Other Non-Financial Assets - Additional Information (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | € 117.8 | € 194.5 |
| Other non-financial assets | 181.1 | 239.0 |
| Government and similar grants | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Other non-financial assets | 25.9 | |
| Value Added Tax Receivables | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Other non-financial assets | 20.1 | |
| Ryvu Therapeutics S.A. | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | 5.5 | 8.5 |
| MediLink Therapeutics Co., Ltd | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | 8.4 | 17.7 |
| European Commission To Collaboration Partner | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | € 8.2 | € 83.1 |