Income Taxes - Difference between Income Taxes Computed At Federal Statutory Rate and (Benefit from) Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Expected benefit at U.S. federal statutory rate	$ (5,528)	$ (46,813)	$ (69,443)
State income taxes, net of federal benefit	9,134	8,087	13,509
Stock-based compensation	24,300	4,253	(93,705)
Research and development tax credits	(24,039)	(19,974)	(22,061)
Change in valuation allowance related to acquisition	0	(126)	(2,831)
Change in valuation allowance	4,943	48,321	174,477
Restructuring	(13,769)	0	0
Unrecognized tax benefit	(628)	(390)	(10,975)
Acquisition-related costs	0	0	553
Foreign rate differential	6,658	4,942	5,496
Other	1,488	2,508	662
Provision for (benefit from) income taxes	$ 2,559	$ 808	$ (4,318)