Properties, net (Details 3) (USD $)
|
0 Months Ended | 3 Months Ended | |
---|---|---|---|
Mar. 19, 2015
|
Mar. 31, 2015
|
Mar. 19, 2015
sqft
|
|
Business Acquisition [Line Items] | |||
Weighted average useful life | 10 years | ||
Tenant relationship value | |||
Business Acquisition [Line Items] | |||
Weighted average useful life | 8 years | ||
250 W Pratt St | Baltimore, Maryland | |||
Business Acquisition [Line Items] | |||
Square footage of real estate properties (in square feet) |
367,000us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
367,000us-gaap_AreaOfRealEstateProperty / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Acquired property percentage leased |
96.20%ofc_AcquiredPropertyPercentageLeased / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
96.20%ofc_AcquiredPropertyPercentageLeased / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Total acquisition cost |
$ 61,900,000us-gaap_PaymentsToAcquireRealEstate / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
Land |
8,057,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
8,057,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Building and improvements |
34,740,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
34,740,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Intangible assets on real estate acquisitions |
20,183,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
20,183,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Total assets |
62,980,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
62,980,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Below-market leases |
(1,093,000)ofc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBelowmarketLeases / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
(1,093,000)ofc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBelowmarketLeases / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Total acquisition cost |
61,887,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
61,887,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
|
Finite-lived intangible assets acquired |
20,183,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
Weighted average useful life | 8 years | ||
Operating property acquisition costs |
1,000,000us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
250 W Pratt St | Baltimore, Maryland | Tenant relationship value | |||
Business Acquisition [Line Items] | |||
Finite-lived intangible assets acquired |
7,252,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
Weighted average useful life | 11 years | ||
250 W Pratt St | Baltimore, Maryland | In-place lease value | |||
Business Acquisition [Line Items] | |||
Finite-lived intangible assets acquired |
10,218,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_LeasesAcquiredInPlaceMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
Weighted average useful life | 7 years | ||
250 W Pratt St | Baltimore, Maryland | Above market leases | |||
Business Acquisition [Line Items] | |||
Finite-lived intangible assets acquired |
$ 2,713,000us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_BusinessAcquisitionAxis = ofc_A250WPrattStMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_AboveMarketLeasesMember / us-gaap_StatementGeographicalAxis = ofc_BaltimoreMarylandMember |
||
Weighted average useful life | 4 years |
X | ||||||||||
- Definition
The percentage of acquired property that is leased at the time of acquisition, expressed as a percent. No definition available.
|
X | ||||||||||
- Definition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Below-market Leases No definition available.
|
X | ||||||||||
- Definition
Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Area of a real estate property. No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Definition
This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of assets acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of intangible assets, excluding goodwill, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of real estate acquired, at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. No definition available.
|
X | ||||||||||
- Definition
The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|