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Supplemental Disclosures (Schedule Of Income Tax Benefit (Expense)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Supplemental Disclosures [Abstract]
Current tax benefit (expense)	$ (43,080)	$ (10,666)
Deferred tax benefit	(25,308)	106,991
Income tax benefit	$ (68,388)	$ 96,325

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.