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SHARE-BASED COMPENSATION (Tables) | 12 Months Ended
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Oct. 31, 2018
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, 2015 | 2,590 |  |  | 6,514 |  |  |  | $13.07 |
Granted | (586 | ) |  | 586 |  |  |  | $23.58 |
Exercised | — |  |  | (568 | ) |  |  | $10.45 |
Cancelled | 12 |  |  | (12 | ) |  |  | $18.62 |
Outstanding as of October 31, 2016 | 2,016 |  |  | 6,520 |  |  |  | $14.23 |
Granted | (1,186 | ) |  | 1,186 |  |  |  | $41.37 |
Exercised | — |  |  | (409 | ) |  |  | $15.27 |
Outstanding as of October 31, 2017 | 830 |  |  | 7,297 |  |  |  | $18.58 |
Shares approved by the Company's shareholders for the 2018 Incentive Compensation Plan | 5,000 |  |  | — |  |  |  | $— |
Cancelled unissued shares under the 2012 Incentive Compensation Plan | (830 | ) |  | — |  |  |  | $— |
Granted | (412 | ) |  | 412 |  |  |  | $65.64 |
Exercised | — |  |  | (1,285 | ) |  |  | $10.54 |
Cancelled | 24 |  |  | (24 | ) |  |  | $28.85 |
Outstanding as of October 31, 2018 | 4,612 |  |  | 6,400 |  |  |  | $23.19 |
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, 2018 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 | 2,955 |  |  |  | $23.48 |  |  | 4.4 |  |  | $178,327 |
Class A Common Stock | 3,445 |  |  |  | $22.94 |  |  | 5.5 |  | 150,649 |
| 6,400 |  |  |  | $23.19 |  |  | 5.0 |  |  | $328,976 |
| Options Exercisable
| Number Outstanding |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value
Common Stock | 2,197 |  |  |  | $14.75 |  |  | 3.0 |  |  | $151,756 |
Class A Common Stock | 2,160 |  |  |  | $15.59 |  |  | 4.1 |  | 110,297 |
| 4,357 |  |  |  | $15.17 |  |  | 3.5 |  |  | $262,053 |
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,
| 2018 |  | 2017 |  | 2016
Cash proceeds from stock option exercises |  | $4,031 |  |  |  | $5,659 |  |  |  | $5,924 |
Tax benefit realized from stock option exercises | 2,162 |  |  | 3,087 |  |  | 868 |
Intrinsic value of stock option exercises | 75,152 |  |  | 10,376 |  |  | 9,751 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The fair value of each stock option grant in fiscal 2018, 2017 and 2016 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,
| 2018 |  | 2017 |  | 2016
| Common Stock |  | Class A Common Stock |  | Common Stock |  | Class A Common Stock |  | Common Stock |  | Class A Common Stock
Expected stock price volatility | 31.00 | % |  | 27.69 | % |  | 37.89 | % |  | 28.18 | % |  | 39.63 | % |  | 32.52 | %
Risk-free interest rate | 2.83 | % |  | 2.81 | % |  | 2.44 | % |  | 2.06 | % |  | 2.16 | % |  | 1.82 | %
Dividend yield | .24 | % |  | .29 | % |  | .26 | % |  | .31 | % |  | .24 | % |  | .32 | %
Forfeiture rate | .00 | % |  | .00 | % |  | .00 | % |  | .00 | % |  | .00 | % |  | .00 | %
Expected option life (years) | 9 |  |  | 8 |  |  | 9 |  |  | 7 |  |  | 9 |  |  | 6 |
Weighted average fair value | $30.00 |  |  | $20.93 |  |  | $21.36 |  |  | $12.47 |  |  | $12.10 |  |  | $7.92 |

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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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