CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	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