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Segment Disclosure - Additional information (Detail)
12 Months Ended
Oct. 31, 2022
segment
customer
Oct. 31, 2021
customer
Oct. 31, 2020
customer
Apr. 30, 2022
chiefExecutiveOfficer
Segment Reporting Information [Line Items]        
Number of co-chief executive officers who act as chief operating decision makers | chiefExecutiveOfficer       2
Number of reportable segments | segment 2      
Customer Concentration Risk | Revenues        
Segment Reporting Information [Line Items]        
Number of major customers | customer 1 1 1  
Customer Concentration Risk | Revenues | Customer One        
Segment Reporting Information [Line Items]        
Percentage of revenues contributed by major customers 11.70% 10.60% 12.40%