Higher and Better Use Timberlands and Real Estate Development Costs (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, beginning balance	$ 77,433
Plus: Current portion, beginning balance	4,932
Total Balance, beginning	82,365
Non-cash cost of land and real estate sold	(5,445)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	(4,820)
Capitalized real estate development investments	2,676
Capital expenditures (silviculture)	308
Intersegment transfers	2,695
Other	(77)
Total Balance, ending	77,702
Less: Current portion, ending balance	(12,252)
Non-current portion, ending balance	65,450
Land and Timber
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, beginning balance	65,959
Plus: Current portion, beginning balance	4,875
Total Balance, beginning	70,834
Non-cash cost of land and real estate sold	(5,101)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	(4,820)
Capitalized real estate development investments	0
Capital expenditures (silviculture)	308
Intersegment transfers	2,695
Other	0
Total Balance, ending	63,916
Less: Current portion, ending balance	(6,019)
Non-current portion, ending balance	57,897
Development Investments
Real Estate, Land and Land Development Costs [Roll Forward]
Non-current portion, beginning balance	11,474
Plus: Current portion, beginning balance	57
Total Balance, beginning	11,531
Non-cash cost of land and real estate sold	(344)
Timber depletion from harvesting activities and basis of timber sold in real estate sales	0
Capitalized real estate development investments	2,676
Capital expenditures (silviculture)	0
Intersegment transfers	0
Other	(77)
Total Balance, ending	13,786
Less: Current portion, ending balance	(6,233)
Non-current portion, ending balance	$ 7,553