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| 0001104659-21-100548.txt | 2021-08-05 10:52:38 | |
 0001104659-21-100548-xbrl.zip | 206270 | 2021-08-05 10:52:38 |
| ccoi-20210630.xsd | 35814 | 2021-08-05 10:52:38 |
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| ccoi-20210630xex32d1.htm | 6771 | 2021-08-05 10:52:38 |
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| R9.htm | 7713 | 2021-08-05 10:52:38 |
| report.css | 2767 | 2021-08-05 10:52:38 |
| Show.js | 1085 | 2021-08-05 10:52:38 |