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Organization (Details) $ in Millions	Apr. 01, 2015 USD ($) ft² property project shares	Dec. 31, 2018 ft² property
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		15,077,804
Number of Properties | property		55
Office
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		13,853,401
Number of Properties | property		52
Studio Segment
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		1,224,403
Number of Properties | property		3
EOP Northern California Portfolio
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²	8,200,000
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 real estate properties acquired | property	26
EOP Northern California Portfolio | Development Parcel
Business Acquisition [Line Items]
Number of real estate development projects acquired | project	2

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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-Topic 805
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