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Stock-Based Benefit Plans (Tables)
 12 Months Ended
Oct. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock-based compensation expense recognized
The following table provides information regarding the amount of total stock-based compensation expense recognized by us for fiscal 2020, 2019, and 2018 (amounts in thousands):
202020192018
Total stock-based compensation expense recognized$24,326 $26,180 $28,312 
Income tax benefit recognized$6,227 $6,749 $7,902 
Weighted-average assumptions and the fair value used for stock option grants
The following table summarizes the weighted-average assumptions and fair value used for stock option grants in each of the fiscal years ended October 31, 2020, 2019, and 2018:
 202020192018
Expected volatility27.42% - 28.30%28.61% - 31.34%27.66% - 31.83%
Weighted-average volatility27.42%30.46%30.33%
Risk-free interest rate1.72% - 1.78%2.65% - 2.76%2.17% - 2.35%
Expected life (years)4.64 - 5.764.63 - 8.505.00 - 8.50
Dividends1.11%1.36%none
Weighted-average fair value per share of options granted
$9.68$10.22$16.09
Share-based Payment Arrangement, Option, Activity [Table Text Block]
The following table summarizes stock option activity for our plans during each of the fiscal years ended October 31, 2020, 2019, and 2018 (amounts in thousands, except per share amounts):
 202020192018
Number
of
options		Weighted-
average
exercise
price		Number
of
options		Weighted-
average
exercise
price		Number
of
options		Weighted-
average
exercise
price
Balance, beginning4,780 $30.59 5,503 $28.84 6,120 $27.60 
Granted118 39.51 344 32.42 210 47.84 
Exercised(1,284)24.50 (1,044)21.87 (797)24.16 
Canceled(54)33.83 (23)34.47 (30)33.08 
Balance, ending3,560 $33.03 4,780 $30.59 5,503 $28.84 
Options exercisable, at October 31,2,969 $32.38 3,799 $29.52 4,231 $27.03 
Intrinsic Value of Options Outstanding and Exercisable [Table Text Block]
The following table provides information pertaining to the intrinsic value of options outstanding and exercisable at October 31, 2020, 2019, and 2018 (amounts in thousands):
202020192018
Intrinsic value of options outstanding$34,058 $45,551 $30,477 
Intrinsic value of options exercisable$29,961 $39,350 $29,010 
Intrinsic Value of Options Exercised and Fair Value of Options [Table Text Block]
Information pertaining to the intrinsic value of options exercised and the fair market value of options that became vested or modified in each of the fiscal years ended October 31, 2020, 2019, and 2018, is provided below (amounts in thousands):
202020192018
Intrinsic value of options exercised$23,281 $16,491 $18,165 
Fair market value of options vested$5,926 $7,723 $10,007 
Information Regarding the Use of the Net Exercise Method [Table Text Block]
The following table provides information regarding the use of the net exercise method for fiscal 2020 and 2019:
20202019
Options exercised100,000 33,250 
Shares withheld65,487 21,842 
Shares issued34,513 11,408 
Average fair market value per share withheld$43.11 $33.03 
Aggregate fair market value of shares withheld (in thousands)$2,823 $721 
Share-based Payment Arrangement, Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock-based compensation expense recognized Information regarding the stock compensation expense related to stock options for fiscal 2020, 2019 and 2018 was as follows (amounts in thousands):
202020192018
Stock compensation expense recognized - options$3,144 $5,181 $7,497 
Employee Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
The following table provides information regarding our employee stock purchase plan for fiscal 2020, 2019, and 2018:
202020192018
Shares issued54,235 41,744 35,471 
Average price per share$26.10 $31.80 $34.08 
Compensation expense recognized (in thousands)$189 $184 $171 
Vesting Based On Service [Member] | Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] The following table provides information regarding these Time-Based RSUs for fiscal 2020, 2019, and 2018:
202020192018
Time-Based RSUs issued:  
Number of Time-Based RSUs issued461,280 449,380 296,790 
Weighted-average fair value per share of Time-Based RSUs$37.43 $33.04 $47.84 
Aggregate fair value of Time-Based RSUs issued (in thousands)$17,267 $14,848 $14,198 
Time-Based RSU expense recognized (in thousands):$12,744 $13,627 $11,193 

202020192018
At October 31:  
Aggregate number of Time-Based RSUs outstanding1,315,371 1,137,936 850,853 
Cumulative unamortized value of Time-Based RSUs (in thousands)
$10,972 $8,694 $8,818 
Schedule of the number of shares withheld, the income tax withholding due, and the remaining shares issued [Table Text Block] The following table provides information regarding the number of shares withheld, the income tax withholding due, and the remaining shares issued to the recipients for fiscal 2020, 2019, and 2018:
202020192018
Number of shares withheld58,356 29,681 23,289 
Income tax withholdings due$2,214 $1,042 $1,145 
Remaining shares issued to the recipients236,697 82,795 58,552 
Vesting Based On Performance [Member] | Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] The following table provides information regarding the issuance, valuation assumptions, and amortization of the Performance-Based RSUs issued in fiscal 2020, 2019, and 2018:
 202020192018
Number of shares underlying Performance-Based RSUs to be issued116,423 158,721 135,554 
Aggregate number of Performance-Based RSUs outstanding at October 31579,115 645,538 786,857 
Weighted-average fair value per share of Performance-Based RSUs$32.55 $34.86 $47.84 
Aggregate grant date fair value of Performance-Based RSUs issued (in thousands)$3,790 $5,533 $6,485 
Performance-Based RSU expense recognized (in thousands)$5,986 $5,514 $6,949 
Unamortized value of Performance-Based RSUs at October 31 (in thousands)$1,674 $3,431 $3,824 
Vesting based on total shareholder return [Member] | Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock-based compensation expense recognized
The following table provides information on expense recognized and the unamortized value of our TSR RSUs for fiscal 2020, 2019, and 2018 (amounts in thousands):
 202020192018
TSR RSUs expense recognized$2,264 $1,673 $2,502 
Unamortized value of TSR RSUs at October 31$716 $1,875 $1,773 
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] The specified performance periods are as follows:
Performance PeriodTarget Number of TSR RSUs issued
Fiscal 2020November 1, 2019 to October 31, 202237,527 
Fiscal 2019November 1, 2018 to October 31, 202148,710 
Fiscal 2018November 1, 2017 to October 31, 202039,411 
Schedule of Share-based Payment Award, Total Shareholder Return RSUs, Valuation Assumptions [Table Text Block] The following table summarizes the assumptions used in the Monte Carlo simulation and the fair value per share of the TSR RSUs granted in fiscal 2020, 2019, and 2018:
202020192018
Weighted-average volatility27.96%29.06%26.58%
Risk-free interest rate1.66%2.64%1.92%
Dividendsnonenonenone
Weighted-average fair value per share of TSR RSUs$37.66$36.46$52.62
Schedule of the number of shares withheld, the income tax withholding due, and the remaining shares issued [Table Text Block] The following table provides information regarding the number of shares withheld, the income tax withholding due, and the remaining shares issued to the recipients for fiscal 2019:
2019
Number of shares withheld16,643 
Income tax withholdings due$537,902 
Remaining shares issued to the recipients23,817