CONCENTRATION OF CREDIT RISK - Triple-Net Leased Properties (Details) $ in Thousands	3 Months Ended
Mar. 31, 2025 USD ($) property	Mar. 31, 2024 USD ($)
Concentration Risk
Number of real estate properties	1,372
Other Noncash Income (Expense) \| $	$ (4,227)	$ (5,422)
Ardent \| LTAC \| OM&R
Concentration Risk
Number of real estate properties	19
Brookdale (1)(2) \| SHOP
Concentration Risk
Number of real estate properties	9
Brookdale Senior Living
Concentration Risk
Other Noncash Income (Expense) \| $	$ 6,600	$ 10,700
Customer Concentration Risk \| Revenues \| Brookdale (1)(2)
Concentration Risk
Concentration percentage	3.00%	3.10%
Customer Concentration Risk \| Revenues \| Ardent
Concentration Risk
Concentration percentage	2.60%	2.80%
Customer Concentration Risk \| Revenues \| Kindred
Concentration Risk
Concentration percentage	2.70%	2.80%
Customer Concentration Risk \| Revenues \| All others
Concentration Risk
Concentration percentage	20.40%	23.50%
Customer Concentration Risk \| NOI \| Brookdale (1)(2)
Concentration Risk
Concentration percentage	7.00%	7.40%
Customer Concentration Risk \| NOI \| Ardent
Concentration Risk
Concentration percentage	6.10%	6.70%
Customer Concentration Risk \| NOI \| Kindred
Concentration Risk
Concentration percentage	6.30%	6.60%
Customer Concentration Risk \| NOI \| All others
Concentration Risk
Concentration percentage	34.10%	38.90%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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