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SUPPLEMENTAL FINANCIAL INFORMATION - Schedule of Other Nonoperating Income (Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Unrealized gain (loss) on investments accounted for at fair value | $ 770 | $ (13,419) | $ (2,189) | $ (16,837)
Unrealized gain (loss) on marketable securities | 10 | (282) | 335 | (171)
Realized gain on maturities of marketable securities | 214 | 0 | 214 | 0
Unrealized loss on convertible note | (53) | 0 | (251) | 0
Foreign exchange gain | 293 | 2,345 | 319 | 1,132
Interest income, net and other | 1,737 | 4 | 2,762 | 7
Other income (loss) | $ 2,971 | $ (11,352) | $ 1,190 | $ (15,869)

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