Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Rental income	$ 362,880	$ 421,152	$ 1,085,621	$ 1,259,442
Resident fees and services	702,380	630,017	2,049,757	1,847,386
Interest income	20,187	25,080	61,836	74,275
Other income	6,036	2,884	15,169	21,735
Total revenues	1,091,483	1,079,133	3,212,383	3,202,838
Expenses:
Interest expense	122,578	129,699	357,405	394,985
Property operating expenses	523,997	473,680	1,536,021	1,382,148
Depreciation and amortization	230,138	218,061	683,262	673,326
General and administrative	29,913	36,828	93,643	122,434
Transaction costs	0	19,842	0	33,207
Loss (gain) on derivatives, net	324	(2,516)	2,284	(2,516)
Loss (gain) on extinguishment of debt, net	0	0	36,870	9
Impairment of Asset	0	9,705	24,662	24,019
Other expenses	99,595	0	117,608	3,161
Total expenses	1,006,545	885,299	2,851,755	2,630,773
Income (loss) from continuing operations before income taxes and income from unconsolidated entities, total	84,938	193,834	360,628	572,065
Income tax expense	(669)	305	5,535	2,543
(Loss) income from unconsolidated entities	3,408	(1,749)	(23,676)	(7,528)
Income from continuing operations	87,677	192,390	342,487	567,080
Gain (loss) on real estate dispositions, net	1,622	162,351	287,869	163,881
Net income	89,299	354,741	630,356	730,961
Less: Preferred stock dividends	11,676	16,352	37,734	49,055
Preferred stock redemption charge	0	0	9,769	0
Less: Net income (loss) attributable to noncontrolling interests	3,580	3,479	7,735	2,553
Net income (loss) attributable to common stockholders	$ 74,043	$ 334,910	$ 575,118	$ 679,353
Average number of common shares outstanding:
Basic	369,089	358,932	366,096	356,911
Diluted	370,740	361,237	367,894	358,752
Basic:
Income (loss) from continuing operations attributable to common stockholders, including real estate dispositions	$ 0.2	$ 0.93	$ 1.57	$ 1.9
Net income (loss) attributable to common stockholders, total	0.2	0.93	1.57	1.9
Diluted:
Income (loss) from continuing operations attributable to common stockholders, including real estate dispositions	0.2	0.93	1.56	1.89
Net income (loss) attributable to common stockholders, total	0.2	0.93	1.56	1.89
Dividends declared and paid per common share	$ 0.87	$ 0.86	$ 2.61	$ 2.58