Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Allowance for contract losses and doubtful accounts	$ (6,157)	$ (4,423)
Total accounts receivable, net	166,014	139,861
Billed accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	110,428	102,028
Unbilled accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	$ 61,743	$ 42,256