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Revenue - Summary of Current and Noncurrent Contract Liabilities from Contracts with Customers (Detail)
$ in Thousands
12 Months Ended
Dec. 27, 2020
USD ($)
Revenue From Contract With Customer [Abstract]  
Beginning balance of current contract liability $ (1,594)
Ending balance of current contract liability (3,138)
Increase (decrease) in contract liability 1,544
Beginning balance of noncurrent contract liability (2,054)
Ending balance of noncurrent contract liability (1,707)
Increase (decrease) in contract liability $ (347)