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Net Income Per Share (Narrative) (Details) - $ / shares
9 Months Ended
Jun. 13, 2019
May 21, 2014
Sep. 30, 2020
Sep. 30, 2019
Earnings Per Share [Line Items]        
Dividends payable date declared Jun. 13, 2019      
Common stock dividends percentage 5.00% 5.00% 5.00%  
Common stock dividend declared per share $ 0.05      
Dividends payable date to be paid Jul. 05, 2019      
Dividends payable date of record Jun. 26, 2019      
Equity Option [Member]        
Earnings Per Share [Line Items]        
Securities considered to be anti-dilutive and excluded from earnings per share calculation     145,404 66,301