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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Property, Plant and Equipment, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 201,221		$ 201,221		$ 196,583
Less: accumulated depreciation and amortization	(82,728)		(82,728)		(76,412)
Total property, plant and equipment, net	118,493		118,493		120,171
Depreciation and amortization expense	3,200	$ 2,700	6,200	$ 5,700
Impairment of long-lived assets			0	$ 7,275
Land
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	13,450		13,450		13,450
Buildings
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	72,472		72,472		70,381
Machinery, equipment and fixtures
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	83,758		83,758		77,854
Computer software
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	24,110		24,110		23,644
Construction in progress
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 7,431		$ 7,431		$ 11,254