CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Dividends paid on common stock per share (in dollars per share)	$ 0.25	$ 0.24	$ 0.49	$ 0.47
Dividends paid on preferred stock, per share (in dollars per share)	$ 12.1875	$ 12.1875	$ 24.3750	$ 24.3750