Income Taxes Expense (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	$ 38,573	$ 41,151	$ 40,141
State	687	(557)	6,319
Total	39,260	40,594	46,460
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	15,357	17,007	8,662
State	(3,532)	0	(4,284)
Total	11,825	17,007	4,378
Income Tax Expense (Benefit)	$ 51,085	$ 57,601	$ 50,838

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.