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Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Property Plant And Equipment [Abstract]    
Land $ 32.4 $ 32.5
Buildings 232.5 224.6
Machinery and equipment 575.4 537.1
Computer software 23.8 20.9
Construction in progress 49.8 46.2
Less accumulated depreciation and amortization (412.9) (361.4)
Net property, plant and equipment $ 501.0 $ 499.9