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v2.4.1.9

Information by Business Segment (Details 3) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014
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Reconciliation of segment assets to total assets |  |  |
Assets | $ 3,777,155 us-gaap_Assets | $ 3,670,257 us-gaap_Assets | $ 3,605,897 us-gaap_Assets
Segment assets |  |  |
Reconciliation of segment assets to total assets |  |  |
Assets | 3,110,380 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  | 2,932,749 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember
Non-operating property assets |  |  |
Reconciliation of segment assets to total assets |  |  |
Assets | 496,930 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = ofc_NonOperatingPropertyAssetsMember |  | 503,030 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = ofc_NonOperatingPropertyAssetsMember
Other assets |  |  |
Reconciliation of segment assets to total assets |  |  |
Assets | $ 169,845 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember |  | $ 170,118 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Details
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- Details
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