Debt, Net - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Aug. 31, 2021
Debt instruments
Outstanding debt	$ 227,474	$ 161,418
Unamortized Discount and Debt Issuance Costs	4,440	2,503
Debt, Net	223,034	158,915
PPN JV Loan, due November 2025, bearing interest at 4.1%
Debt instruments
Outstanding debt	43,582	44,568
Unamortized Discount and Debt Issuance Costs	248	314
Debt, Net	$ 43,334	$ 44,254
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
Outstanding debt	$ 37,897	$ 27,179
Unamortized Discount and Debt Issuance Costs	248	351
Debt, Net	$ 37,649	$ 26,828
Debt interest rate (as a percent)	5.00%	5.00%
PPC JV Loan, insured by HUD, due June 2060, bearing interest at 3.1% as of December 31, 2021
Debt instruments
Outstanding debt	$ 35,670	$ 36,084
Unamortized Discount and Debt Issuance Costs	1,056	1,079
Debt, Net	$ 34,614	35,005
Debt interest rate (as a percent)	3.10%		3.10%
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2% and swapped to a fixed rate of 4.4%
Debt instruments
Outstanding debt	$ 20,053	18,066
Unamortized Discount and Debt Issuance Costs	327	284
Debt, Net	$ 19,726	17,782
Effective interest rate (as a percent)	4.40%
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2% and swapped to a fixed rate of 4.4% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.20%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.1%
Debt instruments
Outstanding debt	$ 17,374	15,921
Unamortized Discount and Debt Issuance Costs	147	198
Debt, Net	$ 17,227	15,723
Effective interest rate (as a percent)	2.20%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.1% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.10%
Airport Hotel Loan, due March 2025, bearing interest at LIBOR plus 2.0%, with a floor rate of 3.0%
Debt instruments
Outstanding debt	$ 14,642	3,548
Unamortized Discount and Debt Issuance Costs	128	168
Debt, Net	$ 14,514	3,380
Floor rate (as a percent)	3.00%
Effective interest rate (as a percent)	3.00%
Airport Hotel Loan, due March 2025, bearing interest at LIBOR plus 2.0%, with a floor rate of 3.0% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.00%
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2%
Debt instruments
Outstanding debt	$ 14,650
Unamortized Discount and Debt Issuance Costs	964
Debt, Net	$ 13,686
Effective interest rate (as a percent)	2.30%
Pier Park Resort Hotel JV Loan, due April 2027, bearing interest at LIBOR plus 2.2% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.20%
Breakfast Point Hotel Loan, due November 2042, bearing interest at LIBOR plus 2.8%, with a floor rate of 3.8%
Debt instruments
Outstanding debt	$ 11,843
Unamortized Discount and Debt Issuance Costs	191
Debt, Net	$ 11,652
Floor rate (as a percent)	3.80%
Effective interest rate (as a percent)	3.80%
Breakfast Point Hotel Loan, due November 2042, bearing interest at LIBOR plus 2.8%, with a floor rate of 3.8% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.80%
The Lodge 30A JV Loan, due January 2028, bearing interest at 3.8%
Debt instruments
Outstanding debt	$ 7,474
Unamortized Discount and Debt Issuance Costs	179
Debt, Net	$ 7,295
Debt interest rate (as a percent)	3.80%
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 5,188	5,421
Unamortized Discount and Debt Issuance Costs	52	59
Debt, Net	$ 5,136	5,362
Effective interest rate (as a percent)	1.80%
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	1.70%
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
Debt, Net	$ 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%
Self-Storage Facility Loan, due November 2025, bearing interest at LIBOR plus 2.4%, with a floor rate of 2.9%
Debt instruments
Outstanding debt	$ 4,666
Unamortized Discount and Debt Issuance Costs	70
Debt, Net	$ 4,596
Floor rate (as a percent)	2.90%
Effective interest rate (as a percent)	2.90%
Self-Storage Facility Loan, due November 2025, bearing interest at LIBOR plus 2.4%, with a floor rate of 2.9% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.40%
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
Outstanding debt	$ 3,437
Unamortized Discount and Debt Issuance Costs	382
Debt, Net	$ 3,055
Floor rate (as a percent)	2.60%
Effective interest rate (as a percent)	2.60%
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) | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.10%
Beach Homes Loan, due May 2029, bearing interest at LIBOR plus 1.7%.
Debt instruments
Outstanding debt	$ 1,492	$ 1,545
Unamortized Discount and Debt Issuance Costs	15	17
Debt, Net	$ 1,477	$ 1,528
Effective interest rate (as a percent)	1.80%
Beach Homes Loan, due May 2029, bearing interest at LIBOR plus 1.7%. | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	1.70%	1.70%
Pier Park Outparcel Loan, due March 2027, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 1,370	$ 1,458
Unamortized Discount and Debt Issuance Costs	10	12
Debt, Net	$ 1,360	$ 1,446
Effective interest rate (as a percent)	1.80%
Pier Park Outparcel Loan, due March 2027, bearing interest at LIBOR plus 1.7% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	1.70%	1.70%
North Bay Landing Apartments Loan, due September 2024, bearing interest at LIBOR plus 2.5%, with a floor rate of 3.2%
Debt instruments
Outstanding debt	$ 1,342
Unamortized Discount and Debt Issuance Costs	254
Debt, Net	$ 1,088
Floor rate (as a percent)	3.20%
Effective 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% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.50%
WaterColor Crossings Loan, due February 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 1,265	$ 1,334
Unamortized Discount and Debt Issuance Costs	18	21
Debt, Net	$ 1,247	$ 1,313
Effective interest rate (as a percent)	1.80%
WaterColor Crossings Loan, due February 2029, bearing interest at LIBOR plus 1.7% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	1.70%	1.70%
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
Outstanding debt	$ 620
Unamortized Discount and Debt Issuance Costs	151
Debt, Net	$ 469
Floor rate (as a percent)	2.20%
Effective interest rate (as a percent)	2.20%
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% | LIBOR
Debt instruments
Basis spread on variable rate (as a percent)	2.00%