Inventory (Schedule of Inventory) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventory Write-down	$ 4,300	$ 1,700
Raw materials	85,180		$ 59,151
Work in process	157,921		132,068
Finished goods	14,231		11,197
Deferred costs	45,962		36,162
Total Inventories	$ 303,294		$ 238,578