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Provision for Income Taxes
6 Months Ended
Jun. 30, 2014
Income Tax Disclosure [Abstract]  
Provision for Income Taxes

Note 11. Provision for Income Taxes

For the six month periods ended June 30, 2014 and 2013, our effective tax rates were 32% and 35%, respectively. The difference between the U.S. federal statutory tax rate of 34% and our effective tax rates for the six months ended June 30, 2014 was primarily due to the effective tax rate being impacted by non-U.S. based earnings being taxed at lower rates.

As of June 30, 2014, we do not foresee any significant changes to our unrecognized tax benefits within the next twelve months.