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COLLABORATION AND LICENSING AGREEMENTS - Deferred Revenue (Details) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Current |  |
Beginning balance | $ 10,686 | $ 7,182
Prepaid product supply | 528 | 2,654
Product supply delivered | (4,633) | (6,650)
Reclassify amounts to be recognized in the next twelve months | 0 | 4,086
Ending balance | 6,581 | 7,272
Non-Current |  |
Beginning balance | 7,232 | 8,644
Prepaid product supply | 6,467 | 8,212
Product supply delivered | 0 | 0
Reclassify amounts to be recognized in the next twelve months | 0 | (4,086)
Ending balance | $ 13,699 | $ 12,770

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