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Derivative Instruments - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) Customer Derivative	Jun. 30, 2024 USD ($) Customer	Jun. 30, 2025 USD ($) Customer Derivative	Jun. 30, 2024 USD ($) Customer
Derivative [Line Items]
Number of subsidiaries for purchases of natural gas under existing commitments | Customer	2	2	2	2
Purchases of natural gas under existing commitments description			for two of its subsidiaries	for two of its subsidiaries
Number of subsidiaries for usage of electricity under existing commitments | Customer	2	2	2	2
Usage of electricity under existing commitments description			for two of its subsidiaries.	for two of its subsidiaries
Number of derivative instruments holds for trading purposes | Derivative	0		0
(Loss) gain on foreign exchange transactions included in other income net	$ (1,352)	$ 302	$ (1,131)	$ (190)
Pre-tax termination gain			559
Termination gain expected to be released			$ 537
Natural Gas Usage [Member]
Derivative [Line Items]
Percentage of anticipated purchases hedged	25.00%	4.00%	25.00%	4.00%
Anticipated purchases, hedged	$ 737	$ 1,830	$ 737	$ 1,830
Time period for hedged usage description			natural gas usage through December 31, 2025	natural gas usage through December 31, 2025
Electricity Usage [Member]
Derivative [Line Items]
Percentage of anticipated purchases hedged	28.00%	10.00%	28.00%	10.00%
Anticipated purchases, hedged	$ 527	$ 1,129	$ 527	$ 1,129
Time period for hedged usage description			electricity usage through December 31, 2025	electricity usage through December 31, 2025
Natural Gas And Electricity Purchased [Member]
Derivative [Line Items]
Purchase of natural gas or electricity	$ 961	$ 854	$ 2,085	$ 1,833
Copper Purchases [Member]
Derivative [Line Items]
Percentage of anticipated purchases hedged		41.00%		41.00%
Time period for hedged purchases				8 months
Copper Purchases [Member] | Cash Flow Hedges [Member]
Derivative [Line Items]
Anticipated purchases, hedged		$ 2,495		$ 2,495
Aluminum Purchases [Member]
Derivative [Line Items]
Percentage of anticipated purchases hedged	75.00%	56.00%	75.00%	56.00%
Time period for hedged purchases			5 months	6 months
Aluminum Purchases [Member] | Cash Flow Hedges [Member]
Derivative [Line Items]
Anticipated purchases, hedged	$ 556	$ 621	$ 556	$ 621

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