Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Rental income	$ 421,152	$ 409,290	$ 1,259,442	$ 1,185,502
Resident fees and services	630,017	545,255	1,847,386	1,573,318
Interest income	25,080	22,380	74,275	59,950
Other income	2,884	2,072	21,735	11,572
Total revenues	1,079,133	978,997	3,202,838	2,830,342
Expenses:
Interest expense	129,699	121,130	394,985	361,071
Property operating expenses	473,680	408,703	1,382,148	1,183,519
Depreciation and amortization	218,061	205,799	673,326	603,431
General and administrative	36,828	36,950	122,434	110,562
Transaction costs	19,842	9,333	33,207	70,379
Loss (gain) on derivatives, net	(2,516)	0	(2,516)	(58,427)
Loss (gain) on extinguishment of debt, net	0	584	9	34,872
Impairment of Asset	9,705	0	24,019	2,220
Other expenses	0	0	3,161	10,583
Total expenses	885,299	782,499	2,630,773	2,318,210
Income (loss) from continuing operations before income taxes and income from unconsolidated entities, total	193,834	196,498	572,065	512,132
Income tax (expense) benefit	305	3,344	2,543	(3,769)
(Loss) income from unconsolidated entities	(1,749)	(2,631)	(7,528)	(18,231)
Income from continuing operations	192,390	197,211	567,080	490,132
Gain (loss) on real estate dispositions, net	162,351	2,046	163,881	249,002
Net income	354,741	199,257	730,961	739,134
Less: Preferred stock dividends	16,352	16,352	49,055	49,055
Less: Net income (loss) attributable to noncontrolling interests	3,479	862	2,553	4,666
Net income (loss) attributable to common stockholders	$ 334,910	$ 182,043	$ 679,353	$ 685,413
Average number of common shares outstanding:
Basic	358,932	351,765	356,911	346,425
Diluted	361,237	353,107	358,752	347,547
Basic:
Income (loss) from continuing operations attributable to common stockholders, including real estate dispositions	$ 0.93	$ 0.52	$ 1.9	$ 1.98
Discontinued operations, net	0	0	0	0
Net income (loss) attributable to common stockholders, total	0.93	0.52	1.9	1.98
Diluted:
Income (loss) from continuing operations attributable to common stockholders, including real estate dispositions	0.93	0.52	1.89	1.97
Discontinued operations, net	0	0	0	0
Net income (loss) attributable to common stockholders, total	0.93	0.52	1.89	1.97
Dividends declared and paid per common share	$ 0.86	$ 0.825	$ 2.58	$ 2.475