Income Taxes	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate was 32.5% in the third quarter of 2015 compared to 30.4% for the same period in 2014. Effective tax rates differ from statutory federal income tax rates, primarily due to the domestic manufacturing deduction, provisions for state and local income taxes and permanent tax differences. The increase in the effective tax rate from the third quarter of 2015 compared to the third quarter of 2014 is primarily due to incremental research and development tax credits related to the 2013 calendar year of $1.8 million recognized during the third quarter of 2014 as a result of an amended tax filing at that time.

Income Taxes

9 Months Ended

Sep. 30, 2015

The effective tax rate was 32.5% in the third quarter of 2015 compared to 30.4% for the same period in 2014. Effective tax rates differ from statutory federal income tax rates, primarily due to the domestic manufacturing deduction, provisions for state and local income taxes and permanent tax differences. The increase in the effective tax rate from the third quarter of 2015 compared to the third quarter of 2014 is primarily due to incremental research and development tax credits related to the 2013 calendar year of $1.8 million recognized during the third quarter of 2014 as a result of an amended tax filing at that time.