SEGMENT AND GEOGRAPHICAL INFORMATION - Schedule of Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Total Operating Income	$ 40,903	$ 123,314	$ 121,689	$ 236,242
Unallocated interest expense and other	(7,804)	(9,991)	(25,486)	(34,165)
Total Income before Income Taxes	33,099	113,323	96,203	202,077
Fund II Timberland Dispositions
Segment Reporting Information [Line Items]
Gain on sale			0	35,951
Pacific Northwest Timber
Segment Reporting Information [Line Items]
Timber write-offs from casualty events	1,100		1,100
Timber Funds, Portion Attributable To Noncontrolling Interests
Segment Reporting Information [Line Items]
Total Operating Income		(30,500)		(33,300)
Timber Funds, Portion Attributable To Noncontrolling Interests | Disposal Group, Not Discontinued Operations
Segment Reporting Information [Line Items]
Gain on sale		(3,700)		(3,700)
Timber Funds, Portion Attributable To Noncontrolling Interests | Disposal Group, Not Discontinued Operations | Fund II Timberland Dispositions
Segment Reporting Information [Line Items]
Gain on sale		28,800		28,800
Timber Funds, Portion Attributable To Parent | Disposal Group, Not Discontinued Operations | Fund II Timberland Dispositions
Segment Reporting Information [Line Items]
Gain on sale		7,200		7,200
Real Estate | Disposal Group, Not Discontinued Operations | Multi-Family Apartment Complex Sale
Segment Reporting Information [Line Items]
Gain on sale	11,500		11,500
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	22,474	12,778	76,883	47,105
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	2,179	2,071	11,729	5,293
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	9,280	13,302	22,653	47,959
Operating Segments | Timber Funds
Segment Reporting Information [Line Items]
Total Operating Income	0	41,285	0	44,778
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	15,749	60,617	36,953	112,816
Operating Segments | Real Estate | Large Dispositions
Segment Reporting Information [Line Items]
Total Operating Income		14,500		44,800
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	177	(33)	84	628
Corporate and Other
Segment Reporting Information [Line Items]
Total Operating Income	$ (8,956)	$ (6,706)	$ (26,613)	$ (22,337)