v3.26.1
Collaboration Agreements And Business Development Activities - Collaboration Revenues under the Collaboration Agreement with Takeda (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 03, 2026
Jul. 04, 2025
Jul. 03, 2026
Jul. 04, 2025
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues $ 628,690 $ 568,261 $ 1,239,502 $ 1,123,708
Collaborative Arrangement with Takeda        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues 3,046 5,286 13,550 9,002
License revenues        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues 59,810 49,301 116,758 91,781
License revenues | Collaborative Arrangement with Takeda        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues 2,659 3,833 10,312 6,592
Collaboration services revenues        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues (4,145) (1,054) (5,258) (1,370)
Collaboration services revenues | Collaborative Arrangement with Takeda        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Total revenues $ 387 $ 1,453 $ 3,238 $ 2,410