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STOCK-BASED COMPENSATION PLANS - Summary of Activity For Unvested Performance Share Awards (Details) - Performance share awards - $ / shares
shares in Thousands
12 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Restricted Stock Units      
Unvested at the beginning of the period (in shares) 317,850    
Granted (in shares) 74,800    
Vested (in shares) (107,198)    
Forfeited (in shares) (3,301)    
Unvested at the end of the period (in shares) 282,151 317,850  
Weighted-Average Fair Value at Date of Grant      
Unvested at the beginning of the period (in dollars per share) $ 33.95    
Weighted-average fair value at date of grant 54.52 $ 38.89 $ 32.84
Vested (in dollars per share) 30.10    
Forfeited (in dollars per share) 47.96    
Unvested at the end of the period (in dollars per share) $ 40.71 $ 33.95