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Inventories - Components of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 26, 2021
Dec. 26, 2020
Current inventory:    
Raw materials $ 106,365 $ 69,272
Work in process 18,848 16,846
Finished goods 122,337 44,792
Total current inventory 247,550 130,910
Long term inventory 13,674 9,639
Total inventory $ 261,224 $ 140,549