Real Estate Joint Ventures - Summarized financial information by unconsolidated JV (Details) $ in Thousands			3 Months Ended	6 Months Ended		12 Months Ended
	Jul. 05, 2019 USD ($)	Jan. 14, 2019 USD ($)	Jun. 30, 2020 USD ($) home item	Jun. 30, 2020 USD ($) home item	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Jan. 31, 2020 USD ($)	Apr. 30, 2018 item
Investments
Net present value of land contribution			$ 16,600	$ 16,600
Notes receivable, net			3,084	3,084		$ 3,252
Outstanding debt			122,980	122,980		94,507
Unconsolidated joint ventures
Investments
Outstanding debt			19,723	19,723		$ 8,242
Latitude Margaritaville Watersound JV
Investments
Outstanding debt			55	55
Sea Sound Apartments JV
Investments
Cash contributed				4,900
Sea Sound Apartments JV | Sea Sound Apartments JV Loan
Investments
Loan amount							$ 40,300
Outstanding debt			0	0
Loan costs			$ 500	$ 500
Latitude Margaritaville Watersound JV
Investments
Number of units to be developed and constructed | home			3,500	3,500
Value of land contributed				$ 35,000
Cash contributed				2,200
Net present value of land contribution			$ 16,600	$ 16,600
Imputed interest rate (as a percent)				5.75%
Variable interest entity, ownership percentage				50.00%		50.00%
Average amount of land contribution returned per home				$ 10
Summarized financial information - Balance Sheets:
Investment in real estate			5,322	5,322		$ 1,116
Cash and cash equivalents			166	166		525
Other assets			2	2
Total assets			5,490	5,490		1,641
Debt, net			55	55
Other liabilities			304	304		58
Equity			5,131	5,131		1,583
Total liabilities and equity			5,490	5,490		$ 1,641
Historical cost basis of land contributed			1,300	1,300
Summarized financial information - Statement of Operations:
Total expenses			186	335
Net loss			$ (186)	$ (335)
Sea Sound Apartments JV
Investments
Number of units to be developed and constructed | item			300	300
Value of land contributed				$ 5,100
Mitigation bank credits contributed				400
Cash contributed				$ 1,900
Variable interest entity, ownership percentage				60.00%
Summarized financial information - Balance Sheets:
Investment in real estate			$ 14,705	$ 14,705
Cash and cash equivalents			3	3
Other assets			509	509
Total assets			15,217	15,217
Other liabilities			2,910	2,910
Equity			12,307	12,307
Total liabilities and equity			15,217	15,217
Summarized financial information - Statement of Operations:
Net loss			$ 0	$ 0
Pier Park TPS JV
Investments
Number of units to be developed and constructed | item								124
Value of land contributed		$ 1,700
Mitigation bank credits contributed					$ 100
Cash contributed					$ 200
Ownership percentage			50.00%	50.00%		50.00%
Summarized financial information - Balance Sheets:
Property and equipment, net			$ 18,502	$ 18,502		$ 14,775
Cash and cash equivalents			366	366		51
Other assets			512	512		12
Total assets			19,380	19,380		14,838
Debt, net			12,969	12,969		6,480
Other liabilities			1,952	1,952		2,193
Equity			4,459	4,459		6,165
Total liabilities and equity			19,380	19,380		14,838
Summarized financial information - Statement of Operations:
Total revenue			533	533
Cost of revenue			251	251
Expenses			260	260
Total expenses			511	511
Operating income			22	22
Interest expense			(34)	(34)
Net loss			(12)	(12)
Busy Bee JV (SJBB, LLC)
Investments
Value of land contributed	$ 1,400
Investment in unconsolidated joint venture			1,200	1,200		$ 1,200
Notes receivable, net			$ 200	$ 200
Ownership percentage			50.00%	50.00%		50.00%
Summarized financial information - Balance Sheets:
Property and equipment, net			$ 8,301	$ 8,301		$ 3,886
Cash and cash equivalents			45	45		36
Other assets			883	883		28
Total assets			9,229	9,229		3,950
Debt, net			6,301	6,301		1,349
Other liabilities			553	553		181
Equity			2,375	2,375		2,420
Total liabilities and equity			9,229	9,229		$ 3,950
Summarized financial information - Statement of Operations:
Total expenses			54	65
Net loss			$ (54)	$ (65)