SHARE-BASED COMPENSATION EXPENSE (Details 4) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Share-based compensation expense
Share-based compensation expense capitalized in inventory, net	$ 35	$ 32	$ 136	$ 37
Total share-based compensation	12,005	14,733	24,830	29,210
Cost of Sales
Share-based compensation expense
Share-based compensation expense	1,387	1,322	2,576	2,485
Product costs
Share-based compensation expense
Share-based compensation expense	708	629	1,269	1,200
Service costs
Share-based compensation expense
Share-based compensation expense	679	693	1,307	1,285
Operating Expense
Share-based compensation expense
Share-based compensation expense	10,583	13,379	22,118	26,688
Research and development
Share-based compensation expense
Share-based compensation expense	3,653	3,791	6,862	7,219
Sales and marketing
Share-based compensation expense
Share-based compensation expense	3,513	3,923	6,386	8,658
General and administrative
Share-based compensation expense
Share-based compensation expense	3,417	4,968	8,870	10,097
Acquisition and integration costs
Share-based compensation expense
Share-based compensation expense	$ 0	$ 697	$ 0	$ 714

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 S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: 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=96867065&loc=d3e5047-113901

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=96867065&loc=d3e5070-113901

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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=96867065&loc=d3e5070-113901

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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)
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