SELF STORAGE PROPERTIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Real Estate [Abstract]
Land	$ 1,047,416	$ 1,035,562
Buildings and improvements	4,804,789	4,746,105
Furniture and equipment	11,929	10,507
Total self storage properties	5,864,134	5,792,174
Less accumulated depreciation	(1,051,638)	(874,359)
Self storage properties, net	4,812,496	4,917,815
Depreciation expense related to self storage properties	$ 181,300	$ 210,200	$ 195,900