Pension Plans and Other Postretirement Benefit Plans - Multiemployer Defined Benefit Pension Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
The Madison Square Garden Company
Defined Benefit Plan Disclosure [Line Items]
Company Contributions	$ 6,944	$ 6,354	$ 5,982
All Other Multiemployer Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Company Contributions	9,143	8,643	7,919
All Other Multiemployer Defined Benefit Pension Plans \| The Madison Square Garden Company
Defined Benefit Plan Disclosure [Line Items]
Company Contributions	$ 3,792	$ 3,308	3,198
Pension Fund of Local No. 1 of I.A.T.S.E. \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
EIN	136414973
Pension Plan Number	001
PPA Zone Status	Green	Green
FIP/RP Status Pending / Implemented	No
Surcharge Imposed	No
Expiration Date of CBA	Sep. 30, 2029
Pension Fund of Local No. 1 of I.A.T.S.E. \| Pension Plans \| The Madison Square Garden Company
Defined Benefit Plan Disclosure [Line Items]
Company Contributions	$ 3,152	$ 3,046	$ 2,784

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA".

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Employer Identification Number (EIN) or Tax Identification Number (TIN) assigned by Internal Revenue Service (IRS) for multiemployer pension plan determined to be individually significant, in nine-digit numeric format.

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