Document And Entity Information 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 Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] CONSOLIDATED BALANCE SHEETS ASSETS Balance sheet ASSETS Cash and cash equivalents Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and cash equivalents Short-term investments Short-term Investments, Total Accounts receivable, net of allowances of $3,444 and $4,319 Accounts receivable, net of allowances of $2,652 and $4,319 Accounts Receivable, Net, Current, Total Accounts receivable, net of allowances of $3,035 and $2,898 Inventory Net Inventories 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 Other current assets Other current assets Other Assets, Current Total current assets Total current assets Property and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Property and equipment, net Long-term investments Long-term Investments, Total Deferred tax assets Deferred Tax Assets, Net, Noncurrent, Total Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Other assets, net Other assets Total assets Total assets LIABILITIES AND SHAREHOLDERS' EQUITY Accounts payable Accounts Payable, Current, Total Accrued liabilities Total accrued liabilities Deferred revenue Deferred revenue Deferred revenue Total current liabilities Total current liabilities Other long-term liabilities Total other long-term liabilities Other long-term liabilities, Total Deferred revenue, long-term Deferred Revenue, Noncurrent, Total Total long-term liabilities Total long-term liabilities Commitments and contingencies (Note 7) Commitments and contingencies (Note 5) Shareholders' equity FF Shareholders' equity Preferred stock, no par value; 10,000 shares authorized, no shares outstanding Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred stock, no par value; 10,000 shares authorized, no shares outstanding Preferred Stock, Value, Issued, Total Preferred stock, no par value; 10,000 shares authorized, no shares outstanding Common stock, no par value; 200,000 shares authorized, 80,732 and 80,355 shares issued and outstanding Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, no par value; 200,000 shares authorized, 80,709 and 80,355 shares issued and outstanding Common Stock, Value, Issued, Total Common stock, no par value; 200,000 shares authorized, 79,169 and 79,145 shares issued and outstanding 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 Income (Loss), Net of Tax, Total Retained Earnings Accumulated Deficit Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained earnings Retained earnings Total shareholders' equity Balance Balance Total shareholders' equity Total liabilities and shareholders' equity Total liabilities and shareholders' equity Accounts receivable, allowances Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Preferred Stock, No Par Value Preferred stock, par value Preferred stock, shares authorized Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shares outstanding Common Stock, No Par Value 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 Shares outstanding Consolidated Income Statements [Abstract] Net revenues Sales Revenue Goods Net Products Sales Revenue, Goods, Net, Total Sales Revenue, Services, Net, Total Services Sales Revenue, Services, Net, Total Sales Revenue, Net Total Cost of net revenues Cost of Goods Sold, Total Products Cost of Goods Sold, Total Cost of Services, Total Services Cost of Services, Total Cost of Goods and Services Sold Total Gross Profit Gross profit Operating expenses Operating expenses Selling and Marketing Expense, Total Sales and marketing Selling and Marketing Expense, Total Research and Development Expense, Total Research and development Research and Development Expense, Total General and Administrative Expense, Total General and administrative General and Administrative Expense, Total Operating Expense Total Total Operating Income Loss Income from operations Other Nonoperating Income Expense Other income, net Other Nonoperating Income (Expense), Total Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Income before income taxes Income before income taxes, Total Provision for income taxes Provision (benefit) for income taxes Income taxes (benefit) Provision for income taxes Net Income, comprehensive Net income Net income Net Income Earnings Per Share Basic Net income per share - basic Basic net income per share Basic net income per share Weighted Average Number Of Shares Outstanding Basic Weighted average shares - basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted average shares outstanding - basic Earnings Per Share Diluted Net income per share - diluted Diluted net income per share Diluted net income per share Weighted Average Number of Shares Outstanding, Diluted Weighted average shares outstanding - diluted Weighted average shares outstanding - diluted Weighted average shares - diluted Consolidated Statements Of Shareholders' Equity And Comprehensive Income [Abstract] Statement, Equity Components [Axis] Common Stock [Member] Common Stock [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income/(Loss) [Member] Retained Earnings [Member] Retained Earnings [Member] Stockholders Equity Total [Member] Total Shareholders' Equity [Member] Stock Issued During Period Value Stock Options Exercised Exercise of employee stock options Stock Issued During Period Shares Stock Options Exercised Number of Shares, Options exercised Exercise of employee stock options, shares Number of Shares, Options exercised Stock Issued During Period Value Employee Stock Purchase Plan Issuance of stock under employee stock purchase plan Stock Issued During Period Shares Employee Stock Purchase Plans Issuance of stock under employee stock purchase plan, shares Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock Issuance of restricted stock Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Issued restricted stock units Stock Repurchased and Retired During Period, Value Repurchase of common stock Stock Repurchased and Retired During Period, Shares Repurchase of common stock, shares Repurchase of common stock, shares Common stock, repurchased and retired, shares Tax benefit (loss) from employee stock transactions Tax benefit from employee stock transactions Stock-based compensation, share issued Stock-based compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures, Total Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Unrealized gain (loss) on securities, net of tax Unrealized loss on securities, net of tax Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income Comprehensive income Total comprehensive income Consolidated Statements Of Cash Flows [Abstract] Operating activities Adjustments to reconcile net income to net cash provided by operating activities: ASSETS: The difference between the sale price or salvage price and the book value of an asset that was sold or retired during the reporting period. This element refers to the (gain) loss and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. INVESTMENTS: This item represents the net total realized and unrealized (gain) loss included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain or loss of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain or loss which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains or losses realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments of the subject investments. Realized Gain Loss On Disposition Of Assets And Investments Realized loss (gain) on disposition of assets and investments Realized gain on disposition of assets and investments Stock-based compensation Stock-based compensation Share-based Compensation, Total Combining the sales returns and doubtful accounts provisions. Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts and the allowance for sales returns for the purpose of reducing receivables, to an amount that approximates their net realizable value (the amount expected to be collected). Provisions For Doubtful Accounts And Sales Returns Provisions for doubtful accounts and sales returns Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Total Deferred Income Taxes and Tax Credits Deferred income taxes Deferred Income Taxes and Tax Credits, Total Changes in operating assets and liabilities: Accounts receivable Accounts receivable Increase Decrease In Inventories Inventories Increase (Decrease) in Inventories, Total Increase Decrease In Other Operating Assets Other current assets Other current assets Increase (Decrease) in Other Operating Assets, Total Increase (Decrease) in Other Noncurrent Assets Other assets Other assets Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase Decrease In Deferred Revenue Deferred revenue Net cash provided by operating activities Net cash provided by operating activities Investing activities Purchases of investments Purchases of investments Payments to Acquire Investments, Total Maturities of investments Proceeds from Sale of Available-for-sale Securities Sales of investments Proceeds from Sale of Available-for-sale Securities, Total Investment of restricted cash Increase in restricted cash Increase (Decrease) in Restricted Cash, Total Purchases of property and equipment Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Net cash (used in) provided by investing activities Net cash used in investing activities Financing activities Excess tax benefits from share-based compensation Excess tax benefits from stock-based compensation Proceeds from the exercise of stock options and the purchases of stock under employee stock purchase plan Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options, Total Proceeds from the exercise of stock options and purchases of stock under employee stock purchase plan Repurchase of common stock Repurchase of common stock Net cash provided by (used in) financing activities Net cash used in financing activities Net increase in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents, Total Summary Of Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Summary Of Significant Accounting Policies Fair Value Measurements [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Short-Term And Long-Term Investments [Abstract] Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Short-Term And Long-Term Investments Inventories [Abstract] Inventories notes Inventories Commitments And Contingencies [Abstract] Commitments And Contingencies Disclosure [Text Block] Commitments and Contingencies Commitments And Contingencies Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Geographic Sales And Significant Customers [Abstract] Tabular disclosure of information concerning revenue from geographic areas, single external customers who account for 10 percent or more of entity revenue, and single external customers who account for 10 percent or more of entity receivables. Geographic Sales And Significant Customers Disclosure [Text Block] Geographic Sales And Significant Customers Nature of Operations [Text Block] Description Of Business The Company Basis of Presentation and Significant Accounting Policies [Text Block] Basis Of Presentation Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-Based Compensation Treasury Stock [Text Block] Common Stock Repurchase Earnings Per Share, Policy [Policy Text Block] Earnings Per Share Comprehensive Income (Loss) Note [Text Block] Comprehensive Income Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Schedule Of Computation Of Basic And Diluted Net Income Per Share Schedule of Comprehensive Income (Loss) [Table Text Block] Schedule Of Comprehensive Income And Its Components Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule Of Financial Assets Measured At Fair Value On A Recurring Basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule Of Reconciliation Of Items Measured At Fair Value On A Recurring Basis That Used Significant Unobservable Inputs (Level 3) Schedule of Fair Value of Separate Accounts by Major Category of Investment [Table] Schedule of Fair Value of Separate Accounts by Major Category of Investment [Axis] Schedule Of Fair Value Of Separate Accounts By Major Category Of Investment Category [Domain] Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain] Short Term Investments [Member] Short-Term Investments [Member] Long Term Investments [Member] Long Term Investments [Member] Long-Term Investments [Member] Schedule of Investments [Line Items] Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Schedule Of Short-Term And Long-Term Investments Investments Classified by Contractual Maturity Date [Table Text Block] Schedule Of Amortized Cost And Fair Value Of Fixed Maturities By Contractual Years-To-Maturity Schedule of Unrealized Loss on Investments [Table Text Block] Schedule Of Investments That Have Been In A Continuous Unrealized Loss Position Schedule Of Inventories [Table Text Block] Schedule Of Inventories [Table Text Block] Schedule Of Inventories Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area [Text Block] Geographic Sales and Significant Customers Schedule Of Revenues By Geographic Region Schedule of Summary of Significant Accounting Policies [Table]. Schedule of Summary of Significant Accounting Policies [Table] Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Stock Repurchase Program [Axis] Stock Repurchase Program [Axis] Stock Repurchase Program [Domain] Stock Repurchase Program [Domain] Stock Repurchase Program [Domain] October Twenty Six Two Thousand Ten Program [Member] October Twenty Six Two Thousand Ten Program [Member] October 26, 2010 Program [Member] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Annual Equity Program [Member] Annual Equity Program [Member] Annual Equity Program [Member] Retention Awards Program [Member] Retention Awards Program [Member] Retention Awards Program [Member] Executive Officers And Board Of Directors [Member] Executive Officers And Board Of Directors [Member] Executive Officers And Board Of Directors [Member] Other Employees [Member] Other Employees [Member] Other Employees [Member] Schedule of Summary Of Significant Accounting Policies [Line Items] Schedule Of Summary Of Significant Accounting Policies [Line Items] Accounts Receivable Domestic Payment Term Period In Days Accounts Receivable Domestic Payment Term Period In Days Domestic accounts receivable terms of payment, in days Accounts Receivable International Payment Term Period In Days Accounts Receivable International Payment Term Period In Days International accounts receivable terms of payment, in days VSOE To Median Sales Price Range VSOE To Median Sales Price Range Range of VSOE to median sales price PCS Maturity Term Years PCS Maturity Term Years PCS maturity term, years Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized stock-based compensation cost Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Unrecognized stock-based compensation cost, period for recognition, years Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares available for award Approved RSUs to employees and executive officers by compensation committee Share Based Compensation Restricted Stock Units Forfeiture Percentage Share Based Compensation Restricted Stock Units Forfeiture Percentage Restricted stock units, estimated forfeiture rate Rate for grant awarded Approved RSUs to employees and executive officers pursuant to the Company's annual equity awards program Awards Available for Grant, Granted Awards Available for Grant, Granted Outstanding Stock Units, Units granted Percentage of the aggregate number of rsus granted that vest in equal quarterly increments. Percentage Of The Aggregate Number Of Rsus Granted That Vest In Equal Quarterly Increments Percentage of the aggregate number of RSUs granted that vest in equal quarterly increments Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Annual equity awards program vesting period, years Restricted stock units vesting period in years Percentage of quarterly performance stock grant based on achieving quarterly revenue goal. Percentage Of Quarterly Performance Stock Grant Based On Achieving Quarterly Revenue Goal Percentage of quarterly performance stock grant based on achieving quarterly revenue goal Percentage of quarterly revenue goal to be achieved for performance stock grant. Percentage Of Quarterly Revenue Goal To Be Achieved For Performance Stock Grant Percentage of quarterly revenue goal to be achieved for performance stock grant Percentage of quarterly performance stock grant based on achieving EBITDA goal. Percentage Of Quarterly Performance Stock Grant Based On Achieving Ebitda Goal Percentage of quarterly performance stock grant based on achieving EBITDA goal Percentage of achievement threshold to which the goals are entitled. Percentage Of Achievement Threshold To Which The Goals Are Entitled Percentage of achievement threshold to which the goals are entitled Percentage of over-achievement threshold to which the goals are entitled. Percentage Of Over-Achievement Threshold To Which The Goals Are Entitled Percentage of over-achievement threshold to which the goals are entitled Percentage of annual equity awards rsu grant subject to performance based vesting. Percentage Of Annual Equity Awards Rsu Grant Subject To Performance Based Vesting Percentage of annual equity awards RSU grant subject to performance based vesting Percentage of annual equity awards rsu grant subject to performance based vesting in each period. Percentage Of Annual Equity Awards Rsu Grant Subject To Performance Based Vesting In Each Period Percentage of annual equity awards RSU grant subject to performance based vesting in each period Stock Repurchase Program, Number of Shares Authorized to be Repurchased Stock repurchase program, number of shares authorized to be repurchased Stock Repurchase Program, Number Of Shares Repurchased And Retired Stock Repurchase Program, Number Of Shares Repurchased And Retired Shares repurchased and retired Stock Repurchased And Retired Average Price Per Share Stock Repurchased And Retired Average Price Per Share Average price of shares repurchased Stock Repurchase Program, Remaining Authorized Repurchase Amount Common stock repurchase, remaining authorized repurchase amount Stock repurchase program, remaining value amount of shares authorized to be repurchased Weighted Average Number Diluted Shares Outstanding Adjustment Dilutive effect of common shares from stock options and restricted stock units Weighted Average Number Diluted Shares Outstanding Adjustment, Total Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Investment [Axis] Investment [Domain] Investment [Domain] Investment Type [Axis] Investment Type Categorization [Member] Investment Type Categorization [Domain] Corporate Bonds and Notes [Member] Corporate Bonds And Notes [Member] Corporate Bonds And Notes [Member] Municipal Bonds and Notes [Member] Municipal Bonds And Notes [Member] Municipal Bonds And Notes [Member] U S Government Debt Securities [Member] U.S. Government Securities [Member] U S Government Agencies Debt Securities [Member] U.S. Government Agency Securities [Member] Auction Rate Securities [Member] Auction Rate Securities [Member] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Quoted Prices In Active Markets For Identical Securities (Level 1) [Member] Fair Value Inputs Level2 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value Inputs Level3 [Member] Significant Unobservable Inputs (Level 3) [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] Cash and Cash Equivalents, Fair Value Disclosure Cash equivalents, fair value Available-for-sale Securities, Fair Value Disclosure Investments, fair value Fair Value Fair Value Assets, Fair Value Disclosure, Recurring Financial assets measured at fair value on a recurring basis, total Assets, Fair Value Disclosure, Recurring, Total Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Balance, end of period Balance, beginning of period Gains attributable to assets still held as of end of period Fair Value, Assets Measured on Recurring Basis, Gain (Loss) Included in Other Income Total gains realized or unrealized: Included in earnings (other income, net) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Total gains realized or unrealized: Included in other comprehensive income Recognition Of Put Option To Earnings Recognition Of Put Option To Earnings Recognition of put option to earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Transfers into and/or out of level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net, Total Gains Attributable To Fair Value Assets That Used Significant Unobservable Inputs Still Held Gains Attributable To Fair Value Assets That Used Significant Unobservable Inputs Still Held Gains attributable to assets still held as of end of period Schedule of Short-Term and Long-Term Investments [Table] Schedule of Short-Term and Long-Term Investments [Table] U.S. government Securities [Member] U S Government Securities [Member] U.S. Government Securities [Member] Available-for-sale Securities, Amortized Cost Basis Cost or Amortized Cost Cost or Amortized Cost Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains, Total Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Losses Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses, Total Gross Unrealized Losses Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis Cost or Amortized Cost, Fixed Maturities, One year or less Available for sale securities debt maturities over one year amortized cost. Available For Sale Securities Debt Maturities Over One Year Amortized Cost Cost or Amortized Cost, Fixed Maturities, Over one year Available-for-sale Securities, Debt Maturities, within One Year, Fair Value Fair Value, Fixed Maturities, One year or less Available for sale securities debt maturities over one year fair value Available For Sale Securities Debt Maturities Over One Year Fair Value Fair Value, Fixed Maturities, Over one year Available For Sale Auction Rate Securities Variable Rate Debt Maturities Amortized Cost. Available For Sale Securities Variable Rate Debt Maturities Amortized Cost Cost or amortized cost value of fixed maturities available-for-sale ARS Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Fair Value, Continuous Loss Position, Unrealized Loss, Less Than 12 Months Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Fair Value, Continuous Loss Position, Unrealized Loss, 12 Months or Greater Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total Fair Value, Continuous Loss Position, Unrealized Loss, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Gross Unrealized Losses, Continuous Loss Position, Less Than 12 Months Gross Unrealized Losses, Continuous Loss Position, Less Than 12 Months Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Gross Unrealized Losses, Continuous Loss Position, 12 Months or Greater Gross Unrealized Losses, Continuous Loss Position, 12 Months or Greater Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Gross Unrealized Losses, Continuous Loss Position, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total Gross Unrealized Losses, Continuous Loss Position, Total Liquidity days for the securities provided by auction process, minimum. Liquidity Days For The Securities Provided By Auction Process Minimum Liquidity days for the securities provided by auction process, minimum Liquidity days for the securities provided by auction process, maximum Liquidity Days For The Securities Provided By Auction Process Maximum Liquidity days for the securities provided by auction process, maximum Inventory, Finished Goods Inventory, Finished Goods, Total Finished goods Inventory, Raw Materials Inventory, Raw Materials, Total Raw materials Purchase Commitment, Remaining Minimum Amount Committed Contract manufacturers' purchase obligations Tax Credit Carryforward [Table] Effective Income Tax Rate Reconciliation, Tax Contingencies Effective Income Tax Rate Reconciliation, Tax Contingencies, Total Effective tax rate Unrecognized Tax Benefits Balance, end of period Balance, beginning of period Unrecognized tax liabilities Schedule of Segment Reporting Information, by Segment [Table] Major Customers [Axis] Name Of Major Customer [Domain] Name of Major Customer [Domain] Worldwide Distributor 1 [Member] Worldwide Distributor1 [Member] Worldwide Distributor 1 [Member] Worldwide Distributor 2 [Member] Worldwide Distributor2 [Member] Worldwide Distributor 2 [Member] Worldwide Distributor 3 [Member] Worldwide Distributor3 [Member] Worldwide Distributor 3 [Member] Statement, Geographical [Axis] Segment Geographical [Domain] Segment, Geographical [Domain] Americas [Member] Americas [Member] Americas [Member] EMEA [Member] Emea [Member] EMEA [Member] Japan [Member] Japan [Member] Japan [Member] Asia Pacific [Member] Asia Pacific [Member] Asia Pacific [Member] Segment Reporting Information [Line Items] Sales revenue goods net percentage1. Sales Revenue Goods Net Percentage1 Net revenues from worldwide distributor, percent Worldwide distributors accounted for account receivable, percent. Worldwide Distributors Accounted For Account Receivable, Percent Worldwide distributors accounted for account receivable, percent Maximum percentage on net revenue and receivables accounted for other distributors. Maximum Percentage On Net Revenue And Receivables Accounted For Other Distributors Maximum percentage on net revenue and receivables accounted for other distributors Equity Component [Domain] Equity Component [Domain] Certificates Of Deposit [Member] Certificates Of Deposit [Member]