OTHER REAL ESTATE RELATED AND OTHER INVESTMENTS - Schedule of Other Real Estate Related Investments, at Fair Value (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) facility	Aug. 01, 2024 USD ($)	Dec. 31, 2023 USD ($)
Other loans receivable
Real Estate Properties [Line Items]
Principal amount	$ 695,037
Fair Value	686,449		$ 178,568
Other Investments
Real Estate Properties [Line Items]
Principal amount	53,782
Fair Value	$ 54,281		1,801
SNF
Real Estate Properties [Line Items]
Principal amount		$ 260,000
Mortgage Secured and Mezzanine Loans Receivable
Real Estate Properties [Line Items]
Basis spread on variable rate (percent)	4.84%
Mortgage secured loans receivable
Real Estate Properties [Line Items]
Number of facilities | facility	3
Mortgage secured loans receivable | Other loans receivable
Real Estate Properties [Line Items]
Principal amount	$ 617,872
Fair Value	$ 611,627		156,769
Weighted Average Contractual Interest Rate	8.80%
Mortgage secured loans receivable | SNF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	59
Mortgage secured loans receivable | Campus | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	4
Mortgage secured loans receivable | ALF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	19
Mortgage secured loans receivable | ILF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	2
Mezzanine loans receivable
Real Estate Properties [Line Items]
Number of facilities | facility	2
Mezzanine loans receivable | Other loans receivable
Real Estate Properties [Line Items]
Principal amount	$ 77,165
Fair Value	$ 74,822		21,799
Weighted Average Contractual Interest Rate	12.80%
Mezzanine loans receivable | SNF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	40
Mezzanine loans receivable | Campus | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	3
Mezzanine loans receivable | ALF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	2
Mezzanine loans receivable | ILF | Other loans receivable
Real Estate Properties [Line Items]
Facility Count and Type | facility	0
Preferred equity | Other Investments
Real Estate Properties [Line Items]
Principal amount	$ 53,782
Fair Value	$ 54,281		$ 1,801
Weighted Average Contractual Interest Rate	11.10%