IMPAIRMENT OF REAL ESTATE INVESTMENTS, ASSETS HELD FOR SALE, NET AND ASSET SALES - Schedule of Company's Dispositions (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) facility	Jun. 30, 2023 USD ($) facility	Jun. 30, 2024 USD ($) facility	Jun. 30, 2023 USD ($) facility	Jan. 31, 2024 USD ($) facility	Dec. 31, 2023 facility	Dec. 31, 2022 facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales proceeds			$ 140	$ 14,464
Net gain on sale	$ 21	$ 2,028	$ 32	$ 1,958
Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities | facility	1	3	3	4
Net sales proceeds	$ 94	$ 13,234	$ 1,140	$ 16,464
Net carrying value	73	11,206	1,108	14,506
Net gain on sale	$ 21	$ 2,028	$ 32	$ 1,958
Disposed of by Sale | ALF
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities | facility		1		1	1
Disposal Group, Held-for-sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities | facility	20	15	20	15		14	5
Disposal Group, Held-for-sale, Not Discontinued Operations | ALF
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Principal amount		$ 2,000		$ 2,000	$ 1,000