Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Stock Unit Activity (Detail)

v3.21.1
Stockholders' Equity - Summary of Stock Unit Activity (Detail)
12 Months Ended
Jan. 31, 2021
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Unvested Grant-Date Fair Value at beginning of period | $ / shares $ 2.30
Granted Grant-Date Fair Value | $ / shares 1.51
Vested Grant-Date Fair Value | $ / shares 2.65
Forfeited Grant-Date Fair Value | $ / shares 1.83
Unvested Grant-Date Fair value at end of period | $ / shares $ 1.87
Restricted Stock Units Deferred Stock Units and Performance Stock Units [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Unvested Number of Shares at beginning of period | shares 1,144,953
Number of Shares,Granted | shares 790,671
Number of Shares,Vested | shares (462,300)
Number of Shares,Forfeited | shares (301,455)
Unvested Number of Shares at end of period | shares 1,171,869