DEBT - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	May 31, 2024	Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Other current liabilities		$ 51,223,000	$ 51,223,000	$ 97,190,000
Common Class B [Member]
Debt Instrument [Line Items]
Common stock, par value		$ 0.00001	$ 0.00001	$ 0.00001
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		$ 2,300,000,000	$ 2,300,000,000	$ 2,200,000,000
Line of credit		200,000,000	200,000,000
Additional borrowing capacity	$ 50,000,000		150,000,000
Rapayment of line of credit			75,000,000
2014 Credit Facilities [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		75,000,000	75,000,000	0
2014 Credit Facilities [Member] | Letter of credit
Debt Instrument [Line Items]
Outstanding letters of credit		28,500,000	28,500,000	28,900,000
Zuffa Credit Facilities [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		2,700,000,000	2,700,000,000	2,700,000,000
Line of credit		205,000,000	205,000,000
Additional borrowing capacity			150,000,000
Rapayment of line of credit			150,000,000
Letters of credit maximum face amount		40,000,000	40,000,000
Zuffa Credit Facilities [Member] | Letter of credit
Debt Instrument [Line Items]
Outstanding letters of credit		10,000,000	10,000,000	0
Zuffa Credit Facilities [Member] | Incremental term loan
Debt Instrument [Line Items]
Outstanding letters of credit		0	0	0
OLE Revolving Credit Agreement [Member] | Letter of credit
Debt Instrument [Line Items]
Outstanding letters of credit		0	0	0
Ole Revolving Credit Covenant [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		0	0	0
Margin Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 2,500,000,000	2,500,000,000
Additional borrowing capacity			$ 175,000,000
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) [Member]
Line of credit interest rate		3.00%
Debt instrument maturity date			Sep. 13, 2029
TKO Operating Company, LLC [Member]
Debt Instrument [Line Items]
Common Unit, Issued		6.1	6.1
2014 Credit Facilities and Zuffa Credit Facilities [Member]
Debt Instrument [Line Items]
Debt instrument fair value		$ 4,900,000,000	$ 4,900,000,000	5,000,000,000
2014 Credit Facilities and Zuffa Credit Facilities [Member] | EDR Endeavor Group Holdings [Member]
Debt Instrument [Line Items]
Cash held for long term deferred income taxes				40,500,000
Long term deferred tax benefit		504,900,000	504,900,000	486,200,000
Prepaid taxes		129,100,000	129,100,000
Income taxe payable				22,000,000
Tax receivable agreements liability		869,000,000	869,000,000	990,500,000
Other long-term liabilities		745,000,000	745,000,000	834,300,000
Other current liabilities		$ 124,000,000	$ 124,000,000	$ 156,200,000