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Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Property Plant And Equipment [Abstract]    
Land $ 56.1 $ 56.0
Buildings 407.4 403.0
Machinery and equipment 1,823.2 1,805.4
Property, plant and equipment, gross 2,286.7 2,264.4
Less: Accumulated depreciation (1,649.7) (1,614.1)
Total $ 637.0 $ 650.3