Other Non-Financial Assets - Additional Information (Details) - EUR (€) € in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | € 166.8 | € 284.9 |
| Insurance Obligation And Service Contracts | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | 18.2 | |
| Ryvu Therapeutics S.A. | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | 8.5 | 15.7 |
| MediLink Therapeutics Co., Ltd | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | 17.7 | 0.0 |
| European Commission To Collaboration Partner | ||
| Disclosure Of Income And Expenses [Line Items] | ||
| Deferred expenses | € 83.1 | € 151.1 |