CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Rental income:
Total rental income		$ 1,486,401	$ 1,399,313	$ 1,448,120
Income from loans and investments		22,952	48,160	74,981
Interest and other income		11,414	3,635	14,809
Total revenues		4,497,827	4,129,193	3,828,007
Expenses
Interest		574,112	467,557	440,089
Depreciation and amortization		1,392,461	1,197,798	1,197,403
Property-level operating expenses:
Property-level operating expenses		2,555,145	2,276,724	2,084,064
Third party capital management expenses		6,101	6,194	4,433
General, administrative and professional fees		148,876	144,874	129,758
(Gain) loss on extinguishment of debt, net		(6,104)	581	59,299
Transaction, transition and restructuring costs		15,215	30,884	47,318
Provision for Loan, Lease, and Other Losses		(20,270)	19,757	(9,082)
Other (income) expense		(23,001)	58,268	37,110
Total expenses		4,613,408	4,223,330	3,990,392
Loss before unconsolidated entities, real estate dispositions, income taxes and noncontrolling interests		(115,581)	(94,137)	(162,385)
Income from unconsolidated entities		13,626	28,500	4,983
Gain on real estate dispositions		62,119	7,780	218,788
Income tax benefit (expense)		9,539	16,926	(4,827)
(Loss) income from continuing operations		(30,297)	(40,931)	56,559
Net (loss) income		(30,297)	(40,931)	56,559
Net income attributable to noncontrolling interests		10,676	6,516	7,551
Net (loss) income attributable to common stockholders		$ (40,973)	$ (47,447)	$ 49,008
Basic:
(Loss) income from continuing operations (USD per share)		$ (0.08)	$ (0.10)	$ 0.15
Net (loss) income attributable to common stockholders (USD per share)		(0.10)	(0.12)	0.13
Diluted:
(Loss) income from continuing operations (USD per share)	[1]	(0.08)	(0.10)	0.15
Net (loss) income attributable to common stockholders (USD per share)	[1]	$ (0.10)	$ (0.12)	$ 0.13
Gain on foreclosure of real estate		$ (29,127)	$ 0	$ 0
Shareholder relations matters		0	20,693	0
Retained Earnings (Deficit)
Property-level operating expenses:
Net (loss) income		(40,973)	(47,447)	49,008
Net (loss) income attributable to common stockholders		(40,973)
Triple-net leased properties
Rental income:
Total rental income		619,208	598,154	653,823
Property-level operating expenses:
Property-level operating expenses		14,557	15,301	15,335
Resident fees and services
Rental income:
Revenue from contracts with customers		2,959,219	2,651,886	2,270,001
Third party capital management revenues
Rental income:
Revenue from contracts with customers		17,841	26,199	20,096
SHOP
Property-level operating expenses:
Property-level operating expenses		2,247,812	2,004,420	1,811,728
Outpatient Medical And Research Portfolio
Rental income:
Total rental income		867,193	801,159	794,297
Property-level operating expenses:
Property-level operating expenses		$ 292,776	$ 257,003	$ 257,001

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