v3.25.2
INVESTMENTS - Schedule of Net Investment Income (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Net Investment Income [Line Items]        
Realized gain value $ 9.9 $ 10.5 $ 19.3 $ 20.3
Investment expense (0.5) (0.5) (1.2) (1.1)
Net investment income 9.4 10.0 18.1 19.2
Interest on fixed maturities and short-term investments        
Net Investment Income [Line Items]        
Realized gain value 3.6 2.3 7.0 4.0
Interest on cash and cash equivalents        
Net Investment Income [Line Items]        
Realized gain value $ 6.3 $ 8.2 $ 12.3 $ 16.3