Annual report pursuant to Section 13 and 15(d)

Segment Information - Schedule of Property, Plant and Equipment and Deferred Tax Assets by Geographic Area (Detail)

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Segment Information - Schedule of Property, Plant and Equipment and Deferred Tax Assets by Geographic Area (Detail) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Schedule of Property Plant and Equipment and Deferred Tax Assets [Line Items]      
Total Property, Plant and Equipment, net $ 377.5 $ 378.0 $ 339.2
Total Deferred Tax Assets 174.5 281.2 252.4
United States [Member]      
Schedule of Property Plant and Equipment and Deferred Tax Assets [Line Items]      
Total Property, Plant and Equipment, net 289.8 290.7 264.2
Total Deferred Tax Assets 103.6 218.7 188.5
Foreign [Member]      
Schedule of Property Plant and Equipment and Deferred Tax Assets [Line Items]      
Total Property, Plant and Equipment, net 87.7 87.3 75.0
Total Deferred Tax Assets $ 70.9 $ 62.5 $ 63.9