Plant, Equipment and Timberlands (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Summary of Plant, Equipment and Timberlands

The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment are as follows:

Buildings	15 – 45 years
Machinery and equipment	5 – 40 years
Other	3 – 25 years

Plant, equipment and timberlands at December 31 were as follows:

In thousands	2023		2022
Land	$	24,145	$	23,718
Building	233,048		228,310
Machinery, equipment & other	1,070,965		1,031,012
Accumulated depreciation	(696,928)		(645,404)
	631,230		637,636
Construction in progress	31,686		38,175
Total	$	662,916	$	675,811