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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Goodwill [Line Items]          
Wrote-off of goodwill     $ 3.3    
Wrote-off definite-lived intangible assets     4.8    
Amortization expense for the definite-lived intangible assets $ 17.1 $ 17.2 34.1 $ 34.3  
Year one 68.0   68.0    
Year two 68.0   68.0    
Year three 68.0   68.0    
Year four 68.0   68.0    
Year five 68.0   68.0    
Trade Names [Member]          
Goodwill [Line Items]          
Indefinite-lived intangible assets, net of cumulative translation adjustment $ 5.6   5.6   $ 5.9
Wrote-off indefinite-lived intangible assets     $ 0.3    
Trade Names [Member] | Weighted Average [Member]          
Goodwill [Line Items]          
Weighted average estimated useful life     14 years    
Customer Relationships [Member] | Weighted Average [Member]          
Goodwill [Line Items]          
Weighted average estimated useful life     15 years    
Supply Contracts [Member] | Weighted Average [Member]          
Goodwill [Line Items]          
Weighted average estimated useful life     17 years    
Technology [Member] | Weighted Average [Member]          
Goodwill [Line Items]          
Weighted average estimated useful life     16 years