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REGISTRATION STATEMENT AND COMMON EQUITY OFFERINGS (Details) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 04, 2024 | Sep. 30, 2024 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Aug. 31, 2024 USD ($) | Aug. 31, 2022 USD ($)
Government Assistance [Line Items] |  |  |  |  |
Reverse stock split, conversion ratio | 0.5 |  |  |  |
Sale of stock, aggregate value of securities authorized |  | $ 700,000,000.0 |  |  |
Sale of stock, remaining capacity of aggregate value of securities authorized |  | $ 689,000,000.0 |  |  |
Common Stock At-the-Market Offerings |  |  |  |  |
Government Assistance [Line Items] |  |  |  |  |
Sale of stock, aggregate offering price authorized |  |  |  | $ 150,000,000 | $ 100,000,000.0
Sale of stock, number of shares issued in transaction (in shares) | shares |  | 476,138 | 8,774,101 |  |
Sale of stock, price (in USD per share) | $ / shares |  | $ 23.10 | $ 9.96 |  |
Sale of stock, gross proceeds from transaction |  | $ 11,000,000.0 | $ 87,400,000 |  |
Sale of stock, consideration received on transaction |  | 10,800,000 | $ 85,900,000 |  |
Sale of stock, remaining capacity of authorized offering price |  | $ 139,000,000 |  |  |

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