HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT INVESTMENTS (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, Beginning Balance	$ 85,609
Plus: Current portion, Beginning Balance	11,919
Total Balance, Beginning Balance	97,528
Non-cash cost of land and improved development	(1,207)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	(1,020)
Capitalized real estate development investments	1,677
Capital expenditures (silviculture)	35
Intersegment transfers	16
Total Balance, Ending Balance	97,029
Less: Current portion, Ending Balance	(20,742)
Non-current portion, Ending Balance	76,287
Capitalized interest	200
Land and Timber
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, Beginning Balance	59,189
Plus: Current portion, Beginning Balance	4,239
Total Balance, Beginning Balance	63,428
Non-cash cost of land and improved development	(974)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	(1,020)
Capitalized real estate development investments	0
Capital expenditures (silviculture)	35
Intersegment transfers	16
Total Balance, Ending Balance	61,485
Less: Current portion, Ending Balance	(7,948)
Non-current portion, Ending Balance	53,537
Development Investments
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, Beginning Balance	26,420
Plus: Current portion, Beginning Balance	7,680
Total Balance, Beginning Balance	34,100
Non-cash cost of land and improved development	(233)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	0
Capitalized real estate development investments	1,677
Capital expenditures (silviculture)	0
Intersegment transfers	0
Total Balance, Ending Balance	35,544
Less: Current portion, Ending Balance	(12,794)
Non-current portion, Ending Balance	$ 22,750