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v3.26.1

Goodwill and impairment test (Details) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of information for cash-generating units [line items] |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill | € 0 | € 0 | € 0 |
Goodwill | € 18,419 | € 18,419 | € 18,419 |
Discount rate (WACC) | 10.00% | 11.50% | 15.00% |
Wittycel SAS |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  | € 13,632
Impairment loss recognised in profit or loss, goodwill |  |  |  | 13,586
Impairment loss recognised in profit or loss, intangible assets other than goodwill | € 0 | € 0 | € 0 | € 45
Splicos SAS |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill | € 18,419 | € 18,419 | € 18,419 |

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