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Supplemental Disclosures (Schedule Of Income Tax Benefit (Expense)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Supplemental Disclosures [Abstract]
Current tax benefit (expense)	$ 7,492	$ (28,128)	$ (35,587)	$ (38,794)
Deferred tax benefit	6,871	(16,651)	(32,179)	123,642
Income tax benefit	$ (621)	$ 11,477	$ 67,766	$ (84,848)

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.