Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income				$ 38,566	$ 284,102
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		$ 27,496	$ 20,379	59,669	40,253
Basis of real estate sold		4,884	7,325	15,515	18,179
Change in deferred taxes				(2,215)	(2,089)
Pension and other postretirement employee benefits				3,223	7,397
Pension settlement charge					14,165
Equity-based compensation expense				3,856	4,424
Gain on fire damage		(23,110)	(9,868)	(23,110)	(9,592)
Interest received under swaps with other-than-insignificant financing element				(11,767)
Other, net				3,856	(599)
Change in working capital and operating-related activities, net				(14,334)	19,972
Real estate development expenditures				(4,304)	(5,190)
Funding of pension and other postretirement employee benefits				(2,304)	(2,264)
Proceeds from insurance recoveries				9,706	9,428
Net cash from operating activities				76,357	378,186
CASH FLOWS FROM INVESTING ACTIVITIES
Property, plant and equipment additions				(10,135)	(36,777)
Timberlands reforestation and roads				(10,714)	(8,388)
Acquisition of timber and timberlands				(1,621)	(42,218)
Interest received under swaps with other-than-insignificant financing element				10,904
Other, net				664	(1,383)
Net cash from investing activities				(10,902)	(88,766)
CASH FLOWS FROM FINANCING ACTIVITIES
Distributions to common stockholders				(71,920)	(61,048)
Repurchase of common stock				(394)	(4,156)
Repayments of long term debt					(3,000)
Other, net				(1,955)	(2,094)
Net cash from financing activities				(74,269)	(70,298)
Change in cash, cash equivalents and restricted cash				(8,814)	219,122
Cash, cash equivalents and restricted cash at beginning of period				345,591	296,772
Cash, cash equivalents and restricted cash at end of period		336,777	515,894	336,777	515,894
NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property, plant and equipment additions				178	946
Accrued timberlands reforestation and roads				2,460	614
Cash and cash equivalents		331,225	511,157	331,225	511,157
Restricted cash included in other long-term assets	[1]	$ 5,552	$ 4,737	$ 5,552	$ 4,737
Restricted Cash, Asset, Statement of Financial Position [Extensible List]		Other long-term assets	Other long-term assets	Other long-term assets	Other long-term assets
Total cash, cash equivalents, and restricted cash		$ 336,777	$ 515,894	$ 336,777	$ 515,894

[1] 1 Amounts included in restricted cash represent proceeds held by a qualified intermediary that were or are intended to be reinvested in timber and timberlands. At June 30, 2023 and 2022, $3.2 million and $0, respectively, was classified in Other current assets.