Joint Ventures - Investment in unconsolidated JVs (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investments
Investment in unconsolidated joint ventures	$ 34,848	$ 5,084
Latitude Margaritaville Watersound JV
Investments
Investment in unconsolidated joint ventures	21,048	791
Pier Park TPS JV
Investments
Investment in unconsolidated joint ventures	2,192	3,083
Sea Sound Apartments JV
Investments
Investment in unconsolidated joint ventures	10,348
Busy Bee JV (SJBB, LLC)
Investments
Investment in unconsolidated joint ventures	$ 1,260	$ 1,210