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[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] 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 Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Patents [Member] Patents [Member] 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Issuance Costs and Discounts Restructuring and asset impairment charges Restructuring, Settlement and Impairment Provisions Equity-based compensation Share-based Compensation 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 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 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 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 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 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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 Carrying Value Cash and cash equivalents at end of period 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 Revenues 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 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 Gain on settlement of acquired receivable Business Combination, Acquired Receivables, Gain (Loss) on Settlement Business Combination, Acquired Receivables, Gain (Loss) on Settlement Operating (loss) income Operating Income (Loss) Interest expense Interest Expense Interest income and other, net Other Nonoperating Income (Expense) Gain (loss) on interest rate swaps Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net TiVo Acquisition litigation Loss on debt extinguishment Loss on debt modification Loss from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Restructuring and Related Activities [Abstract] 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 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 Contract termination costs Business Exit Costs Asset impairment Asset Impairment Charges Restructuring and asset impairment charges Accounts receivable, gross Accounts Receivable, Gross Less: Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Accounts receivable, net Accounts Receivable, Net, Current Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Equity Option [Member] Equity Option [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Long-term Debt [Member] Long-term Debt [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Debt issued Debt Instrument, Face Amount Interest rate of debt, stated percentage Debt Instrument, Interest Rate, Stated Percentage Shares issued per $1,000 principal amount Debt Instrument, Convertible, Conversion Ratio Initial conversion price (in usd per share) Debt Instrument, Convertible, Conversion Price Common stock strike price (in usd per share) Derivative, Price Risk Option Strike Price 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. 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. 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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) Shares Paid for Tax Withholding for Share Based Compensation Withholding taxes related to net share settlement of restricted stock units Adjustments Related to Tax Withholding for Share-based Compensation Balance Balance (treasury shares) Balance (common shares) Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Investments [Abstract] 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 Amortized Cost Debt Securities, Available-for-sale, Amortized Cost 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 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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. 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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 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 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 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 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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 Revenues Revenue from Contract with Customer [Text Block] Contract Termination Costs [Member] Contract Termination [Member] Accrued restructuring costs 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. 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