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Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]    
Total gross value $ 199,598 $ 195,187
Less accumulated depreciation (126,104) (120,627)
Total net value 73,494 74,560
Land    
Property, Plant and Equipment [Line Items]    
Total gross value 2,757 2,765
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Total gross value 21,131 21,088
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 155,633 148,912
Office furniture, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 12,529 10,622
Automotive equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 1,043 1,247
Construction in progress    
Property, Plant and Equipment [Line Items]    
Total gross value $ 6,505 $ 10,553