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Securities - Additional Information (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) Securities | Sep. 30, 2023 USD ($) Securities | Sep. 30, 2024 USD ($) Securities | Sep. 30, 2023 USD ($) Securities | Dec. 31, 2023 USD ($)
Debt Securities, Available-for-Sale [Line Items] |  |  |  |  |
Number of available-for-sale securities sold | 0 | 0 | 5 | 16 |
Debt Securities, Pledging Purpose [Extensible Enumeration] | Various Obligations | Various Obligations | Various Obligations | Various Obligations |
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | 160 |  | 160 |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | 155 |  | 155 |  |
Number of held-to-maturity securities in an unrealized loss position | 21 |  | 21 |  |
Number of Positions Held-to-Maturity, Securities in Continuous Unrealized Loss Positions, 12 Months or Longer | 21 |  | 21 |  |
Credit loss provision | $ | $ 0 | $ 0 | $ 0 | $ 0 |
Various Obligations |  |  |  |  |
Debt Securities, Available-for-Sale [Line Items] |  |  |  |  |
Securities with a fair value | $ | $ 39,300,000 |  | $ 39,300,000 |  | $ 45,400,000

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