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Organization, Formation, and Basis of Presentation (Tables) | 12 Months Ended
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Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Significant Properties Acquired, Developed and/or Disposed | The following table lists the significant properties acquired, developed and/or disposed of by the Company since January 1, 2016.
Name of Property | Location |  | Type |  | Year of Acquisition/ Development/ Disposal
Acquisitions |  |  |  |  |
Burtonsville Town Square | Burtonsville, Maryland |  | Shopping Center |  | 2017
7316 Wisconsin Avenue | Bethesda, Maryland |  | Mixed-Use |  | 2018
Developments |  |  |  |  |
750 N. Glebe Road | Arlington, Virginia |  | Mixed-Use |  | 2017-2018
Ashbrook Marketplace | Ashburn, Virginia |  | Shopping Center |  | 2018
Dispositions |  |  |  |  |
Crosstown Business Center | Tulsa, Oklahoma |  | Mixed-Use |  | 2016
Great Eastern | District Heights, Maryland |  | Shopping Center |  | 2017

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- Definition Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations. + References No definition available. + Details
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