CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Rental income:
Triple-net leased	$ 219,170	$ 207,372	$ 645,719	$ 613,939
Medical office buildings	115,444	100,814	337,536	253,889
Total rental income	334,614	308,186	983,255	867,828
Resident fees and services	359,112	316,560	1,039,876	905,190
Medical office building and other services revenue	4,146	4,544	11,331	16,791
Income from loans and investments	14,448	9,035	45,284	25,223
Interest and other income	66	330	1,901	442
Total revenues	712,386	638,655	2,081,647	1,815,474
Expenses:
Interest	84,089	74,037	245,622	214,028
Depreciation and amortization	177,710	188,540	528,180	534,792
Property-level operating expenses:
Senior living	244,316	216,306	706,561	618,471
Medical office buildings	40,796	36,144	115,738	86,468
Total property-level operating expenses	285,112	252,450	822,299	704,939
Medical office building services costs	1,651	1,487	4,957	8,314
General, administrative and professional fees	28,659	26,867	84,760	75,488
(Gain) loss on extinguishment of debt, net	(189)	(1,194)	(909)	38,339
Merger-related expenses and deal costs	6,208	4,917	17,137	49,566
Other	4,353	1,966	13,325	5,052
Total expenses	587,593	549,070	1,715,371	1,630,518
Income before income from unconsolidated entities, income taxes, discontinued operations and noncontrolling interest	124,793	89,585	366,276	184,956
Income from unconsolidated entities	110	17,074	533	17,905
Income tax benefit	2,780	8,886	13,100	2,727
Income from continuing operations	127,683	115,545	379,909	205,588
Discontinued operations	(9,084)	(3,724)	(33,679)	70,061
Net income	118,599	111,821	346,230	275,649
Net income (loss) attributable to noncontrolling interest	303	(61)	1,161	(884)
Net income attributable to common stockholders	$ 118,296	$ 111,882	$ 345,069	$ 276,533
Basic:
Income from continuing operations attributable to common stockholders	$ 0.43	$ 0.39	$ 1.30	$ 0.71
Discontinued operations	$ (0.03)	$ (0.01)	$ (0.12)	$ 0.24
Net income attributable to common stockholders	$ 0.40	$ 0.38	$ 1.18	$ 0.95
Diluted:
Income from continuing operations attributable to common stockholders	$ 0.43	$ 0.39	$ 1.28	$ 0.70
Discontinued operations	$ (0.03)	$ (0.01)	$ (0.11)	$ 0.24
Net income attributable to common stockholders	$ 0.40	$ 0.38	$ 1.17	$ 0.94
Weighted average shares used in computing earnings per common share:
Basic	292,818	294,928	292,308	291,177
Diluted	295,190	297,407	294,788	293,622
Dividends declared per common share	$ 0.67	$ 0.62	$ 2.01	$ 1.86