Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

SEGMENT AND GEOGRAPHICAL INFORMATION (Schedule of Segment Sales) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
SALES	$ 245,906	$ 200,964	$ 449,101	$ 395,455
Real Estate
Segment Reporting Information [Line Items]
SALES	49,860		85,924
Operating Segments \| Southern Timber
Segment Reporting Information [Line Items]
SALES	48,047	35,528	91,635	74,666
Operating Segments \| Pacific Northwest Timber
Segment Reporting Information [Line Items]
SALES	32,213	20,457	63,587	46,382
Operating Segments \| New Zealand Timber
Segment Reporting Information [Line Items]
SALES	69,653	77,322	122,617	118,196
Operating Segments \| Real Estate
Segment Reporting Information [Line Items]
SALES	49,860	25,620	85,924	79,909
Operating Segments \| Trading
Segment Reporting Information [Line Items]
SALES	46,162	42,037	85,373	76,302
Intersegment Eliminations
Segment Reporting Information [Line Items]
SALES	$ (29)	$ 0	$ (35)	$ 0