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Stock-Based Benefit Plans (Details 9) - USD ($)
12 Months Ended
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Dec. 20, 2013
Dec. 17, 2012
Dec. 20, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based expense recognized $ 22,903,000 $ 21,656,000 $ 19,041,000      
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs            
Unamortized value of RSUs $ 25,200,000 $ 24,000,000 $ 19,900,000      
Restricted Stock Units (RSUs) [Member] | Vesting Based On Service [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 124,568 99,336 94,080      
Share Price       $ 32.74 $ 35.16 $ 32.22
Fair value of restricted stock units issued $ 4,078,000 $ 3,493,000 $ 3,031,000      
Stock based expense recognized $ 3,317,000 $ 3,012,000 $ 2,490,000      
Summary of aggregate number and unamortized value of outstanding non-performance based RSUs            
Aggregate outstanding RSUs 380,548 304,286 225,252      
Unamortized value of RSUs $ 2,542,000 $ 2,043,000 $ 1,706,000      
Shares withheld for income taxes related to share issued for RSU   4,221        
Value of shares withheld for income taxes on restricted shares issued   $ 146,500        
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures   10,049        
Maximum [Member] | Restricted Stock Units (RSUs) [Member] | Vesting Based On Service [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years          
Minimum [Member] | Restricted Stock Units (RSUs) [Member] | Vesting Based On Service [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 2 years