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New Accounting Standards (Details) - USD ($)
$ in Millions
9 Months Ended
Aug. 02, 2020
Nov. 04, 2019
ASU 2016-02    
New accounting standards    
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true  
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Fixed List] us-gaap:AccountingStandardsUpdate201602CumulativeEffectPeriodOfAdoptionMember  
Lease, Practical Expedients, Package [true false] true  
Lease, Practical Expedient, Use of Hindsight [true false] false  
Right of use asset   $ 5.1
Lease liability   $ 5.1
ASU 2020-04    
New accounting standards    
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true  
ASU 2016-13    
New accounting standards    
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] false  
ASU 2018-15    
New accounting standards    
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] false  
ASU 2019-12    
New accounting standards    
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] false