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Collaboration Agreements And Business Development Activities - Collaboration Revenues under the Collaboration Agreement with Ipsen (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2023
Dec. 30, 2022
Dec. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues $ 1,830,208 $ 1,611,062 $ 1,434,970
Collaborative Arrangement with Ipsen      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues 144,969 168,592 302,073
License revenues      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues 178,635 162,056 249,956
License revenues | Collaborative Arrangement with Ipsen      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues 135,818 133,732 207,982
Collaboration services revenues      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues 22,694 47,763 107,758
Collaboration services revenues | Collaborative Arrangement with Ipsen      
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]      
Total revenues $ 9,151 $ 34,860 $ 94,091