Income Taxes (Schedule of Federal and State Income Tax Provision) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal, current	$ 49,022	$ 34,941	$ 11,371
State, current	9,202	6,635	3,926
Current	58,224	41,576	15,297
Deferred:
Federal, deferred	4,879	(327)	7,948
State, deferred	857	231	256
Deferred	$ 5,736	$ (96)	$ 8,204

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.