The Company and Significant Accounting Policies - Government Grants (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Government Grants, Reduction Recorded To Interest Expense	$ 700,000	$ 700,000	$ 2,200,000	$ 4,100,000
Government Grants, Reduction Recorded To Operating Expenses	0.0	1,800,000	3,700,000	2,000,000.0
Government Grants, Reduction Recorded To Property, Plant And Equipment	$ 0	$ 0	$ 100,000	$ 1,300,000