CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Statement of Stockholders' Equity [Abstract] | ||||
| Dividends on common stock per share (in dollars per share) | $ 0.27 | $ 0.27 | $ 0.54 | $ 0.53 |
| Dividends on preferred stock per share (in dollars per share) | $ 12.1875 | $ 12.1875 | $ 24.3750 | $ 24.3750 |