Segment Information - Information by Business Segment (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) Segment golf_course	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments | Segment			5
Operating revenue	$ 33,654	$ 27,192	$ 77,235	$ 76,997
Income (loss) before income taxes	8,784	3,644	31,774	18,000
Total assets	919,686		$ 919,686		$ 1,027,945
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	9,411	3,122	$ 15,391	15,905
Income (loss) before income taxes	1,802	237	3,026	4,676
Total assets	115,758		115,758		112,220
Operating segments | Commercial real estate
Segment Reporting Information [Line Items]
Operating revenue	446	631	2,624	631
Income (loss) before income taxes	(466)	(496)	(1,115)	(1,644)
Total assets	58,134		58,134		60,150
Operating segments | Resorts and leisure
Segment Reporting Information [Line Items]
Operating revenue	18,198	19,046	45,633	47,590
Income (loss) before income taxes	2,916	2,420	4,521	3,414
Total assets	77,000		77,000		73,436
Operating segments | Leasing operations
Segment Reporting Information [Line Items]
Operating revenue	2,847	2,655	7,884	7,336
Income (loss) before income taxes	302	454	814	75
Total assets	107,986		107,986		80,863
Operating segments | Forestry
Segment Reporting Information [Line Items]
Operating revenue	2,562	1,509	5,236	5,233
Income (loss) before income taxes	2,437	1,282	4,808	4,376
Total assets	20,089		20,089		20,664
Other
Segment Reporting Information [Line Items]
Operating revenue	190	229	467	302
Income (loss) before income taxes	1,793	$ (253)	19,720	$ 7,103
Total assets	$ 540,719		$ 540,719		$ 680,612