Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rates were 30.5% and 32.2% for the three months ended September 30, 2017 and 2016, respectively. The effective income tax rates were 31.6% and 31.1% for the nine months ended September 30, 2017 and 2016, respectively. The effective income tax rates for the three and nine months ended September 30, 2017 and 2016 were lower than the U.S. federal income tax rate of 35% due the impact of foreign operations and ASU 2016-09 benefits from share-based compensation, partially offset by state income taxes.

Income Taxes

9 Months Ended

Sep. 30, 2017

The effective income tax rates were 30.5% and 32.2% for the three months ended September 30, 2017 and 2016, respectively. The effective income tax rates were 31.6% and 31.1% for the nine months ended September 30, 2017 and 2016, respectively. The effective income tax rates for the three and nine months ended September 30, 2017 and 2016 were lower than the U.S. federal income tax rate of 35% due the impact of foreign operations and ASU 2016-09 benefits from share-based compensation, partially offset by state income taxes.