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Contracts with Customers - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation Of Revenue [Line Items]
Revenues	$ 1,554,360	$ 1,535,676
Fixed-Price
Disaggregation Of Revenue [Line Items]
Revenues	574,573	631,219
Time-and-Materials
Disaggregation Of Revenue [Line Items]
Revenues	347,090	350,651
Cost-Plus
Disaggregation Of Revenue [Line Items]
Revenues	$ 632,697	$ 553,806

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