Information by Business Segment (Details 4) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Reconciliation of segment assets to total assets | ||
| Total COPT consolidated assets | $ 3,656,005 | $ 3,595,205 |
| Segment assets [Member] | ||
| Reconciliation of segment assets to total assets | ||
| Total COPT consolidated assets | 3,084,862 | 3,028,005 |
| Non-operating property assets [Member] | ||
| Reconciliation of segment assets to total assets | ||
| Total COPT consolidated assets | 410,671 | 411,041 |
| Other assets [Member] | ||
| Reconciliation of segment assets to total assets | ||
| Total COPT consolidated assets | $ 160,472 | $ 156,159 |
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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