Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 2,120.3	$ 1,932.8
Less: Accumulated depreciation	(1,178.1)	(1,082.9)
Total property, plant and equipment, net	942.2	849.9
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	56.5	62.5
Building
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	465.5	460.1
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	1,504.4	1,311.4
Construction in Progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 93.9	$ 98.8