Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Jun. 28, 2024	Dec. 29, 2023
Accounts Notes And Loans Receivable [Line Items]
Allowance for contract losses and doubtful accounts	$ (6,161)	$ (5,281)
Total accounts receivable, net	165,870	167,360
Billed accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	117,977	128,052
Unbilled accounts receivable
Accounts Notes And Loans Receivable [Line Items]
Accounts Receivable	$ 54,054	$ 44,589