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Contracts with Customers - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation Of Revenue [Line Items]
Revenues	$ 1,584,323	$ 1,670,467	$ 3,138,683	$ 3,206,143
Fixed-Price
Disaggregation Of Revenue [Line Items]
Revenues	532,135	707,235	1,106,708	1,338,454
Time-and-Materials
Disaggregation Of Revenue [Line Items]
Revenues	372,945	347,275	720,035	697,926
Cost-Plus
Disaggregation Of Revenue [Line Items]
Revenues	$ 679,243	$ 615,957	$ 1,311,940	$ 1,169,763

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