v3.26.1
Financial Risk Management - Interest Rate Risk and Credit Risk (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Credit risk    
Loans with variable interest conditions, percentage 5.00%  
One customer    
Credit risk    
Receivables percentage 33.00% 9.00%
Trade accounts receivables    
Credit risk    
Maximum exposure to credit risk € 135,963 € 116,111
Trade accounts receivables | United States    
Credit risk    
Maximum exposure to credit risk 43,335 59,084
Trade accounts receivables | Europe    
Credit risk    
Maximum exposure to credit risk 62,115 40,499
Trade accounts receivables | Rest of the world    
Credit risk    
Maximum exposure to credit risk 30,514 16,528
Contract assets    
Credit risk    
Maximum exposure to credit risk 28,295 46,034
Short-term investments    
Credit risk    
Maximum exposure to credit risk € 57,873 € 90,413