CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Equity-based compensation expense | $ 15,205 | $ 12,677 | ||
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Equity-based compensation expense | $ 7,545 | $ 4,158 | 14,789 | 11,681 |
| Location, Statement of Income, Balance [Axis]: ccoi:NetworkOperations | ||||
| Equity-based compensation expense | $ 97 | $ 506 | $ 416 | $ 996 |