Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Recorded to Income (Detail)

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Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Recorded to Income (Detail) - Selling, general and administrative expenses [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Foreign exchange currency contracts relating to inventory and intercompany management fee hedges [Member] | Derivatives designated as hedging instruments [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of Loss Recognized in Income $ (2.0) $ (0.5)
Foreign exchange currency contracts [Member] | Derivatives not designated as hedging instruments [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of Loss Recognized in Income $ (2.7) $ (1.3)