Inventory (Schedule of Inventory) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventory Write-down	$ 1,800	$ 1,600	$ 9,900	$ 3,500
Raw materials	34,983		34,983		$ 10,923
Work in process	110,616		110,616		73,519
Finished goods	12,513		12,513		10,768
Deferred costs	32,556		32,556		33,651
Total Inventories	$ 190,668		$ 190,668		$ 128,861