v3.25.4
Financial Risk Management - Additional Information (Detail)
€ / shares in Units, € in Thousands
12 Months Ended
Dec. 31, 2025
EUR (€)
€ / shares
shares
Dec. 31, 2024
EUR (€)
shares
Dec. 31, 2023
EUR (€)
shares
Dec. 31, 2021
EUR (€)
shares
Dec. 31, 2025
kr / shares
shares
Dec. 31, 2022
shares
Dec. 31, 2020
shares
Disclosure of detailed information about financial instruments [line items]              
Number of shares issued 61,977,408 60,689,487 57,707,439 56,937,682 61,977,408 57,152,295 53,750,386
Par value per share | kr / shares         kr 1    
Number Of Treasury Shares Outstanding 597,096 845,887 1,093,054   597,096    
Net proceeds from follow-on public offerings | € € 0 € 309,913 € 0        
Ordinary shares [member]              
Disclosure of detailed information about financial instruments [line items]              
Par value per share | € / shares € 0.13            
Numebr of shares outstanding 597,096       597,096    
Capital Increases [member]              
Disclosure of detailed information about financial instruments [line items]              
Net proceeds from follow-on public offerings | €   € 290,600   € 367,900      
Interest rate risk [member] | Coupon fixed rate structure [member]              
Disclosure of detailed information about financial instruments [line items]              
Outstanding convertible notes, coupon fixed rate 2.25%       2.25%    
Liquidity risk [member]              
Disclosure of detailed information about financial instruments [line items]              
Financial Assets Duration Period     12 months