v3.26.1
Shareholders’ equity - Schedule of Changes in Share Capital, Share Premium and Number of Ordinary Shares and Special Voting Shares (Details)
€ in Thousands
6 Months Ended
Jun. 30, 2026
shares
Jun. 30, 2026
EUR (€)
shares
Jun. 30, 2026
employee
shares
Dec. 31, 2025
shares
Senior Management Team        
Disclosure of reserves within equity [line items]        
Number of shares issued (in shares) 577,338 577,338 577,338  
Restricted share units        
Disclosure of reserves within equity [line items]        
Number of other equity instruments exercised or vested in share-based payment arrangement (in shares) 577,338   18,710  
Share Capital        
Disclosure of reserves within equity [line items]        
At beginning of period | €   € 9,154    
At end of period | €   9,154    
Share premium        
Disclosure of reserves within equity [line items]        
At beginning of period | €   782,587    
At end of period | €   € 782,587    
Outstanding        
Disclosure of reserves within equity [line items]        
Number of shares issued (in shares) 268,889,388 268,889,388 268,889,388 268,240,430
Ordinary shares delivered under share-based payments 648,958      
Reserve for treasury shares        
Disclosure of reserves within equity [line items]        
Number of shares issued (in shares) 33,815,338 33,815,338 33,815,338 34,464,296
Ordinary shares delivered under share-based payments (648,958)      
Ordinary shares held in treasury        
Disclosure of reserves within equity [line items]        
Number of shares outstanding (in shares)       34,464,296
Ordinary shares        
Disclosure of reserves within equity [line items]        
Number of shares issued (in shares) 302,704,726 302,704,726 302,704,726 302,704,726
Special voting shares        
Disclosure of reserves within equity [line items]        
Number of shares issued (in shares) 154,981,350 154,981,350 154,981,350 154,981,350