v3.8.0.1

INTANGIBLE ASSETS AND GOODWILL (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Changes in goodwill [Roll Forward] |  |  |
Goodwill before cumulative loss on impairment |  | $ 988,056 | $ 158,333
Accumulated loss on impairment |  | (126,056) | $ (125,615)
Beginning balance after cumulative loss on impairment | $ 862,000 | 32,718 |
Loss on impairment during the year | 0 | (441) |
Acquisition | 0 | 820,961 |
Dispositions | 0 | 0 |
Acquisition of Charlotte | 0 | 43 |
Disposition of radio station - EMF sale | 0 | (266) |
Acquisition of radio station - iHeartMedia Transaction | 0 | 11,700 |
Disposition of radio station - iHeartMedia Transaction | 0 | (14) |
Acquisition of radio station - Beasley Transaction | 0 | 289 |
Assets held for sale | 0 | (2,990) |
Deconsolidation of a subsidiary | 0 | 0 |
Goodwill Acquired Through Exchange | 0 | 0 |
Adjustments to acquired goodwill | (2,949) | 0 |
Ending balance | $ 859,051 | $ 862,000 |

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