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Accounts Receivable and Contract Assets, Net (Details) - USD ($)
$ in Thousands
Mar. 28, 2025
Dec. 27, 2024
Dec. 29, 2023
Receivables, Net, Current [Abstract]      
Accounts receivable $ 39,259 $ 35,926 $ 35,600
Contract assets (unbilled revenue) 26,110 23,530 $ 17,500
Allowance for doubtful accounts (2,814) (2,377)  
Accounts receivable and contract assets, net $ 62,555 $ 57,079