GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS - Radio Market Reporting Units (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 30, 2022	Sep. 30, 2022
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Impairment loss, goodwill		$ 4,325
Radio Market Reporting Units [Member]
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Impairment loss, goodwill	$ 4,300
Discount Rate	9.50%	9.50%
Year 1 Market Revenue Growth Rate Range		(0.30%)
Long-term Market Revenue Growth Rate Range (Years 6 - 10)		1.00%
Operating Profit Margin Range		33.40%
Minimum | Radio Market Reporting Units [Member]
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Year 1 Market Revenue Growth Rate Range	(2.50%)
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	0.70%
Operating Profit Margin Range	19.50%
Maximum | Radio Market Reporting Units [Member]
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Year 1 Market Revenue Growth Rate Range	1.50%
Long-term Market Revenue Growth Rate Range (Years 6 - 10)	1.00%
Operating Profit Margin Range	32.90%