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COLLABORATION AND LICENSING AGREEMENTS - Narrative (Details) $ in Thousands, ¥ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2025 JPY (¥) | Mar. 31, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jun. 30, 2025 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |
Total revenues | $ 110,329 |  |  | $ 98,241 | $ 282,105 | $ 217,486 |
Non-cash royalty revenue related to the sale of future royalties |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |
Total revenues | 4,789 |  |  | 809 | 7,195 | 1,776 |
Licensing revenue |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |
Total revenues | 25 |  |  | 20 | 5,065 | 56 |
Kyowa Kirin | Non-cash royalty revenue related to the sale of future royalties |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |
Total revenues | 3,400 |  |  |  |  |  |
Kyowa Kirin | Kyowa Kirin Agreement | Non-cash royalty revenue related to the sale of future royalties |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |
Total revenues | 4,789 | ¥ 500.0 |  | 809 | 7,195 | 1,776 |
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 | $ 0 |  |  | $ 10,000 | $ 12,700 | $ 22,700 |
Maximum potential payment per agreement |  |  |  |  |  |  | $ 75,000

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