CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Rental income:
Triple-net leased	$ 875,877	$ 818,000	$ 627,723
Medical office buildings	450,107	360,849	166,079
Total rental income	1,325,984	1,178,849	793,802
Resident fees and services	1,406,005	1,227,124	865,800
Medical office building and other services revenue	17,809	20,741	36,471
Income from loans and investments	58,208	39,913	34,415
Interest and other income	2,047	1,106	1,216
Total revenues	2,810,053	2,467,733	1,731,704
Expenses:
Interest	334,484	288,276	223,804
Depreciation and amortization	721,959	714,505	444,193
Property-level operating expenses:
Senior living	956,684	841,022	588,095
Medical office buildings	152,948	125,400	56,987
Total property-level operating expenses	1,109,632	966,422	645,082
Medical office building services costs	8,315	9,883	27,082
General, administrative and professional fees	115,106	98,510	74,537
Loss on extinguishment of debt, net	1,201	37,640	27,604
Litigation proceeds, net	0	0	(202,259)
Merger-related expenses and deal costs	21,634	63,183	153,923
Other	18,732	6,940	7,270
Total expenses	2,331,063	2,185,359	1,401,236
Income before (loss) income from unconsolidated entities, income taxes, discontinued operations and noncontrolling interest	478,990	282,374	330,468
(Loss) income from unconsolidated entities	(508)	18,154	(52)
Income tax benefit	11,828	6,282	30,660
Income from continuing operations	490,310	306,810	361,076
Discontinued operations	(35,421)	54,965	2,185
Net income	454,889	361,775	363,261
Net income (loss) attributable to noncontrolling interest	1,380	(1,025)	(1,232)
Net income attributable to common stockholders	$ 453,509	$ 362,800	$ 364,493
Basic:
Income from continuing operations attributable to common stockholders (in dollars per share)	$ 1.67	$ 1.05	$ 1.59
Discontinued operations (in dollars per share)	$ (0.12)	$ 0.19	$ 0.01
Net income attributable to common stockholders (in dollars per share)	$ 1.55	$ 1.24	$ 1.60
Diluted:
Income from continuing operations attributable to common stockholders (in dollars per share)	$ 1.66	$ 1.04	$ 1.57
Discontinued operations (in dollars per share)	$ (0.12)	$ 0.19	$ 0.01
Net income attributable to common stockholders (in dollars per share)	$ 1.54	$ 1.23	$ 1.58
Weighted average shares used in computing earnings per common share:
Basic (in shares)	292,654	292,064	228,453
Diluted (in shares)	295,110	294,488	230,790