Condensed Consolidated Statements of Comprehensive Income (Unaudited) [Abstract] -- None. No documentation exists for this element. -- Statement [Table] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement [Line Items] Statement [Line Items] Net income Net Income (Loss) Attributable to Parent Other comprehensive income, net of tax: Other comprehensive income, net of tax: [Abstract] -- None. No documentation exists for this element. -- Unrealized gains on available-for-sale securities: Unrealized losses on available-for-sale securities: [Abstract] -- None. No documentation exists for this element. -- Unrealized holding gains arising during the period Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Less: reclassification adjustment for (gains) losses included in net income Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Net unrealized gains on available-for-sale securities, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Property and Equipment, Net -- None. No documentation exists for this element. -- Property and Equipment, Net [Text Block] Property, Plant and Equipment Disclosure [Text Block] Accrued and Other Current Liabilities [Abstract] -- None. No documentation exists for this element. -- Fair Value Inputs, Liabilities, Quantitative Information [Table] Fair Value Inputs, Liabilities, Quantitative Information [Table] Liability Class [Axis] Liability Class [Axis] Fair value by liability class [Domain] Fair Value by Liability Class [Domain] Accrued payroll-related expenses [Member] Accrued Payroll Related Expenses [Member] -- None. No documentation exists for this element. -- Accrued expenses [Member] Accrued Liabilities [Member] Patent and other assets purchased but not paid [Member] Patentandotherassetspurchasedbutnotpaid [Member] -- None. No documentation exists for this element. -- Other current liabilities [Member] Other Current Liabilities [Member] -- None. No documentation exists for this element. -- Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Fair Value Inputs, Liabilities, Quantitative Information [Line Items] Accrued liabilities Accrued Liabilities, Current Other current liabilities Other Liabilities, Current Stock Option Plan Summary [Abstract] -- None. No documentation exists for this element. -- Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Vested and exercisable [Member] Vestedand Exercisable [Member] -- None. No documentation exists for this element. -- Vested and expected to vest [Member] Vestedand Expectedto Vest [Member] -- None. No documentation exists for this element. -- Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Number of shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Weighted-average exercise price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Options granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Options granted Options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Options exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Options forfeited Options forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Restricted stock units granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted stock units forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Weighted-average remaining contractual life in years Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Aggregate instrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested and exercisable (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Vested and exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Vested and exercisable (weighted-average contractual life) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Vested and exercisable (intrinsic value) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Vested and expected to vest (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and expected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and expected to vest (weighted-average contractual life) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Vested and expected to vest (intrinsic value) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Segment Reporting -- None. No documentation exists for this element. -- Segment Reporting [Text Block] Segment Reporting Disclosure [Text Block] Short-term Investment [Abstract] -- None. No documentation exists for this element. -- Summary Of Investments In Available-For-Sale Securities [Table Text Block] Available-for-sale Securities [Table Text Block] Commitments and Contingencies Disclosure -- None. No documentation exists for this element. -- Commitments And Contingencies [Text Block] Commitments and Contingencies Disclosure [Text Block] Accrued and Other Current Liabilities -- None. No documentation exists for this element. -- Accrued And Other Current Liabilities [Text Block] Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Basic and Diluted Net Income Per Share Available To Common Stockholders [Abstract] -- None. No documentation exists for this element. -- Net income available to common stockholders: Net income available to common stockholders: [Abstract]0 -- None. No documentation exists for this element. -- Numerator: Numerator: [Abstract] -- None. No documentation exists for this element. -- Basic: Basic: [Abstract] -- None. No documentation exists for this element. -- Net income Allocation of net income to participating stockholders Undistributed Earnings Allocated to Participating Securities Net income available to common stockholders – basic Net Income (Loss) Available to Common Stockholders, Basic Diluted: Diluted: [Abstract] -- None. No documentation exists for this element. -- Undistributed earnings re-allocated to common stockholders Participating Securities, Distributed and Undistributed Earnings Net income available to common stockholders – diluted Net Income (Loss) Available to Common Stockholders, Diluted Denominator: Denominator: [Abstract] -- None. No documentation exists for this element. -- Basic shares: Basic shares: [Abstract] -- None. No documentation exists for this element. -- Weighted-average shares used in computing basic net income available to comon stockholders Weighted Average Number of Shares Outstanding, Basic Diluted shares: Diluted shares: [Abstract] -- None. No documentation exists for this element. -- Dilutive effect of stock options and restricted stock units using treasury-stock method Weighted Average Number Diluted Shares Outstanding Adjustment Weighted-average shares used in computing diluted net income available to common stockholders Weighted Average Number of Shares Outstanding, Diluted Net income per share: Net income per share: [Abstract] -- None. No documentation exists for this element. -- Basic Earnings Per Share, Basic Diluted Earnings Per Share, Diluted Net Income Available to Common Stockholders -- None. No documentation exists for this element. -- Net Income Available to Common Stockholders [Text Block] Earnings Per Share [Text Block] Intangible Assets, Net -- None. No documentation exists for this element. -- Amortization of intangible assets Amortization of Intangible Assets Restricted Stock Units Activity [Abstract] -- None. No documentation exists for this element. -- Restricted stock units granted [Member] Restricted Stock Units Granted [Member] -- None. No documentation exists for this element. -- Restricted stock units vested [Member] Restricted Stock Units Vested [Member] -- None. No documentation exists for this element. -- Restricted stock units forfeited [Member] Restricted Stock Units Forfeited [Member] -- None. No documentation exists for this element. -- Number of shares (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Weighted-average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in shares) Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited (in shares) Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Number of shares (in shares) Weighted-average grant date fair value Non-vested units (intrinsic value) Aggregate Instrinsic Value of Non-Vested Restricted Stock Units Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Outstanding, Intrinsic Value Revenue By Location [Table Text Block] Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] Long-Lived Assets Information By Location [Table Text Black] Disclosure on Geographic Areas, Long-Lived Assets Patent Assets [Abstract] -- None. No documentation exists for this element. -- Patent Assets, Net [Text Block] PatentAssetsTextBlock [Table Text Block] Patent assets. Estimated Future Amortization Expenses for Intangible Assets [Abstract] -- None. No documentation exists for this element. -- 2013 (remainder) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2014 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Four Total estimated future amortization expense Finite-Lived Intangible Assets, Net Property And Equipment, Net [Table Text Block] Property, Plant and Equipment [Table Text Block] Stock-Based Compensation -- None. No documentation exists for this element. -- Stock options [Member] Stock Options [Member] Restricted stock unit [Member] Restricted Stock [Member] Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Stock-based compensation expense Allocated Share-based Compensation Expense Unrecognized compensation cost related to unvested equity awards Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Weighted-average service period of unrecognized compensation cost related to unvested equity awards Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Non-employee stock-based compensation expense Share-based Goods and Nonemployee Services Transaction, Expense Schedule of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment, type [Axis] Property, Plant and Equipment, Type [Axis] Property and equipment, type [Domain] Property, Plant and Equipment, Type [Domain] Property and equipment, types [Member] Property, Plant and Equipment, Other Types [Member] Capitalized Stock Based Compensation [Axis] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Capitalized Stock Based Compensation Expense [Domain] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Internal-use software [Member] Internal Use Software [Member] -- None. No documentation exists for this element. -- Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Depreciation and amortization expense Depreciation, Depletion and Amortization Stock-based compensation capitalized as part of internal-use software Capitalized Stock Based Compensation Expense Stock-based compensation capitalized as part of the cost of internal-use software Nature of Business -- None. No documentation exists for this element. -- Nature Of Business [Text Block] Nature of Operations [Text Block] Property and Equipment, Net [Abstract] -- None. No documentation exists for this element. -- Internal-use software [Member] Software Development [Member] Computer, equipment and software [Member] Computer Equipment [Member] Furniture and fixtures [Member] Furniture and Fixtures [Member] Leasehold improvements [Member] Leasehold Improvements [Member] Work-in-progress [Member] Asset under Construction [Member] Internal-use software Capitalized Computer Software, Gross Computer, equipment and software Machinery and Equipment, Gross Furniture and fixtures Furniture and Fixtures, Gross Leasehold improvements Leasehold Improvements, Gross Work-in-progress Construction in Progress, Gross Total property, plant and equipment, gross Property, Plant and Equipment, Gross Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment, net Property, Plant and Equipment, Net Anti-Dilutive Securities Not Included In Diluted Shares Outstanding Calculation [Abstract] -- None. No documentation exists for this element. -- Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Weighted-average anti-dilutive securities [Domain] Antidilutive Securities, Name [Domain] Stock options outstanding [Member] Restricted stock units outstanding [Member] Shares of common stock subject to repurchase [Member] Common Stock Subjectto Repurchase [Member] -- None. No documentation exists for this element. -- Weighted-average: Weighted-average: [Abstract] -- None. No documentation exists for this element. -- Weighted-average anti-dilutive securities Weighted-Average Anti-Dilutive Securities Weighted-average anti-dilutive securities not included in the calculation for diluted shares outstanding Summary of Investments in Available-for-Sale Securities [Abstract] -- None. No documentation exists for this element. -- Investment Holdings [Table] Investment Holdings [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investment Type Categorization [Domain] Municipal bonds [Member] Municipal Bonds [Member] Commercial paper [Member] Commercial Paper [Member] Corporate bonds [Member] Corporate Bond Securities [Member] Investment Holdings [Line Items] Investment Holdings [Line Items] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Estimated Fair Value Available-for-sale Securities, Fair Value Disclosure Expected Future Annual Amortization Expense of Patent Assets [Abstract] -- None. No documentation exists for this element. -- Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Patents [Member] Patents [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Total estimated future amortization expense Patent assets, net Carrying amount of finite-lived patent assets after accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. Condensed Consolidated Statements of Operations (Unaudited) [Abstract] -- None. No documentation exists for this element. -- Revenue Revenues Cost of revenue Cost of Revenue Selling, general and administrative expenses Selling, General and Administrative Expense Gain on sale of patent assets, net Gain (Loss) on Sale of Other Assets Operating income Operating Income (Loss) Other income (expense), net Interest and Other Income Income before provision for income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income Net income available to common stockholders: Net income available to common stockholders: [Abstract] -- None. No documentation exists for this element. -- Basic Diluted Net income per common share: Net income per common share: [Abstract] -- None. No documentation exists for this element. -- Weighted-average shares used in computing net income per common share: Weighted-average shares used in computing net income per common share: [Abstract] -- None. No documentation exists for this element. -- Basic Diluted Accrued And Other Current Liabilities [Table Text Block] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Basis of Presentation and Significant Accounting Policies -- None. No documentation exists for this element. -- Basis of Presentation And Significant Accounting Policies [Text Block] Significant Accounting Policies [Text Block] Operating Leases, Rent Expense Operating Leases, Rent Expense Condensed Consolidated Balance Sheets (Unaudited) [Abstract] -- None. No documentation exists for this element. -- Assets Assets [Abstract] Current assets: Current assets: [Abstract] -- None. No documentation exists for this element. -- Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Short-term investments Short-term Investments Accounts receivable Accounts Receivable, Gross, Current Other receivables Other Receivables Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Deferred tax assets Deferred Tax Assets, Gross, Current Total current assets Assets, Current Patent assets, net Property and equipment, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Other assets Other Assets, Noncurrent Total assets Assets Liabilities and stockholders' equity Liabilities and Equity [Abstract] Current liabilities: Current liabilities: [Abstract] -- None. No documentation exists for this element. -- Accounts payable Accounts Payable, Current Deferred revenue Deferred Revenue, Current Deferred payment obligations Other Long-term Debt, Current Total current liabilities Liabilities, Current Deferred revenue, less current portion Deferred Revenue, Noncurrent Deferred tax liabilities Noncurrent Deferred Tax Liabilities Represents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdictionto which the entity is obligated to pay income tax, as well as the noncurrent portion of the amount recognized for unceratin tax position as of the balance sheet date. Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Common stock Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Related-Party Transactions -- None. No documentation exists for this element. -- Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Subscription fee revenue from related party transactions Related Party Transaction, Amounts of Transaction Revenue by Location and Generated by Country [Abstract] -- None. No documentation exists for this element. -- Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Segment, Geographical [Domain] United States [Member] United States [Member] -- None. No documentation exists for this element. -- Japan [Member] Japan [Member] -- None. No documentation exists for this element. -- Taiwan [Member] Taiwan [Member] Other [Member] Other Country [Member] -- None. No documentation exists for this element. -- United States (in dollars) Disclosure on Geographic Areas, Revenue from External Customers Attributed to Entity's Country of Domicile United States Country of Domicile Percent of Total Revenue Country Of Domicile Percent Of Total Revenue Other foreign country (in dollars) Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries Other foreign country Foreign Country Percent of Total Revenue Foreign Country Percent Of Total Revenue Total revenue (in dollars) Total revenue Percent of Total Revenue Percent of Total Revenue Patent Assets, Net [Abstract] -- None. No documentation exists for this element. -- Change in Patent Assets [Axis] Change in Patent Assets [Axis] -- None. No documentation exists for this element. -- Change in Patent Assets [Domain] ChangeinIntangibleAssets [Domain] -- None. No documentation exists for this element. -- Additions [Member] Additions [Member] -- None. No documentation exists for this element. -- Patent assets Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible Assets, Net [Text Block] Intangible Assets Disclosure [Text Block] Financial Assets Measured at Fair Value [Abstract] -- None. No documentation exists for this element. -- Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Muncipal bonds [Member] Muncipal Bonds Cash Equiv [Member] -- None. No documentation exists for this element. -- U.S. government and agency securities [Member] US Government Corporations and Agencies Securities [Member] Money market funds [Member] Money Market Funds [Member] Corporate bonds [Member] Corporate Bonds [Member] -- None. No documentation exists for this element. -- Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] Cash equivalents Cash equivalents [Abstract] -- None. No documentation exists for this element. -- Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Short-term investments Short-term Investments [Abstract] Short-term investments Investments, Fair Value Disclosure Income Taxes [Abstract] -- None. No documentation exists for this element. -- Effective tax rate, including the impact of discrete benefit items Effective Income Tax Rate, Continuing Operations Condensed Consolidated Statements of Cash Flows (Unaudited) [Abstract] -- None. No documentation exists for this element. -- Cash flows from operating activities Cash flows from operating activities [Abstract] -- None. No documentation exists for this element. -- Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities: [Abstract] -- None. No documentation exists for this element. -- Depreciation and amortization Stock-based compensation Share-based Compensation Excess tax benefit from stock-based compensation Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities Imputed interest on deferred payment obligations Imputed interest on deferred payment obligations Imputed interest on deferred payment obligations. Gain on sale of patent assets Amortization of premium on investments Accretion (Amortization) of Discounts and Premiums, Investments Deferred taxes Deferred Income Tax Expense (Benefit) Other Other Noncash Income (Expense) Changes in assets and liabilities: Changes in assets and liabilities: [Abstract] -- None. No documentation exists for this element. -- Accounts receivable Increase (Decrease) in Accounts Receivable Other receivables Increase (Decrease) in Other Receivables Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities Cash flows from investing activities [Abstract] -- None. No documentation exists for this element. -- Purchases of investments classified as available-for-sale Payments to Acquire Available-for-sale Securities Maturities and sale of investments classified as available-for-sale Proceeds from Sale and Maturity of Available-for-sale Securities Decrease in restricted cash Increase (Decrease) in Restricted Cash Purchases of intangible assets Payments to Acquire Intangible Assets Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Acquisitions of patent assets Payments to Acquire Other Productive Assets Proceeds from sale of patent assets Proceeds from Sale of Intangible Assets Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Cash flows from financing activities [Abstract] -- None. No documentation exists for this element. -- Repayments of principal on deferred payment obligations Repayments of Other Debt Proceeds from exercise of stock options and other common stock issuances Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Excess tax benefit from stock-based compensation Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Non-cash investing and financing activities Non-cash investing and financing activities [Abstract] -- None. No documentation exists for this element. -- Change in patent assets purchased and accrued but not paid Change in patent assets purchased and accrued but not paid. Change in other assets purchased and accrued but not paid Change in other assets purchased and accrued but not paid Change in other assets purchased and accrued but not paid Patent Assets, Net [Text Block] ScheduleofPatentAssetsTableTextBlock [Table Text Block] -- None. No documentation exists for this element. -- Expected Future Annual Amortization Of Patent Assets [Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Weighted Average Fair Value Assumptions for Stock-Based Compensation [Abstract] -- None. No documentation exists for this element. -- Risk-free rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Range [Axis] Range [Axis] Range [Domain] Range [Domain] -- None. No documentation exists for this element. -- Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Weighted Average [Member] Weighted Average [Member] Patent assets, useful life Finite-Lived Intangible Asset, Useful Life Amortization of patent assets Fair Value Measurements [Abstract] Fair Value Measurements [Abstract] Fair Value Measurements [Text Block] Fair Value Disclosures [Text Block] Long-lived Asset Information by Location [Abstract] -- None. No documentation exists for this element. -- Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] United States Disclosure on Geographic Areas, Long-Lived Assets in Entity's Country of Domicile Japan Disclosure on Geographic Areas, Long-Lived Assets in Foreign Countries Total long-lived assets Long-Lived Assets Basis of Presentation and Significant Accounting Policies (Abstract) -- None. No documentation exists for this element. -- Basis of Presentation [Policy Text Block] Basis of Accounting, Policy [Policy Text Block] Recently Adopted Accounting Standards [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Short-term Investments [Text Block] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Basic and Diluted Net Income Per Share Available To Common Stockholders [Table Text Block] Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Anti-Dilutive Securities Not Included In Diluted Shares Outstanding Calculation [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Stockholders' Equity [Text Block] Stockholders' Equity Note Disclosure [Text Block] Related Party Transactions [Text Block] Related Party Transactions Disclosure [Text Block] Activity Under Equity Award Plans And Related Information [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Restricted Stock Unit Activity [Table Text Block] Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Weighted-Average Assumptions Used To Estimate The Fair Value Of Stock Options [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Income Taxes [Text Block] Income Tax Disclosure [Text Block] Number of reportable segments Number of Reportable Segments Fair Value Measurements -- None. No documentation exists for this element. -- Finance Assets Measured At Fair Value On A Recurring Basis [Table Text Block] Fair Value, Assets Measured on Recurring Basis [Table Text Block] Intangible Assets, Net [Abstract] -- None. No documentation exists for this element. -- Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Trademarks [Member] Trademarks [Member] Proprietary data and models [Member] Proprietary Business Processes [Member] -- None. No documentation exists for this element. -- Developed technology [Member] Developed Technology Rights [Member] Covenant not to compete [Member] Noncompete Agreements [Member] Customer relationships [Member] Customer Relationships [Member] Other intangible assets [Member] Other Intangible Assets [Member] Intangible assets in-progress [Member] Intangible Assetsin Progress [Member] -- None. No documentation exists for this element. -- Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Carrying amount Net carrying amount Intangible Assets Net [Member] Intangible Assets Net [Member] -- None. No documentation exists for this element. -- Intangible Assets, Net [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Expected Future Annual Amortization Of Intangible Assets [Text Block] Document and Entity Information [Abstract] -- None. No documentation exists for this element. -- Document Information [Table] Document Information [Table] Document Information, Document [Axis] Document Information, Document [Axis] Document [Domain] Document [Domain] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding