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Income Taxes
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes
The effective income tax rates on the net loss before income taxes of 41.9% and (21.3)% for the three months ended March 31, 2015 and 2014, respectively, were determined using an estimated annual effective tax rate after considering any discrete items for such periods. As a result of the release in the December 2014 quarter of the valuation allowance on our U.S. deferred tax assets, the estimated annual effective tax rate for the three months ended March 31, 2015 included the benefit of the U.S. tax loss.
Our effective income tax rate on foreign earnings is impacted by the mix of income and the statutory tax rates in our foreign jurisdictions, which range from a low of 0% to a high of 35%. The foreign jurisdictions that had the most impact on our foreign income tax expense (benefit) in the three months ended March 31, 2015 included Australia, Bermuda, Canada, Ireland, India and the U.K.