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Borrowings - Schedule of Available Unused Lines of Credit (Parenthetical) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Short-Term Debt [Line Items] |  |
Federal Home Loan Bank, advances, general debt obligations, disclosures, collateral pledged | $ 60.9 | $ 61.7
Collateral exposure with FHLB in form of advances | 45.0 | 40.0
Collateral pledged in excess available to utilize additional credit | $ 15.9 | $ 21.7

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