SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Operating Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Total Operating Income	$ 49,261	$ 22,997
Unallocated interest expense and other	(7,897)	(8,720)
INCOME BEFORE INCOME TAXES	41,364	14,277
Real Estate | Dispositions | Timberland
Segment Reporting Information [Line Items]
Total Operating Income	28,200
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	13,939	15,753
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	(878)	1,385
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	10,243	4,744
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	29,665	4,225
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	1,097	350
Corporate and other
Segment Reporting Information [Line Items]
Total Operating Income	$ (4,805)	$ (3,460)