XML 131 R114.htm IDEA: XBRL DOCUMENT v3.21.2
Loss Per Share - Additional Information (Detail) - shares
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Earnings Per Share [Abstract]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 0 0