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ACQUISITIONS AND DISPOSITIONS (Details) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Feb. 12, 2020 USD ($) | Mar. 31, 2020 USD ($) property | Mar. 31, 2019 USD ($) | Mar. 15, 2020 USD ($)
Business Acquisition [Line Items] |  |  |  |
Purchase price |  | $ 167,289 |  |
Number of acquisitions completed by the Company |  | 0 |  |
Gain on sale of real estate |  | $ 39,775 | $ 16,953 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of disposed properties | property |  | 3 |  |
Aggregate sale price of disposed properties |  | $ 58,100 |  |
Gain on sale of real estate |  | (39,800) |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Chicopee, MA |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Gain on sale of real estate |  | (17,000) |  |
Disposal group, including discontinued operation, consideration |  |  |  | $ 18,200
Kingswood Center And Kingswood Crossing |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price |  | 167,300 |  |
Purchase price of real estate property acquired |  | 167,289 |  |
Kingswood Center |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price |  | 90,212 |  |
Purchase price of real estate property acquired | $ 90,212 |  |  |
Kingswood Crossing |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price |  | $ 77,077 |  |
Purchase price of real estate property acquired | $ 77,077 |  |  |
Reverse Section 1031 like-kind exchange, term |  | 180 days |  |
Mortgages | Kingswood Center |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Mortgage loan related to property sales |  | $ 65,500 |  |

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