SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Depreciation, Depletion and Amortization) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 43,283	$ 27,846	$ 154,851	$ 91,939
Timber Funds, Portion Attributable To Noncontrolling Interests
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	3,700		7,200
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	14,954	13,025	48,368	45,633
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	10,912	6,299	32,221	19,170
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	7,345	7,563	17,062	21,071
Operating Segments | Timber Funds
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	4,170	0	8,239	0
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	5,527	668	47,950	5,202
Corporate and Other
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 375	$ 291	$ 1,011	$ 863