Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ 17,435us-gaap_CurrentFederalTaxExpenseBenefit	$ 24,524us-gaap_CurrentFederalTaxExpenseBenefit	$ (29,202)us-gaap_CurrentFederalTaxExpenseBenefit
State and local	4,033	3,722	3,201
Total current	21,468us-gaap_CurrentIncomeTaxExpenseBenefit	28,246us-gaap_CurrentIncomeTaxExpenseBenefit	(26,001)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
Federal	27,452	9,496	52,969
State and local	(22,641)	7	912
Total deferred	4,811us-gaap_DeferredIncomeTaxExpenseBenefit	9,503us-gaap_DeferredIncomeTaxExpenseBenefit	53,881us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax expense	$ 26,279us-gaap_IncomeTaxExpenseBenefit	$ 37,749us-gaap_IncomeTaxExpenseBenefit	$ 27,880us-gaap_IncomeTaxExpenseBenefit

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.