Inventory (Schedule of Inventory) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventory Write-down	$ 2,000	$ 6,400	$ 6,300	$ 8,100
Raw materials	73,971		73,971		$ 59,151
Work in process	165,869		165,869		132,068
Finished goods	14,421		14,421		11,197
Deferred costs	61,812		61,812		36,162
Total Inventories	$ 316,073		$ 316,073		$ 238,578