Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s consolidated income tax benefit (expense) was $0.0 million for the three and six months ended June 30, 2018 and 2017. The Company has recorded a valuation allowance to reduce its net deferred tax asset to an amount that is more likely than not to be realized in future years. Accordingly, the benefit of the net operating loss that would have been recognized in the three and six months ended June 30, 2018 was offset by changes in the valuation allowance. The tax expense that would have been recognized in the three and six months ended June 30, 2018 was offset by changes in the valuation allowance. During the three and six months ended June 30, 2018, the Company had no material changes in uncertain tax positions. In December 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to: (i) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (ii) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (iii) creating a new limitation on deductible interest expense; and (iv) changing rules related to uses and limitations of net operating carryforwards created in tax years beginning after December 31, 2017. The most significant impact on the Company's consolidated financial statements was a reduction of approximately $82.5 million in deferred tax assets in 2017 which was offset by changes to the Company’s valuation allowance.

Income Taxes

The Company’s consolidated income tax benefit (expense) was $0.0 million for the three and six months ended June 30, 2018 and 2017. The Company has recorded a valuation allowance to reduce its net deferred tax asset to an amount that is more likely than not to be realized in future years. Accordingly, the benefit of the net operating loss that would have been recognized in the three and six months ended June 30, 2018 was offset by changes in the valuation allowance. The tax expense that would have been recognized in the three and six months ended June 30, 2018 was offset by changes in the valuation allowance. During the three and six months ended June 30, 2018, the Company had no material changes in uncertain tax positions.

In December 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to: (i) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (ii) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (iii) creating a new limitation on deductible interest expense; and (iv) changing rules related to uses and limitations of net operating carryforwards created in tax years beginning after December 31, 2017. The most significant impact on the Company's consolidated financial statements was a reduction of approximately $82.5 million in deferred tax assets in 2017 which was offset by changes to the Company’s valuation allowance.