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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2020
Income Tax Examination [Line Items]          
Effective tax rate     23.40%    
Percentage of decrease related to rate impacted by discrete items     0.10%    
Income tax expense $ 15,121 $ 7,816 $ 34,736 $ 19,031  
Forecast [Member]          
Income Tax Examination [Line Items]          
Effective tax rate         23.40%
Blended federal and state statutary rate         25.10%
Increased to effective tax rate         1.70%