v3.26.1
Investments in Financial Assets (Details) - EUR (€)
€ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Kamal Therapeutics, Inc.    
Disclosure of Investment in Financial Asset and Gain on Disposal of Associate [Line items]    
Proportion of ownership interest 0.28%  
Financial assets at fair value through other comprehensive income € 0 € 0
Yarrow Biotechnology, Inc    
Disclosure of Investment in Financial Asset and Gain on Disposal of Associate [Line items]    
Proportion of ownership interest 3.60%  
Financial assets at fair value through other comprehensive income € 0 € 0