Stockholders' Equity - Summary of Stock Option Activities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Number of Shares Outstanding
Beginning balance	10,027
Options granted	2,937
Options exercised	(3,291)
Options cancelled/forfeited/expired	(654)
Ending balance	9,019	10,027
Vested and expected to vest at June 30, 2020	8,135
Vested and exercisable at June 30, 2020	2,584
Weighted average average exercise price per share
Weighted average average exercise price per share, Beginning balance	$ 5.90
Weighted average average exercise price per share, Options granted	18.78
Weighted average average exercise price per share, Options exercised	4.09
Weighted average average exercise price per share, Options cancelled/forfeited/expired	8.83
Weighted average average exercise price per share, Ending balance	10.53	$ 5.90
Weighted average average exercise price per share, Vested and expected to vest at June 30, 2020	10.34
Weighted average average exercise price per share, Vested and exercisable at June 30, 2020	$ 6.23
Weighted average remaining contractual term (in years)
Weighted average remaining contractual term (in years)	8 years 3 months 3 days	8 years 4 months 13 days
Vested and expected to vest at June 30, 2020	8 years 2 months 15 days
Vested and exercisable at June 30, 2020	7 years 1 month 13 days
Aggregate intrinsic value	$ 718,563	$ 75,223
Vested and expected to vest at June 30, 2020	649,756
Vested and exercisable at June 30, 2020	$ 217,024