v3.26.1
Fair value measurement - Contingent Consideration (Details)
$ in Thousands, € in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
EUR (€)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Jun. 30, 2026
EUR (€)
Dec. 31, 2025
EUR (€)
Fair value measurement            
Contingent consideration $ 18,113     $ 18,736    
Changes in fair value of contingent consideration $ (82)   $ 3,470      
One hundred percent likelihood of AMT-260 advancing into clinical development            
Fair value measurement            
Percentage of increase in Probability of Success 100.00% 100.00%        
Changes in fair value of contingent consideration $ 58,400 € 51.3        
uniQure France [S.A.S]            
Fair value measurement            
Contingent consideration 18,113     $ 18,736 € 15.9 € 15.9
Contingent consideration discount rate percentage       11.80%    
Changes in fair value of contingent consideration (82)          
uniQure France [S.A.S] | Maximum            
Fair value measurement            
Contingent consideration payable upon achievement of contractually defined milestones $ 163,000       € 143.1  
Contingent consideration discount rate percentage 11.80% 11.80%        
uniQure France [S.A.S] | Minimum            
Fair value measurement            
Contingent consideration discount rate percentage 10.10% 10.10%