Net Loss Per Share Attributable To Common Stockholders - Summary of Potentially Dilutive Securities Excluded from Diluted Net Loss Per Share Calculation (Details) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share	7,728	10,160	62,588
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share	6,552	9,019	10,027
Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share	1,176	1,141
Warrants to Purchase Common Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share			63
Convertible Redeemable Preferred Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share			52,435
Warrants to Purchase Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities, potentially dilutive securities excluded from calculation of diluted net loss per share			63