IMPAIRMENT OF REAL ESTATE INVESTMENTS, ASSETS HELD FOR SALE AND ASSET SALES - Schedule of Company's Assets Held for Sale Activity (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) facility	Sep. 30, 2024 USD ($) facility	Sep. 30, 2023 USD ($) facility
Increase Decrease in Assets Held for Sale [Roll Forward]
Net carrying value at beginning		$ 2,005,077
Net carrying value at ending	$ 2,223,922	2,223,922
Number of Facilities, Assets Held For Investment | facility	(2)
Disposal Group, Held-for-sale, Not Discontinued Operations
Increase Decrease in Assets Held for Sale [Roll Forward]
Net carrying value at beginning		15,011	$ 12,291
Net carrying value, additions to assets held for sale		54,021	47,064
Net carrying value, assets sold		(11,106)	(14,506)
Net carrying value, impairment of real estate held for sale		(36,872)	(23,508)
Net carrying value, assets reclassified to held for investment		(5,008)
Net carrying value at ending	$ 16,046	$ 16,046	$ 21,341
Number of facilities at beginning | facility		14	5
Number of facilities, additions to assets held for sale | facility		10	14
Number of facilities, assets sold | facility		(14)	(4)
Number of facilities, impairment of real estate held for sale | facility		0	0
Number of Facilities, Assets Held For Investment | facility		(2)
Number of facilities at ending | facility	8	8	15