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Accounts Receivable, Net - Reconciliation of Beginning and Ending Amount of Allowance for Contract Losses and Doubtful Accounts (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jul. 02, 2021
Jul. 03, 2020
Receivables [Abstract]    
Balance at January 1, 2021 $ 3,995  
Provision for contract losses and doubtful accounts 932 $ 2,817
Write-offs (282)  
Balance at July 2, 2021 $ 4,645