Quarterly report pursuant to Section 13 or 15(d)

Inventories - Summary of Inventories (Detail)

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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Apr. 01, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Finished Goods $ 29,095 $ 28,792
Work in Progress 27,723 20,790
Raw Material 65,366 67,015
Inventory, net $ 122,184 $ 116,597