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	9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
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	7,072	11,960
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	5,905	11,706
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	1,167	192
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		62