REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 884,121	$ 807,010
Revenue from leases	79	91
Revenue, total	884,200	807,101
Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	361,435	340,736
Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	97,245	99,463
Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	27,988	28,621
Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	178,737	160,120
Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	147,194	116,036
Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	64,806	57,967
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,716	4,067
Operating segments \| Multiplatform Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	493,384	472,887
Revenue from leases	79	91
Revenue, total	493,463	472,978
Operating segments \| Multiplatform Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	361,435	340,736
Operating segments \| Multiplatform Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	97,245	99,463
Operating segments \| Multiplatform Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	27,988	28,621
Operating segments \| Multiplatform Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Multiplatform Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Multiplatform Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Multiplatform Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,716	4,067
Operating segments \| Digital Audio Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	327,142	277,287
Revenue from leases	0	0
Revenue, total	327,142	277,287
Operating segments \| Digital Audio Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Digital Audio Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Digital Audio Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Digital Audio Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	179,948	161,251
Operating segments \| Digital Audio Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	147,194	116,036
Operating segments \| Digital Audio Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Digital Audio Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	66,581	59,323
Revenue from leases	0	0
Revenue, total	66,581	59,323
Operating segments \| Audio & Media Services Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Operating segments \| Audio & Media Services Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	66,581	59,323
Operating segments \| Audio & Media Services Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(2,986)	(2,487)
Revenue from leases		0
Revenue, total	(2,986)	(2,487)
Eliminations \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Eliminations \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Eliminations \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Eliminations \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1,211)	(1,131)
Eliminations \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Eliminations \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1,775)	(1,356)
Eliminations \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0