Income Taxes (Schedule of Provision for Income Taxes for Income from Continuing Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 27,427	$ 99,298	$ 27,624
State	5,763	10,271	7,827
Total, Current	33,190	109,569	35,451
Deferred:
Federal	59,479	57,488	104,923
State	11,009	(3,031)	1,219
Total, Deferred	70,488	54,457	106,142
Total provision for income taxes for income from continuing operations	$ 103,678	$ 164,026	$ 141,593

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

Amount of current income tax expense (benefit) pertaining to taxable 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 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.