SEGMENT INFORMATION - Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Total revenues	$ 4,129,193	$ 3,828,007	$ 3,795,357
Net real estate property:
Total net real estate property	21,160,450	21,816,838
United States
Revenues:
Total revenues	3,652,327	3,363,197	3,381,357
Net real estate property:
Total net real estate property	18,168,224	18,562,738
Canada
Revenues:
Total revenues	449,091	434,862	389,205
Net real estate property:
Total net real estate property	2,782,350	3,007,008
United Kingdom
Revenues:
Total revenues	27,775	29,948	$ 24,795
Net real estate property:
Total net real estate property	$ 209,876	$ 247,092