Debt, Net - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Debt instruments
Outstanding debt	$ 161,418	$ 94,507
Unamortized Discount and Debt Issuance Costs	2,503	1,978
Debt, Net	158,915	92,529
PPN JV Loan, due November 2025, bearing interest at 4.1%
Debt instruments
Outstanding debt	44,568	45,514
Unamortized Discount and Debt Issuance Costs	314	380
Debt, Net	$ 44,254	$ 45,134
Debt interest rate (as a percent)	4.10%	4.10%
PPC JV Loan, due June 2060, bearing interest at 4.0%
Debt instruments
Outstanding debt	$ 36,084	$ 34,610
Unamortized Discount and Debt Issuance Costs	1,079	1,087
Debt, Net	$ 35,005	$ 33,523
Debt interest rate (as a percent)	4.00%	4.00%
Watersound Origins Crossings JV Loan, due May 2024, bearing interest at 5.0%
Debt instruments
Outstanding debt	$ 27,179	$ 2,868
Unamortized Discount and Debt Issuance Costs	351	454
Debt, Net	$ 26,828	$ 2,414
Debt interest rate (as a percent)	5.00%	5.00%
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2%
Debt instruments
Outstanding debt	$ 18,066
Unamortized Discount and Debt Issuance Costs	284
Debt, Net	$ 17,782
Effective interest rate (as a percent)	2.30%
Watercrest JV Loan, due June 2047, bearing interest at LIBOR plus 2.2% \| LIBOR
Debt instruments
Basis spread on variable rate	2.20%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.3%
Debt instruments
Outstanding debt	$ 15,921
Unamortized Discount and Debt Issuance Costs	198
Debt, Net	$ 15,723
Effective interest rate (as a percent)	2.40%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.3% \| LIBOR
Debt instruments
Basis spread on variable rate	2.30%
Community Development District debt, secured by certain real estate or other collateral, due May 2023 through May 2039, bearing interest at 3.6% to 6.0%
Debt instruments
Outstanding debt	$ 6,294	$ 6,977
Debt, Net	$ 6,294	$ 6,977
Community Development District debt, secured by certain real estate or other collateral, due May 2023 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 2023 through May 2039, bearing interest at 3.6% to 6.0% \| Maximum
Debt instruments
Debt interest rate (as a percent)	6.00%	6.00%
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 5,421
Unamortized Discount and Debt Issuance Costs	59
Debt, Net	$ 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	1.70%
Airport Hotel Loan, due March 2025, bearing interest at LIBOR plus 2.0%
Debt instruments
Outstanding debt	$ 3,548
Unamortized Discount and Debt Issuance Costs	168
Debt, Net	$ 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% \| LIBOR
Debt instruments
Basis spread on variable rate	2.00%
Beach Homes Loan, due May 2029, bearing interest at LIBOR plus 1.7%.
Debt instruments
Outstanding debt	$ 1,545	$ 1,594
Unamortized Discount and Debt Issuance Costs	17	20
Debt, Net	$ 1,528	$ 1,574
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	1.70%	1.70%
Pier Park Outparcel Construction Loan, due March 2027, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 1,458	$ 1,535
Unamortized Discount and Debt Issuance Costs	12	14
Debt, Net	$ 1,446	$ 1,521
Effective interest rate (as a percent)	1.80%
Pier Park Outparcel Construction Loan, due March 2027, bearing interest at LIBOR plus 1.7% \| LIBOR
Debt instruments
Basis spread on variable rate	1.70%	1.70%
WaterColor Crossings Construction Loan, due February 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 1,334	$ 1,409
Unamortized Discount and Debt Issuance Costs	21	23
Debt, Net	$ 1,313	$ 1,386
Effective interest rate (as a percent)	1.80%
WaterColor Crossings Construction Loan, due February 2029, bearing interest at LIBOR plus 1.7% \| LIBOR
Debt instruments
Basis spread on variable rate	1.70%	1.70%

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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