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Fair Value Measurements - Quantitative Information, Level 3 (Details) - Level 3 - Nonrecurring - Impaired Loans - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Collateral-dependent loans $ 178 $ 182
Minimum | Measurement Input, Discount Rate | Valuation, Market Approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjustments to reflect current conditions and selling costs 16.70% 14.60%
Maximum | Measurement Input, Discount Rate | Valuation, Market Approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjustments to reflect current conditions and selling costs 16.70% 14.60%
Weighted Average | Measurement Input, Discount Rate | Valuation, Market Approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Adjustments to reflect current conditions and selling costs 16.70% 14.60%