v3.26.1
Municipal Bond Guarantee Insurance - Schedule of Municipal Guarantee Insurance Contracts, Premium Received Over Contract Period (Details) - Variable Interest Entity, Primary Beneficiary - HG Global
$ in Millions
Mar. 31, 2026
USD ($)
Guarantor Obligations [Line Items]  
April 1, 2026 - December 31, 2026 $ 21.1
2027 26.8
2028 25.2
2029 23.7
2030 22.3
2031 and thereafter 209.4
Total gross unearned insurance premiums $ 328.5