CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|
| Statement of Stockholders' Equity [Abstract] | |||
| Dividends paid, quarterly, per share (in dollars per share) | $ 0.32 | $ 0.30 | $ 0.25 |
| Dividends declared, quarterly, per share (in dollars per share) | $ 0.32 | $ 0.30 | $ 0.25 |