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Fair Value - Quantitative Information about MSR (Details) - Level 3 - Valuation Technique, Discounted Cash Flow - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Discounted cash flow $ 2,164 $ 2,483
Fair Value, Measurements, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Constant prepayment rate 7.00% 7.00%
Discount rate 11.00% 11.00%