v3.25.1
Summary of significant transactions - Revised Fligotinib collaboration (Details) - Gilead - Filgotinib drug license
€ in Millions
Dec. 31, 2023
Oct. 29, 2023
Dec. 31, 2022
EUR (€)
Jan. 31, 2021
Summary Of Significant Transaction [line items]        
Total Amounts Received From Gilead In Previous Years     € 172.6  
Cost Share For Global Development Activities Terminated   50.00%    
Europe | Minimum        
Summary Of Significant Transaction [line items]        
Percentage of future net sales from 2024 8      
Europe | Maximum        
Summary Of Significant Transaction [line items]        
Percentage of future net sales from 2024 15      
Group B activities [Member]        
Summary Of Significant Transaction [line items]        
Cost Share For Global Development Activities       50.00%