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Subsequent Events (Details) - $ / shares
1 Months Ended 3 Months Ended 9 Months Ended
Oct. 28, 2019
Oct. 31, 2018
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Subsequent Event [Line Items]              
Cash dividend per common share, increase   $ 0.02          
Cash dividends per common share   $ 0.16 $ 0.14 $ 0.16 $ 0.14 $ 0.48 $ 0.42
Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends, declared date Oct. 28, 2019            
Dividends per share amount $ 0.185            
Cash dividend per common share, increase 0.025            
Cash dividends per common share $ 0.185            
Dividends, date to be paid Nov. 26, 2019            
Dividends, date of record Nov. 12, 2019