Related-party transactions - Schedule of rendering of services (Details) - EUR (€) € in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Related party transactions [abstract] | |||
| Operating activities | € 0 | € 391 | € 260 |
| Financing activities | 141 | 194 | 76 |
| PROVISION OF SERVICES | € 141 | € 585 | € 335 |