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| 0000860546-17-000013-index.html | 2017-04-28 16:18:23 | |
| 0000860546-17-000013.txt | 2017-04-28 16:18:23 | |
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| copt03312017ex121.htm | 27647 | 2017-04-28 16:18:23 |
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| copt10q03312017document.htm | 1951826 | 2017-04-28 16:18:23 |
| FilingSummary.xml | 37998 | 2017-04-28 16:18:23 |
| Financial_Report.xlsx | 93318 | 2017-04-28 16:18:23 |
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| ofc-20170331.xsd | 74383 | 2017-04-28 16:18:23 |
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| report.css | 2767 | 2017-04-28 16:18:23 |
| Show.js | 1410 | 2017-04-28 16:18:23 |