Revenue - Schedule of Revenue From Sale of Commercial Products (Detail) - EUR (€) € in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure of operating segments [line items] | ||
| Revenue from commercial products | € 240,853 | € 96,028 |
| YORVIPATH [member] | ||
| Disclosure of operating segments [line items] | ||
| Revenue from commercial products | 196,896 | 44,688 |
| SKYTROFA [member] | ||
| Disclosure of operating segments [line items] | ||
| Revenue from commercial products | € 43,957 | € 51,340 |