Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 55,194
Initial Cost to Company, Land & Improvements	156,276
Initial Cost to Company, Buildings & Improvements	130,134
Costs Capitalized Subsequent to Acquisition or Construction	91,217
Land & Land Improvements	234,948
Buildings and Improvements	142,720
Total	377,668	$ 379,944	$ 436,264	$ 418,197
Accumulated Depreciation	64,069	$ 58,132
Aggregate cost of real estate owned for federal income tax purposes	535,000
Residential development
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,016
Initial Cost to Company, Land & Improvements	43,153
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	56,260
Land & Land Improvements	99,413
Buildings and Improvements	0
Total	99,413
Accumulated Depreciation	0
Commercial development
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,944
Initial Cost to Company, Land & Improvements	47,745
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	9,202
Land & Land Improvements	56,947
Buildings and Improvements	0
Total	56,947
Accumulated Depreciation	42
WaterColor Inn
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company, Land & Improvements	1,202
Initial Cost to Company, Buildings & Improvements	14,000
Costs Capitalized Subsequent to Acquisition or Construction	5,497
Land & Land Improvements	1,558
Buildings and Improvements	19,140
Total	20,698
Accumulated Depreciation	$ 7,558
WaterColor Inn | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
WaterColor Inn | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	40 years
Clubs and golf courses
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	38,447
Initial Cost to Company, Buildings & Improvements	24,053
Costs Capitalized Subsequent to Acquisition or Construction	(4,058)
Land & Land Improvements	34,863
Buildings and Improvements	23,579
Total	58,442
Accumulated Depreciation	$ 24,868
Clubs and golf courses | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Clubs and golf courses | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	25 years
Marinas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	6,252
Initial Cost to Company, Buildings & Improvements	9,619
Costs Capitalized Subsequent to Acquisition or Construction	261
Land & Land Improvements	6,469
Buildings and Improvements	9,663
Total	16,132
Accumulated Depreciation	$ 3,993
Marinas | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Marinas | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	25 years
Other
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	0
Initial Cost to Company, Buildings & Improvements	32,925
Costs Capitalized Subsequent to Acquisition or Construction	(18,772)
Land & Land Improvements	0
Buildings and Improvements	14,154
Total	14,154
Accumulated Depreciation	$ 6,246
Other | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Other | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	30 years
Pier Park North
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 48,200
Initial Cost to Company, Land & Improvements	2,641
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	45,807
Land & Land Improvements	13,632
Buildings and Improvements	34,816
Total	48,448
Accumulated Depreciation	$ 2,581
Pier Park North | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	15 years
Pier Park North | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	40 years
Towncenters
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	777
Initial Cost to Company, Buildings & Improvements	30,904
Costs Capitalized Subsequent to Acquisition or Construction	(12,166)
Land & Land Improvements	784
Buildings and Improvements	18,731
Total	19,515
Accumulated Depreciation	$ 12,752
Towncenters | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Towncenters | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	25 years
VentureCrossings
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	1,566
Initial Cost to Company, Buildings & Improvements	7,899
Costs Capitalized Subsequent to Acquisition or Construction	0
Land & Land Improvements	1,566
Buildings and Improvements	7,899
Total	9,465
Accumulated Depreciation	$ 0
VentureCrossings | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
VentureCrossings | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	25 years
Other
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 34
Initial Cost to Company, Land & Improvements	7,999
Initial Cost to Company, Buildings & Improvements	8,862
Costs Capitalized Subsequent to Acquisition or Construction	(7,176)
Land & Land Improvements	7,129
Buildings and Improvements	2,596
Total	9,725
Accumulated Depreciation	$ 3,983
Other | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Other | Maximum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	25 years
Timberlands
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	6,494
Initial Cost to Company, Buildings & Improvements	1,872
Costs Capitalized Subsequent to Acquisition or Construction	10,976
Land & Land Improvements	7,201
Buildings and Improvements	12,142
Total	19,343
Accumulated Depreciation	2,046
Unimproved land
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company, Land & Improvements	0
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	5,386
Land & Land Improvements	5,386
Buildings and Improvements	0
Total	5,386
Accumulated Depreciation	$ 0