Information Related to Effect of Derivative Instruments on Our Consolidated Condensed Statements of (Loss) Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments Gain Loss [Line Items]
Gain (loss) on derivatives	$ 520	$ 89	$ (3,664)	$ 1,758
Other comprehensive income (loss) | Foreign Currency Derivatives
Derivative Instruments Gain Loss [Line Items]
Gain (loss) on derivatives	1,275	(257)	(2,062)	806
Cost of sales | Foreign Currency Derivatives
Derivative Instruments Gain Loss [Line Items]
Gain (loss) on derivatives	(742)	328	(1,460)	1,003
Foreign currency (loss) gain | Foreign Currency Derivatives
Derivative Instruments Gain Loss [Line Items]
Gain (loss) on derivatives	$ (13)	$ 18	$ (142)	$ (51)