v3.25.2
Other financial information - Financial risk management (Details) - EUR (€)
€ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Disclosure of detailed information about borrowings [line items]    
Financial liabilities € 172,112 € 214,444
Royalty certificates liabilities    
Disclosure of detailed information about borrowings [line items]    
Financial liabilities 33,415 29,207
Trade payables    
Disclosure of detailed information about borrowings [line items]    
Financial liabilities 34,703 32,862
Less than 1 year    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 44,896 39,184
Less than 1 year | Bank borrowings and related derivatives    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 2,966 3,275
Less than 1 year | Accrued interest payable on loans    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 8 73
Less than 1 year | Lease liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 2,608 2,642
Less than 1 year | Trade payables    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 34,703 32,862
Less than 1 year | Other miscellaneous payables    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 4,611 331
Between 1 and 3 years    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 63,531 43,398
Between 1 and 3 years | Bank borrowings and related derivatives    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 58,580 39,252
Between 1 and 3 years | Accrued interest payable on loans    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 2,163 1,816
Between 1 and 3 years | Accrued interest payable on loans | Finance contract with European Investment Bank [Member]    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 2,200  
Financial liabilities 5,400  
Between 1 and 3 years | Lease liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 1,405 2,330
Between 1 and 3 years | Royalty certificates liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 1,383  
Between 3 and 5 years    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 23,005 2,006
Between 3 and 5 years | Bank borrowings and related derivatives    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 1,780 2,002
Between 3 and 5 years | Lease liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows   4
Between 3 and 5 years | Royalty certificates liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 21,225  
More than 5 years    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows 399,865 423,140
More than 5 years | Bank borrowings and related derivatives    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows   668
More than 5 years | Royalty certificates liabilities    
Disclosure of detailed information about borrowings [line items]    
Derivative and non-derivative financial liabilities, undiscounted cash flows € 399,865 € 422,472