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CSL Behring collaboration (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 24, 2020
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Collaboration arrangements              
Revenue   $ 497   $ 463,868 $ 2,289 $ 464,322  
CSL Behring collaboration.              
Collaboration arrangements              
Upfront payment recorded $ 450,000            
Other payments received $ 12,400            
Accounts receivable   2,700     2,700   $ 2,900
Contract asset   55,000     55,000   $ 55,000
Inventory work in progress   2,000     2,000    
Inventory raw materials   1,000     1,000    
License revenues              
Collaboration arrangements              
Revenue       462,400   462,400  
Collaborative revenue | CSL Behring collaboration.              
Collaboration arrangements              
Revenue     400 1,400 400  
License revenue | CSL Behring collaboration.              
Collaboration arrangements              
Revenue   $ 0   $ 462,400 $ 0 $ 462,400