v3.8.0.1

INTANGIBLE ASSETS AND GOODWILL (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 number | Jun. 30, 2016 number | Jun. 30, 2014 number | Jun. 30, 2013 number | Dec. 31, 2017 USD ($) number | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Changes in broadcasting licenses [Line Items] |  |  |  |  |  |  |
Beginning of period balance |  |  |  |  | $ 823,195 | $ 807,381 |
Consolidation of a VIE |  |  |  |  | (15,738) | 15,738 |
Acquisition of radio stations |  |  |  |  | 17,174 | 0 |
Disposition of Licenses - EMF Sale |  |  |  |  | 54,661 | 0 |
Acqusition of radio Stations - Beasley Transaction |  |  |  |  | 35,944 | 0 |
Acquisition of radio stations - iHeartMedia Transaction |  |  |  |  | 50,621 | 0 |
Disposition of radio stations - iHeartMedia Transaction |  |  |  |  | 7,462 | 0 |
Assets held for sale |  |  |  |  | (66,014) | 0 |
Deconsolidation of a subsidiary |  |  |  |  | 0 | (36) |
Acquisition - other |  |  |  |  | 0 | 112 |
Dispositions |  |  |  |  | (13,500) | 0 |
Indefinitelived Intangible Assets Acquired Through Exchange |  |  |  |  | 0 | 0 |
Ending period balance |  |  |  |  | $ 2,649,959 | 823,195 |
Market approach for step one goodwill analysis [Abstract] |  |  |  |  |  |  |
Income model years used for the discounted cash flow approach | number |  |  |  |  | 10 |  |
Changes in goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill before cumulative loss on impairment |  |  |  |  |  | 158,333 | $ 158,244
Accumulated loss on impairment |  |  |  |  |  | (125,615) | $ (125,615)
Beginning balance after cumulative loss on impairment |  |  |  |  | $ 32,718 | 32,629 |
Loss on impairment during the year |  |  |  |  | (441) | 0 |
Acquisition |  |  |  |  | 820,961 | 0 |
Dispositions |  |  |  |  | 0 | (3) |
Disposition of radio station - EMF sale |  |  |  |  | 266 | 0 |
Acquisition of radio station - iHeartMedia Transaction |  |  |  |  | 11,700 | 0 |
Disposition of radio station - iHeartMedia Transaction |  |  |  |  | 14 | 0 |
Acquisition of radio station - Beasley Transaction |  |  |  |  | 289 | 0 |
Assets held for sale |  |  |  |  | (2,990) | 0 |
Deconsolidation of a subsidiary |  |  |  |  | 0 | 0 |
Goodwill Acquired Through Exchange |  |  |  |  | 0 | 0 |
Adjustments to acquired goodwill |  |  |  |  | 0 | 92 |
Ending balance |  |  |  |  | 862,000 | 32,718 |
Broadcasting License Impairment Testing [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Discount rates | 9.25% | 9.50% | 9.70% | 9.60% |  |  |
Broadcasting License Impairment Testing [Member] | Maximum [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Operating profit margin ranges of the markets of the Company | 40.00% | 40.00% | 40.00% | 40.00% |  |  |
Long-term revenue growth rate ranges of the markets of the Company | 2.00% | 2.00% | 2.00% | 2.00% |  |  |
Broadcasting License Impairment Testing [Member] | Minimum [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Operating profit margin ranges of the markets of the Company | 19.00% | 14.00% | 25.00% | 25.00% |  |  |
Long-term revenue growth rate ranges of the markets of the Company | 1.00% | 1.00% | 1.50% | 1.50% |  |  |
Goodwill Impairment Testing [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Discount rates | 9.25% | 9.50% | 9.70% | 9.60% |  |  |
Goodwill Impairment Testing [Member] | Maximum [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Long-term revenue growth rate ranges of the markets of the Company | 2.00% | 2.00% | 2.00% | 2.00% |  |  |
Market approach for step one goodwill analysis [Abstract] |  |  |  |  |  |  |
Estimates of market multiples | number | 8 | 8 | 8 | 8 |  |  |
Goodwill Impairment Testing [Member] | Minimum [Member] |  |  |  |  |  |  |
Estimates and assumptions used for impairment test [Line Items] |  |  |  |  |  |  |
Long-term revenue growth rate ranges of the markets of the Company | 1.00% | 1.00% | 1.50% | 1.50% |  |  |
Market approach for step one goodwill analysis [Abstract] |  |  |  |  |  |  |
Estimates of market multiples | number | 7.5 | 7.5 | 7.5 | 7.5 |  |  |
Radio Broadcasting Licences [Member] |  |  |  |  |  |  |
Changes in broadcasting licenses [Line Items] |  |  |  |  |  |  |
Acquisition of radio stations - CBS Radio Merger |  |  |  |  | $ 1,880,400 | $ 0 |

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