Income Taxes	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes as a percentage of earnings before income taxes for the third quarter of 2015 was 37.5% compared to 34.9% in the third quarter of 2014. The provision for income taxes as a percentage of earnings before income taxes for the first three quarters of 2015 was 35.9% compared to 36.0% in the first three quarters of 2014. Interim provisions are tied to an estimate of the overall annual rate which can vary due to state taxes, the relationship of foreign and domestic earnings, and production credits available. These items cause variations between periods.

Income Taxes

9 Months Ended

Sep. 30, 2015

The provision for income taxes as a percentage of earnings before income taxes for the third quarter of 2015 was 37.5% compared to 34.9% in the third quarter of 2014. The provision for income taxes as a percentage of earnings before income taxes for the first three quarters of 2015 was 35.9% compared to 36.0% in the first three quarters of 2014. Interim provisions are tied to an estimate of the overall annual rate which can vary due to state taxes, the relationship of foreign and domestic earnings, and production credits available. These items cause variations between periods.