Property, Plant and Equipment - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,127,526	$ 2,124,622
Less: Accumulated depreciation	(1,437,435)	(1,424,958)
Property, plant and equipment, net	690,091	699,664
Land
Property, Plant and Equipment
Gross property, plant and equipment	97,718	95,324
Buildings and improvements
Property, Plant and Equipment
Gross property, plant and equipment	254,336	250,452
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,723,342	1,731,009
Uncompleted construction
Property, Plant and Equipment
Gross property, plant and equipment	$ 52,130	$ 47,837

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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