Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 30, 2022
Accounts Notes And Loans Receivable [Line Items]
Allowance for contract losses and doubtful accounts	$ (6,109)	$ (6,193)
Total accounts receivable, net	175,830	170,114
Billed accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	128,741	120,212
Unbilled accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	$ 53,198	$ 56,095