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Investment Securities - Related Party (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Purchases of investment securities - related party			$ 5,000	$ 0
Investment securities - related party	$ 29,958		29,958		$ 24,406
Unrealized holding gain on available for sale securities - related party	1,300	$ 1,300	600	$ 1,700
Related Party \| Stilwell Value, LLC \| Stilwell Activist Investments, L.P.
Schedule of Equity Method Investments [Line Items]
Management fees, quarterly rate (as a percent)						0.25%
Management fees, annual rate (as a percent)						1.00%
Incentive fee (as a percent)						20.00%
Stilwell Activist Investments, L.P. \| Related Party
Schedule of Equity Method Investments [Line Items]
Purchases of investment securities - related party			5,000		$ 10,000	$ 500	$ 10,000
Percentage of investor securities (as a percent)					38.00%
Percentage of investor subsidiary securities (as a percent)					0.00%
Investment securities - related party	$ 30,000		$ 30,000		$ 24,400