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Inventories, Net (Details) - Inventories - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Finished goods $ 73,027 $ 76,512
Work in process 14,719 8,905
Raw materials and supplies 87,047 99,899
Inventory, Net $ 174,793 $ 185,316