Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Common stock, dividends per share declared (in dollars per share)	$ 0.685	$ 0.65	$ 2.055	$ 1.95
Preferred stock dividends per share declared (in dollars per share)	$ 0.36875	$ 0.36875	$ 1.10625	$ 1.10625