Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rates were 30.2% and 32.3% for the three months ended June 30, 2016 and 2015, respectively. The effective income tax rates were 30.2% and 31.6% for the six months ended June 30, 2016 and 2015, respectively. The effective income tax rates for the three and six months ended June 30, 2016 and 2015 were lower than the U.S. federal income tax rate of 35.0% due the impact of foreign operations, partially offset by state income taxes. The effective income tax rate for the six months ended June 30, 2016, was also impacted by the adoption of ASU 2016-09, which requires that excess tax benefits and deficiencies be recorded as tax expense or benefit in the income statement. The adoption resulted in a $1.4 million tax benefit for the six months ended June 30, 2016. The effective income tax rate for the six months ended June 30, 2015 was further reduced due to the settlement of uncertain tax positions.

Income Taxes

6 Months Ended

Jun. 30, 2016

The effective income tax rates were 30.2% and 32.3% for the three months ended June 30, 2016 and 2015, respectively. The effective income tax rates were 30.2% and 31.6% for the six months ended June 30, 2016 and 2015, respectively.

The effective income tax rates for the three and six months ended June 30, 2016 and 2015 were lower than the U.S. federal income tax rate of 35.0% due the impact of foreign operations, partially offset by state income taxes. The effective income tax rate for the six months ended June 30, 2016, was also impacted by the adoption of ASU 2016-09, which requires that excess tax benefits and deficiencies be recorded as tax expense or benefit in the income statement. The adoption resulted in a $1.4 million tax benefit for the six months ended June 30, 2016. The effective income tax rate for the six months ended June 30, 2015 was further reduced due to the settlement of uncertain tax positions.