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Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Abstract]    
Land $ 11.2 $ 11.2
Buildings and improvements 436.0 429.2
Machinery and equipment 1,375.5 1,367.6
Construction in progress 92.1 59.3
Subtotal 1,914.8 1,867.3
Less allowances for depreciation (1,407.5) (1,374.8)
Property, plant and equipment, net $ 507.3 $ 492.5