Debt, Net - Schedule of Debt (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Debt instruments
Outstanding debt	$ 122,980	$ 94,507
Unamortized Discount and Debt Issuance Costs	2,458	1,978
Debt, Net	120,522	92,529
PPN JV Loan, due November 2025, bearing interest at 4.1%
Debt instruments
Outstanding debt	45,046	45,514
Unamortized Discount and Debt Issuance Costs	347	380
Debt, Net	$ 44,699	$ 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	$ 35,690	$ 34,610
Unamortized Discount and Debt Issuance Costs	1,074	1,087
Debt, Net	$ 34,616	$ 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	$ 14,292	$ 2,868
Unamortized Discount and Debt Issuance Costs	402	454
Debt, Net	$ 13,890	$ 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	$ 8,639
Unamortized Discount and Debt Issuance Costs	289
Debt, Net	$ 8,350
Basis spread on variable rate	2.20%	2.20%
Effective interest rate (as a percent)	2.40%
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	$ 6,095	$ 6,977
Debt, Net	$ 6,095	$ 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%
PPC II JV Loan, due October 2024, bearing interest at LIBOR plus 2.3%
Debt instruments
Outstanding debt	$ 5,174
Unamortized Discount and Debt Issuance Costs	224
Debt, Net	$ 4,950
Debt interest rate (as a percent)	2.30%
Effective interest rate (as a percent)	2.40%
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7%
Debt instruments
Outstanding debt	$ 3,596
Unamortized Discount and Debt Issuance Costs	69
Debt, Net	$ 3,527
Effective interest rate (as a percent)	1.90%
Beckrich Building III Loan, due August 2029, bearing interest at LIBOR plus 1.7% \| LIBOR
Debt instruments
Basis spread on variable rate	1.70%
Beach Homes Loan, due May 2029, bearing interest at LIBOR plus 1.7%.
Debt instruments
Outstanding debt	$ 1,571	$ 1,594
Unamortized Discount and Debt Issuance Costs	18	20
Debt, Net	$ 1,553	$ 1,574
Effective interest rate (as a percent)	1.90%
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	$ 1,500	$ 1,535
Unamortized Discount and Debt Issuance Costs	13	14
Debt, Net	$ 1,487	$ 1,521
Effective interest rate (as a percent)	1.90%
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	$ 1,377	$ 1,409
Unamortized Discount and Debt Issuance Costs	22	23
Debt, Net	$ 1,355	$ 1,386
Effective interest rate (as a percent)	1.90%
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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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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