CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Rental income:
Total rental income		$ 1,399,313	$ 1,448,120	$ 1,494,892
Income from loans and investments		48,160	74,981	80,505
Interest and other income		3,635	14,809	7,609
Total revenues		4,129,193	3,828,007	3,795,357
Expenses
Interest		467,557	440,089	469,541
Depreciation and amortization		1,197,798	1,197,403	1,109,763
Property-level operating expenses:
Property-level operating expenses		2,276,724	2,084,064	1,937,443
Third party capital management expenses		6,194	4,433	2,315
General, administrative and professional fees		144,874	129,758	130,158
Loss on extinguishment of debt, net		581	59,299	10,791
Transaction expenses and deal costs		51,577	47,318	29,812
Provision for Loan, Lease, and Other Losses		19,757	(9,082)	24,238
Other		58,268	37,110	707
Total expenses		4,223,330	3,990,392	3,714,768
(Loss) income before unconsolidated entities, real estate dispositions, income taxes and noncontrolling interests		(94,137)	(162,385)	80,589
Income from unconsolidated entities		28,500	4,983	1,844
Gain on real estate dispositions		7,780	218,788	262,218
Income tax benefit (expense)		16,926	(4,827)	96,534
(Loss) income from continuing operations		(40,931)	56,559	441,185
Net (loss) income		(40,931)	56,559	441,185
Net income attributable to noncontrolling interests		6,516	7,551	2,036
Net (loss) income attributable to common stockholders		$ (47,447)	$ 49,008	$ 439,149
Basic:
(Loss) income from continuing operations (USD per share)		$ (0.10)	$ 0.15	$ 1.18
Net (loss) income attributable to common stockholders (USD per share)		(0.12)	0.13	1.18
Diluted:
(Loss) income from continuing operations (USD per share)	[1]	(0.10)	0.15	1.17
Net (loss) income attributable to common stockholders (USD per share)	[1]	$ (0.12)	$ 0.13	$ 1.17
Retained Earnings (Deficit)
Property-level operating expenses:
Net (loss) income		$ (47,447)	$ 49,008	$ 439,149
Net (loss) income attributable to common stockholders		(47,447)
Triple-net leased properties
Rental income:
Total rental income		598,154	653,823	695,265
Property-level operating expenses:
Property-level operating expenses		15,301	15,335	22,160
Office operations
Rental income:
Total rental income		801,159	794,297	799,627
Property-level operating expenses:
Property-level operating expenses		257,003	257,001	256,612
Resident fees and services
Rental income:
Revenue from contracts with customers		2,651,886	2,270,001	2,197,160
Third party capital management revenues
Rental income:
Revenue from contracts with customers		26,199	20,096	15,191
SHOP
Property-level operating expenses:
Property-level operating expenses		$ 2,004,420	$ 1,811,728	$ 1,658,671

[1] Potential common shares are not included in the computation of diluted earnings per share when a loss from continuing operations exists as the effect would be an antidilutive per share amount.