Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Additional Information (Detail) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
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Sep. 30, 2026
USD ($)
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Sep. 30, 2025
USD ($)
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Sep. 30, 2026
USD ($)
Rating
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Sep. 30, 2025
USD ($)
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Dec. 31, 2025
USD ($)
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Net finance receivables included net deferred origination fees | $ 14.5 | $ 14.5 | $ 15.1 | ||
| Number of FICO band categories | Rating | 6 | ||||
| Accrued interest reversed as a reduction of interest and fee income | $ 7.3 | $ 6.3 | $ 23.3 | $ 20.7 | |
| X | ||||||||||
- Definition The number of FICO band categories the Company uses to assess FICO scores. No definition available.
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| X | ||||||||||
- 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/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of writeoff of accrued interest on financing receivable recognized by reversing interest income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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