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Period, Weighted Average Grant Date Fair Value Income tax (benefit) expense Income Tax Expense (Benefit) Deferred tax liabilities Business Combination, Recognized Liability Assumed, Deferred Tax Liability Time and materials Time-and-Materials Contract [Member] Statement [Table] Statement [Table] Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Proceeds from exercise of options Proceeds from Stock Options Exercised 2026 ATM Program 2026 ATM Program [Member] 2026 ATM Program Schedule of remaining performance obligation Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Issuance of common stock upon conversion of 2029 Notes Debt Conversion, Converted Instrument, Amount Non-U.S. government and commercial Non United States Government And Commercial [Member] Non United States Government And Commercial Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Non-employee Director Non-employee Director [Member] Non-employee Director Discount rate for goodwill impairment test Goodwill Impairment Test, Discount Rate Goodwill Impairment Test, Discount Rate Treasury stock, shares, retired (in shares) Treasury Stock, Shares, Retired Recoveries Accounts Receivable, Allowance for Credit Loss, Recovery Prepaid expenses and other current assets Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Derivative Instruments and Hedging Activities Disclosure [Abstract]