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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
3 Months Ended 9 Months Ended
Jul. 31, 2020
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Statement Of Stockholders Equity [Abstract]          
Common Stock Dividends Per Share Declared $ 0.05 $ 0.05 $ 0.03 $ 0.15 $ 0.09