FAIR VALUE - Schedule of Valuation Techniques and Quantitative Information Utilized in Determining Fair Value of Consolidated Funds’ Level III Investments (Details) - Consolidated Funds $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Real estate, at fair value	$ 206,181	$ 175,353
Investments, at fair value	4,946,862	5,143,677
Level III
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	4,062,983	$ 3,603,942
Level III | Discounted Cash Flow / Market Approach (Comparable Companies) | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs		0.12
Level III | Communication services | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 4,688
Level III | Communication services | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.17
Level III | Communication services | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.17
Level III | Communication services | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.17
Level III | Communication services | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 17,474
Level III | Communication services | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	(67)
Level III | Consumer discretionary: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value		$ 55,326
Real estate-oriented, at fair value	$ 60,960	$ 61,357
Level III | Consumer discretionary: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs		0.13
Real estate oriented, measurement input	20.00%	20.00%
Level III | Consumer discretionary: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs		0.17
Real estate oriented, measurement input	20.00%	20.00%
Level III | Consumer discretionary: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs		0.16
Real estate oriented, measurement input	20.00%	20.00%
Level III | Consumer discretionary: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value		$ 351
Level III | Consumer discretionary: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value		11,311
Level III | Energy: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 96,532	$ 15,873
Level III | Energy: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.14	0.14
Level III | Energy: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.16	0.14
Level III | Energy: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.15	0.14
Level III | Energy: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 450	$ 2,325
Level III | Energy: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value		69,871
Level III | Energy: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 1,250
Level III | Energy: | Market Approach (Comparable Companies) | Minimum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1
Level III | Energy: | Market Approach (Comparable Companies) | Maximum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1
Level III | Energy: | Market Approach (Comparable Companies) | Weighted Average | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1
Level III | Financials: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 94,375	$ 26,689
Level III | Financials: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.05	0.12
Level III | Financials: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.14	0.15
Level III | Financials: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.12	0.15
Level III | Financials: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 32,112	$ 26,102
Level III | Financials: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	16,933	3,646
Level III | Financials: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value		$ 20,520
Level III | Financials: | Market Approach (Comparable Companies) | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	21,620
Level III | Financials: | Market Approach (Comparable Companies) | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 1,938
Level III | Financials: | Market Approach (Comparable Companies) | Minimum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.5	0.5
Level III | Financials: | Market Approach (Comparable Companies) | Minimum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	6.5
Level III | Financials: | Market Approach (Comparable Companies) | Maximum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0	1.0
Level III | Financials: | Market Approach (Comparable Companies) | Maximum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	6.5
Level III | Financials: | Market Approach (Comparable Companies) | Weighted Average | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.9	0.7
Level III | Financials: | Market Approach (Comparable Companies) | Weighted Average | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	6.5
Level III | Financials: | Expected Recovery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 11
Level III | Industrials: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 75,017	$ 79,824
Level III | Industrials: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0	0.11
Level III | Industrials: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.20	0.15
Level III | Industrials: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.15	0.13
Level III | Industrials: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 10,771	$ 452
Level III | Industrials: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	79,595	51,788
Level III | Industrials: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 532	$ 62,544
Level III | Industrials: | Market Approach (Comparable Companies) | Minimum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	7.0	9.8
Level III | Industrials: | Market Approach (Comparable Companies) | Maximum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	7.0	9.8
Level III | Industrials: | Market Approach (Comparable Companies) | Weighted Average | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	7.0	9.8
Level III | Materials: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 161,879	$ 306,319
Level III | Materials: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.13	0.10
Level III | Materials: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.14	0.15
Level III | Materials: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.13	0.12
Level III | Materials: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 228,948
Level III | Materials: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	22,744	$ 193,614
Level III | Real estate: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	198,904	211,211
Real estate, at fair value	$ 145,221	$ 113,996
Level III | Real estate: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.12	0.13
Real estate securities, measurement inputs	4.00%	4.00%
Level III | Real estate: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.19	0.15
Real estate securities, measurement inputs	26.00%	27.00%
Level III | Real estate: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.15	0.15
Real estate securities, measurement inputs	15.00%	14.00%
Level III | Real estate: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 26,839	$ 37,419
Level III | Real estate: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	39,981	35,084
Level III | Real estate: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 144,469	$ 193,771
Level III | Real estate: | Market Approach (Comparable Companies) | Minimum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0	1.0
Level III | Real estate: | Market Approach (Comparable Companies) | Maximum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0	1.0
Level III | Real estate: | Market Approach (Comparable Companies) | Weighted Average | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0	1.0
Level III | Other: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 585,355	$ 551,047
Level III | Other: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0	0.09
Level III | Other: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.27	0.19
Level III | Other: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	0.15	0.18
Level III | Other: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 62,281	$ 4,316
Level III | Other: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	46,921	1,612
Level III | Other: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	62,953
Level III | Other: | Market Approach (Comparable Companies) | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	19,529	19,820
Level III | Other: | Market Approach (Comparable Companies) | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, at fair value	$ 9,604	$ 1,345
Level III | Other: | Market Approach (Comparable Companies) | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0
Level III | Other: | Market Approach (Comparable Companies) | Minimum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	6.5	6.0
Level III | Other: | Market Approach (Comparable Companies) | Minimum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1	0.3
Level III | Other: | Market Approach (Comparable Companies) | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0
Level III | Other: | Market Approach (Comparable Companies) | Maximum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	7.0	6.0
Level III | Other: | Market Approach (Comparable Companies) | Maximum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1	0.3
Level III | Other: | Market Approach (Comparable Companies) | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	1.0
Level III | Other: | Market Approach (Comparable Companies) | Weighted Average | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	7.0	6.0
Level III | Other: | Market Approach (Comparable Companies) | Weighted Average | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit-oriented investments, measurement inputs	2.1	0.3
Level III | Equity investments: | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 213,813	$ 102,981
Level III | Equity investments: | Discounted Cash Flow | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.04	0.12
Level III | Equity investments: | Discounted Cash Flow | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.18	0.20
Level III | Equity investments: | Discounted Cash Flow | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.14	0.15
Level III | Equity investments: | Recent Market Information
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 5,979	$ 14,102
Level III | Equity investments: | Recent Transaction Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	202,057	179,009
Level III | Equity investments: | Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	850,420
Level III | Equity investments: | Market Approach (Comparable Companies) | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value		670,215
Level III | Equity investments: | Market Approach (Comparable Companies) | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	458,953	396,688
Level III | Equity investments: | Market Approach (Comparable Companies) | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 26,445	$ 60,841
Level III | Equity investments: | Market Approach (Comparable Companies) | Minimum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	1.0	0.9
Level III | Equity investments: | Market Approach (Comparable Companies) | Minimum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	5.0	2.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Minimum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	1.0	1.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Maximum | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	1.0	1.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Maximum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	14.0	11.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Maximum | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	2.1	2.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Weighted Average | Multiple of Underlying Assets
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	1.0	1.0
Level III | Equity investments: | Market Approach (Comparable Companies) | Weighted Average | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	9.6	8.5
Level III | Equity investments: | Market Approach (Comparable Companies) | Weighted Average | Revenue Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	1.2	1.5
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 25,295	$ 22,573
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.11	0.12
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Minimum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	10.0	9.0
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.11
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Maximum | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	12.0	11.0
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	0.11	0.12
Level III | Equity investments: | Discounted Cash Flow / Market Approach (Comparable Companies) | Weighted Average | Earning Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, measurement inputs	11.0	10.0
Level III | Equity investments: | Expected Recovery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 8,903
Level III | Equity investments: | Black Scholes
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity investments, at fair value	$ 1,299