v3.25.3
Management and assessment of financial risks (Details)
€ in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2025
EUR (€)
Sep. 30, 2025
USD ($)
Dec. 31, 2024
EUR (€)
Sep. 30, 2024
EUR (€)
Dec. 31, 2023
EUR (€)
Disclosure of credit risk exposure [line items]          
Assets € 652,052   € 205,228    
Cash and cash equivalents € 589,703   € 144,221 € 180,451 € 251,942
United States of America, Dollars | Currency risk          
Disclosure of credit risk exposure [line items]          
Assets | $   $ 458,254      
Cash and cash equivalents | $   450,233      
Liabilities | $   $ 1,878      
Reasonably possible change in risk variable, percent 10.00%        
Adverse change in exchange rate, impact on foreign exchange loss € 35,337        
Favorable change in exchange rate, impact on foreign exchange gain € 43,189