Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 7—Income Taxes The effective tax rate was 17.2% and 17.4% for the three months ended March 31, 2018 and 2017, respectively. The change in the effective tax rate for the three months ended March 31, 2018 was primarily due to the decrease in the domestic statutory tax rate from 35% to 21%, offset partially by the unfavorable impact of a tax on Global Intangible Low-Taxed Income (“GILTI”). Both the domestic statutory tax rate decrease and GILTI tax became effective January 1, 2018 as a result of the Tax Cut and Jobs Act of 2017 (“Tax Act”) enacted into law in the U.S. on December 22, 2017. In December 2017, the SEC Staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to provide guidance on how to implement the accounting required as a result of the Tax Act. Due to the complexity of the Tax Act, SAB 118 allowed companies to record provisional amounts, or reasonable estimates of the tax effects of the Act during a measurement period not to exceed one year beyond the enactment date. Accordingly, we provided provisional amounts for the period ending December 31, 2017 relating to the deemed repatriation provisions, revaluation of deferred taxes, other international provisions and the related state tax impacts. We have not yet completed our accounting related to these items and we did not record any significant adjustments related to our provisional amounts during the period ending March 31, 2018. We will continue to analyze the provisional amounts in conjunction with guidance issued by the Department of Treasury in order to complete our accounting during the measurement period.

Note 7—Income Taxes

The effective tax rate was 17.2% and 17.4% for the three months ended March 31, 2018 and 2017, respectively. The change in the effective tax rate for the three months ended March 31, 2018 was primarily due to the decrease in the domestic statutory tax rate from 35% to 21%, offset partially by the unfavorable impact of a tax on Global Intangible Low-Taxed Income (“GILTI”). Both the domestic statutory tax rate decrease and GILTI tax became effective January 1, 2018 as a result of the Tax Cut and Jobs Act of 2017 (“Tax Act”) enacted into law in the U.S. on December 22, 2017. In December 2017, the SEC Staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to provide guidance on how to implement the accounting required as a result of the Tax Act. Due to the complexity of the Tax Act, SAB 118 allowed companies to record provisional amounts, or reasonable estimates of the tax effects of the Act during a measurement period not to exceed one year beyond the enactment date. Accordingly, we provided provisional amounts for the period ending December 31, 2017 relating to the deemed repatriation provisions, revaluation of deferred taxes, other international provisions and the related state tax impacts. We have not yet completed our accounting related to these items and we did not record any significant adjustments related to our provisional amounts during the period ending March 31, 2018. We will continue to analyze the provisional amounts in conjunction with guidance issued by the Department of Treasury in order to complete our accounting during the measurement period.