DESCRIPTION OF BUSINESS (Details)	6 Months Ended
	Jun. 30, 2023 segment property tenant
Real estate properties
Number of real estate properties	1,400
Number of reportable segments | segment	3
Largest tenants | tenant	3
Outpatient Medical and Research Portfolio
Real estate properties
Number of real estate properties	460
Brookdale Senior Living
Real estate properties
Number of real estate properties	121
Ardent
Real estate properties
Number of real estate properties	30
Ardent MOBs
Real estate properties
Number of real estate properties	19
Kindred
Real estate properties
Number of real estate properties	29
Triple-Net Leased Properties
Real estate properties
Number of real estate properties	355
Seniors Housing Communities
Real estate properties
Number of real estate properties	579