Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act (“TCJA”), which significantly revised U.S. tax law. Subsequent to the enactment of the TCJA, the SEC staff issued Staff Accounting Bulletin 118 (“SAB 118”), which provides a measurement period of up to one year after the enactment date for companies to finalize the recognition of the income tax effects of the TCJA. As a result of the TCJA and pursuant to SAB 118, the Company provisionally recorded a discrete net tax benefit of $3.1 million during the year ended December 31, 2017 and no adjustments were recorded to that provisional amount during the three months ended March 31, 2018. The ultimate impact of the TCJA may differ from these provisional amounts due to, among other things, additional analysis, changes in interpretations and assumptions, additional regulatory guidance that may be issued, and the computation of state income taxes as there is uncertainty on conformity to the U.S. federal tax system following the TCJA.

Income Taxes

3 Months Ended

Mar. 31, 2018

On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act (“TCJA”), which significantly revised U.S. tax law. Subsequent to the enactment of the TCJA, the SEC staff issued Staff Accounting Bulletin 118 (“SAB 118”), which provides a measurement period of up to one year after the enactment date for companies to finalize the recognition of the income tax effects of the TCJA. As a result of the TCJA and pursuant to SAB 118, the Company provisionally recorded a discrete net tax benefit of $3.1 million during the year ended December 31, 2017 and no adjustments were recorded to that provisional amount during the three months ended March 31, 2018. The ultimate impact of the TCJA may differ from these provisional amounts due to, among other things, additional analysis, changes in interpretations and assumptions, additional regulatory guidance that may be issued, and the computation of state income taxes as there is uncertainty on conformity to the U.S. federal tax system following the TCJA.