| Servicing Assets - Summary of Activity in Servicing Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended | |
|---|---|---|
| Mar. 31, 2025 | Mar. 31, 2024 | |
| Transfers and Servicing [Abstract] | ||
| Balance at beginning of period | $ 6,457 | $ 7,070 | 
| Addition related to sale of loans | 657 | 514 | 
| Amortization | (692) | (694) | 
| Balance at end of period | $ 6,422 | $ 6,890 | 
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- Definition Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount conveyed to unrelated parties of contract to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- References No definition available. 
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