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
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)