Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes During the three and six months ended June 30, 2018, the Company recorded a tax provision of $5.6 million and $11.4 million, respectively, which reflects income tax expense related to the periods’ income before income taxes. The effective tax rate for the three and six months ended June 30, 2018 was 16.8% and 19.9%, respectively. Our 2018 tax rates for these periods primarily reflect the lower corporate tax rate of 21% as a result of the Tax Act when compared to 2017 federal rates. In addition, during the three and six months ended June 30, 2018, we recorded a $3.0 million tax benefit primarily related to the retroactive reinstatement of energy efficient homes tax credits to 2017 for which we obtained certifications in 2018. The Company is still analyzing certain aspects of the Tax Act and expects the final impact to be determined in conjunction with its tax return filings in the fourth quarter of 2018. During the three and six months ended June 30, 2017, the Company recorded a tax provision of $8.2 million and $17.6 million, which reflects income tax expense related to the periods’ income before income taxes. The effective tax rate for the three and six months ended June 30, 2017 was 32.5% and 34.3%, respectively, which included the former 35% corporate tax rate and tax expense related to the expected tax benefits for the domestic production activities deduction. The Company had $4.0 million of state NOL carryforwards, net of the federal benefit, at June 30, 2018. Our state NOLs may be carried forward from one to 15 years, depending on the tax jurisdiction, with $1.2 million expiring between 2022 and 2027 and $2.8 million expiring between 2028 and 2032, absent sufficient state taxable income.

Income Taxes

During the three and six months ended June 30, 2018, the Company recorded a tax provision of $5.6 million and $11.4 million, respectively, which reflects income tax expense related to the periods’ income before income taxes. The effective tax rate for the three and six months ended June 30, 2018 was 16.8% and 19.9%, respectively. Our 2018 tax rates for these periods primarily reflect the lower corporate tax rate of 21% as a result of the Tax Act when compared to 2017 federal rates. In addition, during the three and six months ended June 30, 2018, we recorded a $3.0 million tax benefit primarily related to the retroactive reinstatement of energy efficient homes tax credits to 2017 for which we obtained certifications in 2018. The Company is still analyzing certain aspects of the Tax Act and expects the final impact to be determined in conjunction with its tax return filings in the fourth quarter of 2018. During the three and six months ended June 30, 2017, the Company recorded a tax provision of $8.2 million and $17.6 million, which reflects income tax expense related to the periods’ income before income taxes. The effective tax rate for the three and six months ended June 30, 2017 was 32.5% and 34.3%, respectively, which included the former 35% corporate tax rate and tax expense related to the expected tax benefits for the domestic production activities deduction.

The Company had $4.0 million of state NOL carryforwards, net of the federal benefit, at June 30, 2018. Our state NOLs may be carried forward from one to 15 years, depending on the tax jurisdiction, with $1.2 million expiring between 2022 and 2027 and $2.8 million expiring between 2028 and 2032, absent sufficient state taxable income.