Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities:
Consolidated net income	$ 276,000	$ 241,416	$ 295,922
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Loss/(Gain) on sale of real estate, net	59	0	(52,507)
Early debt retirement	2,784	10,786	1,491
Depreciation and amortization	191,432	157,760	153,980
Amortization of loan costs	4,671	3,473	3,479
Debt premium amortization	(325)	(394)	(483)
Equity in income of unconsolidated joint ventures	(3,881)	(5,399)	(8,755)
Distributions of income from unconsolidated joint ventures	52	95	5,133
Proceeds from insurance claims, net	(875)	(1,697)	(3,530)
Compensation expense related to incentive plans	12,694	11,527	10,481
Revenue recognized from membership upgrade sales upfront payments	(11,191)	(9,675)	(8,660)
Commission expense recognized related to membership sales	3,779	3,673	3,667
Long-term incentive plan compensation	0	1,531	(2,843)
Changes in assets and liabilities:
Notes receivable, net	(4,191)	(1,166)	(2,836)
Deferred commission expense	(8,657)	(4,995)	(4,508)
Other assets, net	53,913	34,048	11,621
Accounts payable and other liabilities	30,009	3,386	15,578
Deferred membership revenue	36,935	22,954	19,655
Rents and other customer payments received in advance and security deposits	11,844	(786)	6,635
Net cash provided by operating activities	595,052	466,537	443,520
Cash Flows From Investing Activities:
Real estate acquisitions, net	(537,896)	(239,067)	(185,411)
Business acquisitions	(41,769)	0	0
Proceeds from disposition of properties, net	(7)	0	77,746
Investment in unconsolidated joint ventures	(49,695)	0	(983)
Distributions of capital from unconsolidated joint ventures	3,154	5,648	6,352
Proceeds from insurance claims	2,048	122	8,200
Capital improvements	(290,290)	(217,082)	(257,993)
Net cash used in investing activities	(914,455)	(450,379)	(352,089)
Cash Flows From Financing Activities:
Proceeds from stock options and employee stock purchase plan	2,224	2,027	2,482
Gross proceeds from the issuance of common stock	140,254	0	59,319
Distributions:
Common Stockholders	(261,748)	(242,948)	(216,098)
Common OP Unitholders	(13,953)	(13,983)	(13,104)
Preferred Stockholders	(16)	(16)	(16)
Share based award tax withholding payments	(2,814)	(3,962)	(53)
Principal payments and mortgage debt repayment	(128,738)	(468,278)	(121,028)
Mortgage notes payable financing proceeds	270,016	662,309	0
Term loan proceeds	600,000	0	0
Term loan repayment	(300,000)	0	0
Line of Credit repayment	(432,500)	(390,500)	(155,500)
Line of Credit proceeds	559,500	452,500	315,500
Debt issuance and defeasance costs	(11,233)	(17,434)	(1,700)
Other	(2,251)	(673)	(1,347)
Net cash provided by (used in) financing activities	418,741	(20,958)	(131,545)
Net increase (decrease) in cash and restricted cash	99,338	(4,800)	(40,114)
Cash and restricted cash, beginning of year	24,060	28,860	68,974
Cash and restricted cash, end of year	123,398	24,060	28,860
Supplemental information:
Cash paid for interest	104,137	100,686	102,027
Net investment in real estate – reclassification of rental homes	81,062	38,845	28,260
Other assets, net – reclassification of rental homes	(81,062)	(38,845)	(28,260)
Real estate acquisitions:
Investment in real estate	(631,541)	(248,100)	(249,197)
Investment in unconsolidated joint ventures	0	0	35,789
Other assets, net	(4,443)	(153)	(1,646)
Debt assumed	39,986	6,873	19,212
Accrued Expenses and accounts payables	9,833	174	7,593
Rents and other customer payments received in advance and security deposits	14,265	2,139	2,838
OP Units issued	34,004	0	0
Real estate acquisitions, net	(537,896)	(239,067)	(185,411)
Business acquisitions:
Intangibles	(33,250)	0	0
Goodwill	(9,586)	0	0
Other assets, net	(933)	0	0
Accrued Expenses and accounts payables	2,000	0	0
Acquisition of business, net	(41,769)	0	0
Real estate dispositions:
Investment in real estate	52	0	35,572
Notes receivable, net	0	0	295
Other assets, net	0	0	97
Mortgage notes payable, net	0	0	(11,175)
Other liabilities	0	0	450
(Loss)/Gain on sale of real estate, net	(59)	0	52,507
Real estate dispositions, net	$ (7)	$ 0	$ 77,746