INVESTMENTS - Schedule of Fair Value of Equity Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Total	$ 95,342	$ 625,058
Financials
Debt and Equity Securities, FV-NI [Line Items]
Total	95,099	103,250
Consumer
Debt and Equity Securities, FV-NI [Line Items]
Total	232	33,447
Communications and technology
Debt and Equity Securities, FV-NI [Line Items]
Total	11	48,687
Fixed income exchange traded funds
Debt and Equity Securities, FV-NI [Line Items]
Total	0	295,481
Equity exchange traded funds
Debt and Equity Securities, FV-NI [Line Items]
Total	0	90,510
Industrial, utilities and energy
Debt and Equity Securities, FV-NI [Line Items]
Total	0	25,326
Healthcare
Debt and Equity Securities, FV-NI [Line Items]
Total	0	24,617
Basic materials
Debt and Equity Securities, FV-NI [Line Items]
Total	$ 0	$ 3,740