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	$ 14,674	$ 94,080	$ 23,020
State	4,636	10,015	7,601
Total, Current	19,310	104,095	30,621
Deferred:
Federal	58,331	56,487	105,771
State	10,953	(3,080)	1,261
Total, Deferred	69,284	53,407	107,032
Total provision for income taxes for income from continuing operations	$ 88,594	$ 157,502	$ 137,653

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.