Other Balance Sheet Details - Deferred Revenue (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013
Deferred Revenue Arrangement [Line Items]
Total	$ 145,618us-gaap_DeferredRevenue	$ 112,170us-gaap_DeferredRevenue
Less current portion	(104,688)us-gaap_DeferredRevenueCurrent	(88,550)us-gaap_DeferredRevenueCurrent
Long-term deferred revenue	40,930us-gaap_DeferredRevenueNoncurrent	23,620us-gaap_DeferredRevenueNoncurrent
Products
Deferred Revenue Arrangement [Line Items]
Total	50,457	36,671
Services
Deferred Revenue Arrangement [Line Items]
Total	$ 95,161	$ 75,499

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

-URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 8

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

Name:	us-gaap_DeferredRevenueNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant