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Leases - Summary of Balances Related to Lease Portfolio within Consolidated Statement of Cash Flow, Textual (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 29, 2019
Dec. 30, 2018
Leases [Abstract]      
Principal payments on capital lease obligations $ 5,861 $ 8,656 $ 8,100
Interest payments on capital lease obligations $ 1,728 $ 2,714 $ 3,300