CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Rental income:
Triple-net leased	$ 260,562	$ 242,726	$ 526,768	$ 480,572
Medical office buildings	140,403	114,890	277,393	230,113
Total rental income	400,965	357,616	804,161	710,685
Resident fees and services	454,645	374,473	901,559	745,534
Medical office building and other services revenue	9,408	4,367	19,951	10,667
Income from loans and investments	26,068	14,625	48,967	25,392
Interest and other income	236	173	708	446
Total revenues	891,322	751,254	1,775,346	1,492,724
Expenses:
Interest	107,591	91,501	214,181	179,342
Depreciation and amortization	249,195	190,818	496,636	384,412
Property-level operating expenses:
Senior living	299,252	249,424	597,614	497,719
Medical office buildings	43,321	39,335	85,670	78,680
Total property-level operating expenses	342,573	288,759	683,284	576,399
Medical office building services costs	5,764	1,626	12,682	4,997
General, administrative and professional fees	33,962	31,306	68,292	64,172
(Gain) loss on extinguishment of debt, net	(455)	2,924	(434)	2,665
Merger-related expenses and deal costs	14,585	9,599	49,757	20,359
Other	5,091	4,863	10,387	10,092
Total expenses	758,306	621,396	1,534,785	1,242,438
Income before income (loss) from unconsolidated entities, income taxes, discontinued operations, real estate dispositions and noncontrolling interest	133,016	129,858	240,561	250,286
Income (loss) from unconsolidated entities	9	348	(242)	596
Income tax benefit (expense)	9,789	(3,274)	17,039	(6,707)
Income from continuing operations	142,814	126,932	257,358	244,175
Discontinued operations	67	(255)	(356)	2,776
Gain on real estate dispositions	7,469	11,889	14,155	12,889
Net income	150,350	138,566	271,157	259,840
Net income attributable to noncontrolling interest	529	168	894	395
Net income attributable to common stockholders	$ 149,821	$ 138,398	$ 270,263	$ 259,445
Basic:
Income from continuing operations attributable to common stockholders, including real estate dispositions (in usd per share)	$ 0.45	$ 0.47	$ 0.82	$ 0.87
Discontinued operations (in usd per share)	0.00	0.00	0.00	0.01
Net income attributable to common stockholders (in usd per share)	0.45	0.47	0.82	0.88
Diluted:
Income from continuing operations attributable to common stockholders, including real estate dispositions (in usd per share)	0.45	0.47	0.82	0.87
Discontinued operations (in usd per share)	0.00	0.00	0.00	0.01
Net income attributable to common stockholders (in usd per share)	$ 0.45	$ 0.47	$ 0.82	$ 0.88
Weighted average shares used in computing earnings per common share:
Basic (in shares)	330,715	293,988	327,890	293,932
Diluted (in shares)	334,026	296,504	331,424	296,369
Dividends declared per common share (in usd per share)	$ 0.79	$ 0.725	$ 1.58	$ 1.45