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INVESTMENTS - Schedule of Investments Held and Securities Sold Short by Consolidated Funds (Details) - Consolidated Funds - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Schedule Of Investments In Marketable Securities [Line Items] |  |
Debt securities, fair value | $ 1,975,656 | $ 2,683,708
Debt securities, fair value as a percentage of investments of consolidated funds | 40.90% | 54.30%
Equity securities, fair value | $ 2,542,008 | $ 2,056,973
Equity securities, fair value as a percentage of investments of consolidated funds | 52.40% | 41.50%
Real estate investments, at fair value | $ 329,735 | $ 206,181
Real estate, fair value as a percentage of investments of consolidated funds | 6.70% | 4.20%
Investments, at fair value | $ 4,847,399 | $ 4,946,862
Total investments, fair value as a percentage of investments of consolidated funds | 100.00% | 100.00%
United States: |  |
Schedule Of Investments In Marketable Securities [Line Items] |  |
Debt securities, fair value | $ 1,249,190 | $ 1,857,874
Debt securities, fair value as a percentage of investments of consolidated funds | 25.90% | 37.60%
Total debt securities, cost | $ 1,464,996 | $ 1,792,830
Equity securities, fair value | $ 1,998,430 | $ 1,610,427
Equity securities, fair value as a percentage of investments of consolidated funds | 41.10% | 32.60%
Total equity securities, cost | $ 1,645,924 | $ 1,362,953
Real estate investments, at fair value | $ 79,085 | $ 15,036
Real estate, fair value as a percentage of investments of consolidated funds | 1.60% | 0.30%
Total real estate securities, cost | $ 75,112 | $ 26,966
Europe: |  |
Schedule Of Investments In Marketable Securities [Line Items] |  |
Debt securities, fair value | $ 197,558 | $ 160,989
Debt securities, fair value as a percentage of investments of consolidated funds | 4.10% | 3.30%
Total debt securities, cost | $ 183,149 | $ 161,153
Equity securities, fair value | $ 421,779 | $ 375,486
Equity securities, fair value as a percentage of investments of consolidated funds | 8.70% | 7.60%
Total equity securities, cost | $ 273,456 | $ 295,630
Real estate investments, at fair value | $ 250,650 | $ 191,145
Real estate, fair value as a percentage of investments of consolidated funds | 5.10% | 3.80%
Total real estate securities, cost | $ 237,229 | $ 191,470
Asia and other: |  |
Schedule Of Investments In Marketable Securities [Line Items] |  |
Debt securities, fair value | $ 528,908 | $ 664,845
Debt securities, fair value as a percentage of investments of consolidated funds | 10.90% | 13.40%
Total debt securities, cost | $ 548,021 | $ 680,671
Equity securities, fair value | $ 121,799 | $ 71,060
Equity securities, fair value as a percentage of investments of consolidated funds | 2.60% | 1.40%
Total equity securities, cost | $ 106,589 | $ 55,638

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