Notes And Other Receivables - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable with imputed interest, net	$ 82,506	$ 85,866
Accounts and Financing Receivable, after Allowance for Credit Loss	262,333	221,650
Undrawn Funds On Loans	11,600
Notes Receivable, Fair Value Disclosure	61,955	52,638
Other receivables for rent, water, sewer usage	10,100	7,100
Allowance for rent, water, sewer usage receivables	(5,800)	(7,200)
Contract with Customer, Asset, Reclassified to Receivable	47,800
Insurance receivables	11,200	13,600
Other Receivables, Storage And Lease Payments, Marina	28,300	19,200
Home sale proceeds		23,600
Home sale proceeds		23,600
Other Receivables, Storage And Lease Payments, Marina	$ 28,300	19,200
RezPlot [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ownership percentage	50.00%
Debt instrument, face amount	$ 10,000
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Convertible Notes Payable	$ 5,600
Convertible Notes Payable	5,600
RezPlot [Member] | Convertible Secured Promissory Note | Convertible Debt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Convertible Notes Payable		2,000
Convertible Notes Payable		2,000
Marinas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for rent, water, sewer usage receivables	(1,700)	(1,400)
Installment notes receivable on manufactured homes, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 82,506	$ 85,866
Receivable with Imputed Interest, Effective Yield (Interest Rate)	7.70%	7.80%
Receivable With Imputed Interest, Term	14 years 10 months 24 days	15 years 2 months 12 days
Notes receivable from real estate developers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 61,955	$ 52,638
Receivable with Imputed Interest, Effective Yield (Interest Rate)	6.30%	6.20%
Receivable With Imputed Interest, Term	1 year 4 months 24 days	1 year 9 months 18 days
Other receivables, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 117,872	$ 83,146
Financing Receivable, Allowance for Credit Loss	(1,300)
Financing Receivable, Allowance for Credit Loss	(1,300)
Reported Value Measurement | Installment notes receivable on manufactured homes, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Receivables	20,500	19,600
Fair Value, Recurring | Installment notes receivable on manufactured homes, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, fair value adjustment	(800)	0	$ (1,276)	$ 991
Fair Value, Recurring | Estimate of Fair Value Measurement | Installment notes receivable on manufactured homes, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, fair value adjustment	(810)	(1,276)
Accounts and Financing Receivable, after Allowance for Credit Loss	82,506	85,866
Fair Value, Recurring | Reported Value Measurement | Installment notes receivable on manufactured homes, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable, fair value adjustment	469	(2,274)
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 82,506	$ 85,866