Debt Disclosure [Abstract] 2019 Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three Total Long-term Debt, Gross Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accounts Receivable, Net [Member] Accounts Receivable [Member] Prepaid Expenses and Other Current Assets [Member] Prepaid Expenses and Other Current Assets [Member] Other Long-term Assets [Member] Other Noncurrent Assets [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Total contract assets, net Contract with Customer, Asset, after Allowance for Credit Loss Restructuring and Related Activities [Abstract] Facility-related costs Facility-Related Costs Facility-Related Costs Severance costs Severance Costs Share-based payments Restructuring and Related Activities, Share-based Compensation Restructuring and Related Activities, Share-based Compensation Asset impairment Asset Impairment Charges Restructuring and asset impairment charges Restructuring, Settlement and Impairment Provisions Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2020 Convertible Notes [Member] Two Thousand And Twenty Convertible Notes [Member] Two Thousand And Twenty Convertible Notes [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Convertible Debt [Member] Convertible Debt [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Principal outstanding Less: Unamortized debt discount Debt Instrument, Unamortized Discount Less: Unamortized debt issuance costs Unamortized Debt Issuance Expense Carrying amount Long-term Debt Equity component Debt Instrument, Convertible, Carrying Amount of Equity Component Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Line of Credit [Member] Line of Credit [Member] Term Loan A Facility [Member] Term Loan A Facility [Member] Term Loan A Facility [Member] Term Loan B Facility [Member] Term Loan B Facility [Member] Term Loan B Facility [Member] Refinancing Agreement No.1 [Member] Refinancing Agreement Number One [Member] Refinancing Agreement Number One [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Prime Rate [Member] Prime Rate [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum [Member] Minimum [Member] Number of wholly-owned subsidiaries Number of Wholly Owned Subsidiaries Number of Wholly Owned Subsidiaries Debt instrument term Debt Instrument, Term Debt issued Debt Instrument, Face Amount Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Variable interest rate (percent) Debt Instrument, Basis Spread on Variable Rate LIBOR floor Debt Instrument, Variable Interest Rate, Floor Debt Instrument, Variable Interest Rate, Floor Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Excess cash flow payment Line of Credit Facility, Covenant Compliance, Excess Cash Flow Payment Line of Credit Facility, Covenant Compliance, Excess Cash Flow Payment Income Tax Disclosure [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Foreign withholding tax Effective Income Tax Rate Reconciliation, Withholding Tax, Foreign, Amount Effective Income Tax Rate Reconciliation, Withholding Tax, Foreign, Amount Federal income tax Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income tax Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign income tax Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Change in indefinite reinvestment assertion Tax Cuts and Jobs Act, Incomplete Accounting, Income Tax Expense (Benefit), Change in Reinvestment Assertion Tax Cuts and Jobs Act, Incomplete Accounting, Income Tax Expense (Benefit), Change in Reinvestment Assertion Change in deferred tax liabilities Change in Net Deferred Tax Liabilities, Amount Change in Net Deferred Tax Liabilities, Amount Change in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Change in Unrecognized Tax Benefits, Amount Effective Income Tax Rate Reconciliation, Change in Unrecognized Tax Benefits, Amount Income tax expense (benefit) Income Tax Expense (Benefit) Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Warrants to Purchase Common Stock [Member] Warrants to Purchase Common Stock [Member] Warrants to Purchase Common Stock [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Equity Option [Member] Equity Option [Member] Call option, shares Call Option Shares Number of shares which may be purchased under the convertible call option. Common stock strike price (in usd per share) Derivative, Price Risk Option Strike Price Warrants outstanding, shares Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrant exercise price (in usd per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants outstanding (in shares) Class of Warrant or Right, Outstanding Investments [Abstract] Available-For-Sale And Other Investment Securities Schedule Of Available For Sale Securities Including Cash and Cash Equivalents [Table Text Block] Schedule Of Available For Sale Securities Including Cash and Cash Equivalents [Table Text Block] Available-For-Sale Debt Investments At Fair Value Investments Classified by Contractual Maturity Date [Table Text Block] Discontinued Operations and Disposal Groups [Abstract] Income from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Restructuring and Asset Impairment Charges Restructuring, Impairment, and Other Activities Disclosure [Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Short-term marketable securities Marketable Securities, Current Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Inventory Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets Total current assets Assets, Current Long-term marketable securities Marketable Securities, Noncurrent Property and equipment, net Property, Plant and Equipment, Net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Right-of-use assets Operating Lease, Right-of-Use Asset Other long-term assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Unearned revenue Deferred Revenue, Current Current portion of long-term debt Long-term Debt, Current Maturities Total current liabilities Liabilities, Current Unearned revenue, less current portion Deferred Revenue, Noncurrent Long-term debt, less current portion Long-term Debt, Excluding Current Maturities Deferred tax liabilities, net Deferred Income Tax Liabilities, Net Long-term lease liabilities Operating Lease, Liability, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Contingencies (Note 11) Commitments and Contingencies Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding Preferred Stock, Value, Issued Common stock, $0.001 par value, 250,000 shares authorized; 127,313 shares issued and 125,156 shares outstanding as of June 30, 2019; and 125,781 shares issued and 123,975 shares outstanding as of December 31, 2018 Common Stock, Value, Issued Treasury stock, 2,157 shares and 1,806 shares as of June 30, 2019 and December 31, 2018, respectively, at cost Treasury Stock, Value Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Accounts Payable and Accrued Expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Share-based Payment Arrangement [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Rovi 2008 Plan [Member] Rovi 2008 Equity Incentive Plan [Member] Rovi 2008 Equity Incentive Plan [Member] TiVo 2008 Plan [Member] TiVo Inc. Amended and Restated 2008 Equity Incentive Award Plan [Member] TiVo Inc. Amended and Restated 2008 Equity Incentive Award Plan [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] TiVo Solutions [Member] TiVo Inc. [Member] TiVo Inc. [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Stock Options [Member] Share-based Payment Arrangement, Option [Member] Restricted Awards [Member] Restricted Awards [Member] Restricted Awards [Member] Restricted Stock [Member] Restricted Stock [Member] Performance-based Restricted Stock Units [Member] Performance-based Restricted Stock Units [Member] Performance-based Restricted Stock Units [Member] Performance-Based Restricted Stock Awards [Member] Performance Based Restricted Stock Awards [Member] Performance Based Restricted Stock Awards [Member] ESPP Plan [Member] Employee Stock [Member] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Vesting period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Award vesting rights Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Contractual term of stock options granted (years) Share Based Compensation Arrangement By Share Based Payment Award, Contractual Term Share based compensation arrangement by share based payment award, contractual term Reserved for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Available for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Award requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Potential shares to be issued upon vesting Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Potential Shares to be Issued Upon Vesting, Percent Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Potential Shares to be Issued Upon Vesting, Percent Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Number of purchase periods Share-based Compensation, Number of Purchase Periods Share-based Compensation, Number of Purchase Periods Offering purchase period Share-based Compensation Arrangement, Offering Purchase Period Share-based Compensation Arrangement, Offering Purchase Period Offering period Share-based Compensation Arrangement, Offering Period Share-based Compensation Arrangement, Offering Period Percentage purchase price of common stock for employees Percentage purchase price of common stock for employees Percentage purchase price of common stock for employees Equity-based compensation Share-based Payment Arrangement, Noncash Expense Unrecognized compensation cost Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Weighted average period of recognition of unrecognized compensation cost (years) Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Awarded and unvested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Aggregate fair value of vested restricted stock Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Weighted average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Restricted awards (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 ESPP shares (in dollars per share) Share based compensation arrangement by share based payment award equity instruments, employee purchase share rights, weighted average grant date fair value Share based compensation arrangement by share based payment award equity instruments, employee purchase share rights, weighted average grant date fair value Equity-based compensation Share-based Payment Arrangement, Noncash Expense [Abstract] Pre-tax equity-based compensation, excluding amounts included in restructuring expense Pre-tax equity-based compensation, included in restructuring expense Equity-based Compensation Share-based Payment Arrangement [Text Block] Leases [Abstract] Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Corporate Offices, Data Centers and Certain Equipment [Member] Corporate Offices, Data Centers and Certain Equipment [Member] Corporate Offices, Data Centers and Certain Equipment [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Operating Lease Right-of-use Asset [Member] Operating Lease Right-of-use Asset [Member] Operating Lease Right-of-use Asset [Member] Operating Lease Liability [Member] Operating Lease Liability [Member] Operating Lease Liability [Member] Maximum [Member] Maximum [Member] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Effect of new accounting principle New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Term of extension option Lessee, Operating Lease, Renewal Term Period to terminate option Lessee, Operating Lease, Option to Terminate, Period Lessee, Operating Lease, Option to Terminate, Period Expected term of lease Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Expected recording of right-of-use asset Lessee, Operating Lease, Lease Not yet Commenced, Expected Right-of-Use Asset Lessee, Operating Lease, Lease Not yet Commenced, Expected Right-of-Use Asset Expected recording of lease liability Lessee, Operating Lease, Lease Not yet Commenced, Expected Lease Liability Lessee, Operating Lease, Lease Not yet Commenced, Expected Lease Liability Expected de-recognition of right-of-use asset Lessee, Operating Lease, Lease Not yet Commenced, Expected De-recognition of Right-of-Use Asset Lessee, Operating Lease, Lease Not yet Commenced, Expected De-recognition of Right-of-Use Asset Expected de-recognition of lease liability Lessee, Operating Lease, Lease Not yet Commenced, Expected De-recognition of Lease Liability Lessee, Operating Lease, Lease Not yet Commenced, Expected De-recognition of Lease Liability Equity [Abstract] 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] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Restricted Awards [Member] Convertible Notes Payable [Member] Convertible Notes Payable [Member] Warrants [Member] Warrant [Member] 2021 Convertible Notes [Member] Two Thousand And Twenty-One Convertible Notes [Member] Two Thousand And Twenty-One Convertible Notes [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Weighted average potential shares excluded from the calculation of Diluted EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Product [Member] Product Operating Segment [Member] Product Operating Segment [Member] Intellectual Property Licensing [Member] Intellectual Property Licensing [Member] Intellectual Property Licensing [Member] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Transferred at Point in Time [Member] Transferred at Point in Time [Member] Transferred over Time [Member] Transferred over Time [Member] Out-of-license settlements [Member] Timing of Transfer Out-of-License Settlements [Member] Timing of Transfer Out-of-License Settlements [Member] Total Revenues, net Revenue from Contract with Customer, Excluding Assessed Tax Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Facility-related Costs [Member] Facility Closing [Member] Severance Costs [Member] Employee Severance [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Accrued restructuring costs Restructuring Reserve Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Treasury Stock [Member] Treasury Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Accumulated Other Comprehensive Loss [Member] AOCI Attributable to Parent [Member] Accumulated Deficit [Member] Retained Earnings [Member] Statement Statement [Line Items] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Common shares, beginning balance (in shares) Common Stock, Shares, Issued Treasury shares, beginning balance (in shares) Treasury Stock, Shares Cumulative effect adjustment Cumulative Effect of New Accounting Principle in Period of Adoption Net loss Net Income (Loss) Attributable to Parent Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Issuance of common stock under employee stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Issuance of common stock under employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Issuance of restricted stock, net (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock, net Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Equity-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Dividends Dividends, Common Stock, Cash Equity component related to repurchase of 2020 Convertible Notes Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature Withholding taxes related to net share settlement of restricted stock units (in shares) Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Withholding taxes related to net share settlement of restricted awards Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Ending balance Common shares, ending balance (in shares) Treasury shares, ending balance (in shares) Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Weighted Average Potential Anti-Dilutive Common Shares Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Significant Unobservable Inputs (Level 3) [Member] Fair Value, Inputs, Level 3 [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Auction Rate Securities [Member] Auction Rate Securities [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Cubiware Contingent Consideration [Member] Cubiware Contingent Consideration [Member] Cubiware Contingent Consideration [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, General and Administrative Expenses [Member] Selling, General and Administrative Expenses [Member] Interest Expense [Member] Interest Expense [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Loss included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized loss reclassified on sale Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Unrealized Gain (Loss) Adjustment on Sale Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Unrealized Gain (Loss) Adjustment on Sale Balance at end of period Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Gain (loss) included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Balance at end of period Increase (decrease) during period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Interest rate of debt, stated percentage Debt Instrument, Interest Rate, Stated Percentage Outstanding Principal Less: Current portion of long-term debt Goodwill and Intangible Assets Disclosure [Abstract] Goodwill And Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock [Member] Class of Stock [Line Items] Class of Stock [Line Items] Initial conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price Share price (in us dollars per share) Share Price Authorized stock repurchase amount Stock Repurchase Program, Authorized Amount Stock repurchase (in shares) Treasury Stock, Shares, Acquired Remaining number of shares authorized to be repurchased Stock Repurchase Program, Remaining Authorized Repurchase Amount Tax withholding for share-based compensation (shares) Tax withholding for share-based compensation Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Dividend payments Payments of Dividends Statement of Comprehensive Income [Abstract] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Change in foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Change in unrealized gains (losses) on marketable securities Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Less: Reclassification adjustment on sale Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other comprehensive income (loss), net of tax Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Debt and Interest Rate Swaps Debt Disclosure [Text Block] Remainder of 2019 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Total Finite-Lived Intangible Assets, Net Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments [Member] Operating Segments [Member] Corporate [Member] Corporate, Non-Segment [Member] Subsegments [Axis] Subsegments [Axis] Subsegments [Domain] Subsegments [Domain] Platform Solutions [Member] Platform Solutions [Member] Platform Solutions [Member] Software and Services [Member] Software and Services [Member] Software and Services [Member] Other [Member] Other Subsegment [Member] Other Subsegment [Member] US Pay TV Providers [Member] US Pay TV Providers [Member] US Pay TV Providers [Member] Consumer Electronics Manufacturers [Member] Consumer Electronics Manufacturers [Member] Consumer Electronics Manufacturers [Member] New Media, International Pay TV Providers and Other [Member] New Media, International Pay TV Providers and Other [Member] New Media, International Pay TV Providers and Other [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of reportable segments Number of Reportable Segments Revenues, net: Adjusted Operating Expenses Adjusted Operating Expenses Operating expenses excluding depreciation, amortization of intangible assets, restructuring and asset impairment charges, equity-based compensation, contested proxy election costs, transaction, transition and integration expenses and changes in contingent consideration. Adjusted EBITDA Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization Earnings excluding depreciation, amortization of intangible assets, restructuring and asset impairment charges, equity-based compensation, contested proxy election costs, transaction, transition and integration expenses and changes in contingent consideration Depreciation Depreciation Amortization of intangible assets Amortization of Intangible Assets Restructuring and asset impairment charges Separation costs Separation Costs Separation Costs Transition and integration costs Transition and Integration Costs Transition and Integration Costs Earnout amortization Business Combinations, Earnout Settlement Business Combinations, Earnout Settlement CEO transition cash costs Officers' Transition Compensation Costs Officers' Transition Compensation Costs Remeasurement of contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Operating income (loss) Operating Income (Loss) Interest expense Interest Expense Interest income and other, net Other Nonoperating Income (Expense) (Loss) gain on interest rate swaps Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Loss on debt extinguishment Loss from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Fair Value Measurements Fair Value Disclosures [Text Block] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Expected timing of satisfaction Revenue, Remaining Performance Obligation, Percentage Cover page. Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] TiVo Corporation [Member] TiVo Corporation [Member] TiVo Corporation [Member] Repayments of convertible debt Repayments of Convertible Debt Shares issued per $1,000 principal amount Debt Instrument, Convertible, Conversion Ratio Initial conversion price to principal of notes (in usd per share) Debt Instrument, Convertible, Conversion Ratio, Cash Conversion Ratio to Principal Amount Debt Instrument, Convertible, Conversion Ratio, Cash Conversion Ratio to Principal Amount Convertible notes, percentage of principal to be paid on notes redeemed Convertible notes, percentage of principal to be paid on notes redeemed Percentage of principal to be paid on notes redeemed. Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Cash [Member] Cash [Member] Money Markets Funds [Member] Money Market Funds [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Financial Instruments [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] U.S. Treasuries / Agencies [Member] US Treasury and Government [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Fair Value Debt Securities, Available-for-sale Cash, cash equivalents and marketable securities Cash, Cash Equivalents and Marketable Securities Cash, Cash Equivalents and Marketable Securities Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Description of Business Business Description [Policy Text Block] The entire disclosure for the business description. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of Presentation and Principles of Consolidation Basis of Presentation and Principles Of Consolidation [Policy Text Block] The entire disclosure for the basis of presentation concepts and principles of consolidation. Basis of presentation describes the underlying basis used to prepare the financial statements. Principles of consolidation discloses the accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. Use of Estimates Use of Estimates, Policy [Policy Text Block] Right-of-Use Assets and Lease Liabilities Lessee, Leases [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Schedule of Segment Reporting Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Assumptions Used To Value Equity-Based Payments Schedule Of Share Based Payment Award Options And Employee Stock Purchase Plan Valuation Assumptions [Table Text Block] Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans and option plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Weighted Average Fair Value Per Share Of Equity-Based Awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] Restricted Awards Activity Nonvested Restricted Stock Shares Activity [Table Text Block] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] TiVo Tradename [Member] TiVo Tradename [Member] TiVo Tradename [Member] Acquired Indefinite-lived Intangible Assets [Line Items] Acquired Indefinite-lived Intangible Assets [Line Items] Indefinite-Lived Trade Names Indefinite-Lived Trade Names Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Acquired 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] Developed Technology and Patents [Member] Developed Technology And Patents [Member] Developed Technology and Patents [Member] Existing Contracts and Customer Relationships [Member] Existing Contracts And Customer Relationships [Member] Existing Contracts and Customer Relationships [Member] Content Databases and Other [Member] Database Rights [Member] Trademarks / Tradenames [Member] Trademarks and Trade Names [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Gross Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Total Intangible Assets, Gross Intangible Assets, Gross (Excluding Goodwill) Total Intangible Assets, Net Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] $250M June 2013 Swaps [Member] Two Hundred Fifty Million June Two Thousand Thirteen Swaps [Member] Two Hundred Fifty Million June Two Thousand Thirteen Swaps [Member] $125M September 2014 Swaps [Member] One Hundred Twenty Five Million September Twenty Fourteen Swaps [Member] One Hundred Twenty Five Million September Twenty Fourteen Swaps [Member] $200M September 2014 Swaps [Member] Two Hundred Million September Twenty Fourteen Swaps [Member] Two Hundred Million September Twenty Fourteen Swaps [Member] Notional amount of interest rate swaps Derivative, Notional Amount Fixed interest rate (percent) Derivative, Fixed Interest Rate Carrying Value and Par Value of Debt Schedule of Long-term Debt Instruments [Table Text Block] Convertible Debt Convertible Debt [Table Text Block] Components of Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-term Debt [Table Text Block] Summary of Interest Rate Swaps Schedule of Interest Rate Derivatives [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Tivo Integration Restructuring Plan [Member] Tivo Integration Restructuring Plan [Member] Tivo Integration Restructuring Plan [Member] Restructuring Expense Restructuring Charges Accrual adjustment Fixed lease cost Operating Lease, Cost Variable lease cost Variable Lease, Cost Short-term lease cost Short-term Lease, Cost Less: Sublease income Sublease Income Total operating lease cost Lease, Cost Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Impairment losses Contract with Customer, Asset, Credit Loss Expense (Reversal) Revenue recognized Contract with Customer, Liability, Revenue Recognized Revenue from remaining performance obligation Revenue, Remaining Performance Obligation, Amount Finite-Lived Intangible Assets by Major Class [Axis] Patents [Member] Patents [Member] Asset Acquisition [Axis] Asset Acquisition [Axis] Asset Acquisition [Axis] Asset Acquisition [Domain] Asset Acquisition [Domain] [Domain] for Asset Acquisition [Axis] Portfolio of Patents [Member] Portfolio of Patents [Member] Portfolio of Patents [Member] Payments for purchase of patents Payments to Acquire Intangible Assets Acquired finite-lived intangible assets weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Assets And Liabilities Measured And Recorded At Fair Value On A Recurring Basis Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Summary Of Level 3 Auction Rate Securities Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Outstanding Debt Fair Value Schedule of Outstanding Debt Fair Value [Table Text Block] Schedule of outstanding debt fair value [Table Text Block] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue Benchmark [Member] Revenue Benchmark [Member] Accounts Receivable [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Shaw Communications [Member] Shaw Communications [Member] Shaw Communications [Member] AT&T [Member] AT&T Inc. [Member] AT&T Inc. [Member] Virgin Media [Member] Virgin Media [Member] Virgin Media [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration risk (percent) Concentration Risk, Percentage Income Taxes Income Tax Disclosure [Text Block] Weighted average shares used in computing basic per share amounts Weighted Average Number of Shares Outstanding, Basic Dilutive effect of equity-based compensation awards Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average shares used in computing diluted per share amounts Weighted Average Number of Shares Outstanding, Diluted Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Fair Value, Recurring [Member] Fair Value, Recurring [Member] Fair Value Assets, Nature of Assets [Axis] Fair Value, by Balance Sheet Grouping [Axis] Fair Value, by Balance Sheet Grouping [Axis] Fair Value Assets, Nature of Assets [Domain] Fair Value Assets Nature Of Assets [Domain] Fair Value Assets, Nature of Assets [Domain] Cash and cash equivalents/Short-term marketable securities [Member] Current Assets [Member] Current Assets [Member] Long-term marketable securities [Member] Non Current Assets [Member] Non-Current Assets [Member] Other long-term liabilities [Member] Non Current Liabilities [Member] Non Current Liabilities [Member] Money Market Funds [Member] U.S. Treasuries / Agencies [Member] US Government Agencies Debt Securities [Member] Interest Rate Swaps [Member] Interest Rate Swap [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Cash and Cash Equivalents [Member] Cash Equivalents [Member] Quoted Prices In Active Markets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Fair value assets measured on recurring basis Assets, Fair Value Disclosure Fair value liabilities measured on a recurring basis Financial and Nonfinancial Liabilities, Fair Value Disclosure Schedules of Concentration of Risks Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Revenue By Contract Type Disaggregation of Revenue [Table Text Block] Revenue from External Customers by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Contract Assets with Customer Contract with Customer, Asset and Liability [Table Text Block] Income Statement [Abstract] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Licensing, Services and Software [Member] Licensing, Services and Software [Member] Licensing, Services and Software [Member] Hardware [Member] Hardware [Member] Hardware [Member] Revenues, net: Revenues [Abstract] Costs and expenses: Cost of Revenue [Abstract] Cost of licensing, services and software revenues, excluding depreciation and amortization of intangible assets Cost of Licensing Revenue Excluding Depreciation and Amortization of Intangible Assets Cost of Licensing Revenue Excluding Depreciation and Amortization of Intangible Assets Cost of hardware revenues, excluding depreciation and amortization of intangible assets Cost of Hardware Revenue Excluding Depreciation and Amortization of Intangible Assets Cost of Hardware Revenue Excluding Depreciation and Amortization of Intangible Assets Research and development Research and Development Expense Selling, general and administrative Selling, General and Administrative Expense Total costs and expenses Costs and Expenses Loss on debt extinguishment Income tax expense Loss from continuing operations, net of tax Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Net loss Basic loss per share: Earnings Per Share, Basic [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Basic loss per share (in dollars per share) Earnings Per Share, Basic Weighted average shares used in computing basic per share amounts (in shares) Diluted loss per share: Earnings Per Share, Diluted [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Diluted loss per share (in dollars per share) Earnings Per Share, Diluted Weighted average shares used in computing diluted per share amounts (in shares) Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States [Member] UNITED STATES Canada [Member] CANADA United Kingdom [Member] UNITED KINGDOM Rest of world [Member] Rest of World [Member] Rest of World [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Amount [Member] Reported Value Measurement [Member] Fair Value [Member] Estimate of Fair Value Measurement [Member] Total Long-term debt Long-term Debt, Fair Value Summary of Goodwill Activity Schedule of Goodwill [Table Text Block] Summary of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Estimated Amortization Expense In Future Periods Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Financial Statement Details Additional Financial Information Disclosure [Text Block] Restructuring and Asset Impairment Charges Restructuring and Related Costs [Table Text Block] Restructuring Activities Related to Plans Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Long-term Debt [Member] Long-term Debt [Member] Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Threshold trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Minimum percentage of common stock price on applicable conversion price resulting in the noteholders ability to convert the notes into cash or stock Minimum percentage of common stock price on applicable conversion price resulting in the noteholders ability to convert the notes into cash or stock Minimum percentage of common stock price on applicable conversion price resulting in the noteholders ability to convert the notes into cash or stock Threshold business days Debt Instrument, Convertible, Threshold Business Days Debt Instrument, Convertible, Threshold Business Days Measurement period Debt Instrument, Convertible, Threshold Consecutive Trading Days, Debt Instrument Trading Price Condition Debt Instrument, Convertible, Threshold Consecutive Trading Days, Debt Instrument Trading Price Condition Maximum percentage of trading price on product sale price resulting in conversion of notes into cash or stock Maximum percentage of trading price on product sale price resulting in conversion of notes into cash or stock If the trading price per note for each day of the measurement period was less than this percentage of the product of the last reported sale price of the Company's common stock and the conversion rate on such day, the notes are eligible for conversion. Non-convertible borrowing rate (percent) Debt Instrument, Interest Rate, Effective Percentage Debt issuance costs Debt Issuance Costs, Gross Outstanding principal repurchase amount Debt Instrument, Repurchased Face Amount Repayments of long-term debt Repayments of Long-term Debt Liability component amount Debt Instrument, Repurchase Amount, Convertible, Liability Component, Amount Debt Instrument, Repurchase Amount, Convertible, Liability Component, Amount Equity component amount Debt Instrument, Repurchase Amount, Convertible, Equity Component, Amount Debt Instrument, Repurchase Amount, Convertible, Equity Component, Amount Loss on debt extinguishment Schedule of Goodwill [Table] Schedule of Goodwill [Table] Product [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning of Period Foreign currency translation Goodwill, Foreign Currency Translation Gain (Loss) End of Period Inventory, Net Inventory, Net [Abstract] Raw materials Inventory, Raw Materials, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventory Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Computer Software and Equipment [Member] Computer Equipment [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Furniture and fixtures [Member] Furniture and Fixtures [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities [Abstract] Accounts payable Accounts Payable, Current Accrued compensation and benefits Employee-related Liabilities, Current Other accrued liabilities Other Accrued Liabilities, Current Accounts payable and accrued expenses Profit Improvement Plan [Member] Profit Improvement Plan [Member] Profit Improvement Plan [Member] Asset Impairment [Member] Asset Impairments [Member] Asset Impairments [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance at Beginning of Period Cash Settlements Payments for Restructuring Non-Cash Settlements Restructuring Reserve, Settled without Cash Other Restructuring Reserve, Translation and Other Adjustment Balance at End of Period Commitments and Contingencies Disclosure [Abstract] Contingencies Commitments and Contingencies Disclosure [Text Block] Accounts receivable, gross Accounts Receivable, before Allowance for Credit Loss Less: Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss Accounts receivable, net Operating cash flows: Additional Cash Flow Elements, Operating Activities [Abstract] Cash paid for amounts included in the measurement of operating Lease liabilities Operating Lease, Payments Non-cash activity: Noncash Investing and Financing Items [Abstract] Right-of-use assets obtained in exchange for operating Lease liabilities, net Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Supplemental Balance Sheet Information Assets and Liabilities, Lessee [Abstract] Right-of-use assets Lease liabilities - current Operating Lease, Liability, Current Lease liabilities - non current Total Lease liabilities Operating Lease, Liability Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Preferred Stock, par value (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred Stock, shares authorized Preferred Stock, Shares Authorized Preferred Stock, shares issued Preferred Stock, Shares Issued Preferred Stock, shares outstanding Preferred Stock, Shares Outstanding Common Stock, par value (in usd per share) Common Stock, Par or Stated Value Per Share Common Stock, shares authorized Common Stock, Shares Authorized Common Stock, shares issued Common Stock, shares outstanding Common Stock, Shares, Outstanding Treasury Stock, shares Components of Lease Expense Lease, Cost [Table Text Block] Maturities of Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Statement of Cash Flows [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Income from discontinued operations, net of tax Amortization of convertible note discount and note issuance costs Amortization of Debt Issuance Costs and Discounts Change in fair value of interest rate swaps Change in Fair Value Of Interest Rate Swaps Change in Fair Value Of Interest Rate Swaps Deferred income taxes Increase (Decrease) in Deferred Income Taxes Other operating, net Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventory Increase (Decrease) in Inventories Prepaid expenses and other current assets and other long-term assets Increase (Decrease) in Prepaid Expense and Other Assets Right-of-use assets, net of lease liabilities Increase (Decrease) in Operating Right-of-Use Assets, Net Increase (Decrease) in Operating Right-of-Use Assets, Net Accounts payable and accrued expenses and other long-term liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Taxes payable Increase (Decrease) in Income Taxes Payable Unearned revenue Increase (Decrease) in Deferred Revenue Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments for purchase of short- and long-term marketable securities Payments to Acquire Marketable Securities Proceeds from sales or maturities of short- and long-term marketable securities Proceeds from Sale and Maturity of Marketable Securities Payments for purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Payments for acquisition of patents Other investing, net Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Principal payments on long-term debt Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security Payments for dividends Payments for withholding taxes related to net settlement of restricted awards Payment, Tax Withholding, Share-based Payment Arrangement Proceeds from employee stock purchase plan Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net (decrease) increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at end of period Restricted Awards [Member] Restricted Stock Award or Restricted Stock Unit [Member] Restricted Stock Award or Restricted Stock Unit [Member] Restricted Awards (In Thousands) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning Balance (in shares) Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ending Balance (in shares) Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Beginning Balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) 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 dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Ending Balance (in dollars per share) Leases Lessee, Operating Leases [Text Block] Non-marketable equity method investments Equity Securities without Readily Determinable Fair Value, Amount Securities owned not readily marketable Security Owned Not Readily Marketable, Fair Value Impairment of equity securities without a readily determinable fair value Equity Method Investment, Non-Marketable, Other than Temporary Impairment Equity Method Investment, Non-Marketable, Other than Temporary Impairment Operating Lease Liabilities Lessee, Operating Lease, Liability, Payment, Due [Abstract] Lessee, Operating Lease, Liability, Payment, Due [Abstract] Remainder of 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total Sublease Income Lessee, Operating Lease, Liability, Sublease Income [Abstract] Lessee, Operating Lease, Liability, Sublease Income [Abstract] Remainder of 2019 Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year 2020 Lessor, Operating Lease, Payments to be Received, Two Years 2021 Lessor, Operating Lease, Payments to be Received, Three Years 2022 Lessor, Operating Lease, Payments to be Received, Four Years 2023 Lessor, Operating Lease, Payments to be Received, Five Years Thereafter Lessor, Operating Lease, Payments to be Received, Thereafter Total lease payments Lessor, Operating Lease, Payments to be Received Net Operating Lease Payments Net Operating Lease Payments [Abstract] Net Operating Lease Payments [Abstract] Remainder of 2019 Net Operating Lease Payments, Remainder of Fiscal Year Net Operating Lease Payments, Remainder of Fiscal Year 2020 Net Operating Lease Payments, Due Year Two Net Operating Lease Payments, Due Year Two 2021 Net Operating Lease Payments, Due Year Three Net Operating Lease Payments, Due Year Three 2022 Net Operating Lease Payments, Due in Four Years Net Operating Lease Payments, Due in Four Years 2023 Net Operating Lease Payments, Due Year Five Net Operating Lease Payments, Due Year Five Thereafter Net Operating Lease Payments, Due after Year Five Net Operating Lease Payments, Due after Year Five Total lease payments Net Operating Lease Payments Net Operating Lease Payments Less: imputed interest Net Operating Lease Payments, Imputed Interest Net Operating Lease Payments, Imputed Interest Total Net Operating Lease Payments, Lease Liability Net Operating Lease Payments, Lease Liability Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Revenues Revenue from Contract with Customer [Text Block] Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost, Rolling Maturity [Abstract] Due in less than 1 year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due in 1-2 years Available-for-sale Securities, Debt Maturities, After Year One Through Two, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, After Year One Through Two, Amortized Cost Basis Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Due in less than 1 year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due in 1-2 years Available-for-sale Securities, Debt Maturities, After Year One Through Two Years, Fair Value Available-for-sale Securities, Debt Maturities, After Year One Through Two Years, Fair Value Total Stated interest Interest Expense, Debt, Excluding Amortization Amortization of debt discount Amortization of Debt Discount (Premium) Amortization of debt issuance costs Amortization of Debt Issuance Costs Total interest expense Interest Expense, Debt