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Earnings Per Share Information (Tables) | 12 Months Ended
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Oct. 31, 2017
Earnings Per Share [Abstract] |
Calculation of income per share | Information pertaining to the calculation of earnings per share for each of the fiscal years ended October 31, 2017, 2016, and 2015, is as follows (amounts in thousands):
| 2017 |  | 2016 |  | 2015
Numerator: |  |  |  |  |
Net income as reported | $ | 535,495 |  |  | $ | 382,095 |  |  | $ | 363,167 |
Plus: Interest and costs attributable to 0.5% Exchangeable Senior Notes, net of income tax benefit (a) | 1,434 |  |  | 1,538 |  |  | 1,561 |
Numerator for diluted earnings per share | $ | 536,929 |  |  | $ | 383,633 |  |  | $ | 364,728 |
Denominator: |  |  |  |  |
Basic weighted-average shares | 162,222 |  |  | 168,261 |  |  | 176,425 |
Common stock equivalents (b) | 2,147 |  |  | 1,854 |  |  | 2,420 |
Shares attributable to 0.5% Exchangeable Senior Notes (a) | 5,118 |  |  | 5,858 |  |  | 5,858 |
Diluted weighted-average shares | 169,487 |  |  | 175,973 |  |  | 184,703 |
Other information: |  |  |  |  |
Weighted-average number of antidilutive options and restricted stock units (c) | 1,966 |  |  | 3,932 |  |  | 1,826 |
Shares issued under stock incentive and employee stock purchase plans | 3,116 |  |  | 587 |  |  | 1,467 |
(a) | On September 15, 2017, we redeemed these notes.
(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 under our restricted stock units programs.
(c) | Weighted-average number of antidilutive options and restricted stock units are based upon the average of the average quarterly closing prices of our common stock on the NYSE for the year.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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