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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Apr. 30, 2020
Oct. 31, 2019
Income Taxes [Line Items]        
Effective income tax rate reconciliation 24.50% 25.90%    
Effective income tax rate, excluding discrete items 24.00% 25.40%    
Deferred income taxes $ 79,301     $ 74,132
Increase (Decrease) in Deferred Income Taxes $ 5,200      
Scenario, Forecast        
Income Taxes [Line Items]        
Effective income tax rate, excluding discrete items     24.00%