Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Not Designated As Hedging Instruments Recorded to Income (Detail)

v3.19.2
Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Not Designated As Hedging Instruments Recorded to Income (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Foreign exchange currency contracts [Member] | Derivatives not designated as hedging instruments [Member] | Selling, general and administrative expenses [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of (Loss) Gain Recognized in Income $ (2.5) $ 1.1 $ (0.2) $ (1.6)