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MARKETABLE SECURITIES - Activity in Investments (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Investments rollforward |  |
Opening balance |  | $ 1,295
Additions/transfers during period |  | 33,907
Disposals/transfers during period |  | (162)
Unrealized (loss) gain on securities held | $ (176) | 15,651
Unrealized foreign exchange loss on securities held |  | (9,858)
Ending balance |  | 40,833
Marketable securities |  |
Investments rollforward |  |
Opening balance | 1,743 | 1,133
Additions/transfers during period | 79 | 33,907
Disposals/transfers during period | (645) |
Unrealized (loss) gain on securities held | (176) | 15,651
Unrealized foreign exchange loss on securities held |  | (9,858)
Ending balance | $ 1,001 | 40,833
Warrants |  |
Investments rollforward |  |
Opening balance |  | 162
Disposals/transfers during period |  | $ (162)

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