Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-26-017968-index-headers.html | 2026-02-20 11:11:27 | |
| 0001104659-26-017968-index.html | 2026-02-20 11:11:27 | |
| 0001104659-26-017968.txt | 2026-02-20 11:11:27 | |
 0001104659-26-017968-xbrl.zip | 553122 | 2026-02-20 11:11:27 |
| ccoi-20251231.xsd | 91976 | 2026-02-20 11:11:27 |
| ccoi-20251231x10k.htm | 2815553 | 2026-02-20 11:11:27 |
 ccoi-20251231x10k002.jpg | 70814 | 2026-02-20 11:11:27 |
 ccoi-20251231x10k003.jpg | 48239 | 2026-02-20 11:11:27 |
| ccoi-20251231x10k_htm.xml | 2486298 | 2026-02-20 11:11:27 |
| ccoi-20251231xex10d17.htm | 237607 | 2026-02-20 11:11:27 |
| ccoi-20251231xex21d1.htm | 84090 | 2026-02-20 11:11:27 |
| ccoi-20251231xex23d1.htm | 7250 | 2026-02-20 11:11:27 |
| ccoi-20251231xex31d1.htm | 9567 | 2026-02-20 11:11:27 |
| ccoi-20251231xex31d2.htm | 9577 | 2026-02-20 11:11:27 |
| ccoi-20251231xex32d1.htm | 5984 | 2026-02-20 11:11:27 |
| ccoi-20251231xex32d2.htm | 5986 | 2026-02-20 11:11:27 |
| ccoi-20251231_cal.xml | 101219 | 2026-02-20 11:11:27 |
| ccoi-20251231_def.xml | 448796 | 2026-02-20 11:11:27 |
| ccoi-20251231_lab.xml | 875637 | 2026-02-20 11:11:27 |
| ccoi-20251231_pre.xml | 656143 | 2026-02-20 11:11:27 |
| FilingSummary.xml | 50617 | 2026-02-20 11:11:27 |
| MetaLinks.json | 1377198 | 2026-02-20 11:11:27 |
| R1.htm | 70455 | 2026-02-20 11:11:27 |
| R10.htm | 38252 | 2026-02-20 11:11:27 |
| R11.htm | 34211 | 2026-02-20 11:11:27 |
| R12.htm | 84662 | 2026-02-20 11:11:27 |
| R13.htm | 138505 | 2026-02-20 11:11:27 |
| R14.htm | 19331 | 2026-02-20 11:11:27 |
| R15.htm | 11865 | 2026-02-20 11:11:27 |
| R16.htm | 76284 | 2026-02-20 11:11:27 |
| R17.htm | 11679 | 2026-02-20 11:11:27 |
| R18.htm | 126300 | 2026-02-20 11:11:27 |
| R19.htm | 6168 | 2026-02-20 11:11:27 |
| R2.htm | 135921 | 2026-02-20 11:11:27 |
| R20.htm | 30529 | 2026-02-20 11:11:27 |
| R21.htm | 17880 | 2026-02-20 11:11:27 |
| R22.htm | 8465 | 2026-02-20 11:11:27 |
| R23.htm | 4371 | 2026-02-20 11:11:27 |
| R24.htm | 47146 | 2026-02-20 11:11:27 |
| R25.htm | 242597 | 2026-02-20 11:11:27 |
| R26.htm | 232478 | 2026-02-20 11:11:27 |
| R27.htm | 36475 | 2026-02-20 11:11:27 |
| R28.htm | 34897 | 2026-02-20 11:11:27 |
| R29.htm | 13470 | 2026-02-20 11:11:27 |
| R3.htm | 35710 | 2026-02-20 11:11:27 |
| R30.htm | 139196 | 2026-02-20 11:11:27 |
| R31.htm | 14089 | 2026-02-20 11:11:27 |
| R32.htm | 73175 | 2026-02-20 11:11:27 |
| R33.htm | 113924 | 2026-02-20 11:11:27 |
| R34.htm | 157089 | 2026-02-20 11:11:27 |
| R35.htm | 90676 | 2026-02-20 11:11:27 |
| R36.htm | 133899 | 2026-02-20 11:11:27 |
| R37.htm | 5868 | 2026-02-20 11:11:27 |
| R38.htm | 9518 | 2026-02-20 11:11:27 |
| R39.htm | 4639 | 2026-02-20 11:11:27 |
| R4.htm | 104532 | 2026-02-20 11:11:27 |
| R40.htm | 95541 | 2026-02-20 11:11:27 |
| R41.htm | 51328 | 2026-02-20 11:11:27 |
| R42.htm | 11090 | 2026-02-20 11:11:27 |
| R43.htm | 4891 | 2026-02-20 11:11:27 |
| R44.htm | 38523 | 2026-02-20 11:11:27 |
| R45.htm | 14600 | 2026-02-20 11:11:27 |
| R46.htm | 30578 | 2026-02-20 11:11:27 |
| R47.htm | 36235 | 2026-02-20 11:11:27 |
| R48.htm | 22489 | 2026-02-20 11:11:27 |
| R49.htm | 45917 | 2026-02-20 11:11:27 |
| R5.htm | 7172 | 2026-02-20 11:11:27 |
| R50.htm | 17077 | 2026-02-20 11:11:27 |
| R51.htm | 10439 | 2026-02-20 11:11:27 |
| R52.htm | 269574 | 2026-02-20 11:11:27 |
| R53.htm | 30299 | 2026-02-20 11:11:27 |
| R54.htm | 19731 | 2026-02-20 11:11:27 |
| R55.htm | 14383 | 2026-02-20 11:11:27 |
| R56.htm | 26901 | 2026-02-20 11:11:27 |
| R57.htm | 32536 | 2026-02-20 11:11:27 |
| R58.htm | 13413 | 2026-02-20 11:11:27 |
| R59.htm | 50944 | 2026-02-20 11:11:27 |
| R6.htm | 69819 | 2026-02-20 11:11:27 |
| R60.htm | 22513 | 2026-02-20 11:11:27 |
| R61.htm | 4888 | 2026-02-20 11:11:27 |
| R62.htm | 27018 | 2026-02-20 11:11:27 |
| R63.htm | 25786 | 2026-02-20 11:11:27 |
| R64.htm | 4525 | 2026-02-20 11:11:27 |
| R65.htm | 12911 | 2026-02-20 11:11:27 |
| R66.htm | 10238 | 2026-02-20 11:11:27 |
| R67.htm | 23222 | 2026-02-20 11:11:27 |
| R68.htm | 25528 | 2026-02-20 11:11:27 |
| R69.htm | 56306 | 2026-02-20 11:11:27 |
| R7.htm | 109808 | 2026-02-20 11:11:27 |
| R70.htm | 27611 | 2026-02-20 11:11:27 |
| R71.htm | 20825 | 2026-02-20 11:11:27 |
| R72.htm | 43955 | 2026-02-20 11:11:27 |
| R73.htm | 56840 | 2026-02-20 11:11:27 |
| R74.htm | 23197 | 2026-02-20 11:11:27 |
| R75.htm | 11289 | 2026-02-20 11:11:27 |
| R8.htm | 12687 | 2026-02-20 11:11:27 |
| R9.htm | 280992 | 2026-02-20 11:11:27 |
| report.css | 2767 | 2026-02-20 11:11:27 |
| Show.js | 1085 | 2026-02-20 11:11:27 |