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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Summary Of Significant Accounting Policies [Line Items] |  |
Amount deposit accounts exceeded FDIC insured limit | $ 473,500,000 | $ 332,200,000
Risk pool surplus or deficits, settlement period after performance year | 18 months |
Receivables, net - related parties | $ 381,215,000 | 275,990,000
Aggregate loans receivable | $ 54,400,000 | 51,300,000
Maximum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Risk pool surplus or deficits, settlement period after performance year | 12 months |
Minimum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Risk pool surplus or deficits, settlement period after performance year | 6 months |
Senior Secured Promissory Note |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Principal balance payable in monthly installments | $ 250,000 |
Maturity date | Jan. 11, 2031 |
Related Party |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Receivables, net - related parties | $ 64,700,000 | 50,300,000
Aggregate loans receivable | $ 1,700,000 | $ 100,000

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