Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows From Operating Activities:
Consolidated net income	$ 237,796	$ 173,006
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Gain on sale of real estate, net	(52,507)	0
Early debt retirement	1,491	0
Depreciation and amortization	114,160	102,798
Amortization of loan costs	2,623	2,675
Debt premium amortization	(359)	(1,061)
Equity in income of unconsolidated joint ventures	(8,277)	(3,596)
Distributions of income from unconsolidated joint ventures	5,010	2,869
Proceeds from insurance claims, net	(1,742)	(3,353)
Compensation expense related to restricted stock and stock options	7,779	7,287
Revenue recognized from right-to-use contract upfront payments (membership upgrade sales)	(6,394)	(5,780)
Commission expense recognized related to right-to-use contracts	2,773	2,715
Long-term incentive plan compensation	(3,226)	819
Changes in assets and liabilities:
Notes receivable, net	(2,441)	(641)
Deferred commission expense	(3,418)	(3,424)
Other assets, net	1,070	16,666
Accounts payable and other liabilities	35,771	20,055
Rents and other customer payments received in advance and security deposits	3,290	665
Net cash provided by operating activities	349,348	324,762
Cash Flows From Investing Activities:
Real estate acquisitions, net	(176,296)	(131,804)
Proceeds from disposition of properties, net	77,746	0
Investment in unconsolidated joint ventures	(983)	(3,914)
Distributions of capital from unconsolidated joint ventures	5,734	168
Proceeds from insurance claims	6,689	6,615
Repayments of notes receivable	0	13,822
Capital improvements	(189,788)	(128,436)
Net cash used in investing activities	(276,898)	(243,549)
Cash Flows From Financing Activities:
Proceeds from stock options and employee stock purchase plan	1,934	1,610
Gross proceeds from the issuance of common stock	59,319	78,755
Distributions:
Common Stockholders	(160,336)	(140,850)
Common OP Unitholders	(9,891)	(9,250)
Preferred Stockholders	(8)	(8)
Principal payments and mortgage debt repayment	(107,367)	(36,308)
New mortgage notes payable financing proceeds	0	64,014
Line of Credit payoff	(120,000)	(174,000)
Line of Credit proceeds	240,000	224,000
Debt issuance and defeasance costs	(1,700)	(1,878)
Other	(989)	(1,433)
Net cash (used in) provided by financing activities	(99,038)	4,652
Net (decrease) increase in cash and restricted cash	(26,588)	85,865
Cash and restricted cash, beginning of period	68,974	35,631
Cash and restricted cash, end of period	42,386	121,496
Supplemental Information:
Cash paid for interest	76,508	76,881
Net investment in real estate – reclassification of rental homes	19,241	22,973
Other assets, net – reclassification of rental homes	(19,241)	(22,973)
Real estate acquisitions:
Investment in real estate	(240,324)	(150,926)
Investment in unconsolidated joint ventures	35,789	0
Other assets, net	(1,415)	(9)
Debt assumed	19,212	9,200
Debt financed	0	8,786
Other liabilities	10,442	1,145
Real estate acquisitions, net	(176,296)	(131,804)
Real estate dispositions:
Investment in real estate	35,572	0
Notes receivable, net	295	0
Other assets, net	97	0
Mortgage notes payable, net	(11,175)	0
Other liabilities	450	0
Gain on sale of real estate, net	52,507	0
Proceeds from disposition of properties, net	77,746	0
Deferred revenue – upfront payments from right-to-use contracts (membership upgrade sales)
Changes in assets and liabilities:
Deferred revenue	14,609	11,969
Deferred revenue – right-to-use annual payments (membership subscriptions)
Changes in assets and liabilities:
Deferred revenue	$ 1,340	$ 1,093