Balance Sheet Components - Stock Rotation Accrual (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Stock Rotation Accrual Increae (Decrease) [Roll Forward]
Beginning balance	$ 1,921	$ 1,750	$ 1,871
Addition	9,441	5,267	2,714
Utilization	(8,004)	(5,096)	(2,835)
Ending balance	$ 3,358	$ 1,921	$ 1,750