The Company and Significant Accounting Policies - Basis of Preparation (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property and equipment purchased but not yet paid (fiscal year 2019 amount is presented as revised, see Note 1)	$ 15,911	$ 32,738
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property and equipment purchased but not yet paid (fiscal year 2019 amount is presented as revised, see Note 1)		18,100
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property and equipment purchased but not yet paid (fiscal year 2019 amount is presented as revised, see Note 1)		$ 50,800