Income Taxes	6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three and six months ended June 30, 2019, the Company recorded a de minimis provision for income taxes. For the three and six months ended June 30, 2018, the Company recorded a benefit for income taxes of $1.0 million and $0.8 million, respectively. The benefit for income taxes recorded during the three months ended June 30, 2018 was to reflect the settlement of a local tax audit. The income tax benefit for the six months ended June 30, 2018 includes the provision for income taxes recorded by the Company for the three months ended March 31, 2018 to reflect the impact of sequestration on the Company's estimate of refundable AMT credits. The Company will continue to evaluate its ability to realize its deferred tax assets on a quarterly basis and will adjust such amounts in light of changing facts and circumstances including, but not limited to, future projections of taxable income, tax legislation, rulings by relevant tax authorities, the progress of ongoing tax audits and the regulatory approval of products currently under development. Any additional changes to the valuation allowance recorded on deferred tax assets in the future would impact the Company’s income taxes.

Income Taxes

For the three and six months ended June 30, 2019, the Company recorded a de minimis provision for income taxes. For the three and six months ended June 30, 2018, the Company recorded a benefit for income taxes of $1.0 million and $0.8 million, respectively. The benefit for income taxes recorded during the three months ended June 30, 2018 was to reflect the settlement of a local tax audit. The income tax benefit for the six months ended June 30, 2018 includes the provision for income taxes recorded by the Company for the three months ended March 31, 2018 to reflect the impact of sequestration on the Company's estimate of refundable AMT credits.

The Company will continue to evaluate its ability to realize its deferred tax assets on a quarterly basis and will adjust such amounts in light of changing facts and circumstances including, but not limited to, future projections of taxable income, tax legislation, rulings by relevant tax authorities, the progress of ongoing tax audits and the regulatory approval of products currently under development. Any additional changes to the valuation allowance recorded on deferred tax assets in the future would impact the Company’s income taxes.