Annual report pursuant to Section 13 and 15(d)

Derivative Instruments and Hedging Activities - Additional Information (Detail)

v3.6.0.2
Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset fair value $ 7.4 $ 6.8
Derivative liability fair value 3.5 6.7
Cash flow hedges reclassified into earnings over next twelve months 5.7  
Foreign exchange currency contracts [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative asset fair value 7.4 6.8
Derivative liability fair value 3.5 6.7
Foreign exchange currency contracts [Member] | Derivatives designated as cash flow hedging instruments [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative aggregate notional amounts 90.0 112.8
Derivative asset fair value 4.6 4.2
Derivative liability fair value   0.5
Foreign exchange forward contracts [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative aggregate notional amounts $ 447.2 $ 478.9
Freestanding derivatives [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative average remaining maturity period 1 month 2 months
Maximum [Member] | Foreign exchange currency contracts [Member] | Derivatives designated as cash flow hedging instruments [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative maximum remaining maturity period 15 months  
Maximum [Member] | Foreign exchange forward contracts [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative maximum remaining maturity period 12 months 12 months