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Inventories - Components of Inventory (Detail) - USD ($)
$ in Thousands
Dec. 30, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 31,200 $ 32,647
Work-in-process 8,619 7,701
Finished goods 56,125 32,194
Total $ 95,944 $ 72,542