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Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Mar. 31, 2024
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross $ 1,240.6 $ 1,286.0
Less: accumulated depreciation (885.8) (920.3)
Net property, plant and equipment 354.8 365.7
Land    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross 15.7 16.3
Buildings and improvements    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross $ 246.7 280.7
Buildings and improvements | Minimum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 10 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 40 years  
Machinery and equipment    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross $ 830.3 824.4
Machinery and equipment | Minimum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 3 years  
Machinery and equipment | Maximum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 15 years  
Office equipment    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross $ 92.3 97.0
Office equipment | Minimum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 3 years  
Office equipment | Maximum    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Useful life 10 years  
Construction in progress    
Property, Plant and Equipment [Abstract]    
Property, plant and equipment, Gross $ 55.6 $ 67.6