Deposits - Additional Information (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Deposits [Abstract] | ||
| Certificate of deposits | $ 100.0 | $ 100.0 |
| Overdrawn deposit balances classified as consumer loans | $ 2.5 | $ 2.7 |
| X | ||||||||||
- Definition Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of interest-bearing domestic certificate of deposit liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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