REVENUE - Disaggregation of Revenue by Product (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	$ 194,538	$ 201,135	$ 535,581	$ 588,479
Lease Revenue	455	444	1,119	1,047
Total Revenue	194,993	201,579	536,700	589,526
Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	137,537	143,236	403,038	458,584
Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	33,165	33,908	104,658	107,791
Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	103,236	107,985	295,377	347,624
Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,136	1,343	3,003	3,169
Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	27,395	27,168	57,066	51,450
License Revenue, Primarily From Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	5,734	7,662	16,643	18,467
Land-Based Solutions
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	2,777	1,049	7,092	4,254
Other Non-Timber/Carbon Credit Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	18,604	18,187	32,425	27,777
Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	280	270	906	952
Total Real Estate Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	29,606	30,731	75,477	78,445
Improved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	11,999	3,120	16,399	20,155
Unimproved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers		114		114
Rural
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	13,766	20,461	29,964	42,587
Conservation Easement
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,101		1,101
Timberland & Non-Strategic
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers		1,055	16,111	2,947
Deferred Revenue/Other
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	2,740	5,981	11,902	12,642
Southern Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	45,352	54,131	156,117	174,984
Pacific Northwest Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	25,696	27,841	72,824	91,321
New Zealand Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	57,878	54,863	149,200	158,821
Trading | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,611	6,401	24,897	33,458
Elim.
Disaggregation of Revenue [Line Items]
Total Revenue	(88)	(111)	(232)	(357)
Operating Segments | Southern Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	62,019	63,973	191,322	204,125
Total Revenue	62,019	63,973	191,322	204,125
Operating Segments | Southern Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	45,352	54,131	156,117	174,984
Operating Segments | Southern Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	23,182	25,514	73,141	76,152
Operating Segments | Southern Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	21,034	27,274	79,973	95,663
Operating Segments | Southern Timber | Hardwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,136	1,343	3,003	3,169
Operating Segments | Southern Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	16,667	9,842	35,205	29,141
Operating Segments | Southern Timber | License Revenue, Primarily From Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	5,348	7,133	15,907	17,475
Operating Segments | Southern Timber | Land-Based Solutions
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	2,767	1,041	7,062	2,909
Operating Segments | Southern Timber | Other Non-Timber/Carbon Credit Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,552	1,668	12,236	8,757
Operating Segments | Pacific Northwest Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	27,248	29,325	76,723	96,061
Total Revenue	27,248	29,325	76,723	96,061
Operating Segments | Pacific Northwest Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	25,696	27,841	72,824	91,321
Operating Segments | Pacific Northwest Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,318	1,440	4,329	7,358
Operating Segments | Pacific Northwest Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	24,378	26,401	68,495	83,963
Operating Segments | Pacific Northwest Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,552	1,484	3,899	4,740
Operating Segments | Pacific Northwest Timber | License Revenue, Primarily From Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	290	439	515	780
Operating Segments | Pacific Northwest Timber | Land-Based Solutions
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	10	8	30	1,345
Operating Segments | Pacific Northwest Timber | Other Non-Timber/Carbon Credit Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,252	1,037	3,354	2,615
Operating Segments | New Zealand Timber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	66,774	70,435	166,256	175,438
Total Revenue	66,774	70,435	166,256	175,438
Operating Segments | New Zealand Timber | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	57,878	54,863	149,200	158,821
Operating Segments | New Zealand Timber | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,307	6,507	25,113	20,953
Operating Segments | New Zealand Timber | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	49,571	48,356	124,087	137,868
Operating Segments | New Zealand Timber | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,896	15,572	17,056	16,617
Operating Segments | New Zealand Timber | License Revenue, Primarily From Hunting
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	96	90	221	212
Operating Segments | New Zealand Timber | Other Non-Timber/Carbon Credit Revenue
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,800	15,482	16,835	16,405
Operating Segments | Real Estate
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	29,606	30,731	75,477	78,445
Lease Revenue	455	444	1,119	1,047
Total Revenue	30,061	31,175	76,596	79,492
Operating Segments | Real Estate | Total Real Estate Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	29,606	30,731	75,477	78,445
Operating Segments | Real Estate | Improved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	11,999	3,120	16,399	20,155
Operating Segments | Real Estate | Unimproved Development
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers		114		114
Operating Segments | Real Estate | Rural
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	13,766	20,461	29,964	42,587
Operating Segments | Real Estate | Conservation Easement
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	1,101		1,101
Operating Segments | Real Estate | Timberland & Non-Strategic
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers		1,055	16,111	2,947
Operating Segments | Real Estate | Deferred Revenue/Other
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	2,740	5,981	11,902	12,642
Operating Segments | Trading
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,891	6,671	25,803	34,410
Total Revenue	8,979	6,782	26,035	34,767
Operating Segments | Trading | Total Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,611	6,401	24,897	33,458
Operating Segments | Trading | Pulpwood
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	358	447	2,075	3,328
Operating Segments | Trading | Sawtimber
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	8,253	5,954	22,822	30,130
Operating Segments | Trading | Total Non-Timber Sales
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	280	270	906	952
Operating Segments | Trading | Agency Fee Income
Disaggregation of Revenue [Line Items]
Revenue from Contracts with Customers	280	270	906	952
Intersegment | Trading
Disaggregation of Revenue [Line Items]
Total Revenue	88	111	232	357
Intersegment | Elim.
Disaggregation of Revenue [Line Items]
Total Revenue	$ (88)	$ (111)	$ (232)	$ (357)