SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Segment Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
SALES	$ 191,546	$ 203,196
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
SALES	60,846	43,588
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
SALES	20,535	31,374
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
SALES	57,130	52,964
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
SALES	20,999	36,064
Operating Segments | Trading
Segment Reporting Information [Line Items]
SALES	32,065	39,212
Intersegment Eliminations
Segment Reporting Information [Line Items]
SALES	$ (29)	$ (6)