Segment Information (Reconciliation Statement Of Segment Income from Operations To Consolidated Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting [Abstract]
Loss from operations	$ (36,279)	$ (596,893)	$ (87,710)	$ (569,096)
Interest expense	(94,756)	(78,728)	(189,830)	(153,500)
Interest and investment income	1,216	1,088	4,052	2,109
Other nonoperating expenses		(19,042)		(19,042)
Loss from continuing operations before income taxes	$ (129,819)	$ (693,575)	$ (273,488)	$ (739,529)