XML 75 R60.htm IDEA: XBRL DOCUMENT v3.23.1
Investments - Schedule of Net Investment Earnings (Loss) (Details) - NGP Management - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Schedule of Equity Method Investments [Line Items]    
Management fee related revenues from NGP Management $ 18.1 $ 17.0
Expenses related to the investment in NGP Management (3.4) (2.8)
Amortization of basis differences from the investment in NGP Management 0.0 (0.3)
Net investment income from NGP Management $ 14.7 $ 13.9