SELF STORAGE PROPERTIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Real Estate [Abstract]
Land	$ 1,038,183		$ 1,038,183		$ 1,035,562
Buildings and improvements	4,772,797		4,772,797		4,746,105
Furniture and equipment	10,384		10,384		10,507
Total self storage properties	5,821,364		5,821,364		5,792,174
Less accumulated depreciation	(1,006,543)		(1,006,543)		(874,359)
Self storage properties, net	4,814,821		4,814,821		$ 4,917,815
Depreciation expense related to self storage properties	$ 45,400	$ 53,200	$ 136,200	$ 158,300