Property, Plant, and Equipment, at Cost (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule Of Property, Plant, And Equipment, At Cost

	December 31,
(in thousands)	2022		2021
Land	$	37,088	$	37,746
Land improvements	64,061		61,491
Leasehold improvements	1,832		1,893
Buildings	183,030		185,216
Machinery and equipment	1,279,425		1,275,828
Construction in progress	30,916		27,012
	1,596,352		1,589,186
Less: accumulated depreciation and amortization	936,354		912,416
Net property, plant, and equipment	$	659,998	$	676,770

Schedule Of Useful Lives Of Property, Plant, And Equipment

We depreciate the cost of property, plant, and equipment by the straight-line method over the following estimated useful lives:

Land improvements	15 - 40 years
Buildings	10 - 46 years
Machinery and equipment	3 - 30 years