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Shareholders' Equity - Dividends (Details) - $ / shares
3 Months Ended
Sep. 01, 2020
Sep. 30, 2020
Jun. 30, 2020
Sep. 30, 2019
Jun. 30, 2019
Oct. 26, 2020
Equity [Abstract]            
Dividends declared per common share (dollars per share) $ 0.55 $ 0.55 $ 0.55 $ 0.50 $ 0.50  
Subsequent Event            
Dividends Payable [Line Items]            
Dividends payable (dollars per share)           $ 0.55