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Related Party Transactions (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jul. 31, 2025 | Mar. 31, 2026 | Mar. 31, 2025 | Feb. 28, 2026 | Jan. 01, 2026 | Dec. 31, 2025
Related Party Transaction [Line Items] |  |  |  |  |  |
Payments of distributions to affiliates |  | $ 139 | $ 0 |  |  |
Preferred stock, issued (in shares) |  | 10,423,296 |  |  |  |
Series A Convertible Preferred Stock |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Preferred stock, issued (in shares) |  | 10,423,296 |  | 423,296 |  | 10,000,000
Rook |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Right to exchange and sell limited liability company shares by lender upon default (in shares) |  | 15,000,000 |  |  |  |
Related Party |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity funded portion, percentage |  |  |  |  | 50.00% |
Residual commission buyout agreement | $ 1 |  |  |  |  |
Payments in connection with residual commission buyouts | 1 |  |  |  |  |
Contingent payments in connection with residual commission buyouts | $ 0 |  |  |  |  |
Payments of distributions to affiliates |  | $ 139 |  |  |  |
Related Party | Series A Convertible Preferred Stock |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Preferred stock, issued (in shares) |  | 423,296 |  |  |  |

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