11.	Income Taxes

The provision for income taxes for the three months ended March 31, 2016 reflects an income tax benefit at an effective tax rate of 6.9% compared to income tax expense at an effective rate of 38.8% for the three months ended March 31, 2015. The decrease in income tax expense and the effective tax rate is primarily related to a discrete item related to the tax treatment of stock-compensation during the first quarter of 2016.