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Inventories - Inventories (Detail) - USD ($)
$ in Thousands
Mar. 27, 2021
Dec. 26, 2020
Inventory Disclosure [Abstract]    
Bulk product $ 149,816 $ 136,726
Finished product 182,892 157,484
Packaging materials 4,989 4,509
Total $ 337,697 $ 298,719