v3.25.4
Revenue - Schedule of Revenue Attributable to Commercial Customers by Product (Detail) - Commercial customers [member] - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of operating segments [line items]      
Revenue from contracts with customers € 683,572 € 225,728 € 178,663
YORVIPATH [member]      
Disclosure of operating segments [line items]      
Revenue from contracts with customers 477,412 28,727  
SKYTROFA [member]      
Disclosure of operating segments [line items]      
Revenue from contracts with customers € 206,160 € 197,001 € 178,663