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	Mar. 31, 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	$ 225,897	$ 96,782
Assets Held For Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Properties, net	199,481	90,188
Deferred rent receivable	12,542	2,891
Intangible assets on real estate acquisitions, net	1,591	1,591
Deferred leasing costs, net	9,228	1,391
Lease incentives, net	3,055	721
Assets held for sale, net	$ 225,897	$ 96,782
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
Fort Meade/BW Corridor \| Hanover, 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	2
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