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INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Income Taxes [Line Items] |  |  |  |  |
Benefit (provision) from income taxes | $ 3,875 | $ 0 | $ 3,875 | $ (288) |
Increase (decrease) in deferred tax liability | (4,000) |  | (4,000) |  |
Income Taxes Paid |  |  | 100 |  |
IPR&D intangible assets: |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Intangible assets | 0 |  | 0 |  | $ 14,700
Vicinium | Europe | IPR&D intangible assets: |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Intangible assets | 0 |  | $ 0 |  | $ 14,700
Impairment of intangible assets | $ 14,700 |  |  |  |

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