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Other Employee Benefit Plans (Details)
12 Months Ended
Oct. 31, 2020
CAD ($)
Oct. 31, 2020
USD ($)
Nov. 02, 2019
CAD ($)
Nov. 02, 2019
USD ($)
Nov. 03, 2018
CAD ($)
Nov. 03, 2018
USD ($)
Defined Contribution Pension Plan Canada            
Schedule of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]            
Maximum total employee and employer contribution percentage 18.00% 18.00%        
Maximum total employee and employer contribution amount $ 27,830 $ 20,895        
Required employer contribution percent 1.00% 1.00%        
Employer matching percentage for eligible employee contribution 50.00% 50.00%        
Percentage of employee contribution with employer matching contribution 6.00% 6.00%        
Employer matching contributions $ 7,000,000.0 $ 5,300,000 $ 5,200,000 $ 3,900,000 $ 5,100,000 $ 3,800,000
Defined Contribution Profit Sharing Plan            
Schedule of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]            
Employer matching percentage for eligible employee contribution 50.00% 50.00%        
Percentage of employee contribution with employer matching contribution 8.00% 8.00%        
Employer matching contributions   $ 7,500,000   $ 5,900,000   $ 5,800,000
Maximum employee contribution percentage of pre-tax compensation 60.00% 60.00%        
Employer discretionary contribution amount   $ 0