Income Taxes Benefit (Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets:
Federal	$ 0us-gaap_CurrentFederalTaxExpenseBenefit	$ (924)us-gaap_CurrentFederalTaxExpenseBenefit	$ 0us-gaap_CurrentFederalTaxExpenseBenefit
State and local	(86)	(3,154)	(1,218)
Total current income tax (expense) benefit	(86)us-gaap_CurrentIncomeTaxExpenseBenefit	(4,078)us-gaap_CurrentIncomeTaxExpenseBenefit	(1,218)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
Federal	25,081	77,341	77,010
State and local	4,783	17,028	19,768
Total deferred income tax benefit (expense)	29,864us-gaap_DeferredIncomeTaxExpenseBenefit	94,369us-gaap_DeferredIncomeTaxExpenseBenefit	96,778us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax benefit (expense)	$ 29,778us-gaap_IncomeTaxExpenseBenefit	$ 90,291us-gaap_IncomeTaxExpenseBenefit	$ 95,560us-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.