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REGISTRATION STATEMENT AND COMMON EQUITY OFFERINGS (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Aug. 31, 2024
Government Assistance [Line Items] |  |  |
Sale of stock, aggregate value of securities authorized | $ 700,000,000.0 |  |
Sale of stock, remaining capacity of aggregate value of securities authorized | $ 519,300,000 |  |
Common Stock At-the-Market Offerings |  |  |
Government Assistance [Line Items] |  |  |
Sale of stock, aggregate offering price authorized |  |  | $ 150,000,000
Sale of stock, number of shares issued in transaction (in shares) | 362,482 | 476,138 |
Sale of stock, price (in USD per share) | $ 26.44 | $ 23.10 |
Sale of stock, gross proceeds from transaction | $ 9,600,000 | $ 11,000,000.0 |
Sale of stock, consideration received on transaction | 9,400,000 | $ 10,800,000 |
Sale of stock, remaining capacity of authorized offering price | $ 129,400,000 |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
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