Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	[1]	$ 424,197	$ 429,954	$ 835,263	$ 799,898
Event-related
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	[2]	176,756	177,826	322,211	306,096
Media rights
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	[3]	123,544	139,579	257,799	269,345
Sponsorship, signage and suite licenses
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers		113,701	101,402	198,302	176,032
League distributions and other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers		$ 10,196	$ 11,147	$ 56,951	$ 48,425

[1] Includes revenues from related parties of $67,704 and $86,944 for the three months ended March 31, 2025 and 2024, respectively, and $156,825 and $173,419 for the nine months ended March 31, 2025 and 2024, respectively.

[2] Consists of (i) ticket sales and other ticket-related revenues, and (ii) food, beverage and merchandise sales at The Garden.

[3] Consists of (i) local media rights fees, (ii) revenue from the distribution through league-wide national television contracts, and (iii) other local radio rights fees. Revenues from media rights for the three and nine months ended March 31, 2025 reflect a reduction in expected revenues from local media rights fees for the 2024-25 season as a result of proposed amendments to the Knicks’ and Rangers’ local media rights agreements with MSG Networks contemplated in the Transaction Support Agreement (as defined below).