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Goodwill and Identifiable Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Indefinite Lived Intangible Assets By Major Class [Line Items]      
Number of steps for goodwill impairment test Two    
Goodwill impairment loss $ 0.0    
Amortization expense of intangible assets acquired 88.7 $ 118.9 $ 123.2
Trademarks [Member]      
Indefinite Lived Intangible Assets By Major Class [Line Items]      
Indefinite-lived intangible Assets (excluding goodwill) $ 251.0