CONCENTRATION OF CREDIT RISK - Triple-Net Leased Properties (Details) - property	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Concentration Risk
Number of real estate properties	1,319
Ardent | LTAC | OM&R
Concentration Risk
Number of real estate properties	19
Brookdale (2) | SHOP
Concentration Risk
Number of real estate properties	9
Customer Concentration Risk | Revenues | Brookdale (2)
Concentration Risk
Concentration percentage	3.10%	3.30%
Customer Concentration Risk | Revenues | Ardent
Concentration Risk
Concentration percentage	2.80%	2.90%
Customer Concentration Risk | Revenues | Kindred
Concentration Risk
Concentration percentage	2.80%	2.90%
Customer Concentration Risk | Revenues | All others
Concentration Risk
Concentration percentage	22.90%	25.20%
Customer Concentration Risk | NOI | Brookdale (2)
Concentration Risk
Concentration percentage	7.30%	7.60%
Customer Concentration Risk | NOI | Ardent
Concentration Risk
Concentration percentage	6.70%	6.80%
Customer Concentration Risk | NOI | Kindred
Concentration Risk
Concentration percentage	6.80%	6.80%
Customer Concentration Risk | NOI | All others
Concentration Risk
Concentration percentage	37.50%	41.90%