SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Segment Sales) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
SALES	$ 186,512	$ 134,843
Southern Timber
Segment Reporting Information [Line Items]
SALES	32,715	44,740
Pacific Northwest Timber
Segment Reporting Information [Line Items]
SALES	24,792	19,309
New Zealand Timber
Segment Reporting Information [Line Items]
SALES	40,740	36,023
Real Estate
Segment Reporting Information [Line Items]
SALES	54,289	13,363
Real Estate | Timberland | Dispositions
Segment Reporting Information [Line Items]
SALES	42,000
Trading
Segment Reporting Information [Line Items]
SALES	$ 33,976	$ 21,408