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STOCK-BASED COMPENSATION PLANS - Narrative (Details)
$ in Thousands
12 Months Ended
Sep. 16, 2016
Oct. 31, 2017
USD ($)
shares
Oct. 31, 2016
shares
Oct. 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock split, conversion ratio 2      
Common stock available for future grants (in shares) | shares   5,517,897    
Stock option awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares) | shares   554,364    
Compensation cost not yet recognized | $   $ 3,129    
Period for recognition   1 year 11 months 26 days    
Stock option awards | Non-employee directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Requisite service period for non-employee director after which fair value of options granted is fully expensed on the date of grant   10 years    
Stock option awards | Certain employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Term of award   10 years    
Stock option awards | Certain members of the Board Of Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Term of award   10 years    
Restricted stock and restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost not yet recognized | $   $ 2,953    
Period for recognition   2 years 1 month 23 days    
Performance share awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost not yet recognized | $   $ 5,108    
Performance goal period   3 years    
Period for recognition   1 year 8 months 1 day    
Unrestricted common stock awards | Certain members of the Board Of Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares) | shares   11,412 12,320 13,360