Schedule IV (Consolidated) - Mortgage Loans on Real Estate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Mortgage Loans on Real Estate
Face amount of mortgages	$ 10,349
Carrying amount of mortgages	10,321	$ 2,683	$ 1,462	$ 2,995
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 128
Secured revolving promissory note with unconsolidated Latitude Margaritaville Watersound JV, homesite development
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.00%
Face amount of mortgages	$ 2,742
Carrying amount of mortgages	$ 2,714
Interest bearing homebuilder note - 5.5% interest rate, due July 2022
Mortgage Loans on Real Estate
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due July 2022
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 1,308
Carrying amount of mortgages	$ 1,308
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due November 2022, Note 1
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 1,111
Carrying amount of mortgages	$ 1,111
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due December 2022, Note 1
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 1,064
Carrying amount of mortgages	$ 1,064
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due November 2022, Note 2
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 940
Carrying amount of mortgages	$ 940
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due December 2022, Note 2
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 742
Carrying amount of mortgages	$ 742
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due June 2021
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 637
Carrying amount of mortgages	$ 637
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due December 2021
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 554
Carrying amount of mortgages	$ 554
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due September 2022, Note 1
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 532
Carrying amount of mortgages	$ 532
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 5.5% interest rate, due September 2022, Note 2
Mortgage Loans on Real Estate
Interest rate (as a percent)	5.50%
Face amount of mortgages	$ 528
Carrying amount of mortgages	$ 528
Amortization period	20 years
Seller financing | Interest bearing homebuilder note - 6.3% interest rate, due March 2020 (settled in January 2021)
Mortgage Loans on Real Estate
Interest rate (as a percent)	6.30%
Face amount of mortgages	$ 128
Carrying amount of mortgages	128
Principal Amount of Loans Subject to Delinquent Principal or Interest	128
Annual principal payment	$ 100
Amortization period	20 years
Various other seller financing | Various mortgage notes, secured by certain real estate, bearing interest at various rates
Mortgage Loans on Real Estate
Face amount of mortgages	$ 63
Carrying amount of mortgages	$ 63
Various other seller financing | Various mortgage notes, secured by certain real estate, bearing interest at various rates | Minimum
Mortgage Loans on Real Estate
Interest rate (as a percent)	6.40%
Various other seller financing | Various mortgage notes, secured by certain real estate, bearing interest at various rates | Maximum
Mortgage Loans on Real Estate
Interest rate (as a percent)	6.50%