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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2025 USD ($) facility | Jul. 31, 2025 facility | Dec. 31, 2024 USD ($)
Basis Of Presentation And Significant Accounting Policies [Line Items] |  |  |
Number of reportable segment | 1 |  |
Number of Operating Segments | 1 |  |
Number of real estate properties | facility | 1,056 |  |
Real estate assets - net | $ 6,795,148,000 |  | $ 6,339,158,000
Assets held for sale | $ 12,358,000 |  | $ 56,194,000
Omega OP Units |  |  |
Basis Of Presentation And Significant Accounting Policies [Line Items] |  |  |
Ownership by parent | 97.00% |  |
Ownership by noncontrolling interest | 3.00% |  |
Genesis Healthcare [Member] | Subsequent Event [Member] |  |  |
Basis Of Presentation And Significant Accounting Policies [Line Items] |  |  |
Number of real estate properties | facility |  | 31 |

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