FAIR VALUE - Summary of Valuation Techniques and Quantitative Information (Details) - Consolidated Funds $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Real estate investments, at fair value | $ 175,353 | $ 74,471 |
Investments, at fair value | 5,143,677 | 3,908,613 |
Level III | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Investments, at fair value | 3,603,942 | 2,390,273 |
Level III | Recent transaction price | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 11,311 | 43,934 |
Level III | Recent transaction price | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 69,871 | |
Level III | Recent transaction price | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 3,646 | |
Level III | Recent transaction price | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 51,788 | 4,527 |
Level III | Recent transaction price | Materials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 193,614 | |
Level III | Recent transaction price | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 35,084 | 32,173 |
Level III | Recent transaction price | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 1,612 | 22,732 |
Level III | Recent transaction price | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | 179,009 | 74,329 |
Level III | Recent transaction price | Real estate-oriented: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Real estate investments, at fair value | | 7,695 |
Level III | Recent market information | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 351 | 293 |
Level III | Recent market information | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 2,325 | 2,676 |
Level III | Recent market information | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 26,102 | 12,880 |
Level III | Recent market information | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 452 | |
Level III | Recent market information | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 37,419 | 35,525 |
Level III | Recent market information | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 4,316 | (1,137) |
Level III | Recent market information | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | 14,102 | 75,181 |
Level III | Discounted cash flow | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 55,326 | 16,062 |
Real estate investments, at fair value | 61,357 | |
Level III | Discounted cash flow | Communication services | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | | 67,500 |
Level III | Discounted cash flow | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 15,873 | 32,765 |
Level III | Discounted cash flow | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 26,689 | 66,204 |
Level III | Discounted cash flow | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 79,824 | 9,875 |
Level III | Discounted cash flow | Materials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 306,319 | 197,427 |
Level III | Discounted cash flow | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 211,211 | 3,643 |
Level III | Discounted cash flow | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 551,047 | 31,474 |
Level III | Discounted cash flow | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | 102,981 | 214,172 |
Level III | Discounted cash flow | Real estate-oriented: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Real estate investments, at fair value | 113,996 | 66,776 |
Level III | Market approach (comparable companies) | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 20,520 | 6,143 |
Level III | Market approach (comparable companies) | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 62,544 | 35,124 |
Level III | Market approach (comparable companies) | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | 193,771 | 302,179 |
Level III | Market approach (comparable companies) | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | 670,215 | |
Level III | Discounted cash flow and market approach comparable companies | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | $ 22,573 | $ 27,347 |
Discount rate | Level III | Discounted cash flow | Minimum | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.13 | 0.12 |
Real estate oriented, measurement input | 20% | |
Discount rate | Level III | Discounted cash flow | Minimum | Communication services | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | | 0.12 |
Discount rate | Level III | Discounted cash flow | Minimum | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.14 | 0.13 |
Discount rate | Level III | Discounted cash flow | Minimum | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.12 | 0.12 |
Discount rate | Level III | Discounted cash flow | Minimum | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.11 | 0.12 |
Discount rate | Level III | Discounted cash flow | Minimum | Materials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.10 | 0.10 |
Discount rate | Level III | Discounted cash flow | Minimum | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.13 | 0.09 |
Discount rate | Level III | Discounted cash flow | Minimum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.09 | 0.10 |
Discount rate | Level III | Discounted cash flow | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.12 | 0.12 |
Discount rate | Level III | Discounted cash flow | Minimum | Real estate-oriented: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | | 0.14 |
Real estate oriented, measurement input | 4% | |
Discount rate | Level III | Discounted cash flow | Maximum | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.17 | 0.15 |
Real estate oriented, measurement input | 20% | |
Discount rate | Level III | Discounted cash flow | Maximum | Communication services | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | | 0.13 |
Discount rate | Level III | Discounted cash flow | Maximum | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.14 | 0.21 |
Discount rate | Level III | Discounted cash flow | Maximum | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.19 |
Discount rate | Level III | Discounted cash flow | Maximum | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.15 |
Discount rate | Level III | Discounted cash flow | Maximum | Materials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.14 |
Discount rate | Level III | Discounted cash flow | Maximum | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.09 |
Discount rate | Level III | Discounted cash flow | Maximum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.19 | 0.18 |
Discount rate | Level III | Discounted cash flow | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.20 | 0.21 |
Discount rate | Level III | Discounted cash flow | Maximum | Real estate-oriented: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | | 0.25 |
Real estate oriented, measurement input | 27% | |
Discount rate | Level III | Discounted cash flow | Weighted Average | Consumer discretionary | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.16 | 0.14 |
Real estate oriented, measurement input | 20% | |
Discount rate | Level III | Discounted cash flow | Weighted Average | Communication services | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | | 0.13 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Energy | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.14 | 0.18 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.15 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.13 | 0.14 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Materials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.12 | 0.12 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.15 | 0.09 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.18 | 0.14 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.15 | 0.19 |
Discount rate | Level III | Discounted cash flow | Weighted Average | Real estate-oriented: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | | 0.18 |
Real estate oriented, measurement input | 14% | |
Discount rate | Level III | Discounted cash flow and market approach comparable companies | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.12 | 0.14 |
Discount rate | Level III | Discounted cash flow and market approach comparable companies | Maximum | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | | 0.14 |
Discount rate | Level III | Discounted cash flow and market approach comparable companies | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.12 | |
Discount rate | Level III | Discounted cash flow and market approach comparable companies | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.12 | 0.14 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | | $ 582,299 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Minimum | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.5 | 0.9 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Minimum | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 9.8 | 0.9 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Minimum | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 1 | 0.76 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 0.9 | 0.9 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Maximum | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 1 | 1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Maximum | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 9.8 | 1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Maximum | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 1 | 1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 1 | 1.1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Weighted Average | Financials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.7 | 1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Weighted Average | Industrials | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 9.8 | 1 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Weighted Average | Real estate: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 1 | 0.95 |
Multiple of underlying assets | Level III | Market approach (comparable companies) | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 1 | 1 |
Earning multiple | Level III | Market approach (comparable companies) | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | $ 19,820 | |
Earning multiple | Level III | Market approach (comparable companies) | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | $ 396,688 | $ 336,831 |
Earning multiple | Level III | Market approach (comparable companies) | Minimum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 6 | |
Earning multiple | Level III | Market approach (comparable companies) | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 2 | 5 |
Earning multiple | Level III | Market approach (comparable companies) | Maximum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 6 | |
Earning multiple | Level III | Market approach (comparable companies) | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 11 | 20 |
Earning multiple | Level III | Market approach (comparable companies) | Weighted Average | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 6 | |
Earning multiple | Level III | Market approach (comparable companies) | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 8.5 | 9 |
Earning multiple | Level III | Discounted cash flow and market approach comparable companies | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 9 | |
Earning multiple | Level III | Discounted cash flow and market approach comparable companies | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 11 | |
Earning multiple | Level III | Discounted cash flow and market approach comparable companies | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 10 | |
Revenue multiple | Level III | Market approach (comparable companies) | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, at fair value | $ 1,345 | |
Revenue multiple | Level III | Market approach (comparable companies) | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, at fair value | $ 60,841 | $ 83,644 |
Revenue multiple | Level III | Market approach (comparable companies) | Minimum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.3 | |
Revenue multiple | Level III | Market approach (comparable companies) | Minimum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 1 | 1 |
Revenue multiple | Level III | Market approach (comparable companies) | Maximum | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.3 | |
Revenue multiple | Level III | Market approach (comparable companies) | Maximum | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 2 | 2 |
Revenue multiple | Level III | Market approach (comparable companies) | Weighted Average | Other: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Credit-oriented investments, measurement inputs | 0.3 | |
Revenue multiple | Level III | Market approach (comparable companies) | Weighted Average | Equity investments: | | |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] | | |
Equity investments, measurement inputs | 1.5 | 1.81 |