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Organization (Details) ft² in Millions, $ in Millions | Apr. 01, 2015 USD ($) ft² property project shares | Dec. 31, 2016 property
--- | --- | ---
Office |  |
Business Acquisition [Line Items] |  |
Number of real estate properties |  | 54
Media & Entertainment |  |
Business Acquisition [Line Items] |  |
Number of real estate properties |  | 2
EOP Northern California Portfolio |  |
Business Acquisition [Line Items] |  |
Area of real estate property | ft² | 8.2 |
Payments to acquire businesses | $ | $ 1,750 |
Shares issued as consideration for business combination | shares | 63,474,791 |
EOP Northern California Portfolio | Office Building |  |
Business Acquisition [Line Items] |  |
Number of Buildings (unaudited) | 26 |
EOP Northern California Portfolio | Development Parcel |  |
Business Acquisition [Line Items] |  |
Number of real estate development projects acquired | project | 2 |

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