Debt, Net - Debt Agreements (Details) $ in Thousands	1 Months Ended												108 Months Ended	120 Months Ended
	Oct. 31, 2021 USD ($)	Aug. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Apr. 30, 2021	Mar. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Nov. 30, 2020 USD ($)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	May 31, 2019 USD ($)	Aug. 31, 2031	Jun. 30, 2030	Dec. 31, 2022	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 31, 2019 USD ($)	May 31, 2018 USD ($) item	Feb. 28, 2018 USD ($)	Mar. 31, 2017 USD ($)	Oct. 31, 2015 USD ($)
Debt instruments
Outstanding debt																$ 227,474	$ 161,418
Total Community Development District debt																14,100	15,800
Assets pledged as collateral																352,800
PPN JV Loan, due November 2025, bearing interest at 4.1%
Debt instruments
Loan amount																						$ 48,200
Outstanding debt																$ 43,582	$ 44,568
Debt interest rate (as a percent)																4.10%	4.10%
Watersound Origins Crossings JV Loan, due May 2024, bearing interest at 5.0%
Debt instruments
Loan amount												$ 37,900
Outstanding debt																$ 37,897	$ 27,179
Debt instrument, period subject to interest payments only												32 months
Debt interest rate (as a percent)																5.00%	5.00%
PPC JV Loan, insured by HUD, due June 2060, bearing interest at 3.1%
Debt instruments
Outstanding debt																$ 35,670	$ 36,084
Debt interest rate (as a percent)		3.10%														3.10%
PPC JV Loan, insured by HUD, due June 2060, bearing interest at 3.1% | Minimum | Forecast
Debt instruments
Prepayment premium, as a percent of principal repaid													2.00%
PPC JV Loan, insured by HUD, due June 2060, bearing interest at 3.1% | Maximum
Debt instruments
Loan costs																$ 100
PPC JV Loan, insured by HUD, due June 2060, bearing interest at 3.1% | Maximum | Forecast
Debt instruments
Prepayment premium, as a percent of principal repaid													10.00%
PPC JV Loan, due June 2060, bearing interest at 3.99%
Debt instruments
Loan amount																			$ 36,600
Debt interest rate (as a percent)																			4.00%
PPC JV Loan, due June 2060, bearing interest at 3.99% | Minimum | Forecast
Debt instruments
Prepayment premium, as a percent of principal repaid														1.00%
PPC JV Loan, due June 2060, bearing interest at 3.99% | Maximum | Forecast
Debt instruments
Prepayment premium, as a percent of principal repaid														9.00%
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2% and swapped to a fixed rate of 4.4%
Debt instruments
Loan amount											$ 22,500
Outstanding debt																20,053	18,066
Debt instrument, period subject to interest payments only											36 months
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2% and swapped to a fixed rate of 4.4% | Interest Rate Swap [Member]
Debt instruments
Notional amount											$ 20,000
Fixed interest rate (as a percent)											4.40%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.1%
Debt instruments
Loan amount										$ 17,500
Outstanding debt																17,374	15,921
Company's liability as guarantor, upon satisfaction of final advance conditions (as a percent)				50.00%
Company's liability as guarantor, upon reaching and maintaining a certain debt service coverage ratio (as a percent)										25.00%
Airport Hotel Loan, due March 2025, bearing interest at LIBOR plus 2.0%, with a floor rate of 3.0%
Debt instruments
Loan amount									$ 15,300
Outstanding debt																14,642	3,548
Debt instrument, period subject to interest payments only									36 months
Breakfast Point Hotel Loan, due November 2042, bearing interest at LIBOR plus 2.8%, with a floor rate of 3.8%
Debt instruments
Loan amount							$ 16,800
Outstanding debt																11,843
Debt instrument, period subject to interest payments only							24 months
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Loan amount																		$ 5,500
Outstanding debt																5,188	5,421
Community Development District debt, secured by certain real estate or other collateral, due May 2022 through May 2039, bearing interest at 3.6% to 6.0%
Debt instruments
Outstanding debt																$ 4,909	$ 6,294
Community Development District debt, secured by certain real estate or other collateral, due May 2022 through May 2039, bearing interest at 3.6% to 6.0% | Minimum
Debt instruments
Debt interest rate (as a percent)																3.60%	3.60%
Community Development District debt, secured by certain real estate or other collateral, due May 2022 through May 2039, bearing interest at 3.6% to 6.0% | Maximum
Debt instruments
Debt interest rate (as a percent)																6.00%	6.00%
The Lodge 30A JV Loan, due January 2028, bearing interest at 3.8%
Debt instruments
Loan amount						$ 15,000
Outstanding debt																$ 7,474
Debt instrument, period subject to interest payments only						24 months
Debt service coverage period						24 months
Debt interest rate (as a percent)																3.80%
Company's liability as guarantor, third year (as a percent)						75.00%
Company's liability as guarantor, fourth year (as a percent)						50.00%
Company's liability as guarantor, fifth year (as a percent)						25.00%
Self-Storage Facility Loan, due November 2025, bearing interest at LIBOR plus 2.4%, with a floor rate of 2.9%
Debt instruments
Loan amount							$ 5,800
Outstanding debt																$ 4,666
Debt instrument, period subject to interest payments only							48 months
Self-Storage Facility Loan, due November 2025, bearing interest at LIBOR plus 2.4%, with a floor rate of 2.9% | Maximum
Debt instruments
Amount of liability as guarantor							$ 2,900
Beach Homes Loan, due May 2029, bearing interest at LIBOR plus 1.7%.
Debt instruments
Loan amount																			$ 1,700
Outstanding debt																1,492	$ 1,545
Number of homes financed | item																			2
Pier Park Outparcel Loan, due March 2027, bearing interest at LIBOR plus 1.7%
Debt instruments
Loan amount																					$ 1,600
Outstanding debt																1,370	1,458
WaterColor Crossings Loan, due February 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Loan amount																				$ 1,900
Outstanding debt																1,265	$ 1,334
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2%
Debt instruments
Loan amount								$ 52,500
Outstanding debt																14,650
Debt instrument, period subject to interest payments only								36 months
Debt service coverage period								12 months
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2% | Maximum
Debt instruments
Loan amount								$ 60,000
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2% | Interest Rate Swap [Member]
Debt instruments
Notional amount								$ 42,000
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2% | Interest Rate Swap [Member] | Forecast
Debt instruments
Fixed interest rate (as a percent)															3.20%
North Bay Landing Apartments Loan, due September 2024, bearing interest at LIBOR plus 2.5%, with a floor rate of 3.2%
Debt instruments
Loan amount					$ 26,800
Outstanding debt																1,342
Loan extension period					18 months
Company's liability as guarantor, upon satisfaction of final advance conditions (as a percent)					50.00%
Company's liability as guarantor, upon reaching and maintaining a certain debt service coverage ratio (as a percent)					25.00%
Watersound Camp Creek Loan, due December 2047, bearing interest at LIBOR plus 2.1%, with a floor rate of 2.6% (effective rate of 2.6% at December 31, 2021)
Debt instruments
Loan amount			$ 28,000
Outstanding debt																3,437
Debt instrument, period subject to interest payments only			18 months
Company's liability as guarantor, upon reaching and maintaining a trailing six months operations with a certain debt service coverage ratio (as a percent)			50.00%
Trailing period one for determining Company's liability as guarantor under loan			6 months
Company's liability as guarantor, upon reaching and maintaining a trailing twelve months operations with a certain debt service coverage ratio (as a percent)			25.00%
Trailing period two for determining Company's liability as guarantor under loan			12 months
Watersound Town Center Grocery LoanWatersound Town Center Grocery Loan, due August 2031, bearing interest at LIBOR plus 2.0%, with a floor rate of 2.2%
Debt instruments
Loan amount		$ 12,000
Outstanding debt																620
Debt instrument, period subject to interest payments only		24 months
Company's liability as guarantor, upon satisfaction of final advance conditions (as a percent)		50.00%
Company's liability as guarantor, upon reaching and maintaining a certain debt service coverage ratio (as a percent)		25.00%
Occupancy requirement (as a percent)		93.00%
Occupancy period		90 days
Hotel Indio Loan
Debt instruments
Loan amount	$ 21,200
Outstanding debt																0
Debt instrument, period subject to interest payments only	24 months
Loan costs																$ 300
Loan extension period	60 months