| SUBSEQUENT EVENTS - Schedule of Subsequent Events (Details) - $ / shares | 3 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 05, 2024 | Dec. 29, 2023 | Dec. 05, 2023 | Nov. 30, 2023 | Nov. 03, 2023 | Oct. 31, 2023 | Sep. 29, 2023 | Sep. 15, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 28, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 30, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 29, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 29, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 29, 2021 | Dec. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | |
| Subsequent Event [Line Items] | ||||||||||||||||||||||||||||||||||
| Common stock dividends paid (in USD per share) | $ 0.0825 | $ 0.02 | $ 0.0825 | $ 0.0825 | $ 0.08 | $ 0.08 | $ 0.08 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.07 | $ 0.07 | $ 0.07 | $ 0.0675 | $ 0.0675 | $ 0.0675 | $ 0.0675 | $ 0.0675 | $ 0.0675 | $ 0.065 | $ 0.065 | $ 0.065 | $ 0.065 | $ 0.065 | $ 0.065 | $ 0.9425 | $ 0.795 | |||||||
| Subsequent Event | ||||||||||||||||||||||||||||||||||
| Subsequent Event [Line Items] | ||||||||||||||||||||||||||||||||||
| Common stock dividends paid (in USD per share) | $ 0.0825 | |||||||||||||||||||||||||||||||||
| Preferred stock dividends paid (in USD per share) | $ 0.130208 | |||||||||||||||||||||||||||||||||
| Forecast | Subsequent Event | ||||||||||||||||||||||||||||||||||
| Subsequent Event [Line Items] | ||||||||||||||||||||||||||||||||||
| Common stock dividends paid (in USD per share) | $ 0.0825 | $ 0.0825 | $ 0.2475 | |||||||||||||||||||||||||||||||
| Preferred stock dividends paid (in USD per share) | $ 0.130208 | $ 0.130208 | $ 0.390624 | |||||||||||||||||||||||||||||||