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Income Taxes
3 Months Ended
Mar. 31, 2015
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]  
Income Taxes
Income Taxes
 
Our consolidated effective income tax rate for the quarter ended March 31, 2015 was 19.1% as compared to 14.2% in the prior year quarter. Excluding the impact of discrete tax items, our consolidated effective income tax rate for the quarters ended March 31, 2015 and 2014 was 17.5% and 10.6%, respectively. The increase is primarily attributable to an increase in the relative components of our estimated 2015 earnings, excluding discrete items, generated in tax jurisdictions with higher tax rates and tax legislation enacted by the U.K. government that became effective in April 2014.

Discrete tax expenses for the quarters ended March 31, 2015 and 2014 were primarily attributable to the recognition of liabilities for unrecognized tax benefits associated with tax positions taken in prior years.