Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Rental income	$ 238,869	$ 225,116	$ 696,178	$ 660,689
Other income	12,268	11,263	33,007	31,898
Interest income	1,801	1,831	5,399	5,385
Income from other investments, net	1,428	7,029	3,093	8,894
Total revenues	284,986	271,160	819,552	778,616
Expenses:
Property operating and maintenance	99,566	90,765	268,465	253,581
Real estate taxes	15,981	15,166	49,490	45,596
Sales and marketing, gross	5,054	4,063	13,308	11,686
Membership sales commissions, deferred, net	(630)	(313)	(1,327)	(893)
Depreciation and amortization	38,581	37,032	115,937	112,785
Home selling expenses	1,241	1,033	3,535	3,218
General and administrative	9,692	8,710	31,156	27,844
Other expenses	658	1,460	1,885	2,427
Early debt retirement	9,732	0	10,786	1,491
Interest and related amortization	25,218	25,547	77,540	77,964
Total expenses	232,486	206,502	648,746	601,604
Gain on sale of real estate, net	0	0	0	52,507
Income before equity in income of unconsolidated joint ventures	52,500	64,658	170,806	229,519
Equity in income of unconsolidated joint ventures	968	3,518	2,239	8,277
Consolidated net income	53,468	68,176	173,045	237,796
Income allocated to non-controlling interests – Common OP Units	(2,908)	(3,715)	(9,415)	(13,617)
Redeemable perpetual preferred stock dividends	0	0	(8)	(8)
Net income available for Common Stockholders	50,560	64,461	163,622	224,171
Other comprehensive income (loss):
Adjustment for fair market value of swap	1,161	(257)	380	(2,798)
Consolidated comprehensive income	54,629	67,919	173,425	234,998
Comprehensive income allocated to non-controlling interests – Common OP Units	(2,971)	(3,701)	(9,436)	(13,460)
Comprehensive income attributable to Common Stockholders	$ 51,658	$ 64,218	$ 163,981	$ 221,530
Earnings per common share – basic (usd per share)	$ 0.28	$ 0.35	$ 0.90	$ 1.24
Earnings per common share – fully diluted (usd per share)	$ 0.28	$ 0.35	$ 0.90	$ 1.24
Weighted average common shares outstanding – basic (in shares)	181,869	181,649	181,811	180,515
Weighted average number of shares outstanding, diluted (in shares)	192,537	192,400	192,548	191,840
Annual membership subscriptions
Revenues:
Contract revenue	$ 13,442	$ 13,150	$ 39,476	$ 38,052
Membership upgrade sales current period, gross
Revenues:
Contract revenue	6,631	5,730	16,522	14,609
Membership upgrade sales upfront payments, deferred, net
Revenues:
Contract revenue	(4,171)	(3,530)	(9,379)	(8,213)
Gross revenues from home sales
Revenues:
Contract revenue	13,070	8,438	33,245	22,738
Expenses:
Cost of services	12,866	8,434	33,627	23,230
Brokered resale and ancillary services revenues, net
Revenues:
Contract revenue	1,648	2,133	2,011	4,564
Property management
Expenses:
Cost of services	$ 14,527	$ 14,605	$ 44,344	$ 42,675