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Stock-Based Benefit Plans (Tables)
12 Months Ended
Oct. 31, 2015
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 2015, 2014, and 2013 (amounts in thousands):
 
2015
 
2014
 
2013
Total stock-based compensation expense recognized
$
22,903

 
$
21,656

 
$
19,041

Income tax benefit recognized
$
8,767

 
$
8,322

 
$
7,378

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, 2015, 2014, and 2013:
 
2015
 
2014
 
2013
Expected volatility
32.69% - 42.58%
 
36.44% - 44.71%
 
44.04% - 48.13%
Weighted-average volatility
36.36%
 
42.71%
 
46.70%
Risk-free interest rate
1.53% - 2.11%
 
1.45% - 2.71%
 
0.64% - 1.56%
Expected life (years)
4.54 - 9.12
 
4.55 - 9.02
 
4.48 - 8.88
Dividends
none
 
none
 
none
Weighted-average fair value per share of options granted
$11.67
 
$14.26
 
$13.05
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, 2015, 2014, and 2013 (amounts in thousands, except per share amounts):
 
2015
 
2014
 
2013
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
 
Number
of
options
 
Weighted-
average
exercise
price
Balance, beginning
9,358

 
$
25.94

 
9,924

 
$
24.51

 
10,669

 
$
23.23

Granted
870

 
32.49

 
819

 
35.16

 
768

 
32.22

Exercised
(1,441
)
 
27.52

 
(1,313
)
 
20.88

 
(1,454
)
 
19.21

Canceled
(762
)
 
32.48

 
(72
)
 
25.23

 
(59
)
 
25.09

Balance, ending
8,025

 
$
25.75

 
9,358

 
$
25.94

 
9,924

 
$
24.51

Options exercisable, at October 31,
6,098

 
$
23.67

 
7,482

 
$
24.91

 
7,996

 
$
24.49

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, 2015, 2014, and 2013 (amounts in thousands):
 
2015
 
2014
 
2013
Intrinsic value of options outstanding
$
82,058

 
$
62,073

 
$
84,938

Intrinsic value of options exercisable
$
75,034

 
$
55,776

 
$
68,920

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, 2015, 2014, and 2013, is provided below (amounts in thousands):
 
2015
 
2014
 
2013
Intrinsic value of options exercised
$
12,923

 
$
18,361

 
$
19,632

Fair market value of options vested
$
9,183

 
$
8,447

 
$
8,334

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 2015, 2014, and 2013:
 
2015
 
2014
 
2013
Options exercised
30,000

 
96,162

 
531,000

Shares withheld
29,917

 
58,819

 
405,838

Shares issued
83

 
37,343

 
125,162

Average fair market value per share withheld
$
32.64

 
$
33.78

 
$
32.22

Aggregate fair market value of shares withheld (in thousands)
$
976

 
$
1,987

 
$
13,076

Information Regarding the Use of the Stock Swap Method [Text Block]
The following table provides information regarding the use of the stock swap method for fiscal 2014, and 2013:

 
2014
 
2013
Options exercised
 
7,006

 
6,534

Shares tendered
 
4,273

 
4,034

Shares issued
 
2,733

 
2,500

Average market value per share tendered
 
$
33.01

 
$
32.61

Aggregate market value of shares tendered (in thousands)
 
$
141

 
$
132

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 2015, 2014 and 2013 was as follows (amounts in thousands):
 
2015
 
2014
 
2013
Stock compensation expense recognized - options
$
9,610

 
$
9,005

 
$
7,703

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 2015, 2014, and 2013:
 
2015
 
2014
 
2013
Shares issued
26,674

 
24,275

 
20,362

Average price per share
$
31.65

 
$
30.59

 
$
28.71

Compensation expense recognized (in thousands)
$
113

 
$
98

 
$
77

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 2015, 2014, and 2013:
 
2015
 
2014
 
2013
Nonperformance-Based RSUs issued:
 
 
 
 
 
Number of RSUs issued
124,568

 
99,336

 
94,080

Weighted average closing price of our common stock on date of issuance
$
32.74

 
$
35.16

 
$
32.22

Aggregate fair value of RSUs issued (in thousands)
$
4,078

 
$
3,493

 
$
3,031

Nonperformance-Based RSU expense recognized (in thousands):
$
3,317

 
$
3,012

 
$
2,490

 
2015
 
2014
 
2013
At October 31:
 
 
 
 
 
Aggregate Nonperformance-Based RSUs outstanding
380,548

 
304,286

 
225,252

Cumulative unamortized value of Nonperformance-Based RSUs (in thousands)
$
2,542

 
$
2,043

 
$
1,706

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 2015, 2014, and 2013:
 
2015
 
2014
 
2013
Number of shares underlying Performance-Based RSUs to be issued
300,042

 
288,814

 
302,511

Aggregate number of Performance-Based RSUs outstanding at October 31
1,261,545

 
961,503

 
672,687

Closing price of our common stock on Valuation Date
$
32.49

 
$
35.16

 
$
37.78

Aggregate fair value of Performance-Based RSUs issued (in thousands)
$
9,748

 
$
10,155

 
$
11,429

Performance-Based RSU expense recognized (in thousands)
$
9,863

 
$
9,310

 
$
6,946

Unamortized value of Performance-Based RSUs at October 31 (in thousands)
$
8,850

 
$
8,965

 
$
8,120