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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Total gross value $ 180,680 $ 179,080
Less accumulated depreciation (124,881) (120,911)
Total net value 55,799 58,169
Land    
Property, Plant and Equipment [Line Items]    
Total gross value 2,760 2,755
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Total gross value 20,638 21,124
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 148,907 146,662
Office furniture, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 5,165 5,201
Automotive equipment    
Property, Plant and Equipment [Line Items]    
Total gross value 975 1,039
Construction in progress    
Property, Plant and Equipment [Line Items]    
Total gross value $ 2,235 $ 2,299