Shares issued under stock incentive and employee stock purchase plans.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

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-Glossary Diluted Earnings Per Share

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The after-tax amount of interest recognized in the period associated with any convertible debt.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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-Glossary Other Comprehensive Income

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-Number 210

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-Number 210

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- Definition

Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Income Per Share Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012	Sep. 05, 2012
Earnings Per Share [Abstract]
Net Income Attributable to Parent	$ 131,524us-gaap_NetIncomeLoss	$ 97,707us-gaap_NetIncomeLoss	$ 65,222us-gaap_NetIncomeLoss	$ 45,580us-gaap_NetIncomeLoss	$ 94,905us-gaap_NetIncomeLoss	$ 46,595us-gaap_NetIncomeLoss	$ 24,674us-gaap_NetIncomeLoss	$ 4,432us-gaap_NetIncomeLoss	$ 340,032us-gaap_NetIncomeLoss	$ 170,606us-gaap_NetIncomeLoss	$ 487,146us-gaap_NetIncomeLoss
Interest on Convertible Debt, Net of Tax									1,557	1,604	78
Net Income Available to Common Stockholders, Diluted									$ 341,589	$ 172,210	$ 487,224
Basic weighted-average shares	177,540	178,217	178,082	176,474	169,440	169,268	169,380	169,064	177,578	169,288	167,346
Common stock equivalents									2,439	2,817	1,996
Incremental Common Shares Attributable to Conversion of Debt Securities									5,858	5,858	812
Diluted weighted-average shares	185,669	186,501	186,442	184,888	177,952	178,001	178,136	171,903	185,875	177,963	170,154
Debt Instrument, Interest Rate, Stated Percentage												0.50%
Debt Instrument [Line Items]
Shares Issued under Stock Incentive and Employee Stock Purchase Plans									1,453	1,213	2,927
Restricted Stock Units RSU And Employee Stock Option Member [Member]
Debt Instrument [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									1,970	1,509	3,646
Senior Notes Due 2032 [Member]
Earnings Per Share [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	0.50%								0.50%			0.50%