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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2019
Income Taxes [Abstract]
Income Taxes	15. Income Taxes Our effective income tax rate for the six months ended June 30, 2019 and 2018 was 20.8% and 20.1%, respectively. The effective tax rates for 2019 and 2018 were both favorably impacted by the lower statutory rate from the enactment of the Tax Cuts and Jobs Act in December 2017.