Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Related Party Transaction [Line Items]
Outstanding purchase order	$ 381.1		$ 381.1
Affiliated
Related Party Transaction [Line Items]
Outstanding purchase order	$ 122.2		$ 122.2
Ablecom Technology
Related Party Transaction [Line Items]
Related party, product sold percent	95.10%	96.00%	95.30%	95.50%
Ablecom Technology | Affiliated
Related Party Transaction [Line Items]
Outstanding purchase order	$ 60.0		$ 60.0		$ 31.0
Ablecom Technology | Charles Liang and wife | Investee
Related Party Transaction [Line Items]
Ownership percentage	10.50%		10.50%
Ablecom Technology | Steve Liang and other family members | Management and immediate family member of management
Related Party Transaction [Line Items]
Ownership percentage	28.80%		28.80%
Compuware
Related Party Transaction [Line Items]
Outstanding purchase order	$ 111.2		$ 111.2		$ 70.6