COMMITMENTS AND CONTINGENCIES - Litigation (Details)												1 Months Ended	12 Months Ended
	Jan. 17, 2024 USD ($)	Dec. 08, 2023 USD ($)	Jul. 19, 2023 USD ($)	Sep. 21, 2022 USD ($) station	Jul. 28, 2021 USD ($)	Oct. 15, 2020 USD ($)	Sep. 02, 2020 USD ($)	Aug. 19, 2020 USD ($)	Jun. 08, 2020 petition	May 22, 2020 USD ($)	Nov. 06, 2018 lawsuit	Dec. 31, 2017 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) station	Oct. 03, 2018 broadcaster
Loss Contingencies [Line Items]
Proposed forfeiture per station						$ 25,000
Number of television stations owned | station														185
Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Proposed forfeiture per station						$ 25,000
Number of television stations owned | station														185
Unfavorable Regulatory Action
Loss Contingencies [Line Items]
Money damages sought				$ 2,700,000			$ 9,000,000					$ 13,000,000
Proposed forfeiture per station							500,000
Issuance of forfeiture penalty upheld					$ 500,000
Additional legal expenses accrued													$ 8,000,000
Number of television stations owned | station				83
Loss contingency, damages sought, total				$ 3,400,000
Estimated liability														$ 3,400,000
Unfavorable Regulatory Action | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Money damages sought				$ 2,700,000			9,000,000					$ 13,000,000
Proposed forfeiture per station							$ 500,000
Issuance of forfeiture penalty upheld					$ 500,000
Additional legal expenses accrued													$ 8,000,000
Number of television stations owned | station				83
Loss contingency, damages sought, total				$ 3,400,000
Estimated liability														3,400,000
Unfavorable Regulatory Action | Minimum
Loss Contingencies [Line Items]
Proposed forfeiture per station				20,000
Unfavorable Regulatory Action | Minimum | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Proposed forfeiture per station				20,000
Unfavorable Regulatory Action | Maximum
Loss Contingencies [Line Items]
Proposed forfeiture per station				26,000
Unfavorable Regulatory Action | Maximum | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Proposed forfeiture per station				$ 26,000
Alleged Inappropriate Transactions Between Sinclair Broadcast Group And Diamond Sports Group
Loss Contingencies [Line Items]
Estimated liability														495,000,000
Loss contingency, allegations, payments received			$ 1,500,000,000
Alleged Inappropriate Transactions Between Sinclair Broadcast Group And Diamond Sports Group | Subsequent Event
Loss Contingencies [Line Items]
Payments for resolve FCC investigation	$ 495,000,000
Loss contingency, settlement, value of claims released	1,500,000,000
Alleged Inappropriate Transactions Between Sinclair Broadcast Group And Diamond Sports Group | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Estimated liability														$ 495,000,000
Loss contingency, allegations, payments received			$ 1,500,000,000
Alleged Inappropriate Transactions Between Sinclair Broadcast Group And Diamond Sports Group | Sinclair Broadcast Group, LLC | Subsequent Event
Loss Contingencies [Line Items]
Payments for resolve FCC investigation	495,000,000
Loss contingency, settlement, value of claims released	$ 1,500,000,000
Breach Of Merger Agreement
Loss Contingencies [Line Items]
Agreement to pay to resolve FCC investigation										$ 48,000,000
Payments for resolve FCC investigation								$ 48,000,000
Compliance plan term										4 years
Number of petitions filed | petition									2
Breach Of Merger Agreement | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Agreement to pay to resolve FCC investigation										$ 48,000,000
Payments for resolve FCC investigation								$ 48,000,000
Compliance plan term										4 years
Number of petitions filed | petition									2
Various Cases Alleging Violation Of Sherman Antitrust Act
Loss Contingencies [Line Items]
Agreement to pay to resolve FCC investigation		$ 48,000,000
Number of new claims | lawsuit											22
Number of other broadcasters | broadcaster															13
Various Cases Alleging Violation Of Sherman Antitrust Act | Sinclair Broadcast Group, LLC
Loss Contingencies [Line Items]
Agreement to pay to resolve FCC investigation		$ 48,000,000
Number of new claims | lawsuit											22
Number of other broadcasters | broadcaster															13