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Stock-Based Benefit Plans (Details Textual) (USD $)
3 Months Ended 3 Months Ended
Jan. 31, 2014
Oct. 31, 2013
Jan. 31, 2014
Performance Based Restricted Stock Units [Member]
Jan. 31, 2013
Performance Based Restricted Stock Units [Member]
Jan. 31, 2014
Stock Price Based Restricted Stock Units [Member]
Jan. 31, 2013
Stock Price Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Gross shares distributed related to restricted stock         306,000 200,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     4 years      
Stock Based Benefit Plans (Textual) [Abstract]            
Minimum percentage of units issued to the recipients of the base award 90.00%          
Maximum percentage of units issued to the recipients of the base award 110.00%          
Stock Based Benefit Plans (Additional Textual) [Abstract]            
Aggregate unamortized value of outstanding stock based compensation awards $ 37,800,000 $ 19,900,000        
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures     $ 10,150,000 $ 11,429,000