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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Oct. 19, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Subsequent Event [Line Items]          
Cash dividends declared per common share   $ 0.25 $ 0.23 $ 0.73 $ 0.69
Subsequent Event          
Subsequent Event [Line Items]          
Cash dividends declared per common share $ 0.25        
Dividends $ 10.8