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Derivatives - Summary of Gross Notional Amount Derivatives (Detail) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Customers [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 242,672	$ 247,727
Financial Institutions Asset Position [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 242,672	$ 247,727

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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