Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Customer [Axis] Customer [Axis] Segment Reporting [Abstract] Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Common stock Common Stock, Value, Issued Accrued payroll and employee benefits Employee-related Liabilities, Current Long-term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Revolving Credit Facility Due September Two Thousand Thirty Revolving Credit Facility Due September Two Thousand Thirty [Member] Revolving Credit Facility Due September Two Thousand Thirty Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Current liabilities: Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Receivables Billing Status [Domain] Receivables Billing Status [Domain] Recovery of acquisition and integration costs and restructuring and impairment costs Other Depreciation and Amortization Amortization of intangible assets Amortization Diluted EPS impact (in dollars per share) Increase Decrease In Income From Change In Contract Estimates Per Diluted Share Increase (decrease) in income from change in contract estimates per diluted share. Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Sale of receivables TransferOfFinancialAssetsAccountedForAsSalesReceivablesSoldDuringPeriod TransferOfFinancialAssetsAccountedForAsSalesReceivablesSoldDuringPeriod Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Remaining performance obligation Revenue, Remaining Performance Obligation, Amount1 Revenue, Remaining Performance Obligation, Amount1 Share Repurchase Program [Domain] Share Repurchase Program [Domain] Basic weighted-average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Contract with customer, performance obligation satisfied in previous period Contract with Customer, Performance Obligation Satisfied in Previous Period Operating Cycle Construction Contractor, Operating Cycle [Policy Text Block] Customer relationships Customer Relationships [Member] Increase to cash flows from operating activities Transfer of Financial Assets Account For As Sales, Increase (Decrease) In Cash Flows From Operating Activities Transfer of Financial Assets Account For As Sales, Increase (Decrease) In Cash Flows From Operating Activities Entity Address, City or Town Entity Address, City or Town Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Unbilled Revenues Unbilled Revenues [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Intangible assets, net Net carrying value Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Subcontractor to federal government Subcontractor [Member] Subcontractor [Member] Accumulated amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Total other comprehensive (loss) income, net of tax Other comprehensive income (loss), net of tax Net other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Debt, current portion Less current portion Long-Term Debt, Current Maturities Subsequent Event Type [Axis] Subsequent Event Type [Axis] Net unrealized (loss) gain on derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Accounting Standards Updates New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Segment Reporting Segment Reporting [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Change in Estimates and Disaggregation of Revenues Revenue from Contract with Customer [Policy Text Block] Repayments under the Revolving Credit Facility Repayments of Lines of Credit Unrealized Gains (Losses) on Fixed Interest Rate Swap Cash Flow Hedges Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Net Long-Term Debt Contract assets - unbillable receivables Contract With Customer, Asset, Receivables, Net Contract With Customer, Asset, Receivables, Net Document Period End Date Document Period End Date Increase (decrease) resulting from changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Security Exchange Name Security Exchange Name Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Other Other Contractor [Member] Other Contractor [Member] Cash collections TransfersOfFinancialAssetsAccountedForAsSalesCashCollected TransfersOfFinancialAssetsAccountedForAsSalesCashCollected Reporting Periods Fiscal Period, Policy [Policy Text Block] Purchases of marketable securities Payments to Acquire Marketable Securities Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Investments in Equity Securities, Policy Investments in Equity Securities, Policy [Policy Text Block] Investments in Equity Securities, Policy Billed and billable receivables, net Billed Contracts Receivable Segment Reporting Segment Reporting, Policy [Policy Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings Per Share, Share Repurchases and Dividends Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Sales of marketable securities Proceeds from Sale and Maturity of Marketable Securities Earnings per share: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Reconciliation of Weighted Average Number of Shares Outstanding Used to Compute Basic and Diluted EPS Schedule of Weighted Average Number of Shares [Table Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments and contingencies. Trading Symbol Trading Symbol Expenditures for property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Reconciliation of Cash, Cash Equivalents and Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Defined Benefit Obligation Adjustment(1) Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Principal Long-Term Debt, Gross Operating lease assets and liabilities, net IncreaseDecreaseInOperatingLeaseAssetsandLiabilitiesNet IncreaseDecreaseInOperatingLeaseAssetsandLiabilitiesNet Billed Revenues Billed Revenues [Member] Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted-average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cash dividends paid per share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Lines of credit borrowed and repaid Proceeds from Lines of Credit Deferred income taxes Deferred Income Taxes and Tax Credits Prepaid expenses Prepaid Expense Outstanding obligations Guarantor Obligations, Current Carrying Value Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Basic EPS impact (in dollars per share) Increase Decrease In Income From Change In Contract Estimates Per Basic Share Increase Decrease In Income From Change In Contract Estimates Per Basic Share Contractor [Domain] Contractor [Domain] [Domain] for Contractor [Axis] Award Timing Predetermined Award Timing Predetermined [Flag] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] The Credit Facility The Credit Facility [Member] The Credit Facility Restricted cash included in other current assets Restricted Cash Equivalent, Current Stock-based compensation, net of shares withheld for taxes APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Income before income taxes Income Before Income Taxes Income Before Income Taxes Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Civilian Civilian [Member] Civilian Dilutive common share equivalents - stock options and other stock-based awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Repurchases of stock Stock Repurchased and Retired During Period, Value Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Depreciation of property, plant, and equipment Depreciation Sales of Receivables TransfersOfFinancialAssetsAccountedForAsSalesMarpa [Text Block] TransfersOfFinancialAssetsAccountedForAsSalesMarpa [Text Block] Beginning balance Outstanding balance sold to Purchaser TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding Operating lease right of use assets Operating Lease, Right-of-Use Asset AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Earnings Per Share [Table] Earnings Per Share [Table] Earnings per share. Unamortized debt issuance costs, current portion Debt Issuance Costs, Current, Net Stock Repurchase Plan Stock Repurchase Plan [Member] Stock Repurchase Plan Principal amount of long-term debt, net of current portion Debt Instrument Non Current Carrying Amount Debt instrument non current carrying amount. Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Segments Information Segment Reporting [Text Block] Dividend payments to stockholders Payments of Ordinary Dividends, Common Stock Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Four Finite-Lived Intangible Asset, Expected Amortization, after Year Four Expiration Date Trading Arrangement Expiration Date Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation 2031 Long-Term Debt, Maturity, Year Four Cash acquired Cash Acquired in Excess of Payments to Acquire Business Intelligence and other federal government agencies Other Federal Government Agencies [Member] Other Federal Government Agencies [Member] Shares repurchased under the repurchase plan (in shares) Stock Repurchased And Retired Under Authorization Stock Repurchased And Retired Under Authorization Disaggregated Revenues Disaggregation of Revenue [Table Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Beginning Balance Ending Balance Equity, Including Portion Attributable to Noncontrolling Interest Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Business Combination [Line Items] Business Combination [Line Items] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Issuances of stock Proceeds from Issuance of Common Stock Net favorable (unfavorable) adjustments Increase Decrease In Income From Change In Contract Estimates Increase (decrease) in income from change in contract estimates. Common stock, shares authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price Amount paid for repurchased common stock Share Repurchase Program, Authorized, Amount Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Debt Obligations Debt Disclosure [Text Block] Principal payments Repayments of Long-Term Debt Unamortized debt issuance costs Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Backlog Backlog [Member] Backlog Next 24 Months Next 24 Months [Member] Next 24 Months Adoption Date Trading Arrangement Adoption Date Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments and contingencies. Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Cash dividends Dividends, Common Stock, Cash Total stockholders' equity Equity, Attributable to Parent Defense and Intelligence Defense And Intelligence [Member] Defense And Intelligence ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Commercial, state and local governments and international Commercial, State, And Local Agencies [Member] Commercial, State, And Local [Member] Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Selling, general and administrative expenses Selling, General and Administrative Expense Principal payments on borrowings Repayments of Debt Business Combination [Domain] Business Combination [Domain] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Thereafter Long-Term Debt, Maturity, after Year Four Long-Term Debt, Maturity, after Year Four Other Cost and Expense (Income), Operating Other Cost and Expense (Income), Operating Other Cost and Expense (Income), Operating Antidilutive stock options excluded (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of operating segments Number of Operating Segments Goodwill Goodwill [Table Text Block] Other current assets Inventory, Prepaid Expenses, And Other Current Assets Inventory, Prepaid Expenses, And Other Current Assets Entity Central Index Key Entity Central Index Key Unamortized debt issuance costs, total long-term debt, net of current portion Debt Issuance Costs, Noncurrent, Net Property, plant and equipment, accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Legal Proceedings and Other Commitments and Contingencies Legal Matters and Contingencies [Text Block] 2027 Long-Term Debt, Maturity, Remainder of Fiscal Year Equity: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Adjusted operating income (loss) Adjusted operating income (loss) Adjusted Operating Income (Loss) Adjusted Operating Income (Loss) Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] Proceeds from borrowings Proceeds from (Repayments of) Debt City Area Code City Area Code Accumulated other comprehensive income (loss) AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Corporate Segment Corporate Segment [Member] Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Proceeds from Sale of Other Investments Proceeds from Sale of Other Investments Statement [Line Items] Statement [Line Items] Total assets Assets Business Combination [Abstract] Business Combination [Abstract] Interest expense, net Interest Expense, Operating Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Issuances of stock (in shares) Stock Issued During Period, Shares, New Issues Accounts payable Accounts Payable and Other Accrued Liabilities, Current PEO PEO [Member] 2029 Long-Term Debt, Maturity, Year Two Repurchases of stock (in shares) Stock Repurchased and Retired During Period, Shares Other long-term liabilities Other Liabilities, Noncurrent Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Existing Stock Repurchase Plan Existing Stock Repurchase Plan [Member] Existing Stock Repurchase Plan Revenue recognized Contract with Customer, Liability, Revenue Recognized Subsequent Event Type [Domain] Subsequent Event Type [Domain] Retained earnings Retained Earnings [Member] Operating lease liabilities Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Remaining performance obligation percentage Revenue, Remaining Performance Obligation, Percentage 1 Revenue, Remaining Performance Obligation, Percentage 1 Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Balance, beginning (in shares) Balance, ending (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Diluted (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Accrued payroll and employee benefits Increase (Decrease) in Employee Related Liabilities Amortization of intangible assets Intangible Asset, Finite-Lived, Amortization Expense Contractor [Axis] Contractor [Axis] Contractor [Axis] Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Remaining sold receivables(3) TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables 2030 Long-Term Debt, Maturity, Year Three Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Total revenues Revenue from Contract with Customer, Excluding Assessed Tax Property, plant, and equipment (net of accumulated depreciation of $221 million and $215 million at May 1, 2026 and January 30, 2026, respectively) Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Surety Bonds Surety Bond [Member] Defined benefit obligation adjustment Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Goodwill and Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Revenues Revenue from Contract with Customer [Text Block] Issuances of stock Stock Issued During Period, Value, New Issues Contributions to investments Payment for (Proceeds from) Other Investing Activity Term Loan A Facility due September 2030 Term Loan A Facility Due September Two Thousand Thirty [Member] Term Loan A Facility Due September Two Thousand Thirty Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Acquisitions Business Combination [Text Block] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Cash dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Department of War Department Of Defense [Member] Department Of Defense [Member] Summary of Transfers of Financial Assets Accounted for as Sales Transfers Of Financial Assets Accounted For As Sales, Marpa [Table Text Block] Transfers Of Financial Assets Accounted For As Sales, Marpa [Table Text Block] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Changes in Accumulated Other Comprehensive Income (Loss) by Component Comprehensive Income (Loss) Note [Text Block] Equity Components Equity Components [Axis] Receivables Increase (Decrease) in Accounts Receivable Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Shares withheld for taxes Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Senior Notes due November 2033 Senior Notes Due November Two Thousand Thirty Three [Member] Senior Notes Due November Two Thousand Thirty Three Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Term Loan B3 Facility Due February 2031 Term Loan B3 Facility Due February 2031 [Member] Term Loan B3 Facility Due February 2031 MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other assets Other Assets, Noncurrent Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Document Type Document Type Preliminary purchase price Payments to Acquire Businesses, Net of Cash Acquired Firm-fixed price ("FFP") Fixed-Price Contract [Member] Fair Value as of Grant Date Award Grant Date Fair Value Goodwill [Table] Goodwill [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Contract liabilities - non-current Contract with Customer, Liability, Noncurrent Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Prime contractor to federal government Prime Contractor [Member] Prime Contractor [Member] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Letters of Credit Financial Standby Letter of Credit [Member] Commitments and contingencies (Note 11) Commitments and Contingencies Gross carrying value Intangible Asset, Finite-Lived, before Accumulated Amortization Revenues Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Accounts payable and other accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Net favorable (unfavorable) adjustments, after tax Increase Decrease In Income From Change In Contract Estimates Net Of Tax Increase (decrease) in income from change in contract estimates net of tax. Income tax impact Other Comprehensive Income (Loss), Tax LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Computation Of Earnings Per Share [Line Items] Computation Of Earnings Per Share [Line Items] Computation of earnings per share. PEO Name PEO Name Billing Status, Type [Axis] Billing Status, Type [Axis] Senior Notes due April 2028 Senior Notes Due April Two Thousand Twenty Eight [Member] Senior Notes Due April Two Thousand Twenty Eight [Member] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Other accrued liabilities Other Accrued Liabilities, Current Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Debt Instrument [Axis] Debt Instrument [Axis] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Labor base Labor and Related Expense 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Employee Stock Employee Stock [Member] Customer [Domain] Customer [Domain] 2028 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) Earnings Per Share, Basic Contract liabilities - current Contract with Customer, Liability, Current Stock repurchased and retired or withheld for taxes on equity awards Authorized repurchase amount of common stock Payments for Repurchase of Common Stock Acquisition, integration, restructuring and impairment costs Business Combination Acquisition, Integration, Restructuring And Impairment Related Costs This element represents acquisition-related, integration, restructuring and impairment related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; including costs of registering and issuing debt and equity securities; business integration costs, systems integration and conversion costs, and severance and other employee-related costs. Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Debt, net of current portion Total long-term debt, net of current portion Long-Term Debt, Excluding Current Maturities Cost of revenues Cost of Revenue Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Receivables, net Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Shares of common stock Common Stock [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Business Overview and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover [Abstract] Cash collected, not remitted to Purchaser TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and stockholders' equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Costs related to the settlement of federal tax audits Settlement Costs Related To Federal Tax Audits Settlement Costs Related To Federal Tax Audits Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date1 [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date1 [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date1 [Domain] Tabular List, Table Tabular List [Table Text Block] Restricted cash included in other assets Restricted Cash and Cash Equivalent, Noncurrent Other assets and other long-term liabilities, net Increase (Decrease) in Other Noncurrent Liabilities Other (income) expense, net Other (income) expense, net Other Nonoperating Income (Expense) 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Other operating (income) expense Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Term Loan B3 Facility due February 2031 Term Loan B3 Facility Due February Two Thousand Thirty One [Member] Term Loan B3 Facility Due February Two Thousand Thirty One SilverEdge Government Solutions SilverEdge Government Solutions [Member] SilverEdge Government Solutions Adjustment to Compensation: Adjustment to Compensation [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Gain on Sale of Investments Gain on Sale of Investments Operating cycle (greater than) Contract Operating Cycle Contract Operating Cycle Credit Facility [Axis] 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