COMMITMENTS AND CONTINGENCIES - Changes in the Rules on Television Ownership (Details) - station	12 Months Ended
Dec. 31, 2020	Sep. 06, 2016
Loss Contingencies [Line Items]
FCC nation ownership cap, % of domestic households reached		39.00%
Number of television stations owned	188
FCC Consent Decree Settlement
Loss Contingencies [Line Items]
Number of television stations owned	34
Loss contingency, % of domestic households reached, UHR discount applied	25.00%
LMA
Loss Contingencies [Line Items]
Number of separately owned television stations having programming agreement	2
Number of stations that programs substantial portions of the broadcast day and sells advertising time to programming segments	1

FCC National Ownership Cap, Percentage of Domestic Households Reached

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Loss Contingency, Percentage of Domestic Households Reached, UHF Discount Applied

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Represents the number of separately owned television stations which have programming agreement.

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Represents the number of stations which programs substantial portions of the broadcast day and sells advertising time during programming segments.

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Represents the number of television stations owned by the entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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