Income Taxes	3 Months Ended
Mar. 31, 2017
Income Taxes [Abstract]
Income Taxes	Note 10. Income Taxes Our effective income tax rate was 18.5 percent for the three months ended March 31, 2017, as compared to 30.6 percent for the three months ended March 31, 2016. The decrease in our effective tax rate for the three months ended March 31, 2017, as compared to the same period of the prior year, was primarily related to the adoption of FASB issued amendments related to share-based compensation discussed further in “Note 2. Accounting Policies”. The change in accounting guidance reduced our effective income tax rate for the three months ended March 31, 2017, by approximately 13 percentage points.

Income Taxes

3 Months Ended

Mar. 31, 2017

Note 10. Income Taxes

Our effective income tax rate was 18.5 percent for the three months ended March 31, 2017, as compared to 30.6 percent for the three months ended March 31, 2016. The decrease in our effective tax rate for the three months ended March 31, 2017, as compared to the same period of the prior year, was primarily related to the adoption of FASB issued amendments related to share-based compensation discussed further in “Note 2. Accounting Policies”. The change in accounting guidance reduced our effective income tax rate for the three months ended March 31, 2017, by approximately 13 percentage points.