The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Derivative Financial Instruments - Impact of Derivative Instruments on Consolidated Statement of Operations (Detail) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)			$ (1,410)	$ (5,703)
Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)			222	(169)
Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)			(292)	(3,553)
Zero Cost Collars [Member]
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)	$ 1,390	$ (2,803)	(1,410)	(3,905)
Zero Cost Collars [Member] \| Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)	50	(33)	222	(44)
Zero Cost Collars [Member] \| Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)	$ (41)	$ (1,600)	$ (292)	(1,803)
Forward [Member]
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)				(1,798)
Forward [Member] \| Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)				(125)
Forward [Member] \| Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)				$ (1,750)