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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 45,507 $ 34,169
Work in process 20,128 12,864
Finished goods 74,205 74,123
Inventories, net $ 139,840 $ 121,156