Fair Value (Narrative) (Details) - Customer	9 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Noncontrolling interests, description	The final put right held by the sports network minority shareholder will become exercisable in the first quarter of fiscal 2022. The put right held by the Credible minority shareholder will become exercisable in fiscal 2025
Accounts Receivable | Credit Concentration Risk
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of major customers	1	0
Accounts Receivable | Credit Concentration Risk | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Concentration risk percentage	10.00%	10.00%