Inventories (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Inventory, Net [Abstract]
Raw materials	$ 394,349	$ 361,880
Work in progress	174,397	145,789
Finished Goods	453,540	400,281
Subtotal	1,022,286	907,950
Inventory reserves	(131,680)	(130,120)
Total	$ 890,606	$ 777,830