Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001058623-18-000044-index-headers.html | 2018-11-14 11:17:38 | |
| 0001058623-18-000044-index.html | 2018-11-14 11:17:38 | |
| 0001058623-18-000044.txt | 2018-11-14 11:17:38 | |
 0001058623-18-000044-xbrl.zip | 313263 | 2018-11-14 11:17:38 |
| cmls-20180930.xml | 2547371 | 2018-11-14 11:17:38 |
| cmls-20180930.xsd | 76424 | 2018-11-14 11:17:38 |
| cmls-20180930x10q.htm | 1974800 | 2018-11-14 11:17:38 |
| cmls-20180930_cal.xml | 141836 | 2018-11-14 11:17:38 |
| cmls-20180930_def.xml | 515329 | 2018-11-14 11:17:38 |
| cmls-20180930_lab.xml | 844517 | 2018-11-14 11:17:38 |
| cmls-20180930_pre.xml | 594763 | 2018-11-14 11:17:38 |
| cmls20180930-exx311.htm | 11500 | 2018-11-14 11:17:38 |
| cmls20180930-exx312.htm | 11417 | 2018-11-14 11:17:38 |
| cmls20180930-exx321.htm | 9863 | 2018-11-14 11:17:38 |
 cumulusmediahorizontal2.jpg | 48477 | 2018-11-14 11:17:38 |
| FilingSummary.xml | 46133 | 2018-11-14 11:17:38 |
| Financial_Report.xlsx | 116400 | 2018-11-14 11:17:38 |
| R1.htm | 29396 | 2018-11-14 11:17:38 |
| R10.htm | 286789 | 2018-11-14 11:17:38 |
| R11.htm | 83969 | 2018-11-14 11:17:38 |
| R12.htm | 5374 | 2018-11-14 11:17:38 |
| R13.htm | 29053 | 2018-11-14 11:17:38 |
| R14.htm | 67337 | 2018-11-14 11:17:38 |
| R15.htm | 43645 | 2018-11-14 11:17:38 |
| R16.htm | 23306 | 2018-11-14 11:17:38 |
| R17.htm | 45057 | 2018-11-14 11:17:38 |
| R18.htm | 30013 | 2018-11-14 11:17:38 |
| R19.htm | 44084 | 2018-11-14 11:17:38 |
| R2.htm | 96424 | 2018-11-14 11:17:38 |
| R20.htm | 89306 | 2018-11-14 11:17:38 |
| R21.htm | 17681 | 2018-11-14 11:17:38 |
| R22.htm | 140055 | 2018-11-14 11:17:38 |
| R23.htm | 39151 | 2018-11-14 11:17:38 |
| R24.htm | 59557 | 2018-11-14 11:17:38 |
| R25.htm | 241353 | 2018-11-14 11:17:38 |
| R26.htm | 67757 | 2018-11-14 11:17:38 |
| R27.htm | 27678 | 2018-11-14 11:17:38 |
| R28.htm | 98175 | 2018-11-14 11:17:38 |
| R29.htm | 18935 | 2018-11-14 11:17:38 |
| R3.htm | 29300 | 2018-11-14 11:17:38 |
| R30.htm | 19701 | 2018-11-14 11:17:38 |
| R31.htm | 35934 | 2018-11-14 11:17:38 |
| R32.htm | 29170 | 2018-11-14 11:17:38 |
| R33.htm | 87761 | 2018-11-14 11:17:38 |
| R34.htm | 9249 | 2018-11-14 11:17:38 |
| R35.htm | 135685 | 2018-11-14 11:17:38 |
| R36.htm | 8774 | 2018-11-14 11:17:38 |
| R37.htm | 58453 | 2018-11-14 11:17:38 |
| R38.htm | 9615 | 2018-11-14 11:17:38 |
| R39.htm | 45793 | 2018-11-14 11:17:38 |
| R4.htm | 81201 | 2018-11-14 11:17:38 |
| R40.htm | 35796 | 2018-11-14 11:17:38 |
| R41.htm | 12768 | 2018-11-14 11:17:38 |
| R42.htm | 161576 | 2018-11-14 11:17:38 |
| R43.htm | 13291 | 2018-11-14 11:17:38 |
| R44.htm | 7990 | 2018-11-14 11:17:38 |
| R45.htm | 27035 | 2018-11-14 11:17:38 |
| R46.htm | 22956 | 2018-11-14 11:17:38 |
| R47.htm | 11263 | 2018-11-14 11:17:38 |
| R48.htm | 48069 | 2018-11-14 11:17:38 |
| R49.htm | 27930 | 2018-11-14 11:17:38 |
| R5.htm | 7493 | 2018-11-14 11:17:38 |
| R50.htm | 20683 | 2018-11-14 11:17:38 |
| R51.htm | 20470 | 2018-11-14 11:17:38 |
| R52.htm | 37770 | 2018-11-14 11:17:38 |
| R53.htm | 15328 | 2018-11-14 11:17:38 |
| R54.htm | 5668 | 2018-11-14 11:17:38 |
| R55.htm | 37499 | 2018-11-14 11:17:38 |
| R56.htm | 27723 | 2018-11-14 11:17:38 |
| R57.htm | 38699 | 2018-11-14 11:17:38 |
| R58.htm | 20482 | 2018-11-14 11:17:38 |
| R59.htm | 42628 | 2018-11-14 11:17:38 |
| R6.htm | 43643 | 2018-11-14 11:17:38 |
| R60.htm | 31459 | 2018-11-14 11:17:38 |
| R61.htm | 28550 | 2018-11-14 11:17:38 |
| R62.htm | 10006 | 2018-11-14 11:17:38 |
| R63.htm | 9979 | 2018-11-14 11:17:38 |
| R64.htm | 16143 | 2018-11-14 11:17:38 |
| R65.htm | 23849 | 2018-11-14 11:17:38 |
| R66.htm | 86438 | 2018-11-14 11:17:38 |
| R67.htm | 52516 | 2018-11-14 11:17:38 |
| R68.htm | 27755 | 2018-11-14 11:17:38 |
| R69.htm | 45794 | 2018-11-14 11:17:38 |
| R7.htm | 89158 | 2018-11-14 11:17:38 |
| R70.htm | 10878 | 2018-11-14 11:17:38 |
| R71.htm | 10603 | 2018-11-14 11:17:38 |
| R72.htm | 93329 | 2018-11-14 11:17:38 |
| R8.htm | 98892 | 2018-11-14 11:17:38 |
| R9.htm | 286794 | 2018-11-14 11:17:38 |
| R9999.htm | 11112 | 2018-11-14 11:17:38 |
| report.css | 2767 | 2018-11-14 11:17:38 |
| Show.js | 1085 | 2018-11-14 11:17:38 |