v3.26.1
Related parties - Summary of remuneration package (Details)
 12 Months Ended
Nov. 19, 2025
shares
Aug. 07, 2025
shares
May 27, 2025
shares
Dec. 31, 2025
EUR (€)
EquityInstruments
shares
Dec. 31, 2024
EUR (€)
EquityInstruments
shares
Dec. 31, 2023
EUR (€)
EquityInstruments
shares
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]            
Subscription rights offered 420,000 905,000 925,000 2,250,000 1,381,000 1,538,400
Restricted Stock Units (RSUs)            
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]            
Subscription rights offered | EquityInstruments       846,652 840,088 920,510
Key management personnel of entity or parent            
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]            
Short-term benefits       € 3,762,000 € 3,279,000 € 3,902,000
Board fees and other short-term benefits for members of the Board of Directors       791,000 859,000 749,000
Post-employment benefits       216,000 € 186,000 209,000
Severance package       € 1,520,000   € 3,150,000
Subscription rights offered | shares       1,510,000 185,000 325,000
Number of RSUs granted in the year to Executive Committee members as a group | shares       429,924 299,516 331,066
Total cost of subscription rights granted in the year       € 15,275,000 € 1,765,000 € 5,163,000