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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 35,395 $ 34,169
Work in process 12,536 12,864
Finished goods 72,636 74,123
Inventories, net $ 120,567 $ 121,156