INVESTMENTS - Corporate Investments (Details) - Oaktree Capital Group Excluding Consolidated Funds - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Other investments, at fair value	$ 84,978	$ 108,159
Total corporate investments	1,510,418	1,191,504
Funds
Schedule of Equity Method Investments [Line Items]
Equity-method investments:	1,424,160	1,082,069
Companies
Schedule of Equity Method Investments [Line Items]
Equity-method investments:	$ 1,280	$ 1,276