SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Operating Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total Operating Income	$ 38,552	$ 38,520
Unallocated interest expense and other	(8,425)	(6,378)
INCOME BEFORE INCOME TAXES	30,127	32,142
Real Estate | Large dispositions
Segment Reporting Information [Line Items]
Total Operating Income	28,700
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	15,070	21,520
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	(948)	(3,741)
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	5,448	15,720
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	26,774	10,027
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	(19)	480
Corporate and Other
Segment Reporting Information [Line Items]
Total Operating Income	$ (7,773)	$ (5,486)