XML 75 R63.htm IDEA: XBRL DOCUMENT v3.23.2
Derivative Instruments - Additional Information (Detail)
3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
Derivative
Customer
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
Derivative
Customer
Jun. 30, 2022
USD ($)
Derivative [Line Items]        
Purchases of natural gas under existing commitments description     for two of its subsidiaries  
Number of subsidiaries for usage of electricity under existing commitments | Customer 2   2  
Usage of electricity under existing commitments description     for two of its subsidiaries.  
Number of derivative instruments holds for trading purposes | Derivative 0   0  
(Losses) gain on foreign exchange transactions included in other income net $ (1,244,000) $ 1,303,000 $ (1,159,000) $ 1,559,000
Natural Gas Usage [Member]        
Derivative [Line Items]        
Percentage of anticipated purchases hedged 23.00%   23.00%  
Anticipated purchases, hedged $ 3,478,000   $ 3,478,000  
Time period for hedged usage description     natural gas usage through December 31, 2025  
Electricity Usage [Member]        
Derivative [Line Items]        
Percentage of anticipated purchases hedged 19.00%   19.00%  
Anticipated purchases, hedged $ 1,329,000   $ 1,329,000  
Time period for hedged usage description     electricity usage through December 31, 2025  
Natural Gas And Electricity Purchased [Member]        
Derivative [Line Items]        
Purchase of natural gas or electricity $ 904,000 $ 1,651,000 $ 1,437,000 $ 2,238,000
Copper Purchases [Member]        
Derivative [Line Items]        
Percentage of anticipated purchases hedged 50.00% 33.00% 50.00% 33.00%
Time period for hedged purchases     9 months  
Derivative, Description of Hedged Item       over the next year
Copper Purchases [Member] | Cash Flow Hedges [Member]        
Derivative [Line Items]        
Anticipated purchases, hedged $ 2,725,000 $ 2,533,000 $ 2,725,000 $ 2,533,000
Aluminum Purchases [Member]        
Derivative [Line Items]        
Percentage of anticipated purchases hedged 61.00% 67.00% 61.00% 67.00%
Time period for hedged purchases     6 months  
Derivative, Description of Hedged Item       over the next year
Aluminum Purchases [Member] | Cash Flow Hedges [Member]        
Derivative [Line Items]        
Anticipated purchases, hedged $ 695,000 $ 935,000 $ 695,000 $ 935,000