GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS - Additional Information (Details) $ in Thousands			3 Months Ended							12 Months Ended
	Oct. 01, 2023 USD ($)	Oct. 01, 2022 USD ($)	Dec. 31, 2023 USD ($) item	Sep. 30, 2023 USD ($) item	Jun. 30, 2023 USD ($) item	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) segment item	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Number of reporting units in each of other business segments | segment										3
Indefinite-Lived License Agreements			$ 375,296				$ 488,419			$ 375,296	$ 488,419
Term of radio broadcast station license										8 years
Renewal term of radio broadcast station license										8 years
Goodwill, impairment loss										$ 0	7,240
Goodwill			216,599				216,599			$ 216,599	$ 216,599	$ 223,402
Number of reportable segments | segment										4	4
Amortization of Intangible Assets										$ 1,100	$ 3,700
Radio Broadcasting Segment
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Number of radio markets | item										13
Impairment of indefinite lived intangible assets										$ 129,300
Goodwill, impairment loss										0	7,240
Goodwill			29,979				29,979			29,979	29,979	$ 36,782
Atlanta
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Goodwill, impairment loss									$ 4,300
Philadelphia market
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Goodwill, impairment loss							$ 2,900
Radio broadcasting licenses
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Indefinite-Lived License Agreements			375,300							375,300
Impairment of indefinite lived intangible assets	$ 0	$ 7,400	$ 5,000	$ 85,400	$ 22,100	$ 16,800		$ 15,500	$ 10,600	129,278	33,443
Radio broadcasting licenses five markets
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Impairment of indefinite lived intangible assets					$ 22,100
Radio broadcasting licenses five markets | Radio Broadcasting Segment
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Number of radio markets | item					5
Radio broadcasting licenses Ten markets
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Number of radio markets | item				10
Impairment of indefinite lived intangible assets				$ 85,400
Radio Broadcasting Licenses Three Markets [Member]
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Number of radio markets | item			3
Impairment of indefinite lived intangible assets			$ 5,000
Goodwill and Radio Broadcasting Licenses
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Goodwill and intangible assets impairment										$ 129,300	$ 40,700