Description of Business and Basis of Presentation (Details)	9 Months Ended
Mar. 31, 2020
Description of Business And Basis of Presentation [Abstract]
Regional Sports and Entertainment Networks	2
Percentage of ownership of the MSG business that MSGN distributed to stockholders	100.00%
Number of Reportable Segments	1

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration