Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Deferred tax assets:
Accruals and reserves	$ 8,677	$ 3,933
Deferred revenue	1,109	904
Property and equipment		128
Stock-based compensation	16,626	2,542
Net operating loss carryforwards	218,783	68,694
Research and development credits	15,864	12,226
Accrued rewards	1,342
Operating lease liabilities	25,122
Other	514
Total deferred tax assets before valuation allowance	288,037	88,427
Valuation allowance	(107,836)	(85,569)
Deferred tax assets	180,201	2,858
Deferred tax liabilities:
Deferred contract costs	(2,763)	(2,182)
Property and equipment	(3,133)
Intangible assets	(107,631)
Operating right of use assets	(18,551)
Convertible notes	(57,213)
Other		(676)
Total deferred tax liabilities	(189,291)	(2,858)
Net deferred tax assets		$ 0
Net deferred tax (liabilities)	$ (9,090)