CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Rental income:
Triple-net leased	$ 266,206	$ 237,846
Medical office buildings	136,990	115,223
Total rental income	403,196	353,069
Resident fees and services	446,914	371,061
Medical office building and other services revenue	10,543	6,300
Income from loans and investments	22,899	10,767
Interest and other income	472	273
Total revenues	884,024	741,470
Expenses:
Interest	106,590	87,841
Depreciation and amortization	247,441	193,594
Property-level operating expenses:
Senior living	298,362	248,295
Medical office buildings	42,349	39,345
Total property-level operating expenses	340,711	287,640
Medical office building services costs	6,918	3,371
General, administrative and professional fees	34,330	32,866
Loss (gain) on extinguishment of debt, net	21	(259)
Merger-related expenses and deal costs	35,172	10,760
Other	5,296	5,229
Total expenses	776,479	621,042
Income before (loss) income from unconsolidated entities, income taxes, discontinued operations, real estate dispositions and noncontrolling interest	107,545	120,428
(Loss) income from unconsolidated entities	(251)	248
Income tax benefit (expense)	7,250	(3,433)
Income from continuing operations	114,544	117,243
Discontinued operations	(423)	3,031
Gain on real estate dispositions	6,686	1,000
Net income	120,807	121,274
Net income attributable to noncontrolling interest	365	227
Net income attributable to common stockholders	$ 120,442	$ 121,047
Basic:
Income from continuing operations attributable to common stockholders, including real estate dispositions	$ 0.37	$ 0.40
Discontinued operations	$ 0.00	$ 0.01
Net income attributable to common stockholders	$ 0.37	$ 0.41
Diluted:
Income from continuing operations attributable to common stockholders, including real estate dispositions	$ 0.37	$ 0.40
Discontinued operations	$ 0.00	$ 0.01
Net income attributable to common stockholders	$ 0.37	$ 0.41
Weighted average shares used in computing earnings per common share:
Basic	325,454	293,875
Diluted	329,203	296,245
Dividends declared per common share	$ 0.79	$ 0.725