Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Schedule of other non-current assets Schedule of Other Assets, Noncurrent [Table Text Block] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Gain (Loss) from Litigation Settlement [Abstract] Customer [Axis] Customer [Axis] Segment Reporting [Abstract] Common Stock, $0.01 par value, 100,000 shares authorized, 71,988 and 70,965 shares issued and 25,806 and 25,685 shares outstanding Common Stock, Value, Issued Taxes withheld upon restricted stock unit vestings Payment, Tax Withholding, Share-Based Payment Arrangement Accrued compensation and related expenses Employee-related Liabilities, Current Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Other non-current assets Other Assets, Miscellaneous, Noncurrent Restatement Determination Date Restatement Determination Date Settlement of the 2027 Hedge Treasury Stock, Value, Settlement Of Debt Instrument Hedges Treasury Stock, Value, Settlement Of Debt Instrument Hedges Number of securities (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights U.S. government securities US Treasury and Government [Member] Conversion price (in USD per share) Debt Instrument, Convertible, Conversion Price Amendment Flag Amendment Flag Current liabilities: Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Revenue share costs Revenue Share Costs Revenue Share Costs Loss Contingencies [Table] Loss Contingencies [Table] Deferred income taxes Increase (Decrease) in Deferred Income Taxes Increase/(decrease) in disaggregated revenue Increase (Decrease) In Disaggregated Revenue Increase (Decrease) In Disaggregated Revenue Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of cash and cash equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Entity Address, State or Province Entity Address, State or Province Walt Disney, Co. Litigation, Mannheim Local Divisional Court and Dusseldorf Local Divisional Court of the Unified Patent Court Disney Litigation, UPC Proceedings Mannheim Local Divisional Court And Dusseldorf Local Divisional Court Of The Unified Patent Court [Member] Disney Litigation, UPC Proceedings Mannheim Local Divisional Court And Dusseldorf Local Divisional Court Of The Unified Patent Court PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in USD per share) Common Stock, Par or Stated Value Per Share Assets: Assets, Fair Value Disclosure [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Contract assets, current Contract with Customer, Asset, after Allowance for Credit Loss, Current Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Convertible Notes 2027 3.50% Senior Convertible Notes due 2027 Convertible Notes 2027 [Member] Convertible Notes 2027 Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Interest and investment income Interest and Other Income Change in deferred revenue Increase (Decrease) in Deferred Revenue Concentration Risk [Table] Concentration Risk [Table] Entity Address, City or Town Entity Address, City or Town Schedule of supplemental cash flow information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Amazon Litigation, Eastern District of Virginia Proceedings Amazon Litigation, Eastern District of Virginia Proceedings [Member] Amazon Litigation, Eastern District of Virginia Proceedings Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Receive future cash receipts percentage (as a percent) Business Acquisition, Licensing Revenue, Percentage Business Acquisition, Licensing Revenue, Percentage Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Money market and demand accounts Money Market Funds and Demand Deposits [Member] Accounts that may or may not bear interest and that depositor is entitled to withdraw at anytime without prior notice. Checking and negotiable order of withdrawal (NOW) accounts are the most common forms of demand deposits. Additionally, includes a fund that has underlying investments in short-term money-market instruments, such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid and safe securities and pays money market rates of interest. 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Litigation, Central District of California, Claim One Dolby Laboratories. Litigation, Central District of California, Claim One [Member] Dolby Laboratories. Litigation, Central District of California, Claim One Schedule of restricted cash and cash equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] CASH, CONCENTRATION OF CREDIT RISK AND FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Reporting Segment Reporting Segment [Member] Reporting Segment Long-term investments Other Long-Term Investments Concentration Risk [Line Items] Concentration Risk [Line Items] Principal Amount Long-term debt, gross Long-Term Debt, Gross Dolby Laboratories, Litigation, Central District of California Dolby Laboratories, Litigation, Central District of California [Member] Dolby Laboratories, Litigation, Central District of California Accrued compensation and other expenses Increase (Decrease) in Other Accrued Liabilities Cash flows from operating activities: Cash Provided by (Used in) Operating 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Quarterly Report Document Quarterly Report Samsung Electronics Co. Ltd. Samsung Electronics Co. Ltd. [Member] Samsung Electronics Co. Ltd. Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Payments on long-term debt Payments on long-term debt Repayments of Long-Term Debt Contract asset Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Less: Deferred financing costs Debt Issuance Costs, Net Dolby Laboratories Litigation, Central District of California, Claim Two Dolby Laboratories Litigation, Central District of California, Claim Two [Member] Dolby Laboratories Litigation, Central District of California, Claim Two Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] Interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Total shareholders' equity Beginning balance Ending balance Equity, Attributable to Parent Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Total Revenue Revenues [Member] Revenues Taxes paid on repurchase of common stock Payment Of Tax On Repurchased Shares Of Common Stock Payment Of Tax On Repurchased Shares Of Common Stock Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Prepaid and other current assets Total Prepaid and other current assets Prepaid Expense and Other Assets, Current Licensing Licensing Costs Patent administration and licensing expenses. Expenses (ie. legal, filings, etc.) incurred and are directly related to generating license revenue. 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Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Schedule of other accrued expenses Other Current Liabilities [Table Text Block] General and administrative General and Administrative Expense Settlement of the 2027 Notes Stock Issued During Period, Value, Conversion of Convertible Securities Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Corporate bonds, asset backed and other securities Corporate Bonds, Asset Backed And Other Securities [Member] Corporate Bonds, Asset Backed And Other Securities Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Dilutive effect of stock options and RSUs Stock Options, and RSUs [Member] Stock Options, and RSUs Total Assets, Fair Value Disclosure Accounts payable Accounts Payable Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-In Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental cash flow information: Supplemental Cash Flow Elements [Abstract] Short-term investments Short-Term Investments Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Tesla Proceedings Tesla Proceedings [Member] Tesla Proceedings Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Research and portfolio development Research And Portfolio Development Expense Research And Portfolio Development Expense Depreciation and amortization Depreciation, Depletion and Amortization Entity Address, Address Line Two Entity Address, Address Line Two Current assets: Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange of operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Proceeds from maturities and sales of short-term investments Proceeds from Sale, Maturity and Collection of Short-Term Investments Income tax provision Income tax provision Income Tax Expense (Benefit) OTHER INCOME, NET Other Income and Other Expense Disclosure [Text Block] Licensee Concentration Risk Customer Concentration Risk [Member] Award Timing Method Award Timing Method [Text Block] Net decrease in cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Net income Net income Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Amazon Litigation, Mannheim Local Divisional Court and Dusseldorf Local Divisional Court Amazon Litigation, Mannheim Local Divisional Court and Dusseldorf Local Divisional Court [Member] Mannheim Local Divisional Court and Dusseldorf Local Divisional Court Statement [Table] Statement [Table] Number of patent infringement proceedings Number Of Patent Infringement Proceedings Number Of Patent Infringement Proceedings Restatement Determination Date: Restatement Determination Date [Axis] Net proceeds from exercise of stock options Proceeds from Stock Options Exercised Schedule of contracted revenue Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Departmental expenses Departmental Expenses Departmental Expenses International Trade Commission and Companion District Court Proceedings Hisense, International Trade Commission and Companion District Court Proceedings [Member] Hisense, International Trade Commission and Companion District Court Proceedings Walt Disney, Co. Litigation, Munich Regional Court Walt Disney, Co. Litigation, Munich Regional Court [Member] Walt Disney, Co. Litigation, Munich Regional Court Receivables Increase (Decrease) in Receivables Loss contingency, new claims filed, number Loss Contingency, New Claims Filed, Number Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]