v3.26.1
Investments - Schedule of Principal Investments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Segment Reporting [Line Items]    
Total $ 3,068.8 $ 2,879.5
Global Private Equity    
Segment Reporting [Line Items]    
Total 1,481.5 1,384.4
Global Private Equity | NGP Management    
Segment Reporting [Line Items]    
Total 679.4 616.0
Global Credit    
Segment Reporting [Line Items]    
Total 1,178.9 1,151.9
Global Credit | Fortitude Group Holdings, LLC    
Segment Reporting [Line Items]    
Total   722.4
Carlyle AlpInvest    
Segment Reporting [Line Items]    
Total $ 408.4 $ 343.2