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Stock Compensation - Summary of Nonvested Restricted Stock Units Outstanding (Detail)
12 Months Ended
Oct. 31, 2020
$ / shares
shares
Restricted Stock Awards [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted | shares 1,103,568
Forfeited | shares (420,651)
Nonvested, end of year | shares 682,917
Granted | $ / shares $ 8.64
Forfeited | $ / shares 11.68
Nonvested, end of year | $ / shares $ 6.76
Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Nonvested, beginning of year | shares 1,394,205
Granted | shares 307,127
Vested | shares (472,848)
Forfeited | shares (308,223)
Nonvested, end of year | shares 920,261
Nonvested, beginning of year | $ / shares $ 11.94
Granted | $ / shares 10.81
Vested | $ / shares 12.43
Forfeited | $ / shares 11.91
Nonvested, end of year | $ / shares $ 11.42