Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company maintains income tax valuation allowances on its U.S. Federal and state deferred tax assets due to a three year cumulative loss condition which limits the ability to consider other positive subjective evidence, such as projections of future results, to assess the realizability of deferred tax assets. Results in both 2017 and 2016 include impacts from income taxes which differ from a standard 35% tax rate, primarily related to income tax valuation allowance changes. Second quarter 2017 results included a benefit for income taxes of $2.1 million, which includes $5.4 million of discrete tax benefits recognized in the quarter largely for the effects of amending tax returns for prior periods in certain domestic jurisdictions. The second quarter 2016 benefit for income taxes was $25.9 million, which includes $2.8 million of discrete tax benefits. For the first six months of 2017, the benefit for income taxes was $0.1 million, compared to a benefit for income taxes of $60.1 million, or 34.6% of the loss before income taxes, for the comparable 2016 period. The first six months of 2017 and 2016 included discrete tax benefits of $6.7 million and $3.6 million, respectively.

Income Taxes

The Company maintains income tax valuation allowances on its U.S. Federal and state deferred tax assets due to a three year cumulative loss condition which limits the ability to consider other positive subjective evidence, such as projections of future results, to assess the realizability of deferred tax assets. Results in both 2017 and 2016 include impacts from income taxes which differ from a standard 35% tax rate, primarily related to income tax valuation allowance changes. Second quarter 2017 results included a benefit for income taxes of $2.1 million, which includes $5.4 million of discrete tax benefits recognized in the quarter largely for the effects of amending tax returns for prior periods in certain domestic jurisdictions. The second quarter 2016 benefit for income taxes was $25.9 million, which includes $2.8 million of discrete tax benefits.

For the first six months of 2017, the benefit for income taxes was $0.1 million, compared to a benefit for income taxes of $60.1 million, or 34.6% of the loss before income taxes, for the comparable 2016 period. The first six months of 2017 and 2016 included discrete tax benefits of $6.7 million and $3.6 million, respectively.