v3.26.3
Management and assessment of financial risks (Details)
€ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2026
EUR (€)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
EUR (€)
Jun. 30, 2025
EUR (€)
Dec. 31, 2024
EUR (€)
Disclosure of credit risk exposure [line items]          
Assets | € € 462,209   € 584,341    
Cash and cash equivalents | € € 387,992   € 516,685 € 60,946 € 144,221
United States of America, Dollars | Currency risk          
Disclosure of credit risk exposure [line items]          
Assets | $   $ 277,156      
Cash and cash equivalents | $   133,965      
Receivables due from related parties | $   126,795      
Liabilities | $   $ 2,018      
Reasonably possible change in risk variable, percent 10.00%        
Adverse change in exchange rate, impact on foreign exchange loss | € € 21,952        
Favorable change in exchange rate, impact on foreign exchange gain | € € 26,831