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Income Taxes (Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Federal, Current	$ 270,024	$ 797,406	$ 499,535
State, Current	7,148	135,148	91,316
Federal, Deferred	94,896	70,671	(9,679)
State, Deferred	19,508	24,737	819
Income tax provision total	$ 391,576	$ 1,027,962	$ 581,991

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

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

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

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