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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Statement of Stockholders' Equity [Abstract] |  |  |  |
Cash dividends declared and paid, at a quarterly amount per class A common stock (in dollars per share) | $ 0.375 | $ 0.32 | $ 0.375 | $ 0.32

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- Definition Cash dividends declared and paid, quarterly, per as-converted share + References No definition available. + Details
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