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Derivatives - Summary of Fair Value Amounts of Company's Derivative Instruments (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Derivatives, Fair Value [Line Items]    
Total net derivative (liability) asset designated as hedging instruments $ 3,924 $ 1,317
Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Total net derivative (liability) asset designated as hedging instruments (2,984) 7,400
Foreign Exchange Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Derivative assets 4,232 2,485
Derivative liabilities (308) (1,168)
Foreign Exchange Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Derivative assets 4,232 2,485
Derivative liabilities (308) (1,168)
Interest Rate Hedge [Member] | Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Derivative assets   $ 6,083
Derivative liabilities $ (6,908)