Other Assets - Notes Receivable, Net (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Jun. 30, 2020
Receivables
Notes receivable, net	$ 6,848	$ 3,252
Allowance for credit losses, Notes receivable		0
Accrued interest receivable	935	2,938
Latitude Margaritaville Watersound JV
Receivables
Secured revolving promissory note	10,000		$ 10,000
Maximum
Receivables
Allowance for credit losses, Notes receivable	100
Notes Receivable
Receivables
Accrued interest receivable	100	$ 100
Interest bearing revolving promissory note with Latitude Margaritaville Watersound JV, secured by the JV's real property - 5.0% interest rate, matures June 2025
Receivables
Notes receivable, net	$ 1,526
Interest rate (as a percent)	5.00%
Interest bearing home builder note 5.5% due July 2022
Receivables
Notes receivable, net	$ 1,308
Interest rate (as a percent)	5.50%	5.50%
Interest bearing homebuilder note - 5.5% interest rate, due December 2021
Receivables
Notes receivable, net	$ 794	$ 872
Interest rate (as a percent)	5.50%	5.50%
Interest bearing homebuilder note - 5.5% interest rate, due June 2021
Receivables
Notes receivable, net	$ 757	$ 1,514
Interest rate (as a percent)	5.50%	5.50%
Interest bearing homebuilder note - 5.5% interest rate, due September 2022, Note 1
Receivables
Notes receivable, net	$ 648
Interest rate, note (as a percent)	5.50%
Interest bearing homebuilder note - 5.5% interest rate, due September 2022, Note 2
Receivables
Notes receivable, net	$ 532
Interest rate, note (as a percent)	5.50%
Interest bearing homebuilder note - 5.5% interest rate, due September 2022, Note 3
Receivables
Notes receivable, net	$ 528
Interest rate, note (as a percent)	5.50%
Interest bearing note with a JV partner, secured by the partner's membership interest in the JV - 8.0% interest rate, due May 2039
Receivables
Notes receivable, net	$ 359	$ 363
Interest rate, note (as a percent)	8.00%	8.00%
Interest bearing note with a JV partner, secured by the partner's membership interest in the JV - 8.0% interest rate, due July 2039
Receivables
Notes receivable, net	$ 199	$ 206
Interest rate, note (as a percent)	8.00%	8.00%
Interest bearing homebuilder note - 6.3% interest rate, due March 2020
Receivables
Notes receivable, net	$ 128	$ 128
Interest rate (as a percent)	6.30%	6.30%
Various mortgage notes, secured by certain real estate, bearing interest at various rates
Receivables
Notes receivable, net	$ 69	$ 85
Interest bearing homebuilder note - 5.5% interest rate, paid in full May 2020
Receivables
Notes receivable, net		$ 84
Interest rate (as a percent)		5.50%