SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Depreciation, Depletion and Amortization) (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]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 41,867	$ 27,601	$ 111,567	$ 64,093
Timber Funds
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	3,500		3,500
Real Estate | Large Dispositions
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION			35,400
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	15,231	12,880	33,414	32,608
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	10,606	6,045	21,308	12,871
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	4,942	7,189	9,716	13,508
Operating Segments | Timber Funds
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	4,070	0	4,070	0
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	6,678	1,199	42,422	4,534
Corporate and Other
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 340	$ 288	$ 637	$ 572