CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Rental and other income	$ 549,507	$ 514,891	$ 1,600,047	$ 1,522,705
Management, development and other fees	993	1,320	3,290	4,310
Total revenue	550,500	516,211	1,603,337	1,527,015
Expenses:
Operating expenses, excluding property taxes	129,590	124,789	379,319	360,318
Property taxes	57,698	52,338	164,195	153,512
Interest expense, net	47,741	47,871	147,138	137,862
Loss on extinguishment of debt, net	0	0	24,162	2,461
Depreciation expense	144,990	131,729	427,050	391,414
General and administrative expense	11,655	11,928	38,808	35,343
Expensed acquisition, development and other pursuit costs, net of recoveries	789	3,804	2,087	8,702
Casualty and impairment loss (gain), net	0	0	(11,688)	3,935
Total expenses	392,463	372,459	1,194,447	1,085,677
Income before equity in income of unconsolidated real estate entities, gain on sale of communities and other real estate, and income taxes	158,037	143,752	408,890	441,338
Equity in income (loss) of unconsolidated real estate entities	52,568	(342)	70,386	54,779
Gain on sale of communities	27,738	202,163	159,754	284,582
(Loss) gain on sale of other real estate	(120)	10,778	246	10,921
Income before income taxes	238,223	356,351	639,276	791,620
Income tax expense	24	22	102	95
Net income	238,199	356,329	639,174	791,525
Net loss attributable to noncontrolling interests	49	63	174	242
Net income attributable to common stockholders	238,248	356,392	639,348	791,767
Other comprehensive income (loss):
Income (loss) on cash flow hedges	359	719	(15,654)	(73,826)
Cash flow hedge losses reclassified to earnings	1,767	1,748	5,301	4,682
Comprehensive income	$ 240,374	$ 358,859	$ 628,995	$ 722,623
Earnings per common share - basic:
Net income attributable to common stockholders (in dollars per share)	$ 1.73	$ 2.60	$ 4.64	$ 5.77
Earnings per common share - diluted:
Net income attributable to common stockholders (in dollars per share)	1.72	2.59	4.63	5.76
Dividends per common share (in dollars per share)	$ 1.42	$ 1.35	$ 4.26	$ 4.05