Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [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) Gain included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized loss reclassification adjustment 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 Unrealized gains (losses) included in other comprehensive (loss) income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 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 Reconciliations, Recurring Basis, Liability Value Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements (Loss) Gain 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) Revenue from Contract with Customer [Abstract] 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 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] Revenues Revenues Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Legacy TiVo Solutions Plan and Legacy Rovi Plan [Member] Legacy TiVo Solutions Plan and Legacy Rovi Plan [Member] Legacy TiVo Solutions Plan and Legacy Rovi Plan [Member] Legacy Rovi Plans [Member] Legacy Rovi Plans [Member] Legacy Rovi Plans [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring charges Restructuring, Settlement and Impairment Provisions Accrual adjustment Restructuring Reserve Statement of Financial Position [Abstract] 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, Issued Common Stock, shares outstanding Common Stock, Shares, Outstanding Treasury Stock, shares Treasury Stock, Shares Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] 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, Net 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, Net, 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 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 Taxes payable, less current portion Accrued Income Taxes, Noncurrent 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 Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and 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; 124,389 shares issued and 122,924 shares outstanding as of March 31, 2018; and 123,385 shares issued and 122,116 shares outstanding as of December 31, 2017 Common Stock, Value, Issued Treasury stock, 1,465 shares and 1,269 shares as of March 31, 2018 and December 31, 2017, 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 Equity [Abstract] 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 Income Statement [Abstract] Revenues, net: Revenue, Net [Abstract] Licensing, services and software License and Services Revenue Hardware Sales Revenue, Goods, Net Total Revenues, net 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 Depreciation Depreciation Amortization of intangible assets Amortization of Intangible Assets Total costs and expenses Costs and Expenses Operating loss Operating Income (Loss) Interest expense Interest Expense Interest income and other, net Other Nonoperating Income (Expense) Gain on interest rate swaps Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net TiVo Acquisition litigation Gain (Loss) Related to Litigation Settlement Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Loss on debt modification Gains (Losses) on Restructuring of Debt Loss from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Loss from continuing operations, net of tax Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net loss Net Income (Loss) Attributable to Parent 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) Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Segment Reporting [Abstract] 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] 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] 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 Equity-based compensation Share-based Compensation 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 Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus 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 Disclosure of Compensation Related Costs, Share-based Payments [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 Pre-tax equity-based compensation, excluding amounts included in restructuring expense Pre-tax equity-based compensation, included in restructuring expense Restructuring and Related Activities, Share-based Compensation Restructuring and Related Activities, Share-based Compensation 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] Debt Disclosure [Abstract] 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 Long-term Debt, Gross 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 Loss Contingencies [Table] Loss Contingencies [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] TiVo Solutions [Member] TiVo Inc. [Member] TiVo Inc. [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Dissenting Holders [Member] Fir Tree Entities and Dreihaus Entities [Member] Fir Tree Entities and Dreihaus Entities [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Settled Litigation [Member] Settled Litigation [Member] Category of Item Purchased [Axis] Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-term Purchase Commitment, Category of Item Purchased [Domain] Inventories [Member] Inventories [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Total purchase commitments Long-term Purchase Commitment, Amount Accrued purchase commitments Accrued Liabilities, Current Dissenting shares outstanding (in shares) Common Stock, Shares Outstanding, Exercised Appraisal Rights Common Stock, Shares Outstanding, Exercised Appraisal Rights Payments for previous acquisition Payments for Previous Acquisition Income Tax Disclosure [Abstract] Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] $250M June 2013 Swaps 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] Line of Credit [Member] Line of Credit [Member] Notional amount of interest rate swaps Derivative, Notional Amount Fixed interest rate (percent) Derivative, Fixed Interest Rate 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] 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] Concentrations of Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Accounts Receivable Receivables, Policy [Policy Text Block] Contract Assets Contract Asset, Policy [Policy Text Block] Contract Asset, Policy [Policy Text Block] Contract Liabilities, including Unearned Revenue Contract Liabilities, Policy [Policy Text Block] Contract Liabilities, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [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] Restructuring Charges Restructuring, Impairment, and Other Activities Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Revenue Recognition and Deferred Revenue [Abstract] Revenues Revenue from Contract with Customer [Text Block] 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] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Options [Member] Employee Stock Option [Member] Restricted Awards [Member] Restricted Awards [Member] Restricted Awards [Member] Restricted Stock [Member] Restricted Stock [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [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 Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Vesting period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Award vesting rights (percent) 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 Shares reserved for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares available for issuance 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 (percent) 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 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 Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Expected dividend yield (percent) 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) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Number of shares awarded and unvested 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 Total intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value 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] Equity Option [Member] Equity Option [Member] Purchase of call options Payments for Derivative Instrument, Financing Activities 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 (Payments) proceeds from (purchase) sale of warrants Proceeds from Issuance of Warrants 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 Foreign withholding tax Withholding Tax, Foreign, Continuing Operations Withholding Tax, Foreign, Continuing Operations State income tax State and Local Income Tax Expense (Benefit), Continuing Operations Foreign income tax Foreign Income Tax Expense (Benefit), Continuing Operations Release of deferred tax asset valuation allowance Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Change in unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Change in net deferred tax liabilities Change in Net Deferred Tax Liabilities, Amount Change in Net Deferred Tax Liabilities, Amount Income tax expense 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] 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 Goodwill and Intangible Assets Disclosure [Abstract] Remainder of 2018 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2022 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 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 Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Revenue By Contract Type Revenue By Contract Type [Table Text Block] Revenue By Contract Type [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] Concentration of Customers Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Contract Assets with Customer Contract with Customer, Asset and Liability [Table Text Block] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, 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] Accounts payable and accrued expenses [Member] Current Liabilities [Member] Current Liabilities [Member] Other long-term liabilities [Member] Non Current Liabilities [Member] Non Current Liabilities [Member] Financial Instruments [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Money Market Funds [Member] Money Market Funds [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Foreign Government Obligations [Member] Foreign Government Debt Securities [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, Recurring Fair value liabilities measured on a recurring basis Liabilities, Fair Value Disclosure, Recurring 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 Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Total Cash And Cash Equivalents [Member] Cash and Cash Equivalents [Member] Cash [Member] Cash [Member] Cash Equivalents [Member] Total Cash, Cash Equivalents And Marketable Securities [Member] Cash Cash Equivalents And Investments [Member] Cash, Cash Equivalents and Investments [Member] Money Markets Funds [Member] U.S. Treasuries / Agencies [Member] US Treasury and Government [Member] Marketable Securities [Member] Available-for-sale Securities [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Amortized Cost Available-for-sale Debt Securities, Amortized Cost Basis Unrealized Gains Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Unrealized Losses Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Available-for-sale Securities, Debt Securities Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] TiVo Corporation [Member] TiVo Corporation [Member] TiVo Corporation [Member] Debt issued Debt Instrument, Face Amount Interest rate of debt, stated percentage Debt Instrument, Interest Rate, Stated Percentage Repayments of convertible debt Repayments of Convertible Debt Shares issued per $1,000 principal amount Debt Instrument, Convertible, Conversion Ratio Initial conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price 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 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] Schedule of Stockholders Equity Schedule of Stockholders Equity [Table 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] Common Stock [Member] Class of Stock [Line Items] Class of Stock [Line Items] Weighted average potential shares excluded from the calculation of Diluted EPS (in shares) Share price (in us dollars per share) Share Price Authorized stock repurchase amount Stock Repurchase Program, Authorized Amount Remaining number of shares authorized to be repurchased Stock Repurchase Program, Remaining Authorized Repurchase Amount Stock repurchase (in shares) Treasury Stock, Shares, Acquired Tax withholding for share-based compensation (shares) Shares Paid for Tax Withholding for Share Based Compensation Tax withholding for share-based compensation Adjustments Related to Tax Withholding for Share-based Compensation Dividend payments Payments of Dividends 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 (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Risk free interest rate (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Accounts receivable, gross Accounts Receivable, Gross Less: Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Accounts receivable, net Goodwill And Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Beginning Balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Forfeited and expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Ending Balance (in shares) Vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Beginning Balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Forfeited and expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Ending Balance (in dollars per share) Weighted-Average Exercise Price, 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 Weighted-Average Exercise Price, 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 Weighted-Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted-Average Remaining Contractual Term, Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted-Average Remaining Contractual Term, Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted-Average Remaining Contractual Term, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (In Thousands) Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value, Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate Intrinsic Value, Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Aggregate Intrinsic Value, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Concentration Risk [Table] Concentration Risk [Table] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Virgin Media [Member] Virgin Media [Member] Virgin Media [Member] AT&T [Member] AT&T Inc. [Member] AT&T Inc. [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Net [Member] Sales Revenue, Net [Member] Accounts Receivable [Member] 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 [Line Items] Concentration Risk [Line Items] Concentration risk (percent) Concentration Risk, Percentage Non-marketable equity method investments Equity Method Investments, Non-Marketable Equity Method Investments, Non-Marketable Securities Owned Not Readily Marketable Securities Owned Not Readily Marketable Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Business Acquisition [Line Items] Payment to Dissenting Holders in TiVo Acquisition Return of cash paid for TiVo Acquisition Cash Returned from Acquisition Cash Returned from Acquisition TiVo Acquisition litigation loss Acquisitions Business Combination Disclosure [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 Stock Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] 2018 Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2019 Long-term Debt, Maturities, Repayments of Principal in Year Two 2020 Long-term Debt, Maturities, Repayments of Principal in Year Three 2021 Long-term Debt, Maturities, Repayments of Principal in Year Four Total Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Assets Held for Sale Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Facility-related costs Facility-Related Costs Facility-Related Costs Severance costs Severance Costs Share-based payments Contract termination costs Business Exit Costs Restructuring and asset impairment charges 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] Fair Value [Member] Estimate of Fair Value Measurement [Member] Carrying Amount [Member] Reported Value Measurement [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Term Loan B Facility [Member] Term Loan B Facility [Member] Term Loan B Facility [Member] Total Long-term debt Long-term Debt, Fair Value 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) Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 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) Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Contracts with Customers [Member] Accounting Standards Update 2014-09, Contracts with Customers [Member] Accounting Standards Update 2014-09, Contracts with Customers [Member] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] International MSO Agreements [Member] International MSO Agreements [Member] International MSO Agreements [Member] Other Noncurrent Assets [Member] 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] Fixed-Fee Patent Licensing Agreement [Member] Fixed-Fee Patent Licensing Agreement [Member] Fixed-Fee Patent Licensing Agreement [Member] Number of performance obligations Contract with Customer, Contracts, Number of Performance Obligations Contract with Customer, Contracts, Number of Performance Obligations Contract assets Revenue recognized Contract with Customer, Liability, Revenue Recognized Revenue from remaining performance obligation Revenue, Remaining Performance Obligation Revenue from remaining performance obligation expected to be received in the next 12 months Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Next Twelve Months, Percentage Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Next Twelve Months, Percentage Impairment losses Contract with Customer, Asset, Credit Loss Expense Profit Improvement Plan [Member] Profit Improvement Plan [Member] Profit Improvement Plan [Member] Tivo Integration Restructuring Plan [Member] Tivo Integration Restructuring Plan [Member] Tivo Integration Restructuring Plan [Member] 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] Share-based Payments [Member] Restructuring Share-based Payments [Member] Restructuring Share-based Payments [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance at Beginning of Period Restructuring Expense Restructuring Charges 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 Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Adjustments to reconcile net loss to net cash provided by (used in) 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 TiVo Acquisition litigation Loss on debt extinguishment Loss on debt modification 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 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 (used in) operating activities of continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities of discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from 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 Return of cash paid for TiVo Acquisition Proceeds from Previous Acquisition Payments for purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Payments for purchase of patents Payments to Acquire Intangible Assets Other investing, net Payments for (Proceeds from) Other Investing Activities Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of long-term debt, net of issuance costs Proceeds from Issuance of Long-term Debt Principal payments on long-term debt Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Payments for dividends Payments for withholding taxes related to net settlement of restricted awards Payments Related to Tax Withholding for Share-based Compensation Proceeds from employee stock purchase plan and exercise of employee stock options Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options 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 and Cash Equivalents 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 Schedule of Segment Reporting Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Accounting Standards Update 2016-04 [Member] Accounting Standards Update 2016-04 [Member] Accounting Standards Update 2014-09, Costs to Obtain Contracts with Customers [Member] Accounting Standards Update 2014-09, Costs to Obtain Contracts with Customers [Member] Accounting Standards Update 2014-09, Costs to Obtain Contracts with Customers [Member] Accounting Standards Update 2014-09, Contracts with Customers [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Deficit [Member] Retained Earnings [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Accounts receivable payment term Accounts Receivable, Payment Term Accounts Receivable, Payment Term Contract cost expected benefit period (or more) Capitalized Contract Cost, Judgment, Expected Benefit Period Capitalized Contract Cost, Judgment, Expected Benefit Period Contract cost amortization period Capitalized Contract Cost, Amortization Period Capitalized Contract Cost, Amortization Period DVR return period Product Return Period Product Return Period Subscription cancellation period for full refund Subscription Cancellation Period, For Full Refund Subscription Cancellation Period, For Full Refund Lifetime subscriptions amortization period Product Lifetime Subscriptions, Amortization Period Product Lifetime Subscriptions, Amortization Period Accumulated deficit Cumulative effect of new accounting principle Cumulative Effect of New Accounting Principle in Period of Adoption Segment Information Segment Reporting Disclosure [Text Block] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] As If Applying Prior Guidance [Member] Calculated under Revenue Guidance in Effect before Topic 606 [Member] Effect of Change Higher/(Lower) [Member] Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Loss from continuing operations before income taxes Income tax expense Loss from continuing operations, net of tax Equity-based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] 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] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Product Operating Segment [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 Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Contract Termination Costs [Member] Contract Termination [Member] Accrued restructuring costs Revolving Credit Facility [Member] Revolving Credit Facility [Member] Term Loan A Facility [Member] Term Loan A Facility [Member] Term Loan A 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] Number of wholly-owned subsidiaries Number of Wholly Owned Subsidiaries Number of Wholly Owned Subsidiaries Debt instrument term Debt Instrument, Term 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 Quarterly principal payments Line of Credit Facility, Periodic Payment, Principal Additional payments Line of Credit Facility, Covenant Compliance, Payment Requirements, Amount Line of Credit Facility, Covenant Compliance, Payment Requirements, Amount Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Patents [Member] Patents [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Payments for purchase of patents Acquired finite-lived intangible assets weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Costs to Obtain Contracts with Customers [Member] De-recognition of Prepaid Stored Value Product Liabilities [Member] Accounts receivable, net Prepaid expenses and other current assets Other long-term assets Accounts payable and accrued expenses Unearned revenue Deferred tax liabilities, net Amortized Cost Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Rolling Maturity [Abstract] Due in less than 1 year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis 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 Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract] Due in less than 1 year Available-for-sale Securities, Debt Maturities, Next Twelve Months, 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 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 (losses) gains on marketable securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Less: Reclassification adjustment Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Income Taxes Income Tax Disclosure [Text Block] Inventory, Net Inventory, Net [Abstract] Raw materials Inventory, Raw Materials, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventory, Net Property, Plant and Equipment [Table] Property, Plant and Equipment [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] 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 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 Acquired Finite-Lived Intangible Assets by Major Class [Axis] 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] 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 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] 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] Balance Balance (treasury shares) Balance (common shares) Cumulative effect adjustment (a) Other comprehensive income, net of tax 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, Forfeited Issuance of restricted stock, net Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Equity-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Dividends Dividends, Common Stock, Cash Withholding taxes related to net share settlement of restricted stock units (in shares) Withholding taxes related to net share settlement of restricted stock units Balance Balance (treasury shares) Balance (common shares) Financial Statement Details Additional Financial Information Disclosure [Text Block] 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] Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure [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 Less: Current portion of long-term debt Debt and Interest Rate Swaps Debt Disclosure [Text Block]