REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 977,171	$ 933,562	$ 1,861,292	$ 1,740,572
Revenue from leases	68	91	147	182
Revenue, total	977,239	933,653	1,861,439	1,740,754
Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	397,588	395,789	759,023	736,525
Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	103,689	107,813	200,934	207,276
Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	30,532	36,485	58,520	65,106
Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	200,808	188,407	379,545	348,527
Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	162,067	134,296	309,261	250,332
Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	78,697	66,352	143,503	124,319
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,790	4,420	10,506	8,487
Operating segments \| Multiplatform Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	535,599	544,507	1,028,983	1,017,394
Revenue from leases	68	91	147	182
Revenue, total	535,667	544,598	1,029,130	1,017,576
Operating segments \| Multiplatform Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	397,588	395,789	759,023	736,525
Operating segments \| Multiplatform Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	103,689	107,813	200,934	207,276
Operating segments \| Multiplatform Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	30,532	36,485	58,520	65,106
Operating segments \| Multiplatform Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Multiplatform Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,790	4,420	10,506	8,487
Operating segments \| Digital Audio Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	364,080	323,856	691,222	601,143
Revenue from leases	0	0	0	0
Revenue, total	364,080	323,856	691,222	601,143
Operating segments \| Digital Audio Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	202,013	189,560	381,961	350,811
Operating segments \| Digital Audio Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	162,067	134,296	309,261	250,332
Operating segments \| Digital Audio Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Digital Audio Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	80,465	67,736	147,046	127,059
Revenue from leases	0	0	0	0
Revenue, total	80,465	67,736	147,046	127,059
Operating segments \| Audio & Media Services Group \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating segments \| Audio & Media Services Group \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	80,465	67,736	147,046	127,059
Operating segments \| Audio & Media Services Group \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(2,973)	(2,537)	(5,959)	(5,024)
Revenue from leases	0	0	0	0
Revenue, total	(2,973)	(2,537)	(5,959)	(5,024)
Eliminations \| Broadcast Radio
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Eliminations \| Networks
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Eliminations \| Sponsorship and Events
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Eliminations \| Digital, excluding Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1,205)	(1,153)	(2,416)	(2,284)
Eliminations \| Podcast
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0	0	0
Eliminations \| Audio and Media Services
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(1,768)	(1,384)	(3,543)	(2,740)
Eliminations \| Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 0	$ 0	$ 0	$ 0