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REAL ESTATE INVESTMENTS - Schedule of Gross Carrying Value of Operating Properties (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Long Lived Assets Held-for-sale [Line Items] |  |
Total | $ 3,549,674 | $ 3,542,232
Continuing Operations |  |
Long Lived Assets Held-for-sale [Line Items] |  |
Land | 394,628 | 394,669
Building and improvements | 2,677,619 | 2,671,024
Tenant improvements | $ 477,427 | $ 476,539

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