v3.26.1
Financial liabilities - Heights convertible notes (Details)
€ / shares in Units, € in Thousands
3 Months Ended
Jul. 30, 2025
EUR (€)
note
€ / shares
shares
Mar. 31, 2026
EUR (€)
shares
Mar. 31, 2025
EUR (€)
Jul. 23, 2025
note
Disclosure of detailed information about borrowings [line items]        
Day-one gain on recognition of financial liabilities   € 0 € 147  
Number of ordinary shares issued (in shares) | shares   754,776    
Heights convertible notes        
Disclosure of detailed information about borrowings [line items]        
Day-one gain on recognition of financial liabilities € 1,262 € 2,359    
Number of convertible notes converted | note 200     150
Notional amount € 21,900      
Number of ordinary shares issued (in shares) | shares 920,377      
Conversion of Kreos OCABSA and heights notes € 53,921      
Heights convertible notes | Ordinary shares        
Disclosure of detailed information about borrowings [line items]        
Borrowings, fixed conversion price (euro per share) | € / shares € 23.7674