Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes ASC 740, Income Taxes requires that a valuation allowance be established when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including the company's performance, the market environment in which the company operates, the utilization of past tax credits, length of carryback and carryforward periods, existing contracts, and unsettled circumstances that, if unfavorably resolved, would adversely affect future operations and profit levels in the future years. Based on the available evidence, the Company continues to conclude that its deferred tax assets are not realizable on a more-likely-than-not basis. On December 22, 2017, the SEC staff issued Staff Accounting Bulletin (“SAB”) No. 118, which provides guidance on accounting for the tax effects of the 2017 Tax Cuts and Jobs Act ("TCJA"). The purpose of SAB No. 118 was to address any uncertainty or diversity of view in applying ASC Topic 740, Income Taxes in the reporting period in which the TCJA was enacted. SAB No. 118 addresses situations where the accounting is incomplete for certain income tax effects of the TCJA upon issuance of a company’s financial statements for the reporting period that includes the enactment date. SAB No. 118 allows for a provisional amount to be recorded if it is a reasonable estimate of the impact of the TCJA. Additionally, SAB No. 118 allows for a measurement period to finalize the impacts of the TCJA, not to extend beyond one year from the date of enactment. The Company’s accounting for certain elements of the TCJA was incomplete as of the period ended December 31, 2017, and remains incomplete as of March 31, 2018. However, the Company was able to make reasonable estimates of the effect of the TCJA and, therefore, recorded provisional estimates for these items. The final impact of the TCJA may differ from the provisional amounts that have been recognized, due to, among other things, legislative or administrative actions to clarify the intent of the statutory language as well as any changes in accounting standards for income taxes or related interpretations in response to the TCJA. Additionally, the Company's U.S. tax return for 2017 will be filed during the second or third quarter of 2018 and any changes to the tax positions for temporary differences compared to the estimates used may result in an adjustment of the estimated tax benefit recorded as of December 31, 2017. For the three months ended March 31, 2018, the Company recorded an income tax benefit of $2,352 on a pre-tax loss of $11.6 million. The effective tax rate differs from the statutory rate as no income tax benefit was recorded for current year operating losses due to the Company’s assessment regarding tax realizability of its deferred tax assets.

Income Taxes

ASC 740, Income Taxes requires that a valuation allowance be established when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. A review of all available positive and negative evidence needs to be considered, including the company's performance, the market environment in which the company operates, the utilization of past tax credits, length of carryback and carryforward periods, existing contracts, and unsettled circumstances that, if unfavorably resolved, would adversely affect future operations and profit levels in the future years. Based on the available evidence, the Company continues to conclude that its deferred tax assets are not realizable on a more-likely-than-not basis.

On December 22, 2017, the SEC staff issued Staff Accounting Bulletin (“SAB”) No. 118, which provides guidance on accounting for the tax effects of the 2017 Tax Cuts and Jobs Act ("TCJA"). The purpose of SAB No. 118 was to address any uncertainty or diversity of view in applying ASC Topic 740, Income Taxes in the reporting period in which the TCJA was enacted. SAB No. 118 addresses situations where the accounting is incomplete for certain income tax effects of the TCJA upon issuance of a company’s financial statements for the reporting period that includes the enactment date. SAB No. 118 allows for a provisional amount to be recorded if it is a reasonable estimate of the impact of the TCJA. Additionally, SAB No. 118 allows for a measurement period to finalize the impacts of the TCJA, not to extend beyond one year from the date of enactment.

The Company’s accounting for certain elements of the TCJA was incomplete as of the period ended December 31, 2017, and remains incomplete as of March 31, 2018. However, the Company was able to make reasonable estimates of the effect of the TCJA and, therefore, recorded provisional estimates for these items. The final impact of the TCJA may differ from the provisional amounts that have been recognized, due to, among other things, legislative or administrative actions to clarify the intent of the statutory language as well as any changes in accounting standards for income taxes or related interpretations in response to the TCJA. Additionally, the Company's U.S. tax return for 2017 will be filed during the second or third quarter of 2018 and any changes to the tax positions for temporary differences compared to the estimates used may result in an adjustment of the estimated tax benefit recorded as of December 31, 2017.

For the three months ended March 31, 2018, the Company recorded an income tax benefit of $2,352 on a pre-tax loss of $11.6 million. The effective tax rate differs from the statutory rate as no income tax benefit was recorded for current year operating losses due to the Company’s assessment regarding tax realizability of its deferred tax assets.