Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
Deferred tax assets:
Accruals and reserves	$ 17,888	$ 13,966
Capitalized research and development	160,755	120,882
Deferred revenue	28	1,084
Stock-based compensation	19,532	17,093
Net operating and other loss carryforwards	280,004	360,592
Research and development credits	99,626	85,910
Accrued rewards	154	40
Operating lease liabilities	17,874	19,139
Other	3,660	598
Total deferred tax assets before valuation allowance	599,521	619,304
Valuation allowance	(503,692)	(494,424)
Deferred tax assets	95,829	124,880
Deferred tax liabilities:
Deferred contract costs	(6,603)	(5,868)
Property and equipment	(22,253)	(15,853)
Intangible assets	(53,280)	(68,218)
Operating right of use assets	(14,066)	(14,992)
Other reserve	0	(20,399)
Total deferred tax liabilities	(96,202)	(125,330)
Net deferred tax (liabilities)	$ (373)	$ (450)