v3.25.2
Long-Duration Insurance Contracts - Market Risk Benefits by Asset and Liability Balance (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Market Risk Benefit [Line Items]            
Net $ (6.7) $ (5.2) $ (6.8) $ (6.2) $ (6.3) $ (3.9)
Deferred variable annuities            
Market Risk Benefit [Line Items]            
(Asset) (8.7)   (8.8)      
Liability 2.0   2.0      
Net $ (6.7)   $ (6.8)