SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Segment Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 259,130	$ 191,546
Real Estate
Segment Reporting Information [Line Items]
Revenue	118,564	20,999
Real Estate | Large dispositions
Segment Reporting Information [Line Items]
Revenue	116,000
Trading
Segment Reporting Information [Line Items]
Revenue	18,971	32,036
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Revenue	52,982	60,846
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Revenue	31,075	20,535
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Revenue	37,538	57,130
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Revenue	118,564	20,999
Operating Segments | Trading
Segment Reporting Information [Line Items]
Revenue	18,984	32,065
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(13)	(29)
Intersegment Eliminations | Trading
Segment Reporting Information [Line Items]
Revenue	$ 13	$ 29