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EMPLOYEE RETIREMENT PLANS - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Oct. 31, 2016
Retirement Benefits [Abstract]      
Plan expenses $ 18.8 $ 17.9 $ 17.0
Projected benefit obligation 36.3 41.4  
Amount of net liability recognized 5.1 4.6  
Accumulated benefit obligation 36.3 41.4  
Fair value of the plan assets 33.2 35.2  
Funded status of plans 3.1 6.2  
Net expense recognized $ 0.2 $ 1.5 $ 1.2