Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenues		$ 228,127	$ 257,962
Costs and expenses:
Cost of goods sold		212,160	224,350
Selling, general and administrative expenses		20,727	18,230
CatchMark merger-related expenses		0	2,209
Total costs and expenses		232,887	244,789
Operating income (loss)		(4,760)	13,173
Interest expense, net	[1]	282	(199)
Non-operating pension and other postretirement employee benefits		201	(228)
Other		(145)	10
Income (loss) before income taxes		(4,422)	12,756
Income taxes		4,117	3,504
Net income (loss)		$ (305)	$ 16,260
Net income (loss) per share:
Basic		$ 0	$ 0.2
Diluted		0	0.2
Dividends per share		$ 0.45	$ 0.45
Weighted-average shares outstanding
Basic		79,677	80,027
Diluted		79,677	80,167

[1] Bond discounts and deferred loan fees are reported within interest expense, net on the Condensed Consolidated Statements of Operations.