Property, Plant and Equipment - Components (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment
Gross property, plant and equipment	$ 2,082,262	$ 1,949,978
Less: Accumulated depreciation	(1,387,709)	(1,285,686)
Property, plant and equipment, net	694,553	664,292
Land
Property, Plant and Equipment
Gross property, plant and equipment	95,569	94,551
Buildings and improvements
Property, Plant and Equipment
Gross property, plant and equipment	238,219	225,688
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,683,216	1,576,298
Uncompleted construction
Property, Plant and Equipment
Gross property, plant and equipment	$ 65,258	$ 53,441