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Collaborative and Other Relationships - Samsung Bioepis (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2019
product
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Collaborative arrangements and non-collaborative arrangement transactions            
Collaboration profit sharing/(loss reimbursement)   $ 56.9 $ 29.4 $ 114.0 $ (87.9)  
Samsung Bioepis            
Collaborative arrangements and non-collaborative arrangement transactions            
Collaboration profit sharing/(loss reimbursement)   56.9 $ 58.3 $ 114.0 $ 122.7  
Samsung Bioepis            
Collaborative arrangements and non-collaborative arrangement transactions            
Contingent Commercialized Rights, Number Of Products | product 2          
Expected profit share percentage 45.00%     50.00%    
Estimated additional payments upon achievement of development and commercial milestones       $ 180.0    
Collaboration agreement term       5 years    
Option exercise fee       $ 60.0    
Samsung Bioepis | Related Party            
Collaborative arrangements and non-collaborative arrangement transactions            
Accounts receivable   7.0   7.0   $ 2.0
Accounts payable   $ 162.8   $ 162.8   $ 40.5