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Properties, Net (Details 3) $ in Thousands | Sep. 30, 2016 USD ($) Property | Dec. 31, 2015 USD ($) Property
--- | --- | ---
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Assets held for sale, net | $ 161,454 | $ 96,782
Assets held for sale, net |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Properties, net | 147,236 | 90,188
Deferred rent receivable | 6,642 | 2,891
Intangible assets on real estate acquisitions, net | 1,540 | 1,591
Deferred leasing costs, net | 4,901 | 1,391
Lease incentives, net | 1,135 | 721
Assets held for sale, net | $ 161,454 | $ 96,782
Fort Meade/BW Corridor | Assets held for sale, net |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Number of properties | Property | 6 |
Regional Office | White Marsh, Maryland | Assets held for sale, net |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Number of properties | Property | 9 | 13
Other Segments | San Antonio, Texas | Assets held for sale, net |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Number of properties | Property | 2 | 2
Defense/Information Technology Locations | Northern Virginia Defense/IT | Assets held for sale, net |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Number of properties | Property | 2 |

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