Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Rental income	$ 217,963	$ 212,007	$ 457,309	$ 435,573
Other income	9,680	10,265	20,739	20,635
Interest income	1,791	1,803	3,598	3,554
Income from other investments, net	1,022	879	1,665	1,865
Total revenues	254,090	248,366	534,566	507,456
Expenses:
Property operating and maintenance	85,265	84,868	168,899	162,816
Real estate taxes	16,668	15,107	33,509	30,430
Sales and marketing, gross	4,276	4,214	8,254	7,623
Membership sales commissions, deferred, net	(481)	(389)	(697)	(580)
Depreciation and amortization	38,332	37,776	77,356	75,753
Home selling expenses	1,081	1,102	2,294	2,185
General and administrative	10,609	9,225	21,464	19,134
Other expenses	639	540	1,227	967
Early debt retirement	0	1,491	1,054	1,491
Interest and related amortization	26,249	26,024	52,322	52,417
Total expenses	206,301	202,507	416,260	395,102
Gain on sale of real estate, net	0	0	0	52,507
Income before equity in income of unconsolidated joint ventures	47,789	45,859	118,306	164,861
Equity in income of unconsolidated joint ventures	1,064	3,226	1,271	4,759
Consolidated net income	48,853	49,085	119,577	169,620
Income allocated to non-controlling interests – Common OP Units	(2,658)	(2,676)	(6,507)	(9,902)
Redeemable perpetual preferred stock dividends	(8)	(8)	(8)	(8)
Net income available for Common Stockholders	46,187	46,401	113,062	159,710
Other comprehensive income (loss):
Adjustment for fair market value of swap	552	(1,610)	(781)	(2,541)
Consolidated comprehensive income	49,405	47,475	118,796	167,079
Comprehensive income allocated to non-controlling interests – Common OP Units	(2,689)	(2,589)	(6,465)	(9,759)
Comprehensive income attributable to Common Stockholders	$ 46,708	$ 44,878	$ 112,323	$ 157,312
Earnings per common share – basic (usd per share)	$ 0.25	$ 0.26	$ 0.62	$ 0.89
Earnings per common share – fully diluted (usd per share)	$ 0.25	$ 0.26	$ 0.62	$ 0.89
Weighted average common shares outstanding – basic (in shares)	181,833	180,312	181,781	179,938
Weighted average number of shares outstanding, diluted (in shares)	192,542	191,860	192,538	191,546
Annual membership subscriptions
Revenues:
Contract revenue	$ 12,961	$ 12,586	$ 26,034	$ 24,902
Membership upgrade sales current period, gross
Revenues:
Contract revenue	5,048	5,041	9,891	8,879
Membership upgrade sales upfront payments, deferred, net
Revenues:
Contract revenue	(2,666)	(2,912)	(5,208)	(4,683)
Gross revenues from home sales
Revenues:
Contract revenue	8,866	7,825	20,175	14,300
Expenses:
Cost of services	8,850	8,164	20,761	14,796
Brokered resale and ancillary services revenues, net
Revenues:
Contract revenue	(575)	872	363	2,431
Property management
Expenses:
Cost of services	$ 14,813	$ 14,385	$ 29,817	$ 28,070