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PROPERTY, PLANT AND EQUIPMENT, INTANGIBLE ASSETS AND GOODWILL - Schedule of Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,348,006 | $ 1,868,547
Accumulated Amortization | (171,466) | (1,668,125)
Customer / advertiser relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,629,236 | 1,326,636
Accumulated Amortization | (114,280) | (1,278,885)
Talent contracts |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 375,399 | 164,933
Accumulated Amortization | (33,739) | (148,578)
Trademarks and tradenames |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 321,977 | 0
Accumulated Amortization | (21,661) | 0
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 21,394 | 376,978
Accumulated Amortization | $ (1,786) | $ (240,662)

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