Other Income, Net - Gain on Contribution and Other Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income, Net
Gain on land contribution and mitigation credits			$ 3,290	$ 19,616
Watersound Fountains Independent Living JV
Other Income, Net
Gain on land contribution	$ 3,100		3,100
Sea Sound Apartments JV
Other Income, Net
Gain on land contribution and mitigation credits				4,300
Latitude Margaritaville Watersound JV
Other Income, Net
Gain on land contribution		$ 15,300		$ 15,300
Gain on additional infrastructure improvements contributed	100		200
Net present value of land contribution	$ 16,600		$ 16,600
Imputed interest rate (as a percent)			5.75%