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Earnings Per Share (Narrative) (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Earnings Per Share [Abstract]          
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 112,600 60,650 112,600 60,650  
Share price $ 24.32 $ 31.61 $ 24.32 $ 31.61 $ 38.90