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Stock-Based Benefit Plans (Tables)
 12 Months Ended
Oct. 31, 2019
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 2019, 2018, and 2017 (amounts in thousands):
 
2019
 
2018
 
2017
Total stock-based compensation expense recognized
$
26,180

 
$
28,312

 
$
28,466

Income tax benefit recognized
$
6,749

 
$
7,902

 
$
11,125
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, 2019, 2018, and 2017:
 
2019
 
2018
 
2017
Expected volatility
28.61% - 31.34%
 
27.66% - 31.83%
 
29.93% - 41.05%
Weighted-average volatility
30.46%
 
30.33%
 
34.72%
Risk-free interest rate
2.65% - 2.76%
 
2.17% - 2.35%
 
1.96% - 2.52%
Expected life (years)
4.63 - 8.50
 
5.00 - 8.50
 
4.60 - 9.24
Dividends
1.36%
 
0.67%
 
none
Weighted-average fair value per share of options granted
$10.22
 
$16.09
 
$12.16
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, 2019, 2018, and 2017 (amounts in thousands, except per share amounts):
 
2019
 
2018
 
2017
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
Balance, beginning
5,503

 
$
28.84

 
6,120

 
$
27.60

 
8,514

 
$
26.36

Granted
344

 
32.42

 
210

 
47.84

 
595

 
31.61

Exercised
(1,044
)
 
21.87

 
(797
)
 
24.16

 
(2,863
)
 
24.54

Canceled
(23
)
 
34.47

 
(30
)
 
33.08

 
(126
)
 
32.10

Balance, ending
4,780

 
$
30.59

 
5,503

 
$
28.84

 
6,120

 
$
27.60

Options exercisable, at October 31,
3,799

 
$
29.52

 
4,231

 
$
27.03

 
4,266

 
$
25.42
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, 2019, 2018, and 2017 (amounts in thousands):
 
2019
 
2018
 
2017
Intrinsic value of options outstanding
$
45,551

 
$
30,477

 
$
112,886

Intrinsic value of options exercisable
$
39,350

 
$
29,010

 
$
87,978
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, 2019, 2018, and 2017, is provided below (amounts in thousands):
 
2019
 
2018
 
2017
Intrinsic value of options exercised
$
16,491

 
$
18,165

 
$
32,951

Fair market value of options vested
$
7,723

 
$
10,007

 
$
10,897
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 2019 and 2017:
 
2019
 
2017
Options exercised
33,250

 
15,000

Shares withheld
21,842

 
14,472

Shares issued
11,408

 
528

Average fair market value per share withheld
$
33.03

 
$
32.98

Aggregate fair market value of shares withheld (in thousands)
$
721

 
$
477
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 2019, 2018 and 2017 was as follows (amounts in thousands):
 
2019
 
2018
 
2017
Stock compensation expense recognized - options
$
5,181

 
$
7,497

 
$
10,337
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 2019, 2018, and 2017:
 
2019
 
2018
 
2017
Shares issued
41,744

 
35,471

 
33,314

Average price per share
$
31.80

 
$
34.08

 
$
32.25

Compensation expense recognized (in thousands)
$
184

 
$
171

 
$
147
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 RSUs for fiscal 2019, 2018, and 2017:
 
2019
 
2018
 
2017
Time-Based RSUs issued:
 
 
 
 
 
Number of RSUs issued
449,380

 
296,790

 
377,564

Weighted average closing price per share of our common stock on date of issuance
$
33.04

 
$
47.84

 
$
31.61

Aggregate fair value of RSUs issued (in thousands)
$
14,848

 
$
14,198

 
$
11,935

Time-Based RSU expense recognized (in thousands):
$
13,627

 
$
11,193

 
$
7,572

 
2019
 
2018
 
2017
At October 31:
 
 
 
 
 
Aggregate number of Time-Based RSUs outstanding
1,137,936

 
850,853

 
673,224

Cumulative unamortized value of Time-Based RSUs (in thousands)
$
8,694

 
$
8,818

 
$
6,783
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, 2018, and 2017:
 
2019
 
2018
 
2017
Number of shares withheld
29,681

 
23,289

 
20,400

Income tax withholdings due
$
1,042

 
$
1,145

 
$
664,300

Remaining shares issued to the recipients
82,795

 
58,552

 
52,757
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 2019, 2018, and 2017:
 
2019
 
2018
 
2017
Number of shares underlying Performance-Based RSUs to be issued
158,721

 
135,554

 
168,417

Aggregate number of Performance-Based RSUs outstanding at October 31
645,538

 
786,857

 
940,117

Closing price of our common stock on Valuation Date
$
34.86

 
$
47.84

 
$
31.61

Aggregate grant date fair value of Performance-Based RSUs issued (in thousands)
$
5,533

 
$
6,485

 
$
5,324

Performance-Based RSU expense recognized (in thousands)
$
5,514

 
$
6,949

 
$
7,031

Unamortized value of Performance-Based RSUs at October 31 (in thousands)
$
3,431

 
$
3,824

 
$
4,599
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 2019, 2018, and 2017 (amounts in thousands):
 
2019
 
2018
 
2017
TSR RSUs expense recognized
$
1,673

 
$
2,502

 
$
3,400

Unamortized value of TSR RSUs at October 31
$
1,875

 
$
1,773

 
$
2,200
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] The specified performance periods are as follows:
 
 
Performance Period
 
Target Number of TSR RSUs issued
Fiscal 2019
 
November 1, 2018 to October 31, 2021
 
48,710

 
 
 
 
 
Fiscal 2018
 
November 1, 2017 to October 31, 2020
 
39,411

 
 
 
 
 
Fiscal 2017
 
November 1, 2016 to October 31, 2019
 
46,361
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 2019, 2018, and 2017:
 
2019
 
2018
 
2017
Weighted-average volatility
29.06%
 
26.58%
 
26.91%
Risk-free interest rate
2.64%
 
1.92%
 
1.52%
Dividends
none
 
none
 
none
Weighted-average fair value per share of TSR RSUs
$36.46
 
$52.62
 
$39.21
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 and 2018:
 
2019
 
2018
Number of shares withheld
16,643

 
13,974

Income tax withholdings due
$
537,902

 
$
470,364

Remaining shares issued to the recipients
23,817

 
33,553