v3.25.4
Contracts with Customers - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Revenue recognized included contract liability $ 193,600,000 $ 190,300,000  
Impairment of contract assets 0 $ 0  
Impact of changes in estimated claims or incentives on revenue 5,000,000    
Remaining unsatisfied performance obligations $ 7,100,000,000    
U.S. Federal Government and Agencies      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Receivables from contracts rate 19.00% 23.00%  
Federal Solutions | Direct Costs Write-Down      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Increase (decrease) in direct costs of contracts $ 22,700,000    
Critical Infrastructure | Direct Costs Write-Down      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Increase (decrease) in direct costs of contracts   $ 6,300,000 $ 8,000,000
Critical Infrastructure | Legal Matter      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]      
Increase (decrease) in direct costs of contracts     $ 37,900,000