Income Taxes	3 Months Ended
Mar. 31, 2016
Income Taxes [Abstract]
Income Taxes	12. Income Taxes The difference in the Company's effective tax rates for the three months ended March 31, 2016 and 2015 was due to an increase in the valuation allowance against the Company's deferred tax assets recorded in 2016 and the negative tax benefit on the vesting of restricted stock, a direct result of the Company's lower stock price during the three months ended March 31, 2016. The Company determined that the additional valuation allowance was required after consideration of the Company's future reversal of estimated timing differences. The Company recorded a deferred federal, state and local tax benefit of $13.2 million as a result of the operating loss for the three months ended March 31, 2016, which was off-set by an increase in the valuation allowance of $14.2 million. The Company recorded an aggregate deferred federal, state and local tax benefit of $79.2 million as a result of the operating loss for the three months ended March 31, 2015. The Company evaluates its deferred tax assets each quarter to determine if a valuation allowance is required based on whether it is more likely than not that some portion of the deferred tax asset would not be realized. The Company's valuation allowance as of March 31, 2016 and December 31, 2015 is $135.8 million and $121.6 million, respectively. The Company's current tax expense continues to mainly reflect its cash tax position for states that do not allow for or have suspended the use of net operating losses for the period. The Company recorded interest charges related to its tax contingency reserve for cash tax positions for the three months ended March 31, 2016 and 2015 which are included in income tax expense or benefit for the period. Tax returns for years 2012 through 2014 are subject to future examination by tax authorities. In addition, the net operating losses from prior years are subject to adjustment under examination.

Income Taxes

3 Months Ended

Mar. 31, 2016

12. Income Taxes

The difference in the Company's effective tax rates for the three months ended March 31, 2016 and 2015 was due to an increase in the valuation allowance against the Company's deferred tax assets recorded in 2016 and the negative tax benefit on the vesting of restricted stock, a direct result of the Company's lower stock price during the three months ended March 31, 2016. The Company determined that the additional valuation allowance was required after consideration of the Company's future reversal of estimated timing differences. The Company recorded a deferred federal, state and local tax benefit of $13.2 million as a result of the operating loss for the three months ended March 31, 2016, which was off-set by an increase in the valuation allowance of $14.2 million. The Company recorded an aggregate deferred federal, state and local tax benefit of $79.2 million as a result of the operating loss for the three months ended March 31, 2015. The Company evaluates its deferred tax assets each quarter to determine if a valuation allowance is required based on whether it is more likely than not that some portion of the deferred tax asset would not be realized. The Company's valuation allowance as of March 31, 2016 and December 31, 2015 is $135.8 million and $121.6 million, respectively.

The Company's current tax expense continues to mainly reflect its cash tax position for states that do not allow for or have suspended the use of net operating losses for the period.

The Company recorded interest charges related to its tax contingency reserve for cash tax positions for the three months ended March 31, 2016 and 2015 which are included in income tax expense or benefit for the period. Tax returns for years 2012 through 2014 are subject to future examination by tax authorities. In addition, the net operating losses from prior years are subject to adjustment under examination.