Disposals (Notes)

6 Months Ended

Jun. 30, 2018

Discontinued Operations and Disposal Groups [Abstract]

Mergers, Acquisitions and Dispositions Disclosures [Text Block]

Dispositions

In April 2018, we sold Summit I and II, two office assets located in Reston, Virginia including 700,000 square feet of estimated potential development density, for an aggregate gross sales price of $95.0 million, resulting in a gain on the sale of $6.2 million. In connection with the sale, we repaid the related $59.0 million mortgage payable outstanding. In February 2018, we sold a land parcel and temporary easements associated with the Summit site for $2.2 million, resulting in a gain on the sale of $455,000.

In May 2018, we sold the Bowen Building, an office building located in Washington, D.C., for a gross sales price of $140.0 million, resulting in a gain on the sale of $27.2 million. In connection with the sale, we repaid $115.0 million of the then outstanding balance on our revolving credit facility.