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VARIABLE INTEREST ENTITIES, CONTINGENT LIABILITY AND CONSOLIDATED JOINT VENTURES - Ground Leases (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 01, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2016
Variable Interest Entities - Ground Lease |  |  |  |  |  |
Revenue |  | $ 20,436,000 | $ 21,071,000 | $ 61,674,000 | $ 63,171,000 |
Variable Interest Entity, Not Primary Beneficiary | The Vue |  |  |  |  |  |
Variable Interest Entities - Ground Lease |  |  |  |  |  |
Maximum Exposure to Loss |  | 15,410,000 |  | 15,410,000 |  |
Owner/ Operator Mortgage from Third Party |  |  |  |  |  | $ 67,444,000
Current Balance of Owner or Operator Mortgage Debt Obtained From Third Party |  | 66,307,000 |  | $ 66,307,000 |  |
Percentage of operating expense shortfalls covered by the Company |  |  |  | 78.00% |  |
Amount of operating expense shortfalls covered by the Company | $ 238,000 | 221,000 |  | $ 1,353,000 |  |
Variable Interest Entity, Not Primary Beneficiary | The Vue | Ground lease rental income |  |  |  |  |  |
Variable Interest Entities - Ground Lease |  |  |  |  |  |
Revenue |  | $ 0 | $ 243,000 | $ 0 | $ 729,000 |

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