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Schedule of Accrued Liabilities (Parenthetical) (Details) - USD ($)
$ in Millions
6 Months Ended
Apr. 30, 2018
Oct. 31, 2017
Accrued Liabilities Current [Abstract]    
Product warranty accrual, warranties issued $ 0.3  
Product warranty accrual, payment and adjustments 0.3  
Gain reserve on service agreements 1.0 $ 1.1
Reserve for performance guarantees $ 0.7 $ 2.2