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v3.25.2

SECURITIES - Narrative (Details) | 6 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) security | Mar. 31, 2024 USD ($) | Sep. 30, 2024 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |
Proceeds from sales of securities available for sale | $ 217,883,000 | $ 0 |
AFS number of securities in an unrealized loss position (in securities) | security | 152 |  |
Federal reserve bank stock | $ 19,700,000 |  | $ 19,700,000
Federal home loan bank stock | 4,600,000 |  | 16,300,000
Marketable |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Equity securities | 3,600,000 |  | 3,300,000
Unrealized gain (loss) | (100,000) | 0 |
Non-marketable |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Equity securities | 12,800,000 |  | 11,800,000
Unrealized gain (loss) | 800,000 | $ 400,000 |
Equity securities without readily determinable fair value, amount | 14,700,000 |  | $ 13,600,000
Realized gain on equity securities | $ 400,000 |  |
Number of equity securities sold | security | 0 |  |

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