Schedule III (Consolidated) - Real Estate and Accumulated Depreciation Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 55,040
Initial Cost to Company, Land & Improvements	155,637
Initial Cost to Company, Buildings & Improvements	138,506
Costs Capitalized Subsequent to Acquisition or Construction	87,826
Land & Land Improvements	248,291
Buildings and Improvements	133,678
Total	381,969	$ 377,668	$ 379,944	$ 436,264
Accumulated Depreciation	67,349	$ 64,069
Aggregate cost of real estate owned for federal income tax purposes	410,200
Residential developments
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,732
Initial Cost to Company, Land & Improvements	49,884
Initial Cost to Company, Buildings & Improvements	11,351
Costs Capitalized Subsequent to Acquisition or Construction	48,154
Land & Land Improvements	107,532
Buildings and Improvements	1,857
Total	109,389
Accumulated Depreciation	2,654
Commercial developments
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	4,769
Initial Cost to Company, Land & Improvements	35,656
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	22,276
Land & Land Improvements	57,932
Buildings and Improvements	0
Total	57,932
Accumulated Depreciation	42
WaterColor Inn
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company, Land & Improvements	1,137
Initial Cost to Company, Buildings & Improvements	13,692
Costs Capitalized Subsequent to Acquisition or Construction	5,984
Land & Land Improvements	1,568
Buildings and Improvements	19,245
Total	20,813
Accumulated Depreciation	$ 8,193
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	37,851
Initial Cost to Company, Buildings & Improvements	23,998
Costs Capitalized Subsequent to Acquisition or Construction	(2,989)
Land & Land Improvements	35,138
Buildings and Improvements	23,722
Total	58,860
Accumulated Depreciation	$ 26,474
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	6,400
Initial Cost to Company, Buildings & Improvements	9,529
Costs Capitalized Subsequent to Acquisition or Construction	2
Land & Land Improvements	6,286
Buildings and Improvements	9,645
Total	15,931
Accumulated Depreciation	$ 4,203
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	11,599
Costs Capitalized Subsequent to Acquisition or Construction	89
Land & Land Improvements	0
Buildings and Improvements	11,688
Total	11,688
Accumulated Depreciation	$ 4,137
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	$ 47,519
Initial Cost to Company, Land & Improvements	13,711
Initial Cost to Company, Buildings & Improvements	35,243
Costs Capitalized Subsequent to Acquisition or Construction	1,270
Land & Land Improvements	13,449
Buildings and Improvements	36,775
Total	50,224
Accumulated Depreciation	$ 4,238
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
Town centers
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company, Land & Improvements	823
Initial Cost to Company, Buildings & Improvements	20,332
Costs Capitalized Subsequent to Acquisition or Construction	(2,251)
Land & Land Improvements	784
Buildings and Improvements	18,120
Total	18,904
Accumulated Depreciation	$ 12,728
Town centers | Minimum
Real Estate and Accumulated Depreciation [Line Items]
Depreciation Life (in years)	10 years
Town centers | 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	3,203
Initial Cost to Company, Buildings & Improvements	8,491
Costs Capitalized Subsequent to Acquisition or Construction	(1,729)
Land & Land Improvements	2,024
Buildings and Improvements	7,941
Total	9,965
Accumulated Depreciation	$ 2,055
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	$ 20
Initial Cost to Company, Land & Improvements	466
Initial Cost to Company, Buildings & Improvements	2,399
Costs Capitalized Subsequent to Acquisition or Construction	274
Land & Land Improvements	740
Buildings and Improvements	2,399
Total	3,139
Accumulated Depreciation	$ 469
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	6,421
Initial Cost to Company, Buildings & Improvements	1,872
Costs Capitalized Subsequent to Acquisition or Construction	11,315
Land & Land Improvements	17,322
Buildings and Improvements	2,286
Total	19,608
Accumulated Depreciation	2,131
Unimproved land
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company, Land & Improvements	85
Initial Cost to Company, Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition or Construction	5,431
Land & Land Improvements	5,516
Buildings and Improvements	0
Total	5,516
Accumulated Depreciation	$ 25