Segment Information - Information by Business Segment (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Segment golf_course	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments | Segment			5
Operating Revenue	$ 27,192	$ 27,830	$ 76,997	$ 82,768
Income (loss) before income taxes	3,644	4,002	18,000	2,805
Total Assets	986,429		$ 986,429		$ 982,742
Resorts and leisure
Segment Reporting Information [Line Items]
Number of golf courses | golf_course			4
Operating segments | Residential real estate
Segment Reporting Information [Line Items]
Operating Revenue	3,122	4,861	$ 15,905	14,291
Income (loss) before income taxes	237	(1,622)	4,676	(1,617)
Total Assets	108,514		108,514		109,791
Operating segments | Commercial real estate
Segment Reporting Information [Line Items]
Operating Revenue	631	0	631	4,660
Income (loss) before income taxes	(496)	(654)	(1,644)	(1,265)
Total Assets	60,484		60,484		62,649
Operating segments | Resorts and leisure
Segment Reporting Information [Line Items]
Operating Revenue	19,046	18,537	47,590	45,657
Income (loss) before income taxes	2,420	2,607	3,414	3,142
Total Assets	72,720		72,720		75,441
Operating segments | Leasing operations
Segment Reporting Information [Line Items]
Operating Revenue	2,655	2,528	7,336	6,741
Income (loss) before income taxes	454	517	75	1,001
Total Assets	81,188		81,188		81,400
Operating segments | Forestry
Segment Reporting Information [Line Items]
Operating Revenue	1,509	1,885	5,233	11,355
Income (loss) before income taxes	1,282	1,759	4,376	10,167
Total Assets	20,213		20,213		20,244
Other
Segment Reporting Information [Line Items]
Operating Revenue	229	19	302	64
Income (loss) before income taxes	(253)	$ 1,395	7,103	$ (8,623)
Total Assets	$ 643,310		$ 643,310		$ 633,217