IMPAIRMENT OF REAL ESTATE INVESTMENTS, ASSETS HELD FOR SALE, NET AND ASSET SALES - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) facility	Mar. 31, 2022 USD ($) facility	Dec. 31, 2022 facility
Minimum | Level 3 | Valuation, Market Approach
Real Estate [Line Items]
Prices per unit input	$ 20
Maximum | Level 3 | Valuation, Market Approach
Real Estate [Line Items]
Prices per unit input	85
Weighted average | Level 3 | Valuation, Market Approach
Real Estate [Line Items]
Prices per unit input	32
Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate [Line Items]
Impairment expense to reduce carrying value to fair value less costs to sell	$ 1,900	$ 59,700
Number of facilities | facility	6	20	5
Disposal Group, Held-for-sale, Not Discontinued Operations | Minimum
Real Estate [Line Items]
Number of facilities | facility	4
Disposal Group, Held-for-sale, Not Discontinued Operations | Maximum
Real Estate [Line Items]
Number of facilities | facility	6