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v3.25.4

DISCONTINUED OPERATION - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2021 | Dec. 31, 2025 | Oct. 31, 2025 | Jun. 04, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) |  |  | 0 |  | 0 |  |
Nonredeemable noncontrolling interest |  |  | $ 197,755 |  | $ 117,395 |  |
Long-term debt |  |  | 0 |  | 117,558 | $ 100,000 |
NOL allocated amount |  |  |  |  | 1,690,842 |  |
Ambac Assurance Corporation | Discontinued Operations, Held-for-Sale or Disposed of by Sale |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Aggregate consideration |  |  |  |  |  |  | $ 420,000
Carrying amount of net assets held-for-sale |  |  | 962,637 |  | 1,002,719 |  |
Loss on disposal | $ 570,145 | $ 687,613 | (570,145) | $ 0 |  |  |
U. S. Federal Net Operating Tax | Interest Expense |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
NOL allocated amount |  |  | 110,494 |  |  |  |
Ambac Assurance [Member] |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
NOL allocated amount |  |  | $ 1,952,621 |  |  |  |
Secured Debt | Ambac UK |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Debt instrument, interest rate |  |  | 0.00% |  |  |  |
Long-term debt, gross |  |  |  |  | 40,600 |  |
Long-term debt |  |  |  |  | $ 18,079 |  |
Debt discount amortization rate |  |  | 7.40% |  |  |  |

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