v3.25.4

Deposits (Narrative) (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Sep. 30, 2025
--- | --- | ---
Deposits Liability [Line Items] |  |
CDs in denominations of more than $250 | $ 1,534,429 | $ 1,533,487
Certificates of Deposit |  |
Deposits Liability [Line Items] |  |
Brokered certificates of deposits | $ 879,363 | $ 902,083

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