Income Taxes

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective income tax rates were 25.8% and 33.9% for the three months ended March 31, 2013 and 2012, respectively.

The effective income tax rate for the three months ended March 31, 2013 and 2012 were lower than the U.S federal income tax rate of 35% due to the impact of foreign operations, partially offset by state taxes. The effective income tax rate for the three months ended March 31, 2013 was further reduced by settlements of unrecognized tax positions and by legislation retroactively extending the U.S. controlled foreign corporation look-through rule.