Income Tax Expense

3 Months Ended

Mar. 31, 2016

Income Tax Disclosure [Abstract]

Income Tax Expense

The effective tax rates for the three months ended March 31, 2016 and 2015 were 22.5% and 23.0%, respectively. Income tax expense of $4.4 million in the first quarter of 2016decreased by $4.9 million compared to $9.3 million in the same period in 2015, primarily in the United States as taxable income recognized in the United States decreased by $15.1 million in 2016 compared to 2015. No other jurisdiction in which we operate had a material change in income tax expense.

Subsequent to March 31, 2016, our U.S. subsidiaries settled an audit covering the years 2010 through 2012 with the Internal Revenue Service that will result in the release of reserves for uncertain tax positions in the amount of $0.9 million in the second quarter of 2016.