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Related Party Transactions - Additional Information (Details) ft² in Millions | Apr. 01, 2015 USD ($) ft² project property director_nominee director shares | Mar. 31, 2015 director
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Related Party Transaction [Line Items] |  |
Directors on the board | director | 11 | 8
Director nominees on the board | director_nominee | 3 |
Equity consideration, lower threshold for three nominee designations | 50.00% |
Number of director nominees designated, sponsor stockholders, equity consideration, 30% to 50% | director_nominee | 2 |
Number of director nominees designated, sponsor stockholders, equity consideration, 15% to 30% | director_nominee | 1 |
Equity consideration, lower threshold for nominee designations | 15.00% |
Maximum directors on the board | director | 12 |
Number of nominees permitted to be appointed to committees, given sponsor stockholders' right to designate two director nominees | director_nominee | 1 |
Upper threshold of equity interests for sponsor stockholders' restrictions | 10.00% |
Percent of covered securities released from restrictions, tranche one | 50.00% |
Percent of covered securities released from restrictions, tranche two | 50.00% |
Period following written consent of termination of board nomination rights for release of restrictions on covered securities | 30 days |
Aggregate maximum common stock issuable without written consent | 16,843,028 |
Upper threshold of sponsor stockholders' equity consideration to maintain proxy voting | 15.00% |
Holding period for redemption of units and grants | 14 months |
Number of shares used in exchange valuation | 1 |
Stockholders' Agreement, Holding Period Prior To Transfers Of Common Units | 14 months |
Adjusted maximum aggregate common interests for sponsor stockholders | 17,707,056 |
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, overall company excluding Market street | 9.90% |
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, Market street | 5.45% |
Maximum tenant ownership allowable for sponsor stockholders to reach excepted holder limit, minimum ownership percentage after exclusions | 2.00% |
Maximum rental income expected to be produced by tenants allowable for sponsor stockholders to reach excepted holder limit, overall company excluding Market street | 0.50% |
Maximum rental income expected to be produced by tenants allowable for sponsor stockholders to reach excepted holder limit, Market street | 0.50% |
Minimum period between qualified offerings | 120 days |
Qualified offerings, minimum amount | $ | $ 50,000,000 |
Upper threshold for sponsor stockholders' equity consideration at which company cannot consummate significant transactions | 9.80% |
Maximum aggregate value of units for redemption | $ | $ 50,000,000 |
EOP Northern California Portfolio |  |
Related Party Transaction [Line Items] |  |
Area of real estate property | ft² | 8.2 |
Gross payments to acquire business | $ | $ 1,750,000,000 |
Consideration transferred, common units | 63,474,791 |
EOP Northern California Portfolio | Office Building |  |
Related Party Transaction [Line Items] |  |
Number of real estate properties acquired | property | 26 |
EOP Northern California Portfolio | Development Parcel |  |
Related Party Transaction [Line Items] |  |
Development projects acquired | project | 2 |

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