Annual report pursuant to Section 13 and 15(d)

Basis of Presentation - Net Property, Plant and Equipment (Detail)

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Basis of Presentation - Net Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, plant and equipment — at cost:      
Land and building $ 51.0 $ 51.0  
Furniture and fixtures 26.7 25.9  
Equipment 803.5 719.8  
Building and leasehold improvements 199.0 185.7  
Property, plant and equipment - at cost 1,080.2 982.4  
Less: accumulated depreciation and amortization (702.7) (604.4)  
Net property, plant and equipment $ 377.5 $ 378.0 $ 339.2