Summary of Significant Accounting Policies (Supplemental Disclosures to Consolidated Statements of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property, plant and equipment additions	$ 1,505	$ 569	$ 1,521
Accrued timberlands reforestation and roads	1,667	1,142	1,190
Long-term debt and other liabilities assumed with CatchMark merger	0	323,102	0
Long-term debt assumed with Loutre merger	0	0	6,366
CASH FLOW INFORMATION
Interest, net of amounts capitalized	12,691	26,254	27,934
Income taxes, net	18,428	70,000	98,670
CatchMark Merger [Member]
NONCASH INVESTING AND FINANCING ACTIVITIES
Equity issued as consideration	0	508,314	0
Loutre Merger [Member]
NONCASH INVESTING AND FINANCING ACTIVITIES
Equity issued as consideration	$ 0	$ 0	$ 100,930