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Schedule of Accrued Liabilities (Parenthetical) (Details) - USD ($)
$ in Millions
9 Months Ended
Jul. 31, 2017
Oct. 31, 2016
Accrued Liabilities Current [Abstract]    
Product warranty accrual, warranties issued $ 0.5  
Product warranty accrual, payment and adjustments 0.8  
Loss reserve on service agreements 0.9 $ 2.7
Increase in reserve for service agreement costs 1.8  
Reserve for performance guarantees $ 2.1 $ 3.3