v3.26.3
Municipal Bond Guarantee Reinsurance - Schedule of Municipal Guarantee Insurance Contracts, Premium Received Over Contract Period (Details) - Variable Interest Entity, Primary Beneficiary - HG Global
$ in Millions
Sep. 30, 2026
USD ($)
Guarantor Obligations [Line Items]  
October 1, 2026 - December 31, 2026 $ 7.3
2027 28.4
2028 26.9
2029 25.3
2030 23.9
2031 and thereafter 230.7
Total gross unearned insurance premiums $ 342.5