DESCRIPTION OF BUSINESS - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 segment property	Dec. 31, 2022 segment	Dec. 31, 2021 segment
Real estate properties
Number of Properties	1,355
Number of reportable segments | segment	3	3	3
Percentage of Total NOI	100.00%
Triple-net leased properties
Real estate properties
Number of Properties	331
Percentage of Total NOI	31.00%
Outpatient Medical And Research Portfolio
Real estate properties
Number of Properties	437
Percentage of Total NOI	30.00%