v3.26.1
Trade payables and other current liabilities - Additional Information (Details)
€ in Thousands, $ in Millions
 12 Months Ended
Mar. 17, 2025
EUR (€)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
EUR (€)
Dec. 31, 2023
EUR (€)
Dec. 31, 2025
USD ($)
Dec. 31, 2021
EUR (€)
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Decrease in accrued expenses   € 13,500          
Accrued expenses - clinical trials   2,541   € 15,550      
Increase / (Decrease) in trade and other payables   (5,411)   1,959 € 8,675    
Decrease in payroll tax and other payroll liabilities   (300)          
Payroll tax and other payroll liabilities   6,600   6,300      
Increase in contract liability   18,100          
Current contract liabilities   36,172   18,100      
Current refund liabilities   313   7,835      
Payments to suppliers for goods and services   1,000   700      
Total revenues and other income   32,593   (7,191) € 36,207    
ICON Plc              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Increase / (Decrease) in trade and other payables   2,100          
ICON Plc | Non-clinicals              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Increase / (Decrease) in trade and other payables   1,300          
ICON Plc | Vendors Payables              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Increase / (Decrease) in trade and other payables   600          
LianBio, NBTXR3              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Current contract liabilities             € 16,500
Janssen              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Increase in contract liability € 18,100            
Adjustments for refunds provision   32,100          
Current refund liabilities € 30,600            
Payments to suppliers for goods and services | $     $ 6.4        
Net of payable reduction | $           $ 0.5  
Net of payable reduction, net   5,500          
Receipts from sales of goods and rendering of services   4,600          
NONORAY-312              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Accrued expenses - clinical trials       11,100      
1100 Study              
Disclosure of Trade Payables and Other Current Liabilities [Line Items]              
Accrued expenses - clinical trials   € 2,400   € 4,400