COPT Defense Properties Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Properties, Net (Details 3)

Properties, Net (Details 3) $ in Thousands	Jun. 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 \| $	$ 300,584	$ 96,782
Assets held for sale, net
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Properties, net \| $	269,008	90,188
Deferred rent receivable \| $	15,765	2,891
Intangible assets on real estate acquisitions, net \| $	1,591	1,591
Deferred leasing costs, net \| $	10,869	1,391
Lease incentives, net \| $	3,351	721
Assets held for sale, net \| $	$ 300,584	$ 96,782
Fort Meade/BW Corridor \| 2016 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property	10
Regional Office \| White Marsh, Maryland \| 2016 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property	13
Regional Office \| White Marsh, Maryland \| 2015 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property		13
Regional Office \| Greater Philadelphia, Pennsylvania \| 2016 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property	4
Other Segments \| San Antonio, Texas \| 2016 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property	2
Other Segments \| San Antonio, Texas \| 2015 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property		2
Defense/Information Technology Locations \| Northern Virginia Defense/IT \| 2016 Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties \| Property	1