SEGMENT AND GEOGRAPHICAL INFORMATION - Schedule of Depreciation, Depletion and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 45,213	$ 69,700
Timber Funds, Portion Attributable To Noncontrolling Interests
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	4,900
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	14,359	18,182
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	16,284	10,702
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	7,250	4,774
Operating Segments | Timber Funds
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	5,500	0
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	1,557	35,745
Corporate and Other
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 263	$ 297