SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Operating Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Total Operating Income	$ 10,987	$ 46,378	$ 80,900	$ 155,097
Unallocated interest expense and other	(7,208)	(7,343)	(20,451)	(19,972)
INCOME BEFORE INCOME TAXES	3,779	39,035	60,449	135,125
Operating Segments | Southern Timber
Segment Reporting Information [Line Items]
Total Operating Income	9,512	9,183	45,773	37,061
Operating Segments | Pacific Northwest Timber
Segment Reporting Information [Line Items]
Total Operating Income	(3,567)	1,911	(11,123)	12,209
Operating Segments | New Zealand Timber
Segment Reporting Information [Line Items]
Total Operating Income	10,104	16,416	38,621	50,141
Operating Segments | Real Estate
Segment Reporting Information [Line Items]
Total Operating Income	425	24,726	25,920	71,645
Operating Segments | Trading
Segment Reporting Information [Line Items]
Total Operating Income	(37)	304	271	680
Corporate and Other
Segment Reporting Information [Line Items]
Total Operating Income	$ (5,450)	$ (6,162)	$ (18,562)	$ (16,639)