SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Non-Cash Cost of Land and Improved Development) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	$ 3,471	$ 1,191	$ 7,579	$ 4,938
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	0	0	0	0
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	0	0	0	0
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	0	0	1,824	0
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	3,471	1,191	5,755	4,938
Operating Segments | Trading
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	0	0	0	0
Corporate and other
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	0	$ 0	0	$ 0
Timberland | Disposal Group, Not Discontinued Operations | Real Estate
Segment Reporting Information [Line Items]
Non-cash cost of improved development excluding amounts associated with dispositions	$ 1,800		$ 1,800