Securities - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
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| Schedule of Available-for-sale Securities [Line Items] | |||||
| Investments pledged, carrying value | $ 239,100,000 | $ 239,100,000 | $ 221,900,000 | ||
| Other securities | 13,994,000 | 13,994,000 | 14,400,000 | ||
| Gross realized gain (losses) | 0 | $ 0 | 0 | $ 0 | |
| Federal Home Loan Bank of Cincinnati and Indianapolis Stock [Member] | |||||
| Schedule of Available-for-sale Securities [Line Items] | |||||
| Other securities | 14,000,000 | 14,000,000 | 14,400,000 | ||
| Federal Reserve's Bank Term Funding Program [Member] | |||||
| Schedule of Available-for-sale Securities [Line Items] | |||||
| Investments pledged, carrying value | $ 29,000,000 | $ 29,000,000 | $ 29,900,000 | ||
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- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Includes other investments and securities that are not at fair value as of the balance sheet date and those that are not accounted for under the equity method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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