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Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 178,143	$ 174,884
Less accumulated depreciation	(110,703)	(108,773)
Property, plant and equipment, net	67,440	66,111
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,756	2,756
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	19,814	19,844
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	132,440	132,159
Office furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,189	10,094
Automotive equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,713	1,832
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 11,231	$ 8,199

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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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