Income Taxes	6 Months Ended
Jun. 30, 2016
Income Taxes [Abstract]
Income Taxes	12. Income Taxes The Company's effective tax rates for three and six months ended June 30, 2016 were (0.3%) and (2.2%), respectively, as compared to 38.3% and 37.8% for three and six month ended June 30, 2015, respectively. The differences in the Company's effective tax rates for the three and six months ended June 30, 2016 and 2015 were due to an increase in the valuation allowance against the Company's deferred tax assets recorded in 2016, the negative tax benefit on the vesting of restricted stock, a direct result of the Company's lower stock price in 2016, and the non-deductible write-off of goodwill in 2016. The Company determined that an additional valuation allowance was required after consideration of the Company's future reversal of estimated timing differences. The Company recorded an aggregate deferred federal, state and local tax benefit of $3.6 million and $16.8 million as a result of the operating loss for the three and six months ended June 30, 2016, respectively, which was offset by an increase in the valuation allowance of $3.0 million and $17.2 million, respectively. The Company recorded an aggregate deferred federal, state and local tax benefit of $53.2 million and $132.5 million as a result of the operating loss for the three and six months ended June 30, 2015, respectively. 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 June 30, 2016 and December 31, 2015 is $138.8 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 six months ended June 30, 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.

12. Income Taxes

The Company's effective tax rates for three and six months ended June 30, 2016 were (0.3%) and (2.2%), respectively, as compared to 38.3% and 37.8% for three and six month ended June 30, 2015, respectively. The differences in the Company's effective tax rates for the three and six months ended June 30, 2016 and 2015 were due to an increase in the valuation allowance against the Company's deferred tax assets recorded in 2016, the negative tax benefit on the vesting of restricted stock, a direct result of the Company's lower stock price in 2016, and the non-deductible write-off of goodwill in 2016. The Company determined that an additional valuation allowance was required after consideration of the Company's future reversal of estimated timing differences. The Company recorded an aggregate deferred federal, state and local tax benefit of $3.6 million and $16.8 million as a result of the operating loss for the three and six months ended June 30, 2016, respectively, which was offset by an increase in the valuation allowance of $3.0 million and $17.2 million, respectively. The Company recorded an aggregate deferred federal, state and local tax benefit of $53.2 million and $132.5 million as a result of the operating loss for the three and six months ended June 30, 2015, respectively. 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 June 30, 2016 and December 31, 2015 is $138.8 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 six months ended June 30, 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.