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Securities - Additional Information (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Securities
Sep. 30, 2024
USD ($)
Securities
Sep. 30, 2025
USD ($)
Securities
Sep. 30, 2024
USD ($)
Securities
Dec. 31, 2024
USD ($)
Debt Securities, Available-for-Sale [Line Items]          
Number of available-for-sale securities sold 0 0 0 5  
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions 167   167    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions 153   153    
Number of held-to-maturity securities in an unrealized loss position 18   18    
Number of Positions Held-to-Maturity, Securities in Continuous Unrealized Loss Positions, 12 Months or Longer 17   17    
Credit loss provision | $ $ 0 $ 0 $ 0 $ 0  
Various Obligations          
Debt Securities, Available-for-Sale [Line Items]          
Securities with a fair value | $ $ 39,800,000   $ 39,800,000   $ 36,900,000