SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Operating Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Total Operating Income	$ 11,686	$ 31,393	$ 50,238	$ 69,913
Unallocated interest expense and other	(8,241)	(6,865)	(16,666)	(13,242)
INCOME BEFORE INCOME TAXES	3,445	24,528	33,572	56,671
Charges	13,498		15,985
Timber Funds, Portion Attributable To Noncontrolling Interests
Segment Reporting Information [Line Items]
Total Operating Income	2,000		2,000
Real Estate | Large Dispositions
Segment Reporting Information [Line Items]
Total Operating Income			28,700
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	11,208	14,741	26,278	36,261
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	(6,681)	(3,815)	(7,629)	(7,556)
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	4,973	12,797	10,422	28,517
Operating Segments | Timber Funds
Segment Reporting Information [Line Items]
Total Operating Income	(1,892)	0	(1,892)	0
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	24,848	15,468	51,622	25,495
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	102	(171)	83	309
Corporate and Other
Segment Reporting Information [Line Items]
Total Operating Income	$ (20,872)	$ (7,627)	$ (28,646)	$ (13,113)