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INVESTMENT AT FAIR VALUE (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Investment Holdings [Line Items] |  |
Net realized and unrealized gain | $ 839 | $ 13,661
Veritone Warrants |  |
Investment Holdings [Line Items] |  |
Change in fair value of investment | (2,752) | 1,996
Gain on sale of investment, warrants | 3,591 | 11,503
Veritone Common Stock |  |
Investment Holdings [Line Items] |  |
Change in fair value of investment | 0 | 3,478
Loss on sale of investment, common stock | $ 0 | $ (3,316)

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