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Shareholder's Equity - Supplemental Equity Information (Details) - $ / shares
3 Months Ended
Sep. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Equity [Abstract]          
Dividends declared per share (in dollars per share) $ 0.16 $ 0.16 $ 0.16 $ 0.15 $ 0.15