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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]        
Cash dividends (usd per share) $ 0.510 $ 0.485 $ 1.02 $ 0.970