REVENUE - Summary Of Company's Revenue Disaggregated By Primary Revenue (Detail) - 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]
Revenue	$ 2,031,790	$ 1,219,547	$ 5,542,708	$ 4,021,173
Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	735,205	479,748	2,314,691	1,173,125
Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	899,761	367,064	2,116,879	1,758,928
Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	429,207	385,619	1,185,964	1,117,008
Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(32,383)	(12,884)	(74,826)	(27,888)
Eliminations [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Eliminations [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Eliminations [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Media Rights [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	497,779	349,547	1,583,389	955,393
Media Rights [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	408,816	261,545	1,274,891	632,277
Media Rights [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	88,963	88,002	308,498	323,116
Media Rights [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Platforms and Services [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	12,874	13,996	36,744	43,478
Technology Platforms and Services [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Platforms and Services [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	12,874	13,996	36,744	43,478
Technology Platforms and Services [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Media Production, Distribution and Content [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	148,416	155,419	394,550	442,636
Media Production, Distribution and Content [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	14,175	1,180	18,266	4,816
Media Production, Distribution and Content [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	87,144	82,648	205,676	216,656
Media Production, Distribution and Content [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	47,097	71,591	170,608	221,164
Events and Performance [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	983,607	377,993	2,461,590	1,662,122
Events and Performance [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	272,827	195,575	895,629	486,444
Events and Performance [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	710,780	182,418	1,565,961	1,175,678
Events and Performance [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Talent Representation and Licensing [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	341,488	248,837	897,884	704,329
Talent Representation and Licensing [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	39,387	21,448	125,905	49,588
Talent Representation and Licensing [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Talent Representation and Licensing [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	302,101	227,389	771,979	654,741
Marketing [Member] | Reportable Subsegments [Member]
Disaggregation of Revenue [Line Items]
Revenue	80,009	86,639	243,377	241,103
Marketing [Member] | Reportable Subsegments [Member] | Owned Sports Properties [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Marketing [Member] | Reportable Subsegments [Member] | Events, Experiences & Rights [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Marketing [Member] | Reportable Subsegments [Member] | Representation [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 80,009	$ 86,639	$ 243,377	$ 241,103