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Organization (Details) ft² in Thousands | Mar. 31, 2017 a ft² Property MW
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Properties under or approved for redevelopment |
Investments in real estate |
Number of real estate properties | 1
Area of real estate property (in square feet or acres) | ft² | 14
Operating office properties |
Investments in real estate |
Number of real estate properties | 164
Area of real estate property (in square feet or acres) | ft² | 17,100
Operating office properties | Single-tenant data centers |
Investments in real estate |
Number of real estate properties | 13
Office properties under, or contractually committed for, construction or approved for redevelopment |
Investments in real estate |
Number of real estate properties | 9
Area of real estate property (in square feet or acres) | ft² | 1,300
Office properties under, or contractually committed for, construction or approved for redevelopment | Properties completed Held-for-future lease |
Investments in real estate |
Number of real estate properties | 2
Partially operational properties | Properties under or approved for redevelopment |
Investments in real estate |
Number of real estate properties | 2
Land controlled for future development |
Investments in real estate |
Area of real estate property (in square feet or acres) | a | 987
Developable square feet | ft² | 12,200
Other Land |
Investments in real estate |
Area of real estate property (in square feet or acres) | a | 194
Operating wholesale data centers |
Investments in real estate |
Critical load (in megawatts) | MW | 19.25
GI-COPT | Operating office properties | Single-tenant data centers |
Investments in real estate |
Number of real estate properties | 6

X
- Definition Represents the amount of the critical load of the property. Critical load is the amount of megawatts of power made available for the exclusive use tenants in the property. + References No definition available. + Details
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Data Type: | num:powerItemType
Balance Type: | na
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- Definition The amount of square feet into which a land parcel is potentially developable. + References No definition available. + Details
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- Definition Area of a real estate property. + References No definition available. + Details
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Balance Type: | na
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
Name: | ofc_RealEstatePropertiesStatusAxis=ofc_WholesaleDataCenterMember
Namespace Prefix: |
Data Type: | na
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- Details
Name: | dei_LegalEntityAxis=ofc_GICOPTDCPartnershipLLCMember
Namespace Prefix: |
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