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v3.25.2

Business and Basis of Presentation Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2025 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2023
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | $ 168,522 |  | $ 168,522 |  | $ 197,755 |  |  |  |
Preferred Stock, Shares Issued | 0 |  | 0 |  | 0 |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | $ 190,347 | $ 17,079 | $ 190,347 | $ 17,079 | $ 140,860 |  | $ 185,417 | $ 17,079 | $ 17,079
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest |  |  | (741) | 916 |  |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders |  |  | (919) | (1,047) |  |  |  |  |
Redeemable Noncontrolling Interest, Equity, Redemption Value | 190,347 |  | 190,347 |  |  |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 254 | (213) | (1,400) | (914) |  |  |  |  |
Noncontrolling Interest, Change in Redemption Value | (1,241) | (184) | (2,148) | (131) |  |  |  |  |
Temporary Equity, Accretion to Redemption Value, Adjustment |  |  | 2,148 | 131 |  |  |  |  |
Disposal Group, Including Discontinued Operation, Net Assets Held-For Sale | 6,592,417 |  | 6,592,417 |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Assets | 6,636,855 | 7,099,591 | 6,636,855 | 7,099,591 |  | $ 6,267,200 |  |  |
Disposal Group, Including Discontinued Operation, Liabilities | 6,213,024 |  | 6,213,024 |  |  | $ 5,887,685 |  |  |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent | (52,151) | 14,182 | $ (82,398) | 38,322 |  |  |  |  |
Short Term Debt Duration Fee |  |  | 1.00% |  |  |  |  |  |
Shor term debt extension fee |  |  | 1.00% |  |  |  |  |  |
Short term debt minimum cash balance required |  |  | $ 30,000 |  |  |  |  |  |
Repayments of Debt, Maturing in More than Three Months |  |  | 10,000 |  |  |  |  |  |
Put / call option exercise |  |  | (1,815) |  |  |  |  |  |
Payment for Put/Call Option |  |  | 1,068 |  |  |  |  |  |
Payments to Noncontrolling Interests | $ 2,967 |  | $ (4,036) |  |  |  |  |  |
SOFR + Credit Agreement | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.50% |  | 7.50% |  |  |  |  |  |
Discontinued Operations, Held-for-Sale or Disposed of by Sale | Ambac Assurance Corporation [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Fair Value, Net | $ 402,239 |  | $ 402,239 |  | 399,727 |  |  |  |
Disposal Group, Including Discontinued Operation, Estimated Closing Costs | 7,535 |  | 7,535 |  | 7,235 |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration, Fair Value, Net, After Allowance For Closing Costs | 394,704 |  | 394,704 |  | 392,492 |  |  |  |
Disposal Group, Including Discontinued Operation, Net Assets Held-For Sale | 1,032,305 |  | 1,032,305 |  | 962,637 |  |  |  |
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax |  |  | 637,601 |  | 570,145 |  |  |  |
Disposal Group, Including Discontinued Operation, Investment | 2,321,619 |  | 2,321,619 |  | 2,226,505 |  |  |  |
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents | 13,023 |  | 13,023 |  | 8,322 |  |  |  |
Disposal Group, Including Discontinued Operation, Premiums Receivable, Net | 218,780 |  | 218,780 |  | 217,096 |  |  |  |
Disposal Group, Including Discontinued Operation, Reinsurance Recoverable For Paid And Unpaid Claims And Claims Adjustments | 26,359 |  | 26,359 |  | 25,274 |  |  |  |
Disposal Group, Including Discontinued Operation, Prepaid Reinsurance Premiums | 74,180 |  | 74,180 |  | 79,074 |  |  |  |
Disposal Group, Including Discontinued Operation, Subrogation Recoverable | 110,838 |  | 110,838 |  | 113,962 |  |  |  |
Disposal Group, Including Discontinued Operation, Intangible Assets | 208,424 |  | 208,424 |  | 213,457 |  |  |  |
Disposal Group, Including Discontinued Operation, Other Assets | 71,572 |  | 71,572 |  | 49,396 |  |  |  |
Disposal Group, Including Discontinued Operation, Variable Interest Entity Assets | 4,185,223 |  | 4,185,223 |  | 3,904,259 |  |  |  |
Disposal Group, Including Discontinued Operation, Valuation Allowance On Assets Held-For-Sale | (637,601) |  | (637,601) |  | (570,145) |  |  |  |
Disposal Group, Including Discontinued Operation, Assets | 6,592,417 |  | 6,592,417 |  | 6,267,200 |  |  |  |
Disposal Group, Including Discontinued Operation, Unearned Premiums | 227,968 |  | 227,968 |  | 228,177 |  |  |  |
Disposal Group, Including Discontinued Operation, Liability for Claims and Claims Adjustment Expense | 600,916 |  | 600,916 |  | 577,167 |  |  |  |
Disposal Group, Including Discontinued Operation, Reinsurance Payable | 54,712 |  | 54,712 |  | 56,404 |  |  |  |
Disposal Group, Including Discontinued Operation, Liabilities, Long-Term Debt And Accrued Interest | 1,078,551 |  | 1,078,551 |  | 1,046,658 |  |  |  |
Disposal Group, Including Discontinued Operation, Other Liabilities | 105,346 |  | 105,346 |  | 105,772 |  |  |  |
Disposal Group, Including Discontinued Operation, Variable Interest Entity Liabilities | 4,145,531 |  | 4,145,531 |  | 3,873,507 |  |  |  |
Disposal Group, Including Discontinued Operation, Liabilities | 6,213,024 |  | 6,213,024 |  | 5,887,685 |  |  |  |
Disposal Group, Including Discontinued Operation, Revenue | (28,798) | (53,488) | (55,595) | (106,546) |  |  |  |  |
Disposal Group, Including Discontinued Operation, Operating Expense | (26,171) | $ (36,788) | (67,767) | (61,080) |  |  |  |  |
Disposal Group, Including Discontinued Operation, Restricted Cash | 57,754 |  | 57,754 |  | $ 246,031 |  |  |  |
Disposal Group, Including Discontinued Operation, Reclassification From AOCI At Closing | $ (86,828) |  | (86,828) |  |  |  |  |  |
Retained Earnings [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Change in Redemption Value |  |  | $ (12,424) | $ (139) |  |  |  |  |

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