v3.25.1
Investments - Schedule of Fair Value of Foreign Currency Exchange Forward Contracts (Details) - Foreign Currency Exchange Forward Contracts - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Foreign currency exchange, fair value $ (2.3) $ 2.7
Asset manager investment exposure    
Schedule of Investments [Line Items]    
Foreign currency exchange, fair value (2.3) 2.7
Open contracts in a gain position    
Schedule of Investments [Line Items]    
Foreign currency exchange, notional amount 0.0 151.0
Foreign currency exchange, fair value 0.0 2.7
Open contracts in a loss position    
Schedule of Investments [Line Items]    
Foreign currency exchange, notional amount 105.4 0.0
Foreign currency exchange, fair value $ (2.3) $ 0.0