REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,008,014	$ 952,753	$ 2,735,719	$ 2,682,867
Revenue from leases	119	236	544	1,375
Revenue, total	1,008,133	952,989	2,736,263	2,684,242
Broadcast Radio
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	448,808	455,103	1,233,636	1,267,493
Networks
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	115,310	116,334	323,952	346,456
Sponsorship and Events
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	50,329	49,500	117,279	120,297
Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	185,807	163,337	512,884	471,664
Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	114,045	102,663	309,190	276,181
Audio and Media Services
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	88,737	60,606	225,275	185,057
Other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4,978	5,210	13,503	15,719
Operating segments \| Multiplatform Group
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	619,425	626,147	1,688,370	1,749,965
Revenue from leases	119	236	544	1,375
Revenue, total	619,544	626,383	1,688,914	1,751,340
Operating segments \| Multiplatform Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	448,808	455,103	1,233,636	1,267,493
Operating segments \| Multiplatform Group \| Networks
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	115,310	116,334	323,952	346,456
Operating segments \| Multiplatform Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	50,329	49,500	117,279	120,297
Operating segments \| Multiplatform Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4,978	5,210	13,503	15,719
Operating segments \| Digital Audio Group
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	301,041	267,222	825,623	751,472
Revenue from leases	0	0	0	0
Revenue, total	301,041	267,222	825,623	751,472
Operating segments \| Digital Audio Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0
Operating segments \| Digital Audio Group \| Networks
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	186,996	164,559	516,433	475,291
Operating segments \| Digital Audio Group \| Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	114,045	102,663	309,190	276,181
Operating segments \| Digital Audio Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0
Operating segments \| Audio & Media Services Group
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	90,050	61,979	229,300	189,134
Revenue from leases	0	0	0	0
Revenue, total	90,050	61,979	229,300	189,134
Operating segments \| Audio & Media Services Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Networks
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	90,050	61,979	229,300	189,134
Operating segments \| Audio & Media Services Group \| Other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Eliminations
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	(2,502)	(2,595)	(7,574)	(7,704)
Revenue from leases	0	0	0	0
Revenue, total	(2,502)	(2,595)	(7,574)	(7,704)
Eliminations \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Eliminations \| Networks
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Eliminations \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Eliminations \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	(1,189)	(1,222)	(3,549)	(3,627)
Eliminations \| Podcast
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Eliminations \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	(1,313)	(1,373)	(4,025)	(4,077)
Eliminations \| Other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 0	$ 0	$ 0	$ 0