Servicing Assets - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items] | |||
| Serviced loans sold to unaffiliated non government sponsored parties | $ 615.9 | $ 560.1 | |
| Residential mortgage loans | 62.5 | 37.0 | |
| Servicing fee income | $ 5.3 | $ 5.4 | $ 5.2 |
| Contractually Specified Servicing Fee Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Noninterest Income, Other Operating Income | Noninterest Income, Other Operating Income | Noninterest Income, Other Operating Income |
| Amortization expense | $ 2.5 | $ 2.7 | $ 2.5 |
| Fair value of servicing rights | $ 8.5 | $ 7.9 | |
| Minimum | |||
| Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items] | |||
| Discount rates ranging | 9.67% | 10.81% | |
| Prepayment speeds | 20.19% | 21.20% | |
| Maximum | |||
| Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items] | |||
| Discount rates ranging | 18.85% | 27.26% | |
| Prepayment speeds | 27.99% | 15.44% | |
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- Definition Amortization expense of service asset liability. No definition available.
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- Definition Residential mortgage loans. No definition available.
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- Definition Serviced loans sold to unaffiliated non government sponsored parties. No definition available.
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- Definition Indicates line item in statement of income or comprehensive income that includes contractually specified servicing fee income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Discount rate used to estimate the fair value of servicing assets and servicing liabilities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Estimated rate of prepayments of principal on servicing assets and servicing liabilities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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