v3.26.3
Financial instruments - Categories of financial instruments (Details) - EUR (€)
€ in Millions
84 Months Ended
Jul. 15, 2033
Nov. 10, 2032
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial assets at amortized cost     € 275.6 € 324.8 € 193.6 € 403.3
Financial assets at amortised cost     538.5 424.5    
Financial assets at fair value through profit or loss     138.5 216.1    
Financial liabilities at amortised cost     (3,102.1) (3,031.7)    
Financial assets (liabilities) at fair value through other comprehensive income     (57.1) (126.7)    
Total     (2,482.2) (2,517.8)    
Borrowing costs capitalised € 6.1 € 1.2        
Derivative financial instruments            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial liabilities at amortised cost     0.0 0.0    
Financial liabilities     (74.6) (131.6)    
Financial Liabilities At Fair Value Through Other Comprehensive Income     (74.6) (131.6)    
Trade and other payables excluding non-financial liabilities            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial liabilities at amortised cost     (789.0) (740.5)    
Financial liabilities     (789.0) (740.5)    
Financial Liabilities At Fair Value Through Other Comprehensive Income     0.0 0.0    
Loans and borrowings            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial liabilities at amortised cost     (2,313.1) (2,291.2)    
Financial liabilities     (2,313.1) (2,291.2)    
Financial Liabilities At Fair Value Through Other Comprehensive Income     0.0 0.0    
Derivative financial instruments            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial assets     17.5 4.9    
Derivative financial assets held for hedging     17.5 4.9    
Trade and other receivables excluding non-financial assets            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial assets at amortised cost     401.4 315.8    
Financial assets     401.4 315.8    
Cash and cash equivalents            
Disclosure Of Financial Assets And Liabilities [Table] [Line Items]            
Financial assets at amortised cost     137.1 108.7    
Financial assets at fair value through profit or loss     138.5 216.1    
Financial assets     € 275.6 € 324.8