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Income Taxes
9 Months Ended
Sep. 30, 2019
Income Taxes [Abstract]  
Income Taxes

16.  Income Taxes

Our effective income tax rate for the nine months ended September 30, 2019 and 2018 was 20.7% and 19.9%, respectively. The effective tax rates for 2019 and 2018 varied from the statutory tax rates primarily due to tax exempt interest income.