Taxes (Schedule of Components of Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 0	$ 0	$ 0
State	3	25	(647)
Total current	3	25	(647)
Deferred:
Federal	(329,393)	18,535	(318,956)
State	(43,990)	7,074	(15,895)
Total deferred	(373,383)	25,609	(334,851)
Provision for (benefit from) income taxes	$ (373,380)	$ 25,634	$ (335,498)