Property, Plant and Equipment - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,003,863	$ 1,949,978
Less: Accumulated depreciation	(1,334,639)	(1,285,686)
Property, plant and equipment, net	669,224	664,292
Land
Property, Plant and Equipment
Gross property, plant and equipment	94,929	94,551
Buildings and improvements
Property, Plant and Equipment
Gross property, plant and equipment	230,286	225,688
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,627,025	1,576,298
Uncompleted construction
Property, Plant and Equipment
Gross property, plant and equipment	$ 51,623	$ 53,441