v3.26.3
Related party transactions (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Mar. 30, 2026
Dec. 31, 2025
Related Party Transaction [Line Items]            
Equity method investments $ 5.4   $ 5.4     $ 0.0
Net sales 1,167.9 $ 742.7 2,774.2 $ 1,896.2    
Accounts receivable - net 262.9   262.9     204.4
Accounts payable 546.3   546.3     $ 273.3
Related Party | Nordic LuxCo            
Related Party Transaction [Line Items]            
Equity method investment, ownership percentage         24.90%  
Equity method investments         $ 7.3  
Net sales 0.4   3.2      
Accounts receivable - net 0.0   0.0      
Related party transaction, amounts of transaction 0.7   0.7      
Accounts payable $ 0.7   $ 0.7