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Real Estate Investments Business Acquisitions (Parenthetical) (Details) $ in Thousands |  | 6 Months Ended
--- | --- | ---
Jul. 01, 2019 USD ($) ft² | Jun. 30, 2019 USD ($) a | Jun. 30, 2018 USD ($)
Business Acquisition [Line Items] |  |  |
Purchase Price |  | $ 25,027 | $ 202,663
Pablo Plaza [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Purchase of land for redevelopment | a |  | 0.17 |
Date Purchased |  | Jan. 08, 2019 |
Ownership |  | 100.00% |
Purchase Price |  | $ 600 |
The Pruneyard [Member] | Subsequent Event |  |  |
Business Acquisition [Line Items] |  |  |
Purchase of land for redevelopment | ft² | 258,000 |  |
Date Purchased | Jul. 01, 2019 |  |
Ownership | 100.00% |  |
Purchase Price | $ 212,500 |  |

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