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SHARE-BASED COMPENSATION (Tables)
 12 Months Ended
Oct. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule Of Share Based Compensation Stock Options Activity And Shares Available For Grants [Table Text Block]
Information concerning share-based activity for each of the last three fiscal years ended October 31 is as follows (in thousands, except per share data):
 
 
 
Shares Under Option
 
Shares Available For Grant
 
Shares
 
Weighted Average Exercise Price
Outstanding as of October 31, 2014
2,021

 
4,080

 

$18.08

Granted
(363
)
 
363

 

$41.48

Exercised
—

 
(274
)
 

$13.48

Outstanding as of October 31, 2015
1,658

 
4,169

 

$20.42

Granted
(375
)
 
375

 

$36.84

Exercised
—

 
(364
)
 

$16.33

Cancelled
7

 
(7
)
 

$29.10

Outstanding as of October 31, 2016
1,290

 
4,173

 

$22.23

Granted
(759
)
 
759

 

$64.63

Exercised
—

 
(262
)
 

$23.85

Outstanding as of October 31, 2017
531

 
4,670

 

$29.04
Share-based Compensation Arrangements by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]
Information concerning stock options outstanding (all of which are vested or expected to vest) and stock options exercisable by class of common stock as of October 31, 2017 is as follows (in thousands, except per share and contractual life data):
 
Options Outstanding
 
Number Outstanding
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Life (Years)
 
Aggregate
Intrinsic
Value
Common Stock
2,343

 

$25.44

 
4.0
 

$152,858

Class A Common Stock
2,327

 

$32.66

 
6.1
 
101,081

 
4,670

 

$29.04

 
5.1
 

$253,939

 
Options Exercisable
 
Number Outstanding
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Life (Years)
 
Aggregate
Intrinsic
Value
Common Stock
1,887

 

$17.82

 
2.9
 

$137,469

Class A Common Stock
1,226

 

$20.30

 
4.3
 
68,432

 
3,113

 

$18.80

 
3.5
 

$205,901
Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block] (Deprecated 2017-01-31)
Information concerning stock options exercised is as follows (in thousands):
 
Year ended October 31,
 
2017
 
2016
 
2015
Cash proceeds from stock option exercises

$5,659

 

$5,924

 

$3,673

Tax benefit realized from stock option exercises
3,087

 
868

 
1,402

Intrinsic value of stock option exercises
10,376

 
9,751

 
6,958
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of each stock option grant in fiscal 2017, 2016 and 2015 was estimated on the date of grant using the Black-Scholes option-pricing model based on the following weighted average assumptions:
 
Year ended October 31,
 
2017
 
2016
 
2015
 
Common Stock
 
Class A Common Stock
 
Common Stock
 
Class A Common Stock
 
Common Stock
 
Class A Common Stock
Expected stock price volatility
37.89
%
 
28.18
%
 
39.63
%
 
32.52
%
 
39.96
%
 
36.51
%
Risk-free interest rate
2.44
%
 
2.06
%
 
2.16
%
 
1.82
%
 
2.30
%
 
2.12
%
Dividend yield
.26
%
 
.31
%
 
.24
%
 
.32
%
 
.24
%
 
.32
%
Forfeiture rate
.00
%
 
.00
%
 
.00
%
 
.00
%
 
.00
%
 
.00
%
Expected option life (years)
9

 
7

 
9

 
6

 
9

 
7

Weighted average fair value
$33.38

 
$19.49

 
$18.90

 
$12.38

 
$22.77

 
$15.67