v3.26.3
Segment Reporting - Revenue Adjustments (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Total revenues $ 334.1 $ 332.7 $ 1,711.6 $ 2,878.7
Reconciling Items        
Segment Reporting [Line Items]        
Unrealized performance and fee related performance revenues (815.1) (632.0) (1,685.1) (498.3)
Unrealized principal investment income (loss) (13.6) (7.4) (132.7) 35.1
Adjustments related to expenses associated with investments in NGP Management and its affiliates (11.2) (12.3) (34.0) (120.8)
Non-controlling interests and other adjustments to present certain costs on a net basis (10.2) 56.5 91.3 254.3
Total revenues (835.4) (613.2) (1,693.2) (390.8)
Elimination of revenues of Consolidated Funds        
Segment Reporting [Line Items]        
Total revenues $ 14.7 $ (18.0) $ 67.3 $ (61.1)