Loans - Narrative, Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 9,600	$ 8,700
Collateral securing loans	0
Real estate loans: | Commercial mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	6,100
Real estate loans: | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	1,700
Real estate loans: | Commercial and industrial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	839
Real estate loans: | One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Collateral-dependent impaired loans	$ 980