Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Property, Plant and Equipment - Components of Property, Plant and Equipment (Details)

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Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Mar. 31, 2024
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, at cost $ 3,689.9 $ 3,501.6
Less accumulated depreciation (1,520.9) (1,463.8)
Property, plant and equipment, net 2,169.0 2,037.8
Land    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, at cost 94.7 99.0
Buildings    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, at cost 747.0 577.4
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, at cost 2,316.2 2,149.9
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, at cost $ 532.0 $ 675.3