Description of Business and Basis of Presentation (Details)	12 Months Ended
Jun. 30, 2020	Apr. 17, 2020	Sep. 21, 2015
Description of Business And Basis of Presentation [Abstract]
Percentage of ownership of business distributed to stockholders in Spin Off		100.00%	100.00%
Number of reportable segments	1
Regional Sports and Entertainment Networks	2

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