Income Taxes (Schedule Of Components Of Current And Deferred Income Tax Benefit From Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Current, Federal								$ (2,006)
Current, State						(4,071)	(9)	(65)
Total current (benefit)						(4,071)	(9)	(2,071)
Deferred, Federal						(20,423)
Deferred, State						(2,294)
Total deferred (benefit)						(22,717)
Total income tax benefit	$ (7,733)	$ (6,245)	$ (5,400)	$ (7,410)	$ (9)	$ (26,788)	$ (9)	$ (2,071)