v3.26.1
The Group (Details) - EUR (€)
€ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Corporate information and statement of IFRS compliance [abstract]        
Equity € 429,594 € 455,205 € (6,591) € 40,584