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Segment Disclosure - Revenues Related to Operations by Geographic Areas (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 521,812	$ 482,945	$ 1,518,460	$ 1,457,339
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	268,228	234,770	745,458	706,083
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	65,881	68,591	203,645	197,712
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	61,517	64,874	184,219	200,510
Asia-Pacific And Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 126,186	$ 114,710	$ 385,138	$ 353,034

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Details

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