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Inventories - Components of Inventory (Detail) - USD ($)
$ in Thousands
Dec. 29, 2018
Dec. 30, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 38,955 $ 31,200
Work-in-process 9,036 8,619
Finished goods 45,760 52,440
Total $ 93,751 $ 92,259