Income Taxes	6 Months Ended
Jun. 30, 2018
Income Taxes [Abstract]
Income Taxes	(13) Income Taxes The Company recognized income tax expense of $3,820 and $5,189 for U.S. federal, state and foreign income taxes for the three months ended June 30, 2018 and 2017, respectively. The decrease in income tax expense for the three months ended June 30, 2018 compared to the same period for 2017 was primarily related to the impact of the Tax Cuts and Jobs Act (“Tax Legislation”) enacted in the United States on December 22, 2017. The effective tax rate decreased to 20.2% in the second quarter of 2018 from 36.8% in the second quarter of 2017 primarily due the impact of the Tax Legislation compared to the same period in 2017. The Company recognized income tax expense of $7,053 and $9,760 for U.S. federal, state and foreign income taxes for the six months ended June 30, 2018 and 2017, respectively. The decrease in income tax expense for the six months ended June 30, 2018 compared to the same period for 2017 was primarily related to the impact of the Tax Legislation. The effective tax rate decreased to 19.8% in the first half of 2018 from 35.0% in the first half of 2017 primarily due the impact of the Tax Legislation compared to the same period in 2017. The Company has recognized the estimated impact of the Tax Legislation to its 2018 tax position in its estimated annual effective tax rate (“EAETR”) calculation. The Company continues to examine the potential impact of certain provisions of the Tax Legislation that could affect its 2018 EAETR, including the provisions related to global intangible low-taxed income (“GILTI”), foreign derived intangible income (“FDII”) and the base erosion and anti-abuse tax (“BEAT”). Accordingly, the Company's 2018 EAETR may change in subsequent interim periods as additional analysis is completed. The Tax Legislation significantly revises the U.S. corporate income tax by, among other things, lowering corporate income tax rates, imposing a one-time transition tax on deemed repatriated earnings of foreign subsidiaries, imposing a base erosion and anti-abuse tax, and imposing a tax on global intangible low taxed income. Pursuant to the guidance within SEC Staff Accounting Bulletin No. 118 (“SAB 118”), as of December 31, 2017, the Company continues to analyze certain aspects of the Tax Legislation and refine its assessment, the ultimate impact of the Tax Legislation may differ from these estimates due to continued analysis or further regulatory guidance that may be issued as a result of the Tax Legislation.

(13) Income Taxes

The Company recognized income tax expense of $3,820 and $5,189 for U.S. federal, state and foreign income taxes for the three months ended June 30, 2018 and 2017, respectively. The decrease in income tax expense for the three months ended June 30, 2018 compared to the same period for 2017 was primarily related to the impact of the Tax Cuts and Jobs Act (“Tax Legislation”) enacted in the United States on December 22, 2017. The effective tax rate decreased to 20.2% in the second quarter of 2018 from 36.8% in the second quarter of 2017 primarily due the impact of the Tax Legislation compared to the same period in 2017.

The Company recognized income tax expense of $7,053 and $9,760 for U.S. federal, state and foreign income taxes for the six months ended June 30, 2018 and 2017, respectively. The decrease in income tax expense for the six months ended June 30, 2018 compared to the same period for 2017 was primarily related to the impact of the Tax Legislation. The effective tax rate decreased to 19.8% in the first half of 2018 from 35.0% in the first half of 2017 primarily due the impact of the Tax Legislation compared to the same period in 2017.

The Company has recognized the estimated impact of the Tax Legislation to its 2018 tax position in its estimated annual effective tax rate (“EAETR”) calculation. The Company continues to examine the potential impact of certain provisions of the Tax Legislation that could affect its 2018 EAETR, including the provisions related to global intangible low-taxed income (“GILTI”), foreign derived intangible income (“FDII”) and the base erosion and anti-abuse tax (“BEAT”). Accordingly, the Company's 2018 EAETR may change in subsequent interim periods as additional analysis is completed.

The Tax Legislation significantly revises the U.S. corporate income tax by, among other things, lowering corporate income tax rates, imposing a one-time transition tax on deemed repatriated earnings of foreign subsidiaries, imposing a base erosion and anti-abuse tax, and imposing a tax on global intangible low taxed income. Pursuant to the guidance within SEC Staff Accounting Bulletin No. 118 (“SAB 118”), as of December 31, 2017, the Company continues to analyze certain aspects of the Tax Legislation and refine its assessment, the ultimate impact of the Tax Legislation may differ from these estimates due to continued analysis or further regulatory guidance that may be issued as a result of the Tax Legislation.