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Income Taxes (Details) - USD ($)
3 Months Ended 12 Months Ended
Jan. 31, 2020
Oct. 31, 2020
Income Taxes [Line Items]    
Effective blended tax rate 31.30%  
Uncertain tax positions $ 0  
Accrued interest and penalties associated with uncertain tax positions $ 0  
Forecast    
Income Taxes [Line Items]    
Effective blended tax rate   32.30%