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Income taxes
6 Months Ended
Jun. 30, 2020
Income Tax Disclosure [Abstract]  
Income taxes Income taxes Our effective tax rate was 13.5% for the three and six months ended June 30, 2020, and 13.0% for the three and six months ended June 30, 2019. Our effective tax rate in any period can be impacted by revisions to the estimated full year rate