INVESTMENTS - Other Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Investments [Line Items]
Realized (loss) gain	$ (89,225)	$ 6,044
Net change in unrealized loss	128,359	53,868
Total (loss) gain	39,134	59,912
Other Investments at Fair Value
Schedule of Investments [Line Items]
Realized (loss) gain	(91)	8,672
Net change in unrealized loss	(1,775)	(1,979)
Total (loss) gain	$ (1,866)	$ 6,693