Derivative Instruments and Hedging Strategies - Summary of Derivatives Designated as Hedging Instruments Outstanding (Detail) - Derivatives Designated As Hedging Instruments - Foreign exchange contracts - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Sell
Derivative [Line Items]
Notional amount	$ 739,340	$ 820,546
Purchase
Derivative [Line Items]
Notional amount	$ 187,392	$ 212,348