Income Taxes

3 Months Ended

Apr. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Note 9. Income Taxes

For the three months ended April 30, 2016 and 2015, our effective tax rates were 39.1% and 40.1%, respectively. During the three months ended April 30, 2016 as compared to the prior year period, our effective tax rate decreased primarily due to the permanent reenactment of the U.S. Research and Development Tax credit which was signed into law in December 2015.