, Plan Assets, Amount Net deferred income tax asset Deferred Tax Assets, Net Long term income tax receivable Income Taxes Receivable, Noncurrent Share repurchases transacted but not settled and paid Share Repurchases Incurred But Not Yet Paid Share Repurchases Incurred But Not Yet Paid Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Income taxes paid Income Taxes Paid Document Transition Report Document Transition Report Award Timing Predetermined Award Timing Predetermined [Flag] Sub-contractor Sales Channel, Through Intermediary [Member] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] 2028 Long-Term Debt, Interest, Maturity, Year Four Long-Term Debt, Interest, Maturity, Year Four Repayments of lines of credit Repayments of Lines of Credit Entity Public Float Entity Public Float 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] Three-month Term SOFR Three-Month Term Secured Overnight Financing Rate (SOFR) [Member] Three-Month Term Secured Overnight Financing Rate (SOFR) Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Outstanding Balance Total Long-Term Debt, Gross All Trading Arrangements All Trading Arrangements [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Compensation Amount Outstanding Recovery Compensation Amount MTS Business MTS Business [Member] MTS Business Provision (benefit) for credit losses Accounts Receivable, Credit Loss Expense (Reversal) Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Deferred income taxes Total deferred Deferred Income Tax Expense (Benefit) Subsequent Event Type [Axis] Subsequent Event Type [Axis] Stock option exercises Proceeds from Stock Options Exercised Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period 2029 Long-Term Debt, Including Interest, Maturity, Year Five Long-Term Debt, Including Interest, Maturity, Year Five Summary of Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] 2025 Long-Term Debt, Maturity, Year One Period One Debt Instrument, Redemption, Period One [Member] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Document Period End Date Document Period End Date Adoption Date Trading Arrangement Adoption Date Treasury Stock Treasury Stock, Common [Member] Provision for claimed indirect costs Loss Contingency Accrual Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Income tax expense Total Income Tax Expense (Benefit) Long-term deferred compensation plan liability Deferred Compensation Liability, Classified, Noncurrent Designated as Hedging Instrument Designated as Hedging Instrument [Member] Fair Value Measurements Fair Value Disclosures [Text Block] Number of operating segments Number of Operating Segments Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Payments for legal settlements Payments for Legal Settlements Equity [Abstract] Equity [Abstract] Weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Increases (reductions) resulting from: Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Money Market Funds Money Market Funds [Member] Cash and cash equivalents Cash and cash equivalents, fair value Cash and Cash Equivalents, at Carrying Value Payments for business acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Credit Facility [Domain] Credit Facility [Domain] Repurchase of common stock (in shares) Repurchase of common stock (in shares) Treasury Stock, Shares, Acquired Long-term debt, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Useful life Property, Plant and Equipment, Useful Life Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Weighted-average discount rate for benefit obligation (as a percent) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Schedule of Contract Assets and Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Unrecognized tax benefits that decrease deferred tax assets Unrecognized Tax Benefits That Impact Deferred Tax Liabilities Unrecognized Tax Benefits That Impact Deferred Tax Liabilities Tax Years 2013-2015 Tax Years 2013-2015 [Member] Tax Years 2013-2015 [Member] Services Performed Under Subcontractor Services Performed Under Subcontractor [Member] Services Performed Under Subcontractor [Member] Revenue Revenue from Contract with Customer [Text Block] Settlements with taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Additional paid-in capital Additional Paid in Capital, Common Stock Additional Paid-In Capital Additional Paid-in Capital [Member] Document Annual Report Document Annual Report Balance Sheet Location [Axis] Balance Sheet Location [Axis] Net loss (gains) associated with equity method investment activities Income (Loss) from Equity Method Investments Revision of Prior Period [Axis] Revision of Prior Period [Axis] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Cover [Abstract] Cover [Abstract] Subsequent Events Subsequent Events [Text Block] Tax Period [Axis] Tax Period [Axis] Amortization of debt issuance costs Amortization of Debt Issuance Costs Total U.S. government UNITED STATES Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Cash dividends paid Cash dividends paid Payments of Dividends Other long-term liabilities Other Liabilities, Noncurrent Total future lease payments Lessee, Operating Lease, Liability, to be Paid Revenue, amount of remaining performance obligation Revenue, Remaining Performance Obligation, Amount Recognition of liability related to future restricted stock units vesting Adjustments To Additional Paid In Capital, Recognition Of Liability Related To Future Restricted Stock Units Vesting Adjustments To Additional Paid In Capital, Recognition Of Liability Related To Future Restricted Stock Units Vesting Cash Flow Hedging Cash Flow Hedging [Member] Business Segment Information Segment Reporting Disclosure [Text Block] Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Term Loans Secured Debt [Member] Equity Component [Domain] Equity Component [Domain] State State and Local Jurisdiction [Member] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Other Deferred Tax Liabilities, Other Entity Current Reporting Status Entity Current Reporting Status Concentration Risk Type [Domain] Concentration Risk Type [Domain] Fixed-price Fixed-Price Contract [Member] Operating income Operating income (loss) Operating Income (Loss) Total deferred income tax liabilities Deferred Tax Liabilities, Gross Consolidated Entities [Domain] Consolidated Entities [Domain] Redemption of principal amount (as a percent) Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Discount for shares repurchased (as a percent) Stock Repurchase Program, Shares Repurchased, Discount Percentage Stock Repurchase Program, Shares Repurchased, Discount Percentage Estimated Fair Value Estimate of Fair Value Measurement [Member] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Revolving credit facility, amount outstanding Long-Term Line of Credit Guarantor obligations, carrying value Guarantor Obligations, Current Carrying Value Consolidated Entities [Axis] Consolidated Entities [Axis] Variable Rate [Domain] Variable Rate [Domain] Net loss attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Pay vs Performance Disclosure [Line Items] Entity Voluntary Filers Entity Voluntary Filers Rate to which the cost trend rate is assumed to decline (the ultimate trend rate), Pre 65 Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Pre 65 Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Pre 65 Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Interest Rate Swap 3 Interest Rate Swap 3 [Member] Interest Rate Swap 3 Unvested, beginning balance (in shares) Unvested, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Debt Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Employees’ capital accumulation plan, company-paid contributions Defined Contribution Plan, Employer Discretionary Contribution Amount Executive compensation -162(m) Effective Income Tax Rate Reconciliation, Nondeductible Expense, Executive Compensation Cost, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Executive Compensation Cost, Amount Revolving Credit Facility Revolving Credit Facility [Member] Impairment charge on intangibles Impairment of Intangible Assets, Finite-Lived MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Performance Shares Performance Shares [Member] Segment Reporting [Abstract] Segment Reporting [Abstract] State tax credits Deferred Tax Assets, Tax Credit Carryforwards, State Deferred Tax Assets, Tax Credit Carryforwards, State Computer equipment Computer Equipment [Member] Restatement Determination Date: Restatement Determination Date [Axis] Other Pension, Postretirement and Supplemental Plans Other Pension, Postretirement and Supplemental Plans [Member] Commitments and contingencies (Note 20) Commitments and Contingencies Proceeds from issuance of common stock Proceeds from Issuance of Common Stock $5.950% Senior Notes due 2033 5.95% Senior Notes due 2033 [Member] 5.95% Senior Notes due 2033 Geographical [Axis] Geographical [Axis] Income Taxes Income Tax Disclosure [Text Block] 2029 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Concentration Risk [Line Items] Concentration Risk [Line Items] Leases Lessee, Leases [Policy Text Block] Variable rate, floor Debt Instrument, Basis Spread on Variable Rate, Floor Debt Instrument, Basis Spread on Variable Rate, Floor Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Business Acquisition [Line Items] Business Acquisition [Line Items] Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] PEO Total Compensation Amount PEO Total Compensation Amount Hedging Relationship [Axis] Hedging Relationship [Axis] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Thereafter Long-Term Debt, Interest, Maturity, After Year Five Long-Term Debt, Interest, Maturity, After Year Five End of period (in shares) Treasury Stock, Common, Shares 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year One Stock options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Stock options exercised Stock Issued During Period, Value, Stock Options Exercised Secured Credit Facility Secured Credit Facility [Member] Secured Credit Facility Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Net income attributable to common stockholders Net income Net Income (Loss) Total current liabilities Liabilities, Current Derivative Contract [Domain] Derivative Contract [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Compensation Related Costs [Abstract] Compensation Related Costs [Abstract] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Stock options exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Amount of Gain Recognized in AOCI on Derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Cost of revenue Cost of Goods and Services Sold Stock option vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Useful life (in years) Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Name Measure Name Name Forgone Recovery, Individual Name Goodwill Goodwill Goodwill Increases in prior year position Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Underlying Securities Award Underlying Securities Amount Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Accounts receivable, net Increase (Decrease) in Accounts Receivable Fair Value, Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Operating lease liabilities, net of current portion Operating Lease, Liability, Noncurrent Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Income Statement Location [Axis] Income Statement Location [Axis] Less: Unamortized debt issuance costs and discount on debt Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Schedule of Future Minimum Operating Lease Payments Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Dilutive stock options and restricted stock (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Schedules of Lease Cost Lease, Cost [Table Text Block] Accounts receivable–unbilled (contract assets) Contract with Customer, Asset, after Allowance for Credit Loss, Current Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Term Loan A Term Loan A Term Loan A [Member] Term Loan A Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Plan Name [Domain] Plan Name [Domain] Current income tax receivable Income Taxes Receivable, Current Interest expense Total Interest Expense Interest Expense Unpaid property, equipment and software purchases Capital Expenditures Incurred but Not yet Paid Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Trading Arrangement: Trading Arrangement [Axis] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Schedule of Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Accounting Estimates Use of Estimates, Policy [Policy Text Block] Guarantor obligations, reduction to available borrowings Guarantor Obligations, Liquidation Proceeds, Monetary Amount Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number Total Defined Benefit Plan, Expected Future Benefit Payment Defined Benefit Plan, Expected Future Benefit Payment Loss Contingencies [Table] Loss Contingencies [Table] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Financial Standby Letter of Credit Financial Standby Letter of Credit [Member] 2027 Long-Term Debt, Maturity, Year Three Global Commercial Clients Global Commercial Clients [Member] Global Commercial Clients [Member] Income taxes receivable / payable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Auditor Firm ID Auditor Firm ID Amortization of intangible assets Amortization of Intangible Assets Entity Shell Company Entity Shell Company Revision of Prior Period, Adjustment Revision of Prior Period, Adjustment [Member] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Reduction to gross cost and accumulated depreciation for zero net book value assets Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment Restatement Determination Date Restatement Determination Date Increases in current year position Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Other current and long-term liabilities Increase (Decrease) in Other Operating Liabilities Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents––beginning of year Cash and cash equivalents––end of year Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Asset Class [Axis] Asset Class [Axis] Variable lease cost Variable Lease, Cost Operating lease cost Operating Lease, Cost Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Officer Medical Plan Officer Medical Plan [Member] Officer Medical Plan [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Interest Rate Swaps Interest Income (Expense), Debt, Interest Swap Interest Income (Expense), Debt, Interest Swap Treasury stock, at cost - 37,759,145 and 34,234,744 shares at March 31, 2024 and March 31, 2023, respectively Treasury Stock, Common, Value Total Long-Term Debt 2028 Long-Term Debt, Maturity, Year Four Employer matching contribution, percent of match (as a percent) Defined Contribution Plan, Employer Matching Contribution, Percent of Match Class A Common Stock Common Class A [Member] Performance period Weighted Average Remaining Period to be Recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Rate to which the cost trend rate is assumed to decline (the ultimate trend rate), Post 65 Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Post 65 Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Post 65 Comprehensive income attributable to common stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Expected Future Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Defined benefit plan, unfunded status of plan Defined Benefit Plan, Funded (Unfunded) Status of Plan Changes in uncertain tax positions (including indirect effects) Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Federal Domestic Tax Authority [Member] Short-term lease cost Short-Term Lease, Cost Interest payments Interest Paid, Including Capitalized Interest, Operating and Investing Activities Schedule of Assumed Health Care Cost Trend Rates Schedule of Health Care Cost Trend Rates [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One 2029 Long-Term Debt, Interest, Maturity, Year Five Long-Term Debt, Interest, Maturity, Year Five Subsequent Event [Table] Subsequent Event [Table] Claimed Indirect Costs Claimed Indirect Costs [Member] Claimed Indirect Costs Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Current income tax payable Taxes Payable, Current Richard Crowe [Member] Richard Crowe Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Remaining performance obligation (as per percent) Revenue, Remaining Performance Obligation, Percentage Subsequent Event Subsequent Event [Member] Income tax reserve, accrued penalties and interest Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Net operating losses Operating Loss Carryforwards Other current liabilities Other Liabilities, Current Income Statement [Abstract] Income Statement [Abstract] Initial accounting incomplete, adjustment, intangibles Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Issuance of common stock (in shares) Stock Issued During Period, Shares, New Issues Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Operating lease right-of-use assets Deferred Tax Liabilities, Operating Lease, Right-of-Use Asset Deferred Tax Liabilities, Operating Lease, Right-of-Use Asset Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Income tax expense computed at U.S. federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Number of directors Number Of Directors Number Of Directors Audit Information [Abstract] Audit Information [Abstract] Other long-term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Before Two Year Anniversary Before Two Year Anniversary [Member] Before Two Year Anniversary Total Shareholder Return Amount Total Shareholder Return Amount Repurchases of common stock Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Foreign Deferred Foreign Income Tax Expense (Benefit) Acquisitions and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] Long-term deferred compensation plan asset Deferred Compensation Plan Assets Senior Notes due 2029 Senior Notes due 2029 Senior Notes Due 2029 [Member] Senior Notes Due 2025 [Member] Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Retained earnings Retained Earnings (Accumulated Deficit) Face amount of debt Principal Debt Instrument, Face Amount Deferred income tax liabilities: Deferred Tax Liabilities, Net [Abstract] Current assets: Assets, Current [Abstract] Leases [Abstract] Leases [Abstract] 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] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Disposal Group Name [Domain] Disposal Group Name [Domain] Interest Rate Swap 2 Interest Rate Swap 2 [Member] Interest Rate Swap 2 Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Asset Class [Domain] Asset Class [Domain] Class of Stock [Domain] Class of Stock [Domain] Customer [Domain] Customer [Domain] Pension and postretirement benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits Revolving Commitments Revolving Commitments [Member] Revolving Commitments Total lease liabilities Operating Lease, Liability Income tax reserves Liability for Uncertainty in Income Taxes, Noncurrent SOFR Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Accumulated Other Comprehensive Income (Loss) Total AOCI Attributable to Parent [Member] Prepaid expenses and other current and long-term assets Increase (Decrease) in Prepaid Expense and Other Assets 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] Decrease in reserve Loss Contingency Accrual, Period Increase (Decrease) Employees’ capital accumulation plan, total expense recognized Defined Contribution Plan, Cost All Executive Categories All Executive Categories [Member] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Bonus Accrued Bonuses, Current Senior Notes due 2028 3.875% Senior Notes due 2028 Senior Notes Due 2028 [Member] Senior Notes Due 2028 Post-retirement plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Plan Name [Axis] Plan Name [Axis] Accounts Payable and Other Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Number of reportable segments Number of Reportable Segments Earnings per share of common stock (Note 4): Earnings per common share: Earnings Per Share [Abstract] U.S. Department of Justice U.S. Department of Justice [Member] U.S. Department of Justice Common stock, Class A - $0.01 par value - 600,000,000 shares authorized; 167,402,268 shares and 165,872,332 shares issued at March 31, 2024 and March 31, 2023, respectively; 129,643,123 shares and 131,637,588 shares outstanding at March 31, 2024 and March 31, 2023, respectively Common Stock, Value, Issued Redemption price (as a percent) Debt Instrument, Redemption Price, Percentage Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Trade name Trade Names [Member] Senior Notes Senior Notes [Member] Programs and contract assets, channel relationships, and other amortizable intangible assets Programs And Contract Assets, Channel Relationships, And Other [Member] Programs And Contract Assets, Channel Relationships, And Other Research and development expenditures and indirect effects Deferred Tax Assets, Research And Development Expenditures And Indirect Effects Deferred Tax Assets, Research And Development Expenditures And Indirect Effects Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] After Two Year But Before Five Year Anniversary After Two Year But Before Five Year Anniversary [Member] After Two Year But Before Five Year Anniversary Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Total accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] All Individuals All Individuals [Member] Litigation Case [Domain] Litigation Case [Domain] Other income, net Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Share repurchase program, amount authorized Stock Repurchase Program, Authorized Amount Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Vendor payables Accounts Payable, Trade, Current Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Beginning of year End of year Unrecognized Tax Benefits Income Tax Authority [Axis] Income Tax Authority [Axis] Civil Clients Civil Clients [Member] Civil Clients [Member] PEO Name PEO Name Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Base Rate Base Rate [Member] 2030 - 2034 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Amount of Gain (Loss) Reclassified from AOCI into Income Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Business Overview Nature of Operations [Text Block] Amount awarded to other party Litigation Settlement, Amount Awarded to Other Party Percentage of principal amount outstanding (as a percent) Debt Instrument, Redemption Price, Percentage Of Principal Amount Outstanding Debt Instrument, Redemption Price, Percentage Of Principal Amount Outstanding Debt instrument (as a percent) Interest Rate Debt Instrument, Interest Rate, Stated Percentage Accounts payable and other accrued expenses Total accounts payable and other accrued expenses Accounts Payable and Accrued Liabilities, Current Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Gain on disposition of business Gain (Loss) on Disposition of Business Total stockholders’ equity Equity, Attributable to Parent Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Stock issued upon conversion (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Issued Upon Conversion Share-Based Compensation Arrangement By Share-Based Payment Award, Shares Issued Upon Conversion Guarantor obligations, available amount Guarantor Obligations, Available Amount Guarantor Obligations, Available Amount Restricted Stock and Other Awards Restricted Stock [Member] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Long-term debt, gross Long-Term Debt, Gross [Abstract] Long-Term Debt, Gross Revision of Prior Period [Domain] Revision of Prior Period [Domain] Subsequent Events [Abstract] Subsequent Events [Abstract] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Operating lease liabilities Deferred Tax Assets, Operating Lease, Liability Deferred Tax Assets, Operating Lease, Liability Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] 2027 Long-Term Debt, Including Interest, Maturity, Year Three Long-Term Debt, Including Interest, Maturity, Year Three Hedging Designation [Domain] Hedging Designation [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Purchases of property, equipment, and software Payments to Acquire Productive Assets Disposal Group Classification [Domain] Disposal Group Classification [Domain] Interest Rate Debt Instrument, Interest Rate, Effective Percentage 2026 Long-Term Debt, Interest, Maturity, Year Two Long-Term Debt, Interest, Maturity, Year Two Total fair value of identifiable net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Cost-reimbursable Cost Reimbursable Contract [Member] Cost Reimbursable Contract Document Fiscal Period Focus Document Fiscal Period Focus Finite-lived intangible asset, useful life (in years) Finite-Lived Intangible Asset, Useful Life 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four Schedule of Change in Fair Value of Plan Assets Schedule of Changes in Fair Value of Plan Assets [Table Text Block] Outstanding, weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Restricted Stock and Other Awards Annual Incentive Plan [Member] Annual Incentive Plan [Member] Foreign Foreign Tax Authority [Member] City Area Code City Area Code Earnings Per Share Earnings Per Share [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus 2025 Long-Term Debt, Including Interest, Maturity, Year One Long-Term Debt, Including Interest, Maturity, Year One Geographical [Domain] Geographical [Domain] Billable expenses Billable Expenses Billable expenses include direct subcontractor expenses, travel expenses, and other expenses incurred to perform on contracts. Exercise Price Award Exercise Price Outstanding, weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Decreases in prior year position Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Term Loan B Term Loan B [Member] Term Loan B Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Income taxes Income Taxes Paid, Net Schedule of Stock-based Compensation Expense Recognized in the Condensed Consolidated Statements of Operations Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Other long-term assets Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Unvested shares participating in the payment of the company's dividends declared (in shares) Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Current assets: Contract with Customer, Asset, after Allowance for Credit Loss [Abstract] Officer Officer [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Foreign Current Foreign Tax Expense (Benefit) Earnings for basic computations Undistributed Earnings, Basic Arrangement Duration Trading Arrangement Duration Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Defense Clients Defense Clients [Member] Defense Clients [Member] Research and development and other federal credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Share repurchase program, remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Termination Date Trading Arrangement Termination Date Derivative asset Derivative Instruments in Hedges, Assets, at Fair Value Common stock, authorized (in shares) Common Stock, Shares Authorized Retirement Liability, Pension and Other Postretirement and Postemployment Benefits, Current Senior Notes due 2033 Five Point Nine Five Percent Senior Unsecured Notes Due 2033 [Member] Five Point Nine Five Percent Senior Unsecured Notes Due 2033 Equity securities gain (loss) Equity Securities, FV-NI, Gain (Loss) Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite-Lived Intangible Assets [Axis] Total Assets Other Assets, Fair Value Disclosure Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Thereafter Long-Term Debt, Including Interest, Maturity, After Year Five Long-Term Debt, Including Interest, Maturity, After Year Five Estimated amounts to be reclassified over 12 months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Reclassification from AOCI, current period, tax Reclassification from AOCI, Current Period, Tax Derivative [Line Items] Derivative [Line Items] Award Timing Disclosures [Line Items] Title of Individual [Domain] Title of Individual [Domain] Comprehensive loss attributable to non-controlling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Aggregate fair value of all awards issued Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Income Taxes Income Tax, Policy [Policy Text Block] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Three Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Insider Trading Arrangements [Line Items] Related Party [Axis] Related Party, Type [Axis] Overnight Federal Funds Rate Overnight Federal Funds Rate [Member] Overnight Federal Funds Rate Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Two Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract] Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] Performance period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Performance Period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Performance Period Schedule of Unrecognized Compensation Cost Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Cost of revenue Cost of Sales [Member] Auditor Name Auditor Name Proceeds from revolving credit facility Proceeds from Lines of Credit Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Disposal Group Name [Axis] Disposal Group Name [Axis] Entity Central Index Key Entity Central Index Key Amortization of Debt Issuance Cost (DIC) and Original Issue Discount (OID) Amortization of Debt Issuance Costs and Discounts Liabilities: Liabilities, Fair Value Disclosure [Abstract] Stock-based compensation expense Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross Carrying Value Finite-Lived Intangible Assets, Gross Income Tax Authority [Domain] Income Tax Authority [Domain] Accrued compensation and benefits Total accrued compensation and benefits Employee-related Liabilities, Current Revenue Benchmark Revenue Benchmark [Member] Name Trading Arrangement, Individual Name Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Issuance of common stock Stock Issued During Period, Value, New Issues Foreign income taxes, net of federal tax Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Revenue Revenue from Contract with Customer, Excluding Assessed Tax Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Finite-Lived Intangible Assets, Net [Abstract] Finite-Lived Intangible Assets, Net [Abstract] Tax Period [Domain] Tax Period [Domain] Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Assets: Assets, Fair Value Disclosure [Abstract] Period Four Debt Instrument, Redemption, Period Four [Member] Business Combinations Business Combinations Policy [Policy Text Block] Long-term debt, net of current portion Long-term debt, net of current portion Long-Term Debt, Excluding Current Maturities Leasehold improvements Leasehold Improvements [Member] Weighted-average common stock shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Company Selected Measure Amount Company Selected Measure Amount 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Stock-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition 2029 Long-Term Debt, Maturity, Year Five Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Derivative liability Derivative Instruments in Hedges, Liabilities, at Fair Value Time-and-materials Time-and-Materials Contract [Member] Treasury Rate US Treasury (UST) Interest Rate [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Equity securities, fair value Equity Securities, FV-NI, Cost Debt Instrument [Line Items] Debt Instrument [Line Items] Weighted-average common stock shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Reclassification Reclassification, Comparability Adjustment [Policy Text Block] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Period Two Debt Instrument, Redemption, Period Two [Member] Guarantor obligations, facility Guarantor Obligations, Facility Guarantor Obligations, Facility Related Party Transaction [Axis] Related Party Transaction [Axis] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Concentration Risk [Table] Concentration Risk [Table] Foreign-Derived Intangible Income (FDII) Effective Income Tax Rate Reconciliation, FDII, Amount Intangible assets Deferred Tax Liabilities, Intangible Assets Schedule of Effect of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Schedule of Debt Schedule of Debt [Table Text Block] Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Shares authorized to be repurchased (in shares) Stock Repurchase Program, Number of Shares Authorized to be Repurchased Non-Controlling Interest Noncontrolling Interest [Member] Accounting Standards Update 2016-13 [Member]