Document and Entity Information [Abstract] Document And Entity Information [Abstract] Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Public Float Entity Current Reporting Status Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Common Stock, Shares Outstanding Consolidated Statements Of Operations [Abstract] Net revenues Sales Revenue Goods Net Product Product Sales Revenue Services Net Service Service Total net revenues for the year ended Net revenues Total net revenues Total net revenues Cost of revenues Cost Of Goods Sold Product Product Product Cost of Revenues - Product Cost Of Services Service Service Service Cost of Revenues - Service Cost of Revenue Total cost of revenues Total cost of revenues Total cost of revenues Cost of revenues Gross margin Aggregate net revenue less cost of goods sold or operating expenses directly attributable to the revenue generation activity. Gross Profit Product Product Aggregate net revenue less cost of services sold or operating expenses directly attributable to the revenue generation activity. Gross profit service Service Gross Profit Gross margin (loss) Total gross margin Gross margin Operating expenses: Research and development Research and development Sales and marketing Sales and marketing Sales and marketing expenses General and administrative General and administrative Legal fees associated with indemnification obligations and other related costs, net Amortization of intangible assets Amortization of Intangible Assets, Total Acquisition And Integration Costs Acquisition and integration costs Acquisition and integration costs The charge against earnings in the period, comprised of costs associated with restructuring activities and facilities lease loss (benefits) not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans. Restructuring Costs And Facilities Lease Loss Net Restructuring costs and facilities lease loss Research and Development in Process In-process research and development Business acquisition, purchase price allocation, in-process research and development Goodwill and Intangible Asset Impairment Goodwill and acquisition-related intangible assets impairment Goodwill and Intangible Asset Impairment, Total Goodwill and intangible asset impairment Gain (Loss) on Sale of Other Assets Loss on sale of subsidiary Gain (loss) on the sale of property Operating Expenses Total operating expenses Total operating expenses Income from operations Income (loss) from operations Income from operations Income from operations Investment Income, Interest and Dividend Investment Income, Interest and Dividend, Total Interest income Interest and other income (loss), net Other income (expense) Total other income (expense) Interest income and other loss, net Other expenses Interest expense Interest expense Interest expense Gain (loss) on sale of investments and property - net Gain (loss) on sale of investments and property, net Gain (loss) on sale of investments and property, net Gain (Loss) on Disposition of Assets, Total Gain (loss) on sale of investments and property, net Income (loss) before provision for income taxes Income (loss) before provision for income taxes Income (loss) before income tax provision (benefit) Income (loss) before income tax provision (benefit) Income tax provision (benefit) Income tax expense (benefit) Income tax benefit Total Income tax expense (benefit) Net income (loss) Net income (loss) Net income (loss) Net income Net loss per share - basic Earnings Per Share Basic Net income (loss) per share - basic Net income (loss) per share - basic Basic net income (loss) per share Diluted net income (loss) per share Net loss per share - diluted Net income (loss) per share - diluted Net income (loss) per share - diluted Weighted-average shares used in computing basic net income per share Shares used in per share calculation - basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted-average shares used in computing basic net income per share Weighted-average shares used in computing diluted net income per share Shares used in per share calculation - diluted Weighted Average Number of Shares Outstanding, Diluted, Total Shares used in per share calculation - diluted Consolidated Balance Sheets [Abstract] ASSETS Cash and cash equivalents Cash and cash equivalents, end of year Cash and cash equivalents, beginning of year Cash and cash equivalents Short-term investments Short-term investments, net Fair Value Total cash, cash equivalents, short-term investments and restricted cash Cash and cash equivalents and short-term investments Total cash, cash equivalents and short-term investments Cash and cash equivalents and short-term investments Accounts receivable, net of allowances of $10,829 and $12,573 at July 31, 2010 and October 31, 2009, respectively Accounts receivable, net of allowances of $6,399 and $6,721 at October 29, 2011 and October 30, 2010, respectively Total Accounts receivable, net Inventory Net Inventories Total Inventories, total Deferred Tax Assets Net Current Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current, Beginning Balance Deferred tax assets Deferred Tax Assets, Net, Current, Total Sum of the amounts paid in advance for capitalized costs and carrying amounts as of the balance sheet date of deferred costs capitalized at the end of the reporting period that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer. Prepaid expenses and other current assets Total current assets Total current assets Total current assets Property and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Total Total Property and equipment, net Goodwill Goodwill, net Goodwill Goodwill Goodwill, Total Goodwill, net Intangible assets, net Intangible assets, net Net Carrying Value Net Carrying Value Non-current deferred tax assets Deferred income tax benefits Deferred Tax Assets, Net, Noncurrent, Total Deferred Income Tax Benefits Other assets Other assets Other Assets Other Assets, Noncurrent, Total Other non-current assets Total assets Identifiable Assets Total assets Liabilities and Stockholders' Equity LIABILITIES AND STOCKHOLDERS' EQUITY Accounts Payable Current Accounts payable Accounts Payable, Current, Total Accounts payable Employee Related Liabilities Current Accrued employee compensation Employee-related Liabilities, Current, Total Deferred Revenue Current Deferred revenue Deferred Revenue, Current, Total Current liabilities associated with facilities lease losses Current liabilities associated with facilities lease losses Current portion of capital lease obligations Current portion of term loan Current portion of debt Current portion of term loan Less current maturities Accrued Liabilities, Current Other accrued liabilities Total Accrued liabilities Total current liabilities Total current liabilities Non-current capital lease obligations, net of current portion Term loan net of current portion Term loan, net of current portion Carrying value as of the balance sheet date of Senior Secured Notes (with maturities initially due after one year or beyond the operating cycle, if longer), excluding the current portion, if any. These borrowings are secured by assets of the borrower. Senior Secured Notes Liability associated with senior secured notes Senior secured notes Non-current liabilities associated with facilities lease losses Non-current liabilities associated with facilities lease losses Non-current liabilities associated with facilities lease losses Non-current deferred revenue Deferred Revenue, Noncurrent, Total Non-current income tax liability Other non-current liabilities Other liabilities Other Liabilities, Noncurrent, Total Other Liabilities Total liabilities Total liabilities Commitments and contingencies 2009 Commitments and contingencies (Note 10) Stockholders' equity: Stockholders' equity: Preferred stock, $0.001 par value, 5,000 shares authorized, no shares issued and outstanding Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred stock, $0.001 par value, 5,000 shares authorized, no shares issued and outstanding Preferred Stock, Value, Issued, Total Preferred stock, $0.001 par value, 5,000 shares authorized, no shares issued and outstanding Common stock, $0.001 par value, 800,000 shares authorized: Issued and outstanding: 452,525 and 433,988 shares at July 31, 2010 and October 31, 2009, respectively Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, $0.001 par value, 800,000 shares authorized: Issued and outstanding: xxx,xxx and 461,291 shares at April 30, 2011 and October 30, 2010, respectively Common Stock, Value, Issued, Total Common stock, $0.001 par value, 800,000 shares authorized: Issued and outstanding: 448,022 and 461,291 shares at October 29, 2011 and October 30, 2010, respectively Additional paid-in capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional paid-in capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated other comprehensive loss Adjustment to accumulated deficit upon adoption of ASC 740-10 Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained earnings Accumulated deficit Retained earnings (accumulated deficit) Total stockholders' equity Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total stockholders' equity Total stockholders' equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Accounts receivable, allowances Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Common stock, par value Common stock, shares authorized Common stock, shares issued Common Stock, Shares, Issued, Total Common stock, shares outstanding Balance, shares Balance, shares Consolidated Statements Of Stockholders' Equity And Comprehensive Income (Loss) [Abstract] Statement, Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid In Capital [Member] Additional Paid-In Capital [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Loss [Member] Retained Earnings [Member] Retained Earnings (Accumulated Deficit) [Member] Comprehensive Income [Member] Comprehensive Income (Loss) [Member] Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance, value Balance, value Total Shareholders' Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Total Shareholders' Equity Stock Issued During Period, Value, New Issues Issuance of common stock, value Stock Issued During Period, Shares, New Issues Issuance of common stock, shares Stock Redeemed or Called During Period, Value Retirement of common stock, value Stock Redeemed or Called During Period, Shares Retirement of common stock, shares Stock Repurchased During Period, Value Common stock repurchases, value Stock Repurchased During Period, Shares Common stock repurchases, shares Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Stock options and awards assumed upon acquisition Settlement of stock awards assumed upon the acquisition. Acquisition (Settlement) Of Foundry Stock-Options And Awards Resulting From Acquisition Settlement of stock awards assumed upon acquisition Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Total tax benefits (detriments) from employee stock options and employee participation in the company's equity compensation plans Tax benefit or detriment from employee stock plans Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total Stock-based compensation Change in net unrealized gains (losses) on marketable equity securities, cash flow hedges and investments. Other Comprehensive Income Unrealized Gain Loss On Securities Hedges Investments Change in net unrealized gains (losses) on marketable equity securities, cash flow hedges and investments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Total Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Change in net unrealized gains (losses) on marketable equity securities, cash flow hedges and investments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Total Change in net unrealized gains on cash flow hedges Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease) Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease), Total Change in cumulative translation adjustments Consolidated Statements Of Cash Flows [Abstract] Cash flows from operating activities: Adjustments to reconcile net income (loss) to net cash provided by operating activities: Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefits or detriments from stock-based compensation Excess tax benefits or detriments from stock-based compensation Depreciation and amortization Depreciation and amortization Depreciation and amortization Depreciation expense Loss on disposal of property and equipment Loss on disposal of property and equipment Gain (loss) on sale of investments and property - net Loss on disposal of property and equipment Loss on the sale of property Amortization of debt issuance costs and original issue discount Amortization of debt issuance costs Amortization of debt issuance costs and original issue discount Write-offs of debt issuance costs and original issue discount. Write Offs Of Debt Issuance Costs And Original Issue Discount Write off of debt issuance cost and debt discount Write-off of debt issuance costs and original issue discount on debt extinguishment Net (gains) losses on investments and marketable equity securities Net (gains) losses on investments and marketable equity securities Gain (Loss) on Sale of Investments Gain (Loss) on Sale of Investments, Total Net (gains) losses on investments and marketable equity securities Provision for doubtful accounts receivable and sales allowances Non-cash compensation expense Stock-based compensation Non-cash compensation expense Total stock-based compensation Non-cash facilities lease loss benefit Non Cash Facilities Lease Loss Benefit Non-cash facilities lease loss expense (benefit) Capitalization of interest cost Interest costs capitalized Interest costs capitalized Asset Impairment Charges Goodwill and acquisition-related intangible assets impairment Asset Impairment Charges, Total Assets impairment charge Changes in assets and liabilities: Changes in assets and liabilities, net of acquired assets and assumed liabilities: Restricted cash Restricted cash Accounts receivable Accounts receivable Inventories Inventories Inventories Prepaid expenses and other assets Prepaid expenses and other assets Prepaid expenses and other assets Deferred tax assets Deferred tax assets Accounts payable Accounts payable Accounts payable Accounts payable Accrued employee compensation Accrued employee compensation Accrued employee compensation Deferred revenue Deferred revenue Other accrued liabilities Other accrued liabilities The net change during the reporting period in liabilities associated with facilities lease losses. Increase Decrease In Liabilities Associated With Facilities Lease Losses Liabilities associated with facilities lease losses Liability associated with class action lawsuit increase decrease. Liability Associated With Class Action Lawsuit Increase Decrease Liability associated with class action lawsuit Net Cash Provided by (Used in) Operating Activities Net cash provided by (used in) operating activities Net cash provided by operating activities Net cash provided by operating activities Cash flows from investing activities: Purchases of short-term investments Purchases of short-term investments Payments to acquire non-marketable securities Payments To Acquire Non Marketable Securities Purchases of non-marketable minority equity investments Purchases of non-marketable minority equity investments Proceeds from maturities and sale of short-term investments Proceeds from maturities and sale of short-term investments Payments for (Proceeds from) Long-term Investments Proceeds from maturities and sale of long-term investments Payments for (Proceeds from) Long-term Investments, Total Proceeds from maturities and sale of long-term investments Purchases of property and equipment Purchases of property and equipment Purchases of property and equipment Purchases of property and equipment Purchases of property and equipment Payment to acquire land and building Proceeds from sale of property Proceeds from sale of property Proceeds from sale of property Net proceeds from sale of owned real estate property to an unrelated third party Increase (Decrease) in Restricted Cash Decrease in restricted cash Decrease in restricted cash Increase (Decrease) in Restricted Cash, Total Decrease in restricted cash Proceeds from Sales of Business, Affiliate and Productive Assets Proceeds from sale of subsidiary Payments to Acquire Businesses, Net of Cash Acquired Net cash paid in connection with acquisitions Payments to Acquire Businesses, Net of Cash Acquired, Total Net cash paid in connection with acquisitions Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Net cash used in investing activities Net cash provided by (used in) investing activities Cash flows from financing activities: The cash outflow for loan and debt issuance costs. Payments Of Financing Costs, Total Payment of fees related to the term loan Payment of fees related to the term loan Payment of senior underwriting fees related to the term loan Payment of debt issuance costs related to the senior secured notes Original debt issuance costs Payment of debt issuance fees related to the Senior Secured Notes The cash outflow from the repayment of debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and for which a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. Repayments Of Convertible Subordinated Debt Payment of principal related to the convertible subordinated debt Payment of principal related to the convertible subordinated debt Principal amount of convertible subordinated debt paid Repayments of Secured Debt Payment of principal related to the term loan Prepayment for term loan Payment of principal related to the term loan The cash outflow for the obligation for lease meeting the criteria for capitalization. Repayments Of Capital Lease Obligations Payment of principal related to capital leases Payment of principal related to capital leases Payment of principal related to capital leases Payments for Repurchase of Common Stock Common stock repurchases Common stock repurchases Proceeds From Repayments Of Secured Debt Proceeds from Senior Secured Notes Proceeds from senior secured notes Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Proceeds from issuance of common stock, net Proceeds from issuance of common stock Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options, Total Proceeds from issuance of common stock Proceeds from Issuance of Debt Proceeds from term loan Proceeds from (payments of principal related to) the revolving credit facility. Proceeds From Payments Of Principal Related To Revolving Credit Facility Proceeds from (payment of principal related to) the revolving credit facility Proceeds from (payment of principal related to) the revolving credit facility Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefits or detriments from stock-based compensation Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Net cash used in financing activities Net cash provided by (used in) financing activities Effect of exchange rate fluctuations on cash and cash equivalents Effect of exchange rate fluctuations on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Supplemental disclosures of cash flow information: Interest Paid Interest Paid, Total Cash paid for interest Income Taxes Paid, Net Income Taxes Paid, Net, Total Cash paid (refunded) for income taxes Supplemental schedule of non-cash investing activities: Fair value of stock options and unvested awards assumed in exchange for acquired Foundry assets. Fair Value Of Stock Options And Unvested Awards Assumed In Exchange For Acquired Foundry Assets Fair value of stock options and unvested awards assumed in exchange for acquired Foundry assets Fair Value of Assets Acquired Fair value of stock options and unvested awards assumed in exchange for acquired Foundry assets Note assumed on sale of subsidiary Fair value of property and equipment acquired through capital leases. Acquisition Of Property And Equipment Through Capital Leases Acquisition of property and equipment through capital leases Basis Of Presentation [Abstract] OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock Basis Of Presentation Summary Of Significant Accounting Policies [Abstract] SignificantAccountingPoliciesTextBlock Summary Of Significant Accounting Policies Acquisition [Abstract] Business Combination Disclosure [Text Block] Acquisition Goodwill And Intangible Assets [Abstract] GoodwillAndIntangibleAssetsDisclosureTextBlock Goodwill And Intangible Assets