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SUPPLEMENTAL FINANCIAL INFORMATION - Schedule of Other Nonoperating Income (Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Unrealized gain (loss) on investments accounted for at fair value | $ 8,890 | $ 3,121 | $ 6,701 | $ (13,716)
Unrealized gain (loss) on marketable securities | 540 | (36) | 875 | (207)
Realized gain on maturities of marketable securities | 374 | 0 | 588 | 0
Unrealized gain (loss) on convertible note | 7,223 | 0 | 6,972 | 0
Realized gain on convertible note | 181 | 0 | 181 | 0
Foreign exchange gain (loss) | (239) | 1,229 | 80 | 2,361
Interest income, net and other | 444 | 96 | 3,206 | 103
Other income (loss) | $ 17,413 | $ 4,410 | $ 18,603 | $ (11,459)

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