v3.25.3
Royalty Financing Agreement - Interest expenses under royalty financing (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Minimum        
CSL Behring collaboration        
Effective interest rate (as a percent)   12.00%   12.00%
Maximum        
CSL Behring collaboration        
Effective interest rate (as a percent)   13.50%   13.50%
Royalty Financing Agreement        
CSL Behring collaboration        
Interest expenses $ 13.8 $ 12.8 $ 40.9 $ 37.7
Royalty Financing Agreement | Minimum        
CSL Behring collaboration        
Interest expenses $ 12.3 $ 12.9 $ 35.8 $ 37.4
Effective interest rate (as a percent) 10.50% 12.00% 10.50% 12.00%
Royalty Financing Agreement | Maximum        
CSL Behring collaboration        
Interest expenses $ 14.2 $ 14.6 $ 41.1 $ 42.3
Effective interest rate (as a percent) 12.00% 13.50% 12.00% 13.50%