Stock Incentive Plan and Employee Stock Purchase Plan - Summary of Share-based Compensation Charges Included in the Company's Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Share-based compensation expenses
Share-based compensation expense	$ 8,152	$ 10,601	$ 12,289
Cost of revenue
Share-based compensation expenses
Share-based compensation expense	1,244	1,666	1,866
Research and development
Share-based compensation expenses
Share-based compensation expense	1,457	1,773	2,312
Selling and marketing
Share-based compensation expenses
Share-based compensation expense	1,159	2,081	1,390
General and administrative
Share-based compensation expenses
Share-based compensation expense	$ 4,292	$ 5,081	$ 6,721