v3.26.1
Trade receivables - Narrative (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Trade Receivables [Line Items]    
Trade receivables past due € 1.5 € 2.0
Receivables from contracts with customers 27.8 35.2
Increase (decrease) in receivables from contracts with customers (7.4)  
Canada    
Disclosure Of Trade Receivables [Line Items]    
Trade receivables past due 0.8 1.1
France    
Disclosure Of Trade Receivables [Line Items]    
Trade receivables past due € 0.5  
Austria    
Disclosure Of Trade Receivables [Line Items]    
Trade receivables past due   € 0.3