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, 2023 USD ($) facility	Jun. 30, 2022 USD ($) facility	Jun. 30, 2023 USD ($) facility	Jun. 30, 2022 USD ($) facility	Dec. 31, 2022 facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales proceeds			$ 14,464	$ 959
Net gain on sale	$ 2,028	$ 0	$ 1,958	$ 186
Number of facilities | facility	1		1
Principal amount	$ 175,143		$ 175,143
Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities | facility	3	0	4	1
Net sales proceeds	$ 13,234	$ 0	$ 16,464	$ 959
Net carrying value	11,206	0	14,506	773
Net gain on sale	$ 2,028	$ 0	$ 1,958	$ 186
Disposed of by sale | Assisted Living Facilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities | facility	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	15		15		5
Disposal Group, Held-for-sale, Not Discontinued Operations | Assisted Living Facilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Principal amount	$ 2,000		$ 2,000