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Earnings per Common Share - Textual (Details) - $ / shares
3 Months Ended 9 Months Ended
Oct. 25, 2019
Oct. 15, 2019
Jul. 23, 2019
Jul. 15, 2019
May 03, 2019
Apr. 15, 2019
Feb. 21, 2019
Jan. 15, 2019
Oct. 26, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                          
Cash dividends per common share, Declared (in dollars per share)                   $ 0.28 $ 0.27 $ 0.82 $ 0.77
Common Stock                          
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                          
Cash dividends per common share, Declared (in dollars per share)     $ 0.28   $ 0.27   $ 0.27   $ 0.27        
Cash dividends per common share, Paid (in dollars per share)       $ 0.27   $ 0.27   $ 0.27          
Subsequent Event [Member] | Common Stock                          
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                          
Cash dividends per common share, Declared (in dollars per share) $ 0.28                        
Cash dividends per common share, Paid (in dollars per share)   $ 0.28