Summary of Significant Accounting Policies - Concentrations (Details) - customer	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Revenue
Number of customers	0	0
Revenue | Customer Concentration Risk | Minimum
Concentration percentage	10.00%	10.00%
Accounts receivable | Customer Concentration Risk | Customer A
Concentration percentage	11.00%
Content costs from vendors | Supplier Concentration | Vendor A
Concentration percentage	21.00%	19.00%
Content costs from vendors | Supplier Concentration | Vendor B
Concentration percentage	12.00%	13.00%