Short-Term Investments - Schedule of Gross Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Schedule Of Available For Sale Securities [Line Items]
Fair value	$ 252,419	$ 246,040
Unrealized losses	(70)	(61)
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Fair value	189,301	152,485
Unrealized losses	(65)	(55)
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Fair value	45,190	85,466
Unrealized losses	(2)	(5)
Asset Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Fair value	17,928	8,089
Unrealized losses	$ (3)	$ (1)