CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Rental income :
Triple-net leased	$ 207,898	$ 116,150	$ 415,026	$ 230,771
Medical office buildings	89,674	23,758	154,183	47,994
Total rental income	297,572	139,908	569,209	278,765
Resident fees and services	304,020	201,307	589,815	315,809
Medical office building and other services revenue	6,639	9,822	12,247	16,779
Income from loans and investments	8,152	8,391	16,188	14,476
Interest and other income	65	78	112	156
Total revenues	616,448	359,506	1,187,571	625,985
Expenses:
Interest	74,428	52,043	144,056	92,830
Depreciation and amortization	189,349	79,509	351,605	130,070
Property-level operating expenses:
Senior living	207,548	135,894	403,214	214,005
Medical office buildings	29,846	8,278	50,744	16,954
Total property-level operating expenses	237,394	144,172	453,958	230,959
Medical office building services costs	3,839	7,954	6,827	13,490
General, administrative and professional fees	26,710	15,554	48,907	30,386
Loss on extinguishment of debt	9,989	6	39,533	16,526
Merger-related expenses and deal costs	36,668	55,807	44,649	62,256
Other	1,510	(8,056)	3,086	(8,055)
Total expenses	579,887	346,989	1,092,621	568,462
Income before income/loss from unconsolidated entities, income taxes, discontinued operations and noncontrolling interest	36,561	12,517	94,950	57,523
Income (loss) from unconsolidated entities	514	(83)	831	(253)
Income tax benefit (expense)	5,179	6,110	(6,159)	9,307
Income from continuing operations	42,254	18,544	89,622	66,577
Discontinued operations	31,482	1,190	74,206	2,203
Net income	73,736	19,734	163,828	68,780
Net (loss) income attributable to noncontrolling interest	(289)	58	(823)	120
Net income attributable to common stockholders	$ 74,025	$ 19,676	$ 164,651	$ 68,660
Basic:
Income from continuing operations attributable to common stockholders (in dollars per share)	$ 0.15	$ 0.10	$ 0.31	$ 0.40
Discontinued operations (in dollars per share)	$ 0.11	$ 0.01	$ 0.26	$ 0.01
Net income attributable to common stockholders (in dollars per share)	$ 0.26	$ 0.11	$ 0.57	$ 0.41
Diluted:
Income from continuing operations attributable to common stockholders (in dollars per share)	$ 0.14	$ 0.10	$ 0.31	$ 0.39
Discontinued operations (in dollars per share)	$ 0.11	$ 0.01	$ 0.25	$ 0.01
Net income attributable to common stockholders (in dollars per share)	$ 0.25	$ 0.11	$ 0.56	$ 0.40
Weighted average shares used in computing earnings per common share:
Basic (in shares)	290,170	176,262	289,281	168,369
Diluted (in shares)	292,592	177,945	291,711	170,013
Dividends declared per common share (in dollars per share)	$ 0.62	$ 0.7014	$ 1.24	$ 1.2764