v3.26.3
Related party transactions - Investments Managed by Related Parties (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]    
Total investments $ 5,713.7 $ 5,602.3
Related Party    
Related Party Transaction [Line Items]    
Third Point Optimized Credit Portfolio 98.8 652.8
Total investments 222.6 770.6
Third Point Enhanced LP | Related Party    
Related Party Transaction [Line Items]    
Investments In Related Party Investment Funds 41.8 82.2
Third Point Insurance Solutions Fund I LLC | Related Party    
Related Party Transaction [Line Items]    
Investments In Related Party Investment Funds 3.7 1.6
Third Point Structured Credit Opportunities Fund | Related Party    
Related Party Transaction [Line Items]    
Investments In Related Party Investment Funds 36.1 0.0
Third Point Venture Offshore Fund I LP | Related Party    
Related Party Transaction [Line Items]    
Investments In Related Party Investment Funds 33.4 27.7
Third Point Venture Offshore Fund II LP | Related Party    
Related Party Transaction [Line Items]    
Investments In Related Party Investment Funds $ 8.8 $ 6.3