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Stock-Based Benefit Plans Stock-Based Benefit Plans (TSR RSUs) (Details 8) - USD ($)
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Payment Arrangement, Expense $ 24,326,000 $ 26,180,000 $ 28,312,000
Unamortized value of stock compensation 15,900,000 $ 18,700,000 20,900,000
Restricted Stock Units (RSUs) [Member] | Vesting based on total shareholder return [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares withheld for income taxes related to share issued for RSU   16,643  
Value of shares withheld for income taxes on restricted shares issued   $ 537,902  
Share-based Payment Arrangement, Expense 2,264,000 1,673,000 2,502,000
Unamortized value of stock compensation $ 716,000 $ 1,875,000 $ 1,773,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures   23,817  
Vesting Based On Performance [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares withheld for income taxes related to share issued for RSU 75,206 123,409 126,330
Value of shares withheld for income taxes on restricted shares issued $ 3,000,000.0 $ 4,000,000.0 $ 6,000,000.0
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 116,423 158,721 135,554
Minimum Percentage of Units Issued to Recipients of Base Award 0.00% 0.00% 0.00%
Maximum Percentage of Units Issued to Recipients of Base Award 150.00% 150.00% 110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 32.55 $ 34.86 $ 47.84
Share-based Payment Arrangement, Expense $ 5,986,000 $ 5,514,000 $ 6,949,000
Unamortized value of stock compensation $ 1,674,000 $ 3,431,000 $ 3,824,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures 107,640 176,631 162,484
Vesting based on total shareholder return [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 37,527 48,710 39,411
Minimum Percentage of Units Issued to Recipients of Base Award 0.00% 0.00% 0.00%
Maximum Percentage of Units Issued to Recipients of Base Award 150.00% 150.00% 200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 27.96% 29.06% 26.58%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.66% 2.64% 1.92%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Payments $ 0 $ 0 $ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 37.66 $ 36.46 $ 52.62
Vesting based on total shareholder return [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation, percent of total sharehold return RSUs earned during the performance period 0.00% 0.00% 76.81%
Vesting based on total shareholder return [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [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   52,679