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Schedule of Derivative Instruments in Statement of Financial Position at Fair Value (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Derivatives, Fair Value [Line Items]    
Derivative assets (liabilities), net $ (409) $ 325
Not Designated as Hedging Instrument | Foreign currency forward contracts | Prepayments    
Derivatives, Fair Value [Line Items]    
Derivative assets 95 528
Not Designated as Hedging Instrument | Foreign currency forward contracts | Other Current Liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liabilities $ (504) $ (203)