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Collaboration, License, and Other Agreements - Schedule of Contract Balances, Antibody Collaboration (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Disaggregation of Revenue [Line Items]    
Accounts receivable, net $ 5,584.5 $ 5,328.7
Sanofi Collaboration Agreement, Antibody    
Disaggregation of Revenue [Line Items]    
Accounts receivable, net 1,128.2 692.3
Deferred revenue $ 417.3 $ 415.8