GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS - Goodwill Valuation Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
GOODWILL AND RADIO BROADCASTING LICENSES
Gross goodwill	$ 378,079	$ 378,079
Additions	0	0
Impairments	0	(15,900)
Accumulated impairment losses	(154,207)	(138,307)
Assets held for sale		(470)
Audacy asset exchange	(470)
Net goodwill	223,402	223,402
Radio Broadcasting Segment [Member]
GOODWILL AND RADIO BROADCASTING LICENSES
Gross goodwill	155,000	155,000
Additions	0	0
Impairments	0	(15,900)
Accumulated impairment losses	(117,748)	(101,848)
Assets held for sale		(470)
Audacy asset exchange	(470)
Net goodwill	36,782	36,782
Reach Media Segment [Member]
GOODWILL AND RADIO BROADCASTING LICENSES
Gross goodwill	30,468	30,468
Additions	0	0
Impairments	0	0
Accumulated impairment losses	(16,114)	(16,114)
Assets held for sale		0
Audacy asset exchange	0
Net goodwill	14,354	14,354
Digital Segment [Member]
GOODWILL AND RADIO BROADCASTING LICENSES
Gross goodwill	27,567	27,567
Additions	0	0
Impairments	0	0
Accumulated impairment losses	(20,345)	(20,345)
Assets held for sale		0
Audacy asset exchange	0
Net goodwill	7,222	7,222
Cable Television Segment [Member]
GOODWILL AND RADIO BROADCASTING LICENSES
Gross goodwill	165,044	165,044
Additions	0	0
Impairments	0	0
Accumulated impairment losses	0	0
Assets held for sale		0
Audacy asset exchange	0
Net goodwill	$ 165,044	$ 165,044