Summary of significant transactions - Terms of the equity investment (Details) - EUR (€) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2023 |
Dec. 31, 2019 |
Nov. 06, 2019 |
Aug. 28, 2019 |
|
| Summary Of Significant Transaction [line items] | |||||
| Average exercise price warrants | € 28.75 | ||||
| Percentage Of Ownership Following Approval By EGM | 29.90% | ||||
| Warrant B | |||||
| Summary Of Significant Transaction [line items] | |||||
| Multiplier used to calculate exercise price per share | 120.00% | ||||
| Initial Warrant Term | 5 years | ||||
| Volume of days | 30 days | ||||
| Average exercise price warrants | € 140.59 | ||||
| Gilead | |||||
| Summary Of Significant Transaction [line items] | |||||
| Share Holding Percentage | 25.35% | 25.84% | 25.10% | 22.04% | |
| Gilead | Warrant B | |||||
| Summary Of Significant Transaction [line items] | |||||
| Value of warrant B | € 10,000.00 | ||||