CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Rental income:
Triple-net leased	$ 213,258	$ 210,119	$ 422,585	$ 424,606
Office	186,240	144,087	372,135	288,223
Total rental income	399,498	354,206	794,720	712,829
Resident fees and services	460,243	464,437	924,431	928,413
Office building and other services revenue	3,179	5,504	6,585	12,689
Income from loans and investments	32,368	24,146	52,514	46,532
Interest and other income	202	111	683	230
Total revenues	895,490	848,404	1,778,933	1,700,693
Expenses
Interest	113,572	103,665	222,376	206,938
Depreciation and amortization	224,108	221,961	441,891	458,348
Property-level operating expenses:
Senior living	308,625	307,989	620,698	620,530
Office	57,205	43,966	114,119	87,647
Total property-level operating expenses	365,830	351,955	734,817	708,177
Office building services costs	552	1,852	1,290	5,303
General, administrative and professional fees	33,282	32,094	67,243	63,820
Loss on extinguishment of debt, net	36	2,468	345	2,782
Merger-related expenses and deal costs	6,043	7,224	8,099	8,856
Other	1,848	2,303	3,036	6,471
Total expenses	745,271	723,522	1,479,097	1,460,695
Income before unconsolidated entities, income taxes, discontinued operations, real estate dispositions and noncontrolling interests	150,219	124,882	299,836	239,998
(Loss) income from unconsolidated entities	(106)	1,418	3,044	1,220
Income tax benefit	2,159	11,549	5,304	19,970
Income from continuing operations	152,272	137,849	308,184	261,188
Discontinued operations	(23)	(148)	(76)	(637)
Gain on real estate dispositions	719	5,739	44,008	31,923
Net income	152,968	143,440	352,116	292,474
Net income attributable to noncontrolling interests	1,137	278	2,158	332
Net income attributable to common stockholders	$ 151,831	$ 143,162	$ 349,958	$ 292,142
Basic:
Income from continuing operations (in usd per share)	$ 0.43	$ 0.41	$ 0.87	$ 0.77
Net income attributable to common stockholders (in usd per share)	0.43	0.42	0.99	0.87
Diluted:
Income from continuing operations (in usd per share)	0.42	0.40	0.86	0.77
Net income attributable to common stockholders (in usd per share)	$ 0.42	$ 0.42	$ 0.98	$ 0.86
Weighted average shares used in computing earnings per common share:
Basic (in shares)	355,024	338,901	354,719	337,230
Diluted (in shares)	358,311	342,571	357,919	340,851
Dividends declared per common share (in usd per share)	$ 0.775	$ 0.73	$ 1.55	$ 1.46