Receivables, Contract Liabilities and Performance Obligations - Gross Contract Assets by Internal Risk Ratings (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	$ 241,193	$ 272,287
Low risk
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	37,309
Moderate risk
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	60,218
High risk
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	$ 143,666