Income Taxes	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes. Our overall effective tax rate for the three months ended September 30, 2015 was 27.7%, compared to 24.3% for the three months ended September 30, 2014. For the nine months ended September 30, 2015, our effective tax rate was 29.4%, compared to 25.6% for the nine months ended September 30, 2014. The increase in the effective tax rate for both periods, compared to the corresponding periods for the prior year, was primarily due to the impact of certain tax benefits recognized during the third quarter of 2014, which were not repeated in the third quarter of 2015.

Income Taxes

9 Months Ended

Sep. 30, 2015

Income Taxes. Our overall effective tax rate for the three months ended September 30, 2015 was 27.7%, compared to 24.3% for the three months ended September 30, 2014. For the nine months ended September 30, 2015, our effective tax rate was 29.4%, compared to 25.6% for the nine months ended September 30, 2014. The increase in the effective tax rate for both periods, compared to the corresponding periods for the prior year, was primarily due to the impact of certain tax benefits recognized during the third quarter of 2014, which were not repeated in the third quarter of 2015.