SUPPLEMENTAL FINANCIAL INFORMATION - Schedule of Other Nonoperating Income (Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized gain (loss) on investments	$ 15,472
Realized loss on investments	(10,491)	$ 0	$ 0
Unrealized gain (loss) on marketable securities	(530)	(456)	795
Realized gain on marketable securities	1,141	0	0
Realized gain on convertible note redemptions and sale	1,430	0	0
Change in value of warrant liabilities	0	0	(8,078)
Foreign exchange gain (loss)	423	2,058	(128)
Department of Energy awards	0	0	1,900
Interest income, net and other	5,697	(166)	340
Other income (loss)	$ 13,142	$ (15,372)	$ 1,140