CONCENTRATION OF CREDIT RISK - Triple-Net Leased Properties (Details) - Customer Concentration Risk	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Revenues | Brookdale Senior Living
Concentration Risk
Concentration percentage	3.40%	3.60%
Revenues | Ardent
Concentration Risk
Concentration percentage	3.00%	3.20%
Revenues | Kindred
Concentration Risk
Concentration percentage	3.00%	3.30%
NOI | Brookdale Senior Living
Concentration Risk
Concentration percentage	7.80%	8.40%
NOI | Ardent
Concentration Risk
Concentration percentage	6.90%	7.30%
NOI | Kindred
Concentration Risk
Concentration percentage	6.90%	7.60%