v3.25.4
Earnings Per Share - Summary of Earnings and Share Data Used in the Basic and Diluted Earnings Per Share Calculation (Detail) - EUR (€)
€ / shares in Units, € in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings      
Net profit/(loss) for the year € (228,034) € (378,084) € (481,447)
Number of shares      
Weighted average number of ordinary shares for the purposes of basic and diluted earnings per share 60,607,131 57,891,570 56,287,060
Basic earnings per share € (3.76) € (6.53) € (8.55)
Diluted earnings per share € (3.76) € (6.53) € (8.55)