Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company determines its interim tax provision by applying the estimated income tax rate expected for the full calendar year to income before income taxes for the period adjusted for discrete items. The Company is subject to U.S. Federal income taxes as well as income taxes of multiple state jurisdictions. For Federal and state tax purposes, the tax years from 2014 to 2017 remain open to examination. The Company recognized tax expense for the three months ended March 31, 2018 and March 31, 2017 of $1.9 million and $3.8 million, respectively, or effective tax rates of 28.9% and 46.1%, respectively. The effective tax rate for the three months ended March 31, 2018 reflects the reduction in the federal corporate tax rate to 21% from the prior existing maximum rate of 35% effective January 1, 2018 under the U.S. Tax Cuts and Jobs Act, or the Tax Act. The effective tax rate for the three months ended March 31, 2018 includes approximately $0.2 million in additional income tax expense due to ASU 2016-09, Compensation - Stock Compensation (Topic 718). The effective tax rate for the three months ended March 31, 2017 includes approximately $0.5 million in additional income tax expense due to ASU 2016-09.

Income Taxes

The Company determines its interim tax provision by applying the estimated income tax rate expected for the full calendar year to income before income taxes for the period adjusted for discrete items.

The Company is subject to U.S. Federal income taxes as well as income taxes of multiple state jurisdictions. For Federal and state tax purposes, the tax years from 2014 to 2017 remain open to examination.

The Company recognized tax expense for the three months ended March 31, 2018 and March 31, 2017 of $1.9 million and $3.8 million, respectively, or effective tax rates of 28.9% and 46.1%, respectively. The effective tax rate for the three months ended March 31, 2018 reflects the reduction in the federal corporate tax rate to 21% from the prior existing maximum rate of 35% effective January 1, 2018 under the U.S. Tax Cuts and Jobs Act, or the Tax Act. The effective tax rate for the three months ended March 31, 2018 includes approximately $0.2 million in additional income tax expense due to ASU 2016-09, Compensation - Stock Compensation (Topic 718). The effective tax rate for the three months ended March 31, 2017 includes approximately $0.5 million in additional income tax expense due to ASU 2016-09.