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Office Properties and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 3,571 $ 3,464 $ 3,084
Minimum      
Property, Plant and Equipment [Line Items]      
Remaining lease term (in years) 1 year    
Renewal term (in years) 4 years    
Maximum      
Property, Plant and Equipment [Line Items]      
Remaining lease term (in years) 10 years    
Renewal term (in years) 10 years