v3.25.4
Goodwill and other intangible assets - intangible assets (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Finite-lived intangible assets        
Gross value   $ 5,923.4 $ 5,675.9  
Accumulated amortization and impairment   2,821.9 2,408.0  
Carrying value   3,101.5 3,267.9  
Indefinite-lived   92.3 92.3  
Total   3,193.8 3,360.2  
Amortization   301.1 299.8 $ 307.7
Accumulated impairment losses   106.4    
Impairment charges   785.0 0.0 $ 160.8
Ritter GmbH | Finite-Lived Intangible Assets | Bioscience Production        
Finite-lived intangible assets        
Impairment charges $ 106.4      
Customer relationships        
Finite-lived intangible assets        
Gross value   4,915.0 4,697.5  
Accumulated amortization and impairment   2,172.7 1,840.4  
Carrying value   2,742.3 2,857.1  
Accumulated impairment losses   65.9    
Trade names        
Finite-lived intangible assets        
Gross value   366.8 351.6  
Accumulated amortization and impairment   272.9 240.4  
Carrying value   93.9 111.2  
Other        
Finite-lived intangible assets        
Gross value   641.6 626.8  
Accumulated amortization and impairment   376.3 327.2  
Carrying value   265.3 $ 299.6  
Accumulated impairment losses   $ 40.5