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COLLABORATION AND LICENSING AGREEMENTS - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Total revenues | $ 97,662 |  | $ 73,222 | $ 171,776 | $ 119,245
Licensing revenue |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Total revenues | 20 |  | 19 | 5,040 | 36
Fosun Pharma | Fosun Agreement | Licensing revenue |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Total revenues | 0 | $ 5,000 | 0 | 5,000 | 0
AstraZeneca | AZ Termination Agreement |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |
Cost of revenue | 3,800 |  | $ 7,900 | 12,700 | $ 12,600
Maximum potential payment per agreement | $ 75,000 |  |  | $ 75,000 |

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