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Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Property, Plant and Equipment
Property, plant and equipment, gross	$ 789,378	$ 762,422	$ 723,530
Less accumulated depreciation and amortization	(460,625)	(432,392)	(419,108)
Property, plant and equipment excluding capital projects in progress, net	328,753	330,030	304,422
Capital projects in progress	53,755	31,525	36,811
Property, plant and equipment, net	382,508	361,555	341,233
Land
Property, Plant and Equipment
Property, plant and equipment, gross	50,995	50,025	48,027
Buildings and site improvements
Property, Plant and Equipment
Property, plant and equipment, gross	233,694	233,123	220,684
Leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, gross	7,690	6,367	5,698
Machinery, equipment, and software
Property, Plant and Equipment
Property, plant and equipment, gross	$ 496,999	$ 472,907	$ 449,121

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- Definition

Represents the aggregate of long-lived physical assets excluding capital projects in progress used in the normal conduct of business and not intended for resale.

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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 of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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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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