Short-Term Borrowings - Summary of Repurchase Agreements and Related Collateral Accounted for as Secured Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Short-Term Debt [Abstract]
Securities of U.S. Government Agencies and mortgage-backed securities of government agencies pledged, fair value	$ 27,690	$ 31,574
Repurchase agreements	$ 27,648	$ 31,517

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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