Derivative Instruments - Summary of Change in Fair Value Reclassified or Expected to be Reclassified from Accumulated Other Comprehensive Loss to Earnings (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative [Line Items]
Amount released to pre - tax earnings	$ 4,653	$ 4,650	$ 9,352	$ 9,909
Amount released to pre - tax earnings	59,983	84,536	130,143	174,757
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] \| Realized (Gains) Losses from Settlement of Cash Flow Hedges [Member]
Derivative [Line Items]
Amount released to pre - tax earnings	6	7	13	14
Amount released to pre - tax earnings	(178)	(11)	(170)	(137)
Foreign Currency Purchase Contracts [Member] \| Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] \| Realized (Gains) Losses from Settlement of Cash Flow Hedges [Member]
Derivative [Line Items]
Estimated to be Reclassified in the Next 12 Months	28		28
Amount released to pre - tax earnings	6	7	13	14
Futures Contracts - Copper and Aluminum [Member] \| Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] \| Realized (Gains) Losses from Settlement of Cash Flow Hedges [Member]
Derivative [Line Items]
Estimated to be Reclassified in the Next 12 Months	72		72
Amount released to pre - tax earnings	$ (178)	$ (11)	$ (170)	$ (137)

Cost of product sold and service rendered, excluding depreciation, depletion, and amortization.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(a))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(d))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
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-Name Accounting Standards Codification
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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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