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Stock-Based Benefit Plans (Tables)
12 Months Ended
Oct. 31, 2016
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 2016, 2015, and 2014 (amounts in thousands):
 
2016
 
2015
 
2014
Total stock-based compensation expense recognized
$
26,679

 
$
22,903

 
$
21,656

Income tax benefit recognized
$
10,450

 
$
8,767

 
$
8,322

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, 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Expected volatility
32.03% - 42.31%
 
32.69% - 42.58%
 
36.44% - 44.71%
Weighted-average volatility
34.69%
 
36.36%
 
42.71%
Risk-free interest rate
1.58% - 2.14%
 
1.53% - 2.11%
 
1.45% - 2.71%
Expected life (years)
4.56 - 9.17
 
4.54 - 9.12
 
4.55 - 9.02
Dividends
none
 
none
 
none
Weighted-average fair value per share of options granted
$11.24
 
$11.67
 
$14.26
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock option activity for our plans during each of the fiscal years ended October 31, 2016, 2015, and 2014 (amounts in thousands, except per share amounts):
 
2016
 
2015
 
2014
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
Balance, beginning
8,025

 
$
25.75

 
9,358

 
$
25.94

 
9,924

 
$
24.51

Granted
965

 
32.85

 
870

 
32.49

 
819

 
35.16

Exercised
(255
)
 
24.04

 
(1,441
)
 
27.52

 
(1,313
)
 
20.88

Canceled
(221
)
 
35.23

 
(762
)
 
32.48

 
(72
)
 
25.23

Balance, ending
8,514

 
$
26.36

 
8,025

 
$
25.75

 
9,358

 
$
25.94

Options exercisable, at October 31,
6,407

 
$
24.14

 
6,098

 
$
23.67

 
7,482

 
$
24.91

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, 2016, 2015, and 2014 (amounts in thousands):
 
2016
 
2015
 
2014
Intrinsic value of options outstanding
$
31,852

 
$
82,058

 
$
62,073

Intrinsic value of options exercisable
$
31,852

 
$
75,034

 
$
55,776

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, 2016, 2015, and 2014, is provided below (amounts in thousands):
 
2016
 
2015
 
2014
Intrinsic value of options exercised
$
2,337

 
$
12,923

 
$
18,361

Fair market value of options vested
$
9,690

 
$
9,183

 
$
8,447

Information Regarding the Use of the Net Exercise Method [Text Block]
The following table provides information regarding the use of the net exercise method for fiscal 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Options exercised
5,000

 
30,000

 
96,162

Shares withheld
3,547

 
29,917

 
58,819

Shares issued
1,453

 
83

 
37,343

Average fair market value per share withheld
$
32.85

 
$
32.64

 
$
33.78

Aggregate fair market value of shares withheld (in thousands)
$
117

 
$
976

 
$
1,987

Employee Stock 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 2016, 2015 and 2014 was as follows (amounts in thousands):
 
2016
 
2015
 
2014
Stock compensation expense recognized - options
$
10,986

 
$
9,610

 
$
9,005

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 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Shares issued
36,778

 
26,674

 
24,275

Average price per share
$
25.97

 
$
31.65

 
$
30.59

Compensation expense recognized (in thousands)
$
129

 
$
113

 
$
98

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 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Nonperformance-Based RSUs issued:
 
 
 
 
 
Number of RSUs issued
139,684

 
124,568

 
99,336

Weighted average closing price of our common stock on date of issuance
$
32.85

 
$
32.74

 
$
35.16

Aggregate fair value of RSUs issued (in thousands)
$
4,589

 
$
4,078

 
$
3,493

Nonperformance-Based RSU expense recognized (in thousands):
$
3,958

 
$
3,317

 
$
3,012

 
2016
 
2015
 
2014
At October 31:
 
 
 
 
 
Aggregate Nonperformance-Based RSUs outstanding
396,716

 
380,548

 
304,286

Cumulative unamortized value of Nonperformance-Based RSUs (in thousands)
$
2,956

 
$
2,542

 
$
2,043

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 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Number of shares underlying Performance-Based RSUs to be issued
182,853

 
300,042

 
288,814

Aggregate number of Performance-Based RSUs outstanding at October 31
1,074,222

 
1,261,545

 
961,503

Closing price of our common stock on Valuation Date
$
32.85

 
$
32.49

 
$
35.16

Aggregate fair value of Performance-Based RSUs issued (in thousands)
$
6,007

 
$
9,748

 
$
10,155

Performance-Based RSU expense recognized (in thousands)
$
8,301

 
$
9,863

 
$
9,310

Unamortized value of Performance-Based RSUs at October 31 (in thousands)
$
6,556

 
$
8,850

 
$
8,965

Vesting based on total shareholder return [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 three distinct performance periods are as follows:
 
 
Performance Period
 
Initial Number of TSR RSUs issued
Tranche 1
 
November 1, 2015 to October 31, 2016
 
61,796

Tranche 2
 
November 1, 2015 to October 31, 2017
 
57,230

Tranche 3
 
November 1, 2015 to October 31, 2018
 
52,679