SEGMENT INFORMATION - Revenue and Net Real Estate Property (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenues:
Total revenues	$ 1,199,914	$ 1,077,245
Net Real Estate Property:
Total net real estate property	21,550,806		$ 21,748,950
United States
Revenues:
Total revenues	1,063,384	958,126
Net Real Estate Property:
Total net real estate property	18,425,569		18,702,960
Canada
Revenues:
Total revenues	128,959	112,122
Net Real Estate Property:
Total net real estate property	2,921,702		2,837,858
United Kingdom
Revenues:
Total revenues	7,571	$ 6,997
Net Real Estate Property:
Total net real estate property	$ 203,535		$ 208,132