v3.25.3
Financial liabilities - Disclosure of changes in derivative instruments (Details) - EUR (€)
€ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Disclosure of detailed information about financial instruments [line items]        
Derivative financial liabilities at beginning of period     € 4,786 € 2,579
Issuance       2,158
Increase in fair value € 29,544 € 699 29,935 1,221
Decrease in fair value (3,639) (1,137) (3,620) (139)
Repurchases     (4,427)  
Exercises     (26,674)  
Derivative financial liabilities at end of period 0 5,819 0 5,819
Kreos/Claret BSA        
Disclosure of detailed information about financial instruments [line items]        
Derivative financial liabilities at beginning of period     1,166 2,579
Issuance       0
Increase in fair value     29,935 544
Decrease in fair value     0 (139)
Repurchases     (4,427)  
Exercises     (26,674)  
Derivative financial liabilities at end of period 0 2,984 0 2,984
Kreos/Claret Minimal Return Indemnifications        
Disclosure of detailed information about financial instruments [line items]        
Derivative financial liabilities at beginning of period     3,620 0
Issuance       2,158
Increase in fair value     0 677
Decrease in fair value     (3,620) 0
Repurchases     0  
Exercises     0  
Derivative financial liabilities at end of period € 0 € 2,835 € 0 € 2,835