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Earnings Per Share Information | 6 Months Ended
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Apr. 30, 2018
Earnings Per Share [Abstract] |
Income per Share Information | Earnings per Share Information The table below provides, for the periods indicated, information pertaining to the calculation of earnings per share, common stock equivalents, weighted-average number of antidilutive options, and shares issued (amounts in thousands):
|  | Six months ended April 30, |  | Three months ended April 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |  |  |
Net income as reported |  | $ | 243,917 |  |  | $ | 195,054 |  |  | $ | 111,810 |  |  | $ | 124,638 |
Plus interest and costs attributable to 0.5% Exchangeable Senior Notes, net of income tax benefit (a) |  |  |  |  | 769 |  |  |  |  |  | 385 |
Numerator for diluted earnings per share |  | $ | 243,917 |  |  | $ | 195,823 |  |  | $ | 111,810 |  |  | $ | 125,023 |
Denominator: |  |  |  |  |  |  |  |
Basic weighted-average shares |  | 154,306 |  |  | 163,040 |  |  | 152,731 |  |  | 163,492 |
Common stock equivalents (b) |  | 2,707 |  |  | 2,011 |  |  | 2,398 |  |  | 2,051 |
Shares attributable to 0.5% Exchangeable Senior Notes (a) |  |  |  |  | 5,859 |  |  |  |  |  | 5,860 |
Diluted weighted-average shares |  | 157,013 |  |  | 170,910 |  |  | 155,129 |  |  | 171,403 |
Other information: |  |  |  |  |  |  |  |
Weighted-average number of antidilutive options and restricted stock units (c) |  | 823 |  |  | 3,535 |  |  | 278 |  |  | 1,865 |
Shares issued under stock incentive and employee stock purchase plans |  | 880 |  |  | 1,974 |  |  | 57 |  |  | 694 |
(a) | On September 15, 2017, we redeemed these notes for cash.
(b) | Common stock equivalents represent the dilutive effect of outstanding in-the-money stock options using the treasury stock method and shares expected to be issued upon the conversion of restricted stock units under our equity award programs.
(c) | Weighted-average number of antidilutive options and restricted stock units are based upon the average closing price of our common stock on the New York Stock Exchange for the period.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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