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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,128,139	$ 987,661
Less: accumulated depreciation and amortization	(634,136)	(570,319)
Property, plant and equipment, net	494,003	417,342	$ 343,083
Land and land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	36,884	37,040
Buildings And Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	376,705	355,425
Production and other equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	588,625	537,211
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 125,925	$ 57,985

X

- Definition

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

+ References

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- Definition

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.

+ References

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