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Income Taxes
3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

The effective tax rates for the three months ended March 31, 2018 and 2017 were 19.0% and 19.6%, respectively. The current quarter tax provision reflects the lower federal income tax rate enacted with tax reform in December of 2017. The earlier quarter includes the tax benefits associated with using the marginal income tax rate for the loss on the early extinguishment of debt.