Inventories - Narrative (Details) - EUR (€) € in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure Of Inventories [Line Items] | ||
| Inventories, write-down provision | € 44,462 | € 35,510 |
| Finished goods, write-down provision | 4,089 | 591 |
| Purchased goods, write-down provision | 40 | 591 |
| VLA2001 | ||
| Disclosure Of Inventories [Line Items] | ||
| Inventories, write-down provision | 17,200 | 17,200 |
| IXCHIQ | ||
| Disclosure Of Inventories [Line Items] | ||
| Inventories, write-down provision | 23,200 | 17,200 |
| IXIARO and IXCHIQ and DUKORAL | ||
| Disclosure Of Inventories [Line Items] | ||
| Finished goods, write-down provision | € 4,100 | € 600 |