Commitments related to operational activities - Commitments given and received (Details) - EUR (€) € in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 12, 2023 |
|
| Disclosure of detailed information about financial instruments [line items] | ||||
| Total commitments given | € 133,633 | € 187,248 | € 221,136 | |
| Agreements concerning the provision of facilities | 383 | 326 | 260 | |
| Total commitments received | 383 | 326 | 260 | |
| Contract CRO with Pharmaceutical Research Associates B.V. | ||||
| Disclosure of detailed information about financial instruments [line items] | ||||
| Total commitments given | 93,553 | 156,870 | 183,366 | € 277,600 |
| CMO | ||||
| Disclosure of detailed information about financial instruments [line items] | ||||
| Total commitments given | 7,464 | 5,332 | 5,733 | |
| Lease | ||||
| Disclosure of detailed information about financial instruments [line items] | ||||
| Total commitments given | 1,041 | 6,570 | 8,595 | |
| Others | ||||
| Disclosure of detailed information about financial instruments [line items] | ||||
| Total commitments given | € 31,576 | € 18,476 | € 23,442 | |