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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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