Operating expenses - Disclosure of Audit and Non-Audit Fees (Details) - EUR (€) € in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Auditors Remuneration [Line Items] | |||
| Audit fees | € 1,032 | € 1,098 | € 725 |
| Non-audit fees (services other than the audit of financial statements) | 260 | 208 | 213 |
| Total | 1,292 | 1,306 | 938 |
| Deloitte & Associés | |||
| Auditors Remuneration [Line Items] | |||
| Audit fees | 516 | 573 | 725 |
| Non-audit fees (services other than the audit of financial statements) | 127 | 158 | 213 |
| Total | 643 | 731 | € 938 |
| PwC | |||
| Auditors Remuneration [Line Items] | |||
| Audit fees | 516 | 525 | |
| Non-audit fees (services other than the audit of financial statements) | 133 | 50 | |
| Total | € 649 | € 575 | |