Taxes [Line Items]

No definition available.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Topic 740

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 6.I)

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-Section 50

-Paragraph 13

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- Definition

Amount of (increase) decrease reasonably possible in the estimated lower bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (d)

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- Definition

Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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- Definition

Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 25

-Paragraph 8

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

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Taxes - Additional Information (Detail) - USD ($)	3 Months Ended			9 Months Ended
Taxes - Additional Information (Detail) - USD ($)	Jul. 31, 2015	Jul. 31, 2014	Jan. 31, 2014	Jul. 31, 2015
Taxes [Line Items]
Statutory federal income tax rate	35.00%			35.00%
Gross unrecognized tax benefits	$ 115,000,000			$ 115,000,000
Unrecognized tax benefits that would affect effective tax rate	115,000,000			115,000,000
Estimated potential decrease in underlying unrecognized tax benefits, minimum	0			0
Estimated potential decrease in underlying unrecognized tax benefits, maximum	23,000,000			23,000,000
Fiscal Year 2015 \| IRS
Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	7,000,000
Fiscal Year 2014 \| IRS
Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	$ 3,200,000
Fiscal Year 2012 \| IRS
Taxes [Line Items]
Unrecognized tax benefits decrease resulting from settlement			$ 10,000,000
Fiscal Year 2012 \| Taiwan
Taxes [Line Items]
Unrecognized tax benefits decrease resulting from settlement				$ 1,100,000
Fiscal Year 2009 and 2010 \| Taiwan
Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions		$ 3,900,000
Unrecognized tax benefits decrease resulting from settlement		$ 5,100,000