Joint Ventures - Unconsolidated JV - Latitude Margaritaville Watersound JV (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($) home	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) home	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Summarized financial information
Investment in real estate	$ 647,874		$ 647,874		$ 551,653
Cash and cash equivalents	27,260	$ 102,351	27,260	$ 102,351	106,794
Other assets	69,897		69,897		65,866
Total assets	1,136,550		1,136,550		1,037,324
Debt, net	196,099		196,099		158,915
Other liabilities	91,758		91,758		72,035
Equity	598,618	552,420	598,618	552,420	568,170	$ 588,515	$ 542,650	$ 529,670
Total liabilities and equity	1,136,550		1,136,550		1,037,324
Total expenses	37,835	31,016	115,090	75,890
Net income	14,777	7,782	41,759	25,666
Latitude Margaritaville Watersound JV
Investments
Amount as lender of secured revolving promissory note	10,000		10,000		10,000		$ 10,000
Latitude Margaritaville Watersound JV
Investments
Contractual value of land and improvements to be contributed	35,000		35,000
Cash contributed			11,700
Net present value of land contribution	16,600		16,600
Cash contributed by JV partner	11,700		$ 11,700
Imputed interest rate (as a percent)			5.75%
Amount of infrastructure improvements completed	3,100		$ 3,100		$ 1,800
Variable interest entity, ownership percentage			50.00%		50.00%
Average amount of land contribution returned per home			$ 10
Summarized financial information
Historical cost basis of land contributed	1,300		1,300		$ 1,300
Latitude Margaritaville Watersound JV
Summarized financial information
Investment in real estate	46,274		46,274		18,255
Cash and cash equivalents	9,506		9,506		1,603
Other assets	946		946		136
Total assets	56,726		56,726		19,994
Debt, net	13,828		13,828		2,844
Other liabilities	21,034		21,034		1,794
Equity	21,864		21,864		15,356
Total liabilities and equity	56,726		56,726		$ 19,994
Total expenses	1,687	260	4,763	595
Net income	$ (1,687)	$ (260)	$ (4,763)	$ (595)
Latitude Margaritaville Watersound JV | Residential homes
Investments
Number of units to be developed, under development, or developed and constructed | home	3,500		3,500