v3.26.1
FAIR VALUE - Schedule of Investments and Other Financial Instruments of Consolidated Funds by Fair-Value Hierarchy Level (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives $ 21,202 $ 9,070
Total derivatives (41,030) (48,893)
Consolidated Funds    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 5,515,730 5,012,977
Total derivatives 21,202 9,070
Total assets 5,536,932 5,022,047
Total derivatives (41,030) (48,893)
Total liabilities (41,030) (48,893)
Consolidated Funds | Foreign-currency forward contracts    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 19,190 7,800
Total derivatives (39,176) (47,032)
Consolidated Funds | Swaps    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 2,012 1,270
Total derivatives (1,548) 0
Consolidated Funds | Options and futures    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 24  
Total derivatives (306) (1,861)
Consolidated Funds | Corporate debt – bank debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 1,827,407 1,743,127
Consolidated Funds | Corporate debt – all other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 371,716 289,522
Consolidated Funds | Equities – common stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 2,135,273 1,849,178
Consolidated Funds | Equities – preferred stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 812,581 778,610
Consolidated Funds | Real estate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 368,753 352,540
Consolidated Funds | Level I    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 192,461 199,510
Total derivatives 0 0
Total assets 192,461 199,510
Total derivatives 0 0
Total liabilities 0 0
Consolidated Funds | Level I | Foreign-currency forward contracts    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Total derivatives 0 0
Consolidated Funds | Level I | Swaps    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Total derivatives 0 0
Consolidated Funds | Level I | Options and futures    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Consolidated Funds | Level I | Corporate debt – bank debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 0 0
Consolidated Funds | Level I | Corporate debt – all other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 0 0
Consolidated Funds | Level I | Equities – common stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 190,171 197,832
Consolidated Funds | Level I | Equities – preferred stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 2,290 1,678
Consolidated Funds | Level I | Real estate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 0 0
Consolidated Funds | Level II    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 541,020 417,727
Total derivatives 21,202 9,070
Total assets 562,222 426,797
Total derivatives (41,030) (48,893)
Total liabilities (41,030) (48,893)
Consolidated Funds | Level II | Foreign-currency forward contracts    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 19,190 7,800
Total derivatives (39,176) (47,032)
Consolidated Funds | Level II | Swaps    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 2,012 1,270
Total derivatives (1,548) 0
Consolidated Funds | Level II | Options and futures    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives (306) (1,861)
Consolidated Funds | Level II | Corporate debt – bank debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 158,971 116,518
Consolidated Funds | Level II | Corporate debt – all other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 247,746 209,394
Consolidated Funds | Level II | Equities – common stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 134,303 91,815
Consolidated Funds | Level II | Equities – preferred stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 0 0
Consolidated Funds | Level II | Real estate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 0 0
Consolidated Funds | Level III    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 4,782,249 4,395,740
Total derivatives 0 0
Total assets 4,782,249 4,395,740
Total derivatives 0 0
Total liabilities 0 0
Consolidated Funds | Level III | Foreign-currency forward contracts    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Total derivatives 0 0
Consolidated Funds | Level III | Swaps    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Total derivatives 0 0
Consolidated Funds | Level III | Options and futures    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total derivatives 0 0
Consolidated Funds | Level III | Corporate debt – bank debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 1,668,436 1,626,609
Consolidated Funds | Level III | Corporate debt – all other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 123,970 80,128
Consolidated Funds | Level III | Equities – common stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 1,810,799 1,559,531
Consolidated Funds | Level III | Equities – preferred stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments 810,291 776,932
Consolidated Funds | Level III | Real estate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Total investments $ 368,753 $ 352,540