Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Components of property, plant and equipment
Land	$ 30,984	$ 30,912	$ 30,872
Land improvements and leasehold improvements	86,206	82,438	79,829
Buildings and storage facilities	379,681	365,744	360,234
Machinery and equipment	1,004,315	951,544	916,552
Construction in progress	47,656	36,541	44,420
Property, plant and equipment, gross	1,548,842	1,467,179	1,431,907
Less: accumulated depreciation	838,891	773,814	751,719
Property, plant and equipment, net	$ 709,951	$ 693,365	$ 680,188