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Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total gross value	$ 174,884	$ 166,283
Less accumulated depreciation	(108,773)	(100,901)
Total net value	66,111	65,382
Land
Property, Plant and Equipment [Line Items]
Total gross value	2,756	2,756
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total gross value	$ 19,844	19,786
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	30 years
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total gross value	$ 132,159	124,199
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	15 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	3 years
Office furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total gross value	$ 10,094	7,403
Office furniture, fixtures and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Office furniture, fixtures and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	3 years
Automotive equipment
Property, Plant and Equipment [Line Items]
Total gross value	$ 1,832	1,747
Automotive equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	6 years
Automotive equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment estimated useful life	3 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total gross value	$ 8,199	$ 10,392

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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