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PLANT, PROPERTY AND EQUIPMENT, NET - Components of Plant, Property and Equipment, Net (Detail) - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Abstract]    
Land and improvements $ 29.2 $ 28.7
Machinery and equipment 1,062.3 1,039.9
Buildings and improvements 266.6 262.5
Furniture, fixtures and office equipment 75.1 74.5
Construction work in progress 66.1 58.4
Other 11.1 10.9
Plant, property and equipment, gross 1,510.4 1,474.9
Less: Accumulated depreciation (983.8) (953.2)
Plant, property and equipment, net $ 526.6 $ 521.7