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Inventories - Schedule of Inventory Current (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Finished goods $ 59,403 $ 66,930
Work-in-progress 50,881 45,408
Raw materials 101,128 81,145
Total $ 211,412 $ 193,483