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Securities - Narrative (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Allowance for credit losses - held to maturity securities | $ 32 | $ 32
Secure government, public and trust deposits |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available for sale securities pledged as collateral | 799,198 | 880,715
Short-term borrowings |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available for sale securities pledged as collateral | $ 14,106 | $ 14,329

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