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Stock Incentive Compensation Stock Incentive Plan (Details) - shares
9 Months Ended 12 Months Ended
Jul. 31, 2016
Oct. 31, 2016
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   1,500,000
Employee Stock Option and / or Stock Appreication Righs (SARs) [Member]    
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee   500,000
Restricted Stock, Restricted Stock Units (RSUs) and Performance Based Awards [Member]    
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee 350,000