Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Related Party Transaction [Line Items]
Outstanding purchase order	$ 193.6
Affiliated
Related Party Transaction [Line Items]
Outstanding purchase order	$ 68.9
Ablecom Technology
Related Party Transaction [Line Items]
Products purchased percent	95.50%	96.30%	97.00%
Ablecom Technology | Affiliated
Related Party Transaction [Line Items]
Outstanding purchase order	$ 23.2	$ 31.0
Ablecom Technology | Steve Liang and other family members | Management and immediate family member of management
Related Party Transaction [Line Items]
Ownership percentage	28.80%
Ablecom Technology | Charles Liang and wife | Investee
Related Party Transaction [Line Items]
Ownership percentage	10.50%
Compuware
Related Party Transaction [Line Items]
Outstanding purchase order	$ 45.7	$ 70.6
Compuware | Ablecom Technology | Affiliated
Related Party Transaction [Line Items]
Ownership percentage	11.70%