Related Party Transactions - Additional Information (Detail) $ in Thousands	Dec. 31, 2025 USD ($) Company	Dec. 31, 2024 USD ($)
Related Party Transaction [Line Items]
Deposits	$ 2,554,752	$ 2,360,582
Director [Member]
Related Party Transaction [Line Items]
Number of companies owned by a director \| Company	2
Related Party [Member]
Related Party Transaction [Line Items]
Deposits	$ 56,266	$ 64,441

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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+ Details