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Property, Net (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property, gross $ 1,026.8 $ 1,013.5
Less accumulated depreciation (626.0) (606.1)
Property, net 400.8 407.4
Land and land improvements    
Property, Plant and Equipment [Line Items]    
Property, gross 32.8 32.8
Buildings    
Property, Plant and Equipment [Line Items]    
Property, gross 236.6 231.8
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, gross $ 757.4 $ 748.9