Quarterly report pursuant to Section 13 or 15(d)

Inventories - Schedule of Inventories (Details)

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Inventories - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 89,556 $ 62,967
Work-in-process 5,126 8,291
Total $ 94,682 $ 71,258