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Income Taxes
6 Months Ended
Jun. 30, 2014
Income Taxes [Abstract]  
Income Taxes
8.Income Taxes

The effective income tax rates for the quarters ended June 30, 2014 and 2013, were 34.7% and 27.7%, respectively. For the six-month periods ended June 30, 2014 and 2013, the effective income tax rates were 35.7% and 30.0%, respectively. The effective tax rates in both 2014 and 2013 were impacted by changes in estimates associated with the finalization of prior year foreign and domestic tax items, including the reversal of valuation allowances related to tax loss carryovers and from the restructuring activities.