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Securities - Narratives (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Securities          
Accrued interest on available-for-sale securities $ 1,700,000   $ 1,700,000   $ 1,600,000
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Interest Receivable   Interest Receivable   Interest Receivable
Securities delinquent on contractual payments $ 0   $ 0   $ 0
Available-for-sale securities sold in the period       $ 29,300,000  
Proceeds from sales of available-for-sale securities 0   0 27,444,000  
Available-for-sale securities, pledged to secure borrowings 0   $ 0    
Loss on sale of available-for-sale securities, gross       1,900,000  
Gains on sale of available-for-sale securities, gross       30,000  
Percentage of aggregate depreciation     3.90%    
Accrued interest receivables written off 0 $ 0 $ 0 $ 0  
Allowance for credit losses on securities $ 0   $ 0   $ 0