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GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2018
Jul. 31, 2017
Jul. 31, 2018
Jul. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 3.8 $ 3.1 $ 11.5 $ 10.0
Amortization expense, 2018 15.4   15.4  
Future amortization expense, 2019 15.1   15.1  
Future amortization expense, 2020 14.5   14.5  
Future amortization expense, 2021 12.9   12.9  
Future amortization expense, 2022 $ 8.9   $ 8.9