Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share - Schedule of Anti-dilutive Securities Excluded from Computation of Loss Per Share (Detail)

v3.21.1
Net Loss Per Share - Schedule of Anti-dilutive Securities Excluded from Computation of Loss Per Share (Detail) - shares
shares in Thousands
 12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive potentially outstanding common shares 2,364 1,351
Stock Options [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive potentially outstanding common shares 2,233 1,290
Restricted Stock Units [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive potentially outstanding common shares 55 51
Deferred Stock Units [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive potentially outstanding common shares 76 10