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Loans - Narrative, Collateral-Dependent Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]    
Collateral-dependent impaired loans $ 7,900 $ 7,400
Real estate loans: | Commercial mortgage    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Collateral-dependent impaired loans 5,200  
Real estate loans: | Multifamily    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Collateral-dependent impaired loans 2,300  
Real estate loans: | One-to-four family residential mortgage    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Collateral-dependent impaired loans $ 351