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Significant Accounting Policies and Basis of Presentation - Narrative (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Accounting Policies [Abstract] |  |
Average reserve balances required to be maintained with federal reserve bank | $ 0.0 | $ 0.0
Contractual payment of principal duration (days) | 90 days |
Contractual terms for loans (months) | 6 months |
Maximum loan to value ratio | 80.00% |
Threshold period past due, writeoff | 120 days |
Percentage of tax position that will be realized or sustained upon examination | 50.00% |

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- Definition Threshold period for when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-14 + Details
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