SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Operating Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total Operating Income	$ 31,393	$ 51,645	$ 69,913	$ 108,720
Unallocated interest expense and other	(6,865)	(5,197)	(13,242)	(12,630)
INCOME BEFORE INCOME TAXES	24,528	46,448	56,671	96,090
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	14,741	15,651	36,261	27,878
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	(3,815)	5,625	(7,556)	10,299
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	12,797	17,768	28,517	33,725
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	15,468	18,864	25,495	46,918
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	(171)	227	309	376
Corporate and other
Segment Reporting Information [Line Items]
Total Operating Income	$ (7,627)	$ (6,490)	$ (13,113)	$ (10,476)