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Restructuring and Other (Income) Charges, net - Restructuring (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]      
Performance Chemicals' repositioning $ 172.7 $ 113.1  
Other 2.3 12.5 $ 0.0
Restructuring charges 175.0 125.6 0.0
Performance Chemicals      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 2.3    
Foreign currency translation adjustment 0.2    
Severance and other employee-related costs      
Restructuring Cost and Reserve [Line Items]      
Performance Chemicals' repositioning 9.8 8.6  
Other 0.3 9.8 0.0
Restructuring charges 10.1 18.4 0.0
Other charges (income)      
Restructuring Cost and Reserve [Line Items]      
Performance Chemicals' repositioning 39.7 1.5  
Other 0.4 0.1 0.0
Restructuring charges 40.1 1.6 0.0
Other charges (income) | Performance Chemicals      
Restructuring Cost and Reserve [Line Items]      
Other 0.2    
Asset disposal charges      
Restructuring Cost and Reserve [Line Items]      
Performance Chemicals' repositioning 123.2 103.0  
Other 1.6 2.6 0.0
Restructuring charges 124.8 $ 105.6 $ 0.0
Asset disposal charges | Performance Chemicals      
Restructuring Cost and Reserve [Line Items]      
Impairment of intangible assets, indefinite-lived (excluding goodwill) $ 1.6