Borrowings - Summary of Collateral Pledged to Secure Repurchase Agreements Accounted for as Secured Borrowings (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Short-Term Debt [Abstract]
Securities of U.S. Government agencies and mortgage-backed securities of government agencies pledged, fair value	$ 36,002	$ 32,775
Repurchase agreements	$ 35,843	$ 32,550

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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