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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 28, 2021 property | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jul. 23, 2021 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Limited payment guarantee, percent of principle balance (up to) |  |  |  | 25.00%
One and Two Commerce Square | Preferred Equity Investment |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Other commitments |  | $ 20.0 |  |
Amount committed to date |  | 4.7 |  |
Drexel Square |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Other commitments |  | 7.0 |  |
Estimated potential additional contribution obligation |  | 2.3 |  |
Winter Storm |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of properties damaged | property | 1 |  |  |
Write-off of fixed assets |  |  | $ 1.2 |
Restoration liability |  | 0.8 | 7.2 |
Business interruption costs |  |  | 3.9 |
Insurance proceeds |  | 2.4 | 15.3 |
Winter Storm | Other Income |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Insurance proceeds |  |  | 3.0 |
Winter Storm | Accounts Payable and Accrued Liabilities |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Restoration liability |  |  | $ 1.9 |
3025 JFK Venture |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Construction loan amount |  |  |  | $ 186.7
Unconsolidated Real Estate Ventures |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Unconsolidated real estate venture debt at 100%, gross |  | $ 1,217.2 |  |

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