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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, 2018 | Dec. 31, 2017
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,565,968 | $ 2,549,913
Accumulated Amortization | (2,112,684) | (1,999,857)
Transit, street furniture and other outdoor contractual rights |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 528,185 | 548,918
Accumulated Amortization | (440,228) | (440,284)
Customer / advertiser relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,249,128 | 1,226,314
Accumulated Amortization | (1,208,056) | (1,133,251)
Talent contracts |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 164,933 | 161,962
Accumulated Amortization | (148,578) | (138,728)
Representation contracts |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 77,508 | 77,507
Accumulated Amortization | (70,829) | (62,753)
Permanent easements |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 163,317 | 162,920
Accumulated Amortization | 0 | 0
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 382,897 | 372,292
Accumulated Amortization | $ (244,993) | $ (224,841)

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