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Municipal Bond Guarantee Insurance - Schedule of Municipal Bond Guarantee Insured Obligations (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) contract | Dec. 31, 2023 USD ($) contract
HG Global |  |
Guarantor Obligations [Line Items] |  |
Contracts outstanding | contract | 15,524 | 14,485
Remaining weighted average contract period (in years) | 12 years 3 months 18 days | 12 years 2 months 12 days
Outstanding first loss exposure from policies assumed (in millions) | $ 17,667,200 | $ 16,341,000
Total gross unearned insurance premiums | $ 287,000 | $ 273,900
HG/BAM |  |
Guarantor Obligations [Line Items] |  |
Remaining weighted average contract period (in years) |  | 11 years 1 month 6 days
Outstanding first loss exposure from policies assumed (in millions) |  | $ 109,673,800
Total gross unearned insurance premiums |  | 325,800
Total debt service outstanding |  | 165,686,000
Interest |  | $ 56,012,200

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