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Collaboration Agreements And Business Development Activities - Collaboration Revenues under the Collaboration Agreement with Takeda (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jul. 01, 2022 | Jun. 30, 2023 | Jul. 01, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | $ 469,848 | $ 419,427 | $ 878,636 | $ 775,407
Collaborative Arrangement with Takeda |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | 16,104 | 6,485 | 22,327 | 12,552
License revenues |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | 52,747 | 57,526 | 91,039 | 89,593
License revenues | Collaborative Arrangement with Takeda |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | 11,362 | 2,700 | 14,211 | 5,065
Collaboration services revenues |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | 7,455 | 14,857 | 14,551 | 28,472
Collaboration services revenues | Collaborative Arrangement with Takeda |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues | $ 4,742 | $ 3,785 | $ 8,116 | $ 7,487

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