v3.25.2
Investment Securities - Investments In Private Equity Funds Subject to Lock-Up Periods (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]    
1 – 3 years $ 52.9  
3 – 5 years 14.2  
5 – 10 years 153.1  
>10 years 26.8  
Total 2,307.1 $ 2,150.2
Private equity funds    
Debt and Equity Securities, FV-NI [Line Items]    
Total $ 247.0