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UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]        
Dividends per share (USD per share) $ 0.25 $ 0.195 $ 0.64 $ 0.585