GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Valuation Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Goodwill [Line Items]
Gross goodwill	$ 378,046	$ 378,046
Accumulated impairment losses	(181,621)	(181,621)
Net goodwill	196,425	196,425
Intersegment transfers (out) in	0
Radio Broadcasting
Goodwill [Line Items]
Gross goodwill	154,967	154,967
Accumulated impairment losses	(124,988)	(124,988)
Net goodwill	29,979	29,979
Intersegment transfers (out) in	0
Reach Media
Goodwill [Line Items]
Gross goodwill	30,468	30,468
Accumulated impairment losses	(16,114)	(16,114)
Net goodwill	14,354	14,354
Intersegment transfers (out) in	0
Digital
Goodwill [Line Items]
Gross goodwill	26,912	27,567
Accumulated impairment losses	(20,345)	(20,345)
Net goodwill	6,567	7,222
Intersegment transfers (out) in	(655)
Cable Television
Goodwill [Line Items]
Gross goodwill	165,699	165,044
Accumulated impairment losses	(20,174)	(20,174)
Net goodwill	145,525	$ 144,870
Intersegment transfers (out) in	$ 655