v3.26.3
Related party transactions - Related Party Fees (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Related Party Transaction [Line Items]        
Total management, advisory and performance fees to related parties $ (0.1) $ 1.4 $ 1.5 $ 3.4
Management and advisory fees        
Related Party Transaction [Line Items]        
Total management, advisory and performance fees to related parties (0.1) 1.4 1.5 3.8
Performance fees        
Related Party Transaction [Line Items]        
Total management, advisory and performance fees to related parties $ 0.0 $ 0.0 $ 0.0 $ (0.4)