Income Taxes	3 Months Ended
Mar. 31, 2016
Income Taxes [Abstract]
Income Taxes	Note 10. Income Taxes Our effective income tax rate was 30.6% and 30.4% for the three months ended March 31, 2016 and 2015, respectively. The increase in our effective rate for the three months ended March 31, 2016 as compared to the same period of the prior year was related to lower relative earnings subject to international tax rates that are lower than domestic tax rates, including the impact of foreign currency exchange rates, partly offset by the benefit of the U.S. research and development (“R&D”) tax credit. There was no available U.S. R&D tax credit during the period ending March 31, 2015 because the credit had not yet been extended. In December 2015, the U.S. R&D tax credit was permanently extended with retroactive application to January 1, 2015.

Income Taxes

3 Months Ended

Mar. 31, 2016

Note 10. Income Taxes

Our effective income tax rate was 30.6% and 30.4% for the three months ended March 31, 2016 and 2015, respectively. The increase in our effective rate for the three months ended March 31, 2016 as compared to the same period of the prior year was related to lower relative earnings subject to international tax rates that are lower than domestic tax rates, including the impact of foreign currency exchange rates, partly offset by the benefit of the U.S. research and development (“R&D”) tax credit. There was no available U.S. R&D tax credit during the period ending March 31, 2015 because the credit had not yet been extended. In December 2015, the U.S. R&D tax credit was permanently extended with retroactive application to January 1, 2015.