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Goodwill and Other Intangible Assets - Other Intangible Assets, Textual (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2024
Schedule of Intangible Assets [Line Items] |  |  |
Additions to goodwill | $ 0 | $ 0 |
Impairment |  |  | $ 0
Additions to intangible assets | $ 0 | $ 0 |
Core Deposits | Premier Commercial Bancorp |  |  |
Schedule of Intangible Assets [Line Items] |  |  |
Useful life | 10 years |  |
Core Deposits | Puget Sound Bancorp |  |  |
Schedule of Intangible Assets [Line Items] |  |  |
Useful life | 10 years |  |
Core Deposits | Washington Banking Company |  |  |
Schedule of Intangible Assets [Line Items] |  |  |
Useful life | 10 years |  |
Core Deposits | Valley Community Bancshares |  |  |
Schedule of Intangible Assets [Line Items] |  |  |
Useful life | 10 years |  |

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