Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Inventory, Net [Abstract]
Raw materials	$ 354,170	$ 333,551
Work in progress	154,841	135,624
Finished Goods	436,755	443,032
Subtotal	945,766	912,207
Inventory reserves	(111,859)	(109,312)
Total	$ 833,907	$ 802,895