Joint Ventures - Unconsolidated JV Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Investments
Outstanding debt	$ 185,957	$ 161,418
Unconsolidated joint ventures
Investments
Outstanding debt	58,295	33,088
Latitude Margaritaville Watersound JV
Investments
Outstanding debt	11,207	3,297
Sea Sound Apartments JV
Investments
Outstanding debt	26,355	8,789
Pier Park TPS JV
Investments
Outstanding debt	14,268	14,388
Busy Bee JV (SJBB, LLC)
Investments
Outstanding debt	6,465	6,614
Latitude Margaritaville Watersound JV
Investments
Amount as lender of secured revolving promissory note	$ 10,000	$ 10,000	$ 10,000