XML 48 R38.htm IDEA: XBRL DOCUMENT v3.22.1
Revenue - Revenue by Contract Type (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2022
Apr. 02, 2021
Disaggregation of Revenue [Line Items]    
Total revenue $ 456,471 $ 434,004
Cost-plus and cost-reimbursable    
Disaggregation of Revenue [Line Items]    
Total revenue $ 311,094 290,230
Revenue, percent change 7.20%  
Firm-fixed-price    
Disaggregation of Revenue [Line Items]    
Total revenue $ 128,004 128,757
Revenue, percent change (0.60%)  
Time and material    
Disaggregation of Revenue [Line Items]    
Total revenue $ 17,373 $ 15,017
Revenue, percent change 15.70%