Inventories - Schedule of write-down provisions related to the inventory categories (Details) - EUR (€) € in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Classes of current inventories [abstract] | ||
| Raw materials | € 20,167 | € 18,855 |
| Work in progress | 23,908 | 21,478 |
| Finished goods | 4,473 | 4,089 |
| Purchased goods (third party products) | 55 | 40 |
| TOTAL WRITE-DOWN PROVISION | € 48,604 | € 44,462 |