Share-Based Compensation Share-based Compensation - Narrative (Details) shares in Thousands	12 Months Ended
	Jun. 30, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans	2
Employee Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, Number of Shares Authorized (in shares)	12,500
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	NQSOs under the Employee Stock Plan must be granted with an exercise price of not less than the fair market value of a share of the Company’s Class A Common Stock on the date of grant and must expire no later than 10 years from the date of grant (or up to one additional year in the case of the death of a holder).
Non Employee Director Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, Number of Shares Authorized (in shares)	400
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	NQSOs under the Non-Employee Director Plan must be granted with an exercise price of not less than the fair market value of a share of the Company’s Class A Common Stock on the date of grant and must expire no later than 10 years from the date of grant (or up to one additional year in the case of the death of a holder).
Non-Performance Vesting [Member] | Non Employee Director Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Awards, Settlement Description	on the first business day after ninety days from the date the director’s service on the Board of Directors ceases or, if earlier, upon the director’s death.