Income Taxes (Schedule of Provision for Income Taxes Attributable to Income from Operations and Amount Computed by Applying Statutory Federal Income Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Income Tax Disclosure [Abstract]
Computer expected provision for taxes	$ 96,408	$ 67,468	$ 43,549
Income earned outside the United States subject to different tax rates	(71,282)	(56,877)	(33,912)
State taxes, net of federal income tax benefit	294	218	206
Research and development credit	(131)	(1,183)	(525)
Incentive stock option compensation and non-deductible employee	347	(119)	(50)
Tax accrual adjustment	665	7,167	2,640
Other, net	507	660	(285)
Income tax provision	$ 26,808	$ 17,334	$ 11,623

Income Taxes (Schedule of Provision for Income Taxes Attributable to Income from Operations and Amount Computed by Applying Statutory Federal Income Tax Rate) (Details) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Oct. 31, 2012

Oct. 31, 2011

Oct. 31, 2010

Income Tax Disclosure [Abstract]

Computer expected provision for taxes

$ 96,408

$ 67,468

$ 43,549

Income earned outside the United States subject to different tax rates

(71,282)

(56,877)

(33,912)

State taxes, net of federal income tax benefit

294

218

206

Research and development credit

(131)

(1,183)

(525)

Incentive stock option compensation and non-deductible employee

347

(119)

(50)

Tax accrual adjustment

665

7,167

2,640

Other, net

507

660

(285)

Income tax provision

$ 26,808

$ 17,334

$ 11,623

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 9

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to total foreign income tax expense or benefit. The foreign income tax expense or benefit difference represents the income tax expense or benefit at applicable domestic statutory income tax rates applied to foreign earnings or loss for the period versus the foreign income tax expense or benefit calculated by applying the appropriate foreign tax rates.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 47

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to research tax credits generated or utilized under enacted tax laws during the period.

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