Basis Of Presentation And New Accounting Standards (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to net revenue	$ (166,016)	$ (305,587)	$ (355,657)	$ (559,159)
Increase to net loss	2,635	$ (57,782)	$ (17,007)	$ (111,501)
Scenario, Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to net revenue	2,500
Increase to net loss	$ 1,700