SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Depreciation, Depletion and Amortization) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 28,707	$ 31,978	$ 104,706	$ 105,618
New Zealand Timber | Dispositions | Timberland
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION			8,900
Real Estate | Dispositions | Timberland
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION			8,100	21,900
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	12,736	9,988	37,092	37,102
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	6,481	6,668	23,766	14,978
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	8,478	5,956	29,341	17,252
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	735	9,260	14,038	35,988
Operating Segments | Trading
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	0	0	0	0
Corporate and other
Segment Reporting Information [Line Items]
DEPRECIATION, DEPLETION AND AMORTIZATION	$ 277	$ 106	$ 469	$ 298