Share-Based Compensation Expense (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Share-based compensation expense
Share-based compensation expense capitalized in inventory, net	$ (48)	$ (48)	$ (72)	$ (58)
Total share-based compensation	9,885	6,825	28,032	23,656
Cost of Sales [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	1,119	896	3,228	2,645
Product costs [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	658	564	1,905	1,509
Service costs [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	461	332	1,323	1,136
Operating Expense [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	8,814	5,977	24,876	21,069
Research and Development Expense [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	2,054	1,841	6,291	6,067
Selling and marketing expense [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	3,562	2,589	9,687	8,510
General and Administrative Expense [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	3,198	1,547	8,898	6,485
Acquisition and Integration Costs [Member]
Share-based compensation expense
Allocated Share-based Compensation Expense	$ 0	$ 0	$ 0	$ 7

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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