v3.26.1
Financial Assets and Liabilities - Schedule of Financial Assets and Financial Liabilities (Detail) - EUR (€)
€ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Financial assets by category        
Cash and cash equivalents € 812,260 € 616,041 € 494,046 € 559,543
Total financial assets 1,053,525 776,964    
Classified in the statement of financial position        
Non-current assets 26,489 10,870    
Current assets 1,027,036 766,094    
Financial liabilities by category        
Royalty funding liabilities 301,800      
Derivative liabilities 0 256,231    
Total financial liabilities 566,240 1,219,720    
Classified in the statement of financial position        
Non-current liabilities 384,642 385,254    
Current liabilities 181,598 834,466    
Financial liabilities at amortised cost, class [member]        
Financial liabilities by category        
Convertible senior notes 0 429,391    
Royalty funding liabilities 301,789 290,871    
Lease liabilities 148,285 151,524    
Trade payables and accrued expenses 103,920 90,657    
Other liabilities (excluding indirect tax, and employee related payables) 12,246 1,046    
Financial liabilities measured at amortized cost 566,240 963,489    
Total financial liabilities 566,240      
Financial liabilities at amortised cost, class [member] | Financial liabilities at fair value, class [member]        
Financial liabilities by category        
Financial liabilities measured at fair value through profit or loss 0 256,231    
Financial assets at amortised cost, class [member]        
Financial assets by category        
Trade receivables 206,505 141,333    
Lease receivables 26,073 10,268    
Other receivables 8,687 9,322    
Cash and cash equivalents 812,260 616,041    
Financial assets measured at amortized cost € 1,053,525 € 776,964