Pending Acquisition Mergers, Acquisitions and Dispositions Disclosures [Text Block] Senior Credit Facility [Member] Senior Credit Facility [Member] Senior credit facility. Reclassification Adjustment [Member] Revision of Prior Period, Reclassification, Adjustment [Member] Credit Facility [Member] Incremental debt financing Incremental Debt Financing Incremental debt financing. Date of acquisition agreement Business Acquisition, Date of Acquisition Agreement Business acquisition price per share issued and outstanding Business Acquisition, Share Price DSPG [Member] DSP Group Inc. [Member] DSP Group Inc. Member. Business Acquisition, Acquiree [Domain] Business Acquisition [Axis] Business Acquisition [Line Items] Schedule of Business Acquisitions, by Acquisition [Table] Remainder of 2022 Treasury stock: 28,124,621 and 31,631,103 common treasury shares at September 2021 and June 2021, respectively, at cost $0.001 par value; 120,000,000 shares authorized, 67,347,872 and 66,963,006 shares issued, and 39,223,251 and 35,331,903 shares outstanding, at September 2021 and June 2021, respectively Property and equipment at cost, net of accumulated depreciation of $136.2 and $131.0 at September 2021 and June 2021, respectively Accounts receivable, net of allowances of $5.6 and $5.8 at September 2021 and June 2021, respectively Acquired intangibles, net Common shares that were not included in computation of diluted net income (loss) per share Net income (loss) per share: Computation of Basic and Diluted Net Income (Loss) Per Share Net Income (Loss) Per Share Loss on redemption of convertible notes Payment for redemption of convertible notes Refundable deposit paid to vendor Refundable Deposit Paid to Vendor Refundable deposit paid to vendor. Payment for Redemption of Convertible Notes Payment for redemption of convertible notes. Redemption of convertible debt Redemption of Convertible Debt Redemption of convertible debt Loss on redemption of convertible notes Loss on Redemption of Convertible Notes Loss on redemption of convertible notes. Net Carrying Value Cash payments Shares, diluted Fair value of senior notes Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure, Total Net income/(loss) Shares used in computing net income/(loss) per share: Net income/(loss) per share: Net income/(loss) and Comprehensive income/(loss) Provision/(benefit) for income taxes Income/(loss) before provision/(benefit) for income taxes and equity investment loss Fiscal 2022 Restructuring Plan [Member] Fiscal Two Thousand Twenty Two Restructuring Plan [Member] Fiscal two thousand twenty two restructuring plan Total lease liabilities Total future minimum operating lease payments 2026 2025 2024 2023 Estimated decrease in unrecognized tax benefit in next twelve months Decrease in Unrecognized Tax Benefits is Reasonably Possible Aggregate Intrinsic Value, Balance as of September 2021 Stock Unit Awards Outstanding, Balance as of September 2021 Stock Unit Awards Outstanding, Balance as of June 2021 Convertible debt outstanding Convertible Debt Outstanding Convertible Debt Outstanding Aggregate Intrinsic Value, Balance as of September 2021 Weighted Average Exercise Price, Balance as of September 2021 Weighted Average Exercise Price, Balance as of June 2021 Stock Option Awards Outstanding, Balance as of September 2021 Stock Option Awards Outstanding, Balance as of June 2021 Lose on issuance of common stock from treasury stock LossOnIssuanceOfCommonStockFromTreasuryStock Loss On Issuance Of Common Stock From Treasury Stock Common stock shares issued related to convertible notes Debt instrument periodic payment principal Debt Instrument, Periodic Payment, Principal Debt instrument convertible number of shares per thousand of principal amount of notes Debt instrument convertible number of shares per thousand of principal amount of notes, current DebtInstrumentConvertibleNumberOfSharesPerThousandOfPrincipalAmountOfNotesCurrent Debt Instrument convertible number of shares per thousand of principal amount of notes current Convertible debt principal amount in multiples Convertible Notes Payable [Member] Short-term Debt, Type [Domain] Short-term Debt, Type [Axis] Debt instrument aggregate principal amount Percentage Of Principal Amount Of Notes Equal To Repurchase Price Revolving credit facility description Line of Credit Facility, Revolving Credit Conversion to Term Loan, Description Percentage of non-voting capital stock PercentageOfNonVotingCapitalStock Percentage Of non voting capital stock Line of credit facility amount Redemption of Principal amount percentage RedemptionOfPrincipalAmountPercentage RedemptionOfPrincipalAmountPercentage Convertible notes, net Convertible Notes Payable, Current Current leverage ratio permitted CurrentMaximumLeverageRatio Current Maximum Leverage Ratio Prior leverage ratio permitted PriorLeverageRatioPermitted Prior Leverage Ratio Permitted Interest Expense Long Term Debt Interest Expense, Long-term Debt Interest Expense, Long-term Debt, Total Redemption of debt in cash, percentage DebtInstrumentRedemptionPercentageOfNetProceedsInCash Debt Instrument Redemption Percentage Of Net Proceeds In Cash Cost of Goods and Services Sold, Total Research and Development Expense, Total Selling, General and Administrative Expense, Total Unrecognized Tax Benefits, Ending Balance Unrecognized Tax Benefits, Beginning Balance Incremental Common Shares Attributable to Share-based Payment Arrangements, Total Bank Deposit [Member] Bank Deposit. Amortization of cost of development services Amortization of Cost of Development Services Amortization of cost of development services Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Earnings Per Share, Diluted, Total Payments to Acquire Businesses, Net of Cash Acquired, Total Income Tax Expense (Benefit), Total Contract with Customer, Refund Liability, Total Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Effect of Exchange Rate on Cash and Cash Equivalents, Total Weighted Average Number of Shares Outstanding, Basic, Total Accounts Payable, Current, Total Increase (Decrease) in Other Operating Assets, Total Contract with Customer, Asset, after Allowance for Credit Loss, Total Finite-Lived Intangible Assets, Gross, Total Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Employee-related Liabilities, Current, Total Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Debt Securities, Available-for-sale, Total Finite-Lived Intangible Assets, Net, Ending Balance Finite-Lived Intangible Assets, Net, Beginning Balance Proceeds from Sale, Maturity and Collection of Investments, Total Contract with Customer, Liability, Total Accounts Receivable, after Allowance for Credit Loss, Current, Total Unrecognized Tax Benefits, Period Increase (Decrease), Total Schedule Of Finite Lived Intangible Assets Table [Text Block] Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization Lease Cost Table [Text Block] Schedule of Components of Leases and Lease Costs Schedule of supplemental cash flow information related to leases. Deferred Tax Liabilities, Net, Total Nonoperating Income (Expense), Total Accrued Liabilities, Total Amortization of Intangible Assets, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Issued, Total Restructuring Charges, Total Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Total Other Assets, Noncurrent, Total Income (Loss) from Equity Method Investments, Total Cash and Cash Equivalents, at Carrying Value, Ending Balance Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Total Increase (Decrease) in Inventories, Total Restructuring Reserve, Period Increase (Decrease), Total Increase (Decrease) in Accounts Payable, Total Revenue from Contract with Customer, Excluding Assessed Tax, Total Depreciation, Depletion and Amortization, Nonproduction, Total Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised, Total Earnings Per Share, Basic, Total Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture, Total Long-term Line of Credit, Total Increase (Decrease) in Employee Related Liabilities, Total Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total Debt Issuance Costs, Net, Total Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total Share-based Payment Arrangement, Noncash Expense, Total Foreign Currency Transaction Gain (Loss), before Tax, Total Debt Instrument, Unamortized Discount, Total Interest Expense, Total Long-term Debt, Excluding Current Maturities, Total APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total Schedule Of Supplemental Cash Flow Information Related To Leases Table [Text Block] Schedule of Supplemental Cash Flow Information Related to Leases Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Schedule Of Accrued Liabilities Table [Text Block] Other Accrued Liabilities Other Noncurrent Liabilities Table [Text Block] Other Long-Term Liabilities Schedule of redemption prices and unpaid interest table text block. Schedule Of Redemption Prices And Unpaid Interest Table [Text Block] Schedule Of Redemption Prices And Unpaid Interest Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type Phantom Share Units P S Us [Member] Phantom Stock Unit [Member] Restricted Stock Units R S U [Member] Restricted stock units outstanding [Member] Market stock units. Market Stock Units [Member] Market stock units outstanding [Member] Performance stock units. Performance Stock Units [Member] Performance stock units outstanding [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Share-Based Compensation, Cash-Based Awards and Related Tax Benefit Recognized in Condensed Consolidated Statements of Operations Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Schedule of Stock Option Activity Schedule Of Share Based Compensation Activity Table [Text Block] Schedule of Stock Units Activity Schedule Of Share Based Compensation Employee Stock Purchase Plan Activity Table [Text Block] Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Concentration Risk Benchmark Sales Revenue Net [Member] Sales Revenue, Net [Member] Accounts Receivable [Member] Accounts Receivable [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenue From External Customers By Geographic Areas Table [Text Block] Net Revenue within Geographic Areas Based on Customers' Locations Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block] Net Revenue from External Customers Schedules Of Concentration Of Risk By Risk Factor [Text Block] Major Customers as Percentage of Net Revenue Schedule Of Restructuring And Related Costs [Text Block] Restructuring Liability Activities Basis of presentation. Basis Of Presentation [Line Items] Basis Of Presentation [Line Items] Basis of presentation. Basis Of Presentation [Table] Basis Of Presentation [Table] Investment Type [Axis] Investment Type Investment Type Categorization [Member] Investments Money Market Funds [Member] Money Market Funds [Member] Range [Axis] Statistical Measurement Range [Member] Statistical Measurement Maximum [Member] Maximum Minimum [Member] Minimum [Member] Available For Sale Securities Debt Securities Available-for-sale securities, debt securities Foreign currency transaction realized and unrealized gain (loss) net of tax. Foreign Currency Transaction Realized And Unrealized Gain Loss Net Of Tax Net gain (loss) on foreign currency transactions Account receivable bad debt charge. Account Receivable Bad Debt Charge Account receivable bad debt Revenue performance obligation payment terms. Revenue Performance Obligation Payment Terms Revenue, performance obligation, payment terms Revenue Initial Application Period Cumulative Effect Transition [Table] Revenue Initial Application Period Cumulative Effect Transition [Table] Adjustments For New Accounting Pronouncements [Axis] Accounting Standards Update Type Of Adoption [Member] Accounting Standards Update Accounting Standards Update201409 [Member] Accounting Standards Update 2014-09 [Member] Revenue Initial Application Period Cumulative Effect Transition [Line Items] Revenue Initial Application Period Cumulative Effect Transition [Line Items] Contract With Customer Asset Net Contract asset Contract With Customer Liability Contract liability Contract With Customer Refund Liability Refund liability Contract With Customer Liability Revenue Recognized Revenue recognized related to contract liabilities Revenue Performance Obligation Description Of Payment Terms Description of payment terms in contract with customer Revenue Remaining Performance Obligation Remaining unsatisfied performance obligation Earnings Per Share Reconciliation [Abstract] Numerator: Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract] Denominator: Incremental Common Shares Attributable To Share Based Payment Arrangements Effect of dilutive share-based awards and convertible notes Earnings Per Share Basic And Diluted [Abstract] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities Antidilutive Securities Name [Domain] Antidilutive Securities, Name Stock Compensation Plan [Member] Share-Based Awards [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Convertible Debt Fair Value Disclosures Convertible notes Inventory Work In Process And Raw Materials Net Of Reserves Foreign Currency Transaction Gain Loss Before Tax Foreign currency remeasurement loss Increase Decrease In Operating Capital [Abstract] Deferred tax liability Accrued Income Taxes Noncurrent Income taxes payable, long-term Other Sundry Liabilities Noncurrent Other Debt Instrument [Table] Debt Instrument [Table] Debt Instrument [Axis] Debt Instrument Debt Instrument Name [Domain] Debt Instrument, Name Four point zero percent convertible senior notes due two thousand twenty nine member. Goodwill, Total Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Payments to Acquire Property, Plant, and Equipment, Total Increase (Decrease) in Prepaid Expense and Other Assets, Total Restructuring Reserve, Total Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name In Process Research And Development [Member] In-Process Research and Development [Member] Trade Names [Member] Trade Names [Member] Tradename [Member] Purchases of property and equipment Net Cash Provided By Used In Investing Activities Net cash used in investing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Proceeds from issuance of shares Payments Of Debt Issuance Costs Debt issuance cost Payment of debt issuance costs Net Cash Provided By Used In Financing Activities Net cash provided by/(used in) financing activities Effect Of Exchange Rate On Cash And Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Net increase/(decrease) in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information Income Taxes Paid Cash paid for taxes Proceeds From Income Tax Refunds Cash refund on taxes Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Non-cash investing and financing activities: Capital Expenditures Incurred But Not Yet Paid Purchases of property and equipment in current liabilities Accounting Policies [Abstract] Basis Of Presentation And Significant Accounting Policies [Text Block] Basis of Presentation Revenue From Contract With Customer [Abstract] Revenue From Contract With Customer [Text Block] Revenue Recognition Earnings Per Share [Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Inventories Business Combinations [Abstract] Goodwill And Intangible Assets Disclosure [Abstract] Goodwill And Intangible Assets Disclosure [Text Block] Acquired Intangibles and Goodwill Leases [Abstract] Lessee Operating Leases [Text Block] Leases Payables And Accruals [Abstract] Accounts Payable Accrued Liabilities And Other Liabilities Disclosure Noncurrent [Text Block] Other Accrued Liabilities and Other Long-Term Liabilities Commitments And Contingencies Disclosure [Abstract] Commitments And Contingencies Disclosure [Text Block] Indemnifications and Contingencies Debt Disclosure [Abstract] Debt Disclosure [Text Block] Debt Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Share-Based Compensation Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Taxes Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment, Customers, and Geographic Information Equity [Abstract] Comprehensive Income Note [Text Block] Comprehensive Income Restructuring And Related Activities [Abstract] Restructuring And Related Activities Disclosure [Text Block] Restructuring Activities Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Use Of Estimates Use of Estimates Cash And Cash Equivalents Policy [Text Block] Cash Equivalents Foreign Currency Transactions And Translations Policy [Text Block] Foreign Currency Transactions and Foreign Exchange Contracts Lessee Leases Policy [Text Block] Leases Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule Of Inventory Current Table [Text Block] Inventories Four Point Zero Percent Convertible Senior Notes Due Two Thousand Twenty Nine [Member] 4.0% Senior Notes Due 2029 [Member] Zero point five zero percent convertible senior notes due two thousand twenty two. Zero Point Five Zero Percent Convertible Senior Notes Due Two Thousand Twenty Two [Member] 0.50% Convertible Senior Notes due 2022 [Member] Statement Scenario [Axis] Scenario Scenario Unspecified [Domain] Scenario For four fiscal quarters ending after date of material acquisition. For Four Fiscal Quarters Ending After Date Of Material Acquisition [Member] For The First Four Fiscal Quarters Ending After Date of Material Acquisition [Member] Credit Facility [Axis] Credit Facility Credit Facility [Domain] Credit Facility Revolving Credit Facility [Member] Revolving Credit Facility [Member] Amended and restated credit agreement. Amended And Restated Credit Agreement [Member] Amended and Restated Credit Agreement [Member] Letter Of Credit [Member] Letter of Credit [Member] Bridge Loan [Member] Bridge Loan [Member] Variable Rate [Axis] Variable Rate Variable Rate [Domain] Variable Rate Federal Funds Effective Swap Rate [Member] Federal Funds Rates [Member] London Interbank Offered Rate L I B O R [Member] LIBOR [Member] Base Rate [Member] Base Rate [Member] Thereafter. Thereafter [Member] Thereafter [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument Face Amount Aggregate principal amount Debt Instrument Interest Rate Stated Percentage Debt instrument interest rate, stated percentage Senior debt Repayment date description. Senior Debt Repayment Date Description Repayment date, description Debt instrument redemption price percentage including accrued and unpaid interest. Debt Instrument Redemption Price Percentage Including Accrued And Unpaid Interest Price Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Long-term Debt, Type Senior notes two thousand twenty four. Senior Notes Two Thousand Twenty Four [Member] 2024 Senior notes two thousand twenty five. Senior Notes Two Thousand Twenty Five [Member] 2025 Senior notes two thousand twenty six and thereafter. Senior Notes Two Thousand Twenty Six And Thereafter [Member] 2026 An Thereafter Debt Instrument Convertible Threshold Percentage Of Stock Price Trigger Sale price of common stock, minimum threshold percentage Line Of Credit Facility Expiration Date1 Maturity period Deferred Finance Costs Net Debt issuance costs Interest Expense Interest Expense Proceeds from issuance of convertible debt. 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Debt Instrument Convertible Number Of Shares Per Thousand Of Principal Amount Of Notes Changes in operating assets and liabilities, net of acquisitions: Increase Decrease In Accounts Receivable Accounts receivable, net Increase Decrease In Inventories Inventories Increase Decrease In Prepaid Deferred Expense And Other Assets Prepaid expenses and other current assets Increase Decrease In Other Operating Assets Other assets Increase Decrease In Accounts Payable Accounts payable Increase Decrease In Employee Related Liabilities Accrued compensation Increase Decrease In Accrued Income Taxes Payable Income taxes payable Increase Decrease In Other Accrued Liabilities Other accrued liabilities Net Cash Provided By Used In Operating Activities Net cash provided by operating activities Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities Payments To Acquire Businesses Net Of Cash Acquired Acquisition of businesses, net of cash and cash equivalents acquired Proceeds From Sale Maturity And Collections Of Investments Proceeds from maturities of investments Payments To Acquire Property Plant And Equipment Acquired Finite Lived Intangible Assets Weighted Average Useful Life Estimated Weighted Average Useful Lives in Years Weighted Average Life in Years Entity Registrant Name Entity Registrant Name Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Shell Company Entity Shell Company Security12b Title Title of 12(b) Security Security Exchange Name Security Exchange Name Entity File Number Entity File Number Entity Incorporation State Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address Address Line1 Entity Address, Address Line One Entity Address City Or Town Entity Address, City or Town Entity Address State Or Province Entity Address, State or Province Entity Address Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Convertible notes payable, net. Convertible Notes Payable Net Convertible notes, net Statement Of Financial Position [Abstract] Assets [Abstract] ASSETS Assets Current [Abstract] Current Assets: Cash And Cash Equivalents At Carrying Value Cash and cash equivalents Accounts Receivable Net Current Inventory Net Inventories Total Inventories Prepaid Expense And Other Assets Current Prepaid expenses and other current assets Assets Current Total current assets Property Plant And Equipment Net Goodwill Ending balance Beginning balance Goodwill Finite Lived Intangible Assets Net Net Carrying Value Other Assets Noncurrent Non-current other assets Assets Total assets Liabilities And Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities Current [Abstract] Current Liabilities: Accounts Payable Current Accounts payable Employee Related Liabilities Current Accrued compensation Accrued Income Taxes Current Income taxes payable Other Accrued Liabilities Current Other accrued liabilities Other accrued liabilities Liabilities Current Total current liabilities Long Term Debt Noncurrent Long-term debt Other Liabilities Noncurrent Other long-term liabilities Other long-term liabilities Liabilities Total liabilities Stockholders Equity [Abstract] Stockholders' Equity: Common Stock Value Additional Paid In Capital Common Stock Additional paid-in capital Treasury Stock Value Collaborative Arrangement and Arrangement Other than Collaborative Common stock, par value 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 Common Shares Common treasury shares Amortization of intangible assets included in operating expense. Amortization Of Intangible Assets Included In Operating Expense Acquired intangibles amortization Income Statement [Abstract] Revenue From Contract With Customer Excluding Assessed Tax Net revenue Revenue Cost Of Goods And Services Sold Cost of revenue Gross Profit Gross margin Operating Expenses [Abstract] Operating expenses: Research And Development Expense Research and development Selling General And Administrative Expense Selling, general, and administrative Restructuring Charges Restructuring costs Gain Loss On Sale Of Other Assets Gain on sale of audio technology assets Operating Expenses Total operating expenses Operating Income Loss Operating income Nonoperating Income Expense Interest and other expense, net Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Income Tax Expense Benefit Benefit for income taxes Income Loss From Equity Method Investments Equity investment loss Equity investment loss Net Income Loss Net income/(loss) Earnings Per Share [Abstract] Earnings Per Share Basic Basic Earnings Per Share Diluted Diluted Weighted Average Number Of Shares Outstanding [Abstract] Weighted Average Number Of Shares Outstanding Basic Basic Shares, basic Weighted Average Number Of Diluted Shares Outstanding Shares, diluted Payroll taxes for deferred stock units. Payroll Taxes For Deferred Stock Units Payroll taxes for deferred stock units Share-based compensation attributable to acquisition. Share Based Compensation Attributable To Acquisition Share-based compensation attributable to acquisition Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Statement Equity Components [Axis] Equity Components Equity Component [Domain] Equity Component Common Stock [Member] Common Stock [Member] Additional Paid In Capital [Member] Additional Paid-in Capital [Member] Treasury Stock [Member] Treasury Stock [Member] Retained Earnings [Member] Retained Earnings [Member] Restatement [Axis] Revision of Prior Period Restatement [Domain] Revision of Prior Period Restatement Adjustment [Member] As Adjusted [Member] Cumulative Effect Period Of Adoption [Axis] Cumulative Effect, Period of Adoption Cumulative Effect Period Of Adoption [Domain] Cumulative Effect, Period of Adoption Cumulative Effect Period Of Adoption Adjustment [Member] Cumulative Effect of Changes in Accounting Principles [Member] Statement [Line Items] Statement [Line Items] Shares Issued Balance, shares Balance, shares Stock Issued During Period Value Share Based Compensation Issuance of common stock for share- based award compensation plans Stock Issued During Period Shares Share Based Compensation Issuance of common stock for share-based award compensation plans, shares Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Share-based compensation The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Acquired Intangibles Amortization Acquired intangibles amortization Payment for payroll taxes for deferred stock and market stock units. Payment For Payroll Taxes For Deferred Stock And Market Stock Units Payroll taxes for deferred stock and market stock units Statement Of Cash Flows [Abstract] Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities Profit Loss Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Share Based Compensation Share-based compensation costs Depreciation And Amortization Depreciation and amortization Increase Decrease In Deferred Income Taxes Deferred taxes Amortization Of Debt Discount Premium Amortization of convertible debt discount and issuance costs Amortization Of Financing Costs Amortization of debt issuance costs Entity Central Index Key Entity Central Index Key Lessee operating lease liability payments due after year four. Lessee Operating Lease Liability Payments Due After Year Four Thereafter Cover [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 Trading Symbol Trading Symbol Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Display driver technology. Display Driver Technology [Member] Display Driver Technology [Member] Audio and video technology. Audio And Video Technology [Member] Audio and Video Technology [Member] Customer Relationships [Member] Customer Relationships [Member] Wireless and connectivity technology. Wireless And Connectivity Technology [Member] Wireless and Connectivity Technology [Member] Video interface technology. Video Interface Technology [Member] Video Interface Technology [Member] Licensed technology and other. Licensed Technology And Other [Member] Licensed Technology and Other [Member] Patents [Member] Patents [Member] Backlog. Backlog [Member] Backlog [Member] Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets Gross Gross Carrying Value Finite Lived Intangible Assets Accumulated Amortization Accumulated Amortization Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Income Statement Location Cost Of Sales [Member] Cost of Revenue [Member] Amortization Of Intangible Assets Acquired intangibles amortization Lease expiration year. Lease Expiration Year Lease Expiration Year. Lessee Lease Description [Table] Lessee Lease Description [Table] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Lessee Operating Lease Option To Extend Lease Option to Extend Lessee Operating Lease Renewal Term Duration of Extending leases Lessee Operating Lease Existence Of Option To Extend Lessee, Operating Lease, Existence of Option to Extend Operating Lease Expense Operating Leases, Expense Operating Lease Right Of Use Asset Operating lease right-of-use assets Operating Lease Liability Current Statement Of Financial Position [Extensible List] Operating Lease, Liability, Current Operating Lease Liability Current Operating lease liabilities Operating lease liabilities Operating Lease Liability Noncurrent Statement Of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent Operating Lease Liability Noncurrent Operating lease liabilities, long-term Operating lease liabilities, long-term Operating Lease Liability Statement Of Financial Position [Extensible List] Operating Lease, Liability Operating Lease Liability Total lease liabilities Operating Lease Cost Vesting [Domain] Vesting Share Based Compensation Award Tranche One [Member] Share-based Compensation Award, First Tranche [Member] Share Based Compensation Award Tranche Two [Member] Share-based Compensation Award, Second Tranche [Member] Share Based Compensation Award Tranche Three [Member] Share-based Compensation Award, Third Tranche [Member] Share-based Compensation Award, Fourth Tranche. Share Based Compensation Award Tranche Four [Member] Share-based Compensation Award, Fourth Tranche [Member] TSR Percentile Below 25 [Member] T S R Percentile Below25 [Member] TSR Percentile Below 25 [Member] TSR Percentile Above 75 [Member] T S R Percentile Above75 [Member] TSR Percentile Above 75 [Member] TSR Percentile 50 [Member] T S R Percentile50 [Member] TSR Percentile 50 [Member] Three year performance. Three Year Performance [Member] Three-Year Performance Period [Member] Four year performance. Four Year Performance [Member] Four-Year Performance Period [Member] Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Vesting period of the underlying awards Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage Vesting percentage of the underlying awards Percentage of potential payout. Percentage Of Potential Payout Potential payout range Potential payout adjustment ratio. Potential Payout Adjustment Ratio Potential payout adjustment ratio Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Unrecognized share-based compensation cost Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Unrecognized share-based compensation, period for recognition Threshold percentage of earnings per share to trigger pay out. Threshold Percentage Of Earnings Per Share To Trigger Pay Out Threshold percentage of earnings per share to trigger pay out Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 Requisite service period Accrued Liabilities Current And Noncurrent Accrued liability for outstanding stock units Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award Shares purchased Share Based Compensation Arrangement By Share Based Payment Award Per Share Weighted Average Price Of Shares Purchased Increase (decrease) in interest and penalties accrued related to unrecognized tax benefits Unrecognized Tax Benefits Period Increase Decrease Unrecognized Tax Benefits, Period Increase (Decrease) Unrecognized Tax Benefits Gross unrecognized tax benefits Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued Interest and penalties accrued related to unrecognized tax benefits Increase In Unrecognized Tax Benefits Is Reasonably Possible Estimated increase in unrecognized tax benefit in next twelve months Number of product categories. Number Of Product Categories Number of product Number Of Operating Segments Number of operating segments Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Raw materials and work-in-progress Inventory Finished Goods Net Of Reserves Finished goods Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Retained Earnings Accumulated Deficit Retained earnings Stockholders Equity Balance, value Balance, value Total stockholders' equity Liabilities And Stockholders Equity Liabilities and stockholders' equity Allowance For Doubtful Accounts Receivable Current Allowance for doubtful accounts receivable Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, accumulated depreciation Common Stock Par Or Stated Value Per Share Statement Geographical [Axis] Geographical Segment Geographical [Domain] Geographical CHINA China [Member] TAIWAN, PROVINCE OF CHINA Taiwan [Member] JAPAN Japan [Member] Other foreign country. Other Foreign Country [Member] Other [Member] KOREA, REPUBLIC OF South Korea [Member] UNITED STATES United States [Member] Revenues From External Customers And Long Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Cash paid for operating leases included in operating cash flows Right Of Use Asset Obtained In Exchange For Operating Lease Liability Supplemental non-cash information related to lease liabilities arising from obtaining right-of-use assets Operating Lease Weighted Average Remaining Lease Term1 Operating Lease, Weighted Average Remaining Lease Term Operating Lease Weighted Average Discount Rate Percent Operating Lease, Weighted Average Discount Rate, Percent Lessee Operating Lease Liability Payments Remainder Of Fiscal Year Lessee Operating Lease Liability Payments Due Next Twelve Months Lessee Operating Lease Liability Payments Due Year Two Lessee Operating Lease Liability Payments Due Year Three Lessee Operating Lease Liability Payments Due Year Four Lessee Operating Lease Liability Payments Due Lessee Operating Lease Liability Undiscounted Excess Amount Less: interest Customer obligation. Customer Obligation Customer obligations Accrued liabilities for inventory purchase. Accrued Liabilities For Inventory Purchase Inventory obligations Other Sundry Liabilities Current Other Deferred Tax Liabilities Convertible number of shares, principal amount of notes Debt Instrument Convertible Conversion Price1 Initial conversion price per share of common stock Percentage of principal amount of notes equal to repurchase price. Percentage Of Principal Amount Of Notes Equal To Repurchase Price Note repurchase price, percentage of principal amount of notes Nonconvertible debt borrowing rate. Nonconvertible Debt Borrowing Rate Nonconvertible debt borrowing rate Convertible debt issuance costs pro rata to equity components. Convertible Debt Issuance Costs Pro Rata To Equity Components Convertible debt issuance costs pro rata to equity components Convertible debt issuance costs pro rata to debt components. Convertible Debt Issuance Costs Pro Rata To Debt Components Convertible debt issuance costs pro rata to debt components Debt instrument amortization period. Debt Instrument Amortization Period Debt amortization period Debt Instrument Convertible Carrying Amount Of The Equity Component Equity component of the principal amount of the convertible debt Debt Instrument Term Debt instrument term Deferred Finance Costs Gross Debt issuance costs Purchase agreement. Purchase Agreement [Member] Purchase Agreement [Member] Counterparty Name [Axis] Counterparty Name Repurchase Agreement Counterparty Name [Domain] Counterparty Name Wells Fargo Securities, LLC. Wells Fargo Securities L L C [Member] Wells Fargo Securities, LLC [Member] Debt Instrument Unamortized Discount Unamortized amounts of debt discount Maximum permitted leverage ratio. Maximum Permitted Leverage Ratio Maximum leverage ratio permitted Permitted leverage ratio prior to amendment. Permitted Leverage Ratio Prior To Amendment Minimum leverage ratio permitted Line Of Credit Facility Maximum Borrowing Capacity Line of credit, maximum borrowing capacity Debt Instrument Covenant Description Covenant description Line of credit facility allowable requests for additional borrowing. Line Of Credit Facility Allowable Requests For Additional Borrowing Line of credit facility allowable requests for additional borrowing Line Of Credit Outstanding principal amount Debt Weighted Average Interest Rate Weighted average annualized interest rate on borrowings Line of credit facility repayment date description. Line Of Credit Facility Repayment Date Description Repayment date, description Percentage of voting capital stock of certain foreign subsidiaries collateralized. Percentage Of Voting Capital Stock Of Certain Foreign Subsidiaries Collateralized Percentage of voting capital stock Debt Instrument Description Of Variable Rate Basis Description of base rate Debt Instrument Basis Spread On Variable Rate1 Basis spread on variable rate Line Of Credit Facility Unused Capacity Commitment Fee Percentage Commitment fee percentage of unused portion Maximum accounts receivable financings. Maximum Accounts Receivable Financings Maximum accounts receivable financings per quarter Minimum interest coverage ratio. Minimum Interest Coverage Ratio Minimum interest coverage ratio Employee service share based compensation tax benefit (expense) from compensation expense. Employee Service Share Based Compensation Tax Benefit Expense From Compensation Expense Income tax benefit on share-based compensation Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Research And Development Expense [Member] Research and Development [Member] Selling General And Administrative Expenses [Member] Selling, General, and Administrative [Member] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Allocated Share Based Compensation Expense Total Plan Name [Axis] Plan Name Plan Name [Domain] Plan Name An employee stock purchase plan which allows employees to designate a portion of their base compensation, subject to legal restrictions and limitations, to purchase shares of common stock at 85% of the lesser of the FMV at the beginning of the offering period or the exercise date. The offering period extends for up to two years and includes four exercise dates occurring at six-month intervals. If the FMV at an exercise date is less than the FMV at the beginning of the offering period, the current offering period will terminate and a new two-year offering period will commence. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Two thousand nineteen equity and incentive compensation plan. Two Thousand Nineteen Equity And Incentive Compensation Plan [Member] 2019 Incentive Plan [Member] Two thousand nineteen inducement equity plan. Two Thousand Nineteen Inducement Equity Plan [Member] 2019 Inducement Equity Plan [Member] Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Number of shares approved by stockholders Weighted average purchase price Proceeds From Stock Plans Cash received Income tax disclosure. Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income tax disclosure. Income Tax Disclosure [Table] Income Tax Disclosure [Table] Increase (Decrease) in unrecognized tax benefit income tax penalties and interest accrued. Increase Decrease In Unrecognized Tax Benefit Income Tax Penalties And Interest Accrued Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized Number of shares authorized to purchase Common Stock Capital Shares Reserved For Future Issuance Common stock reserved for issuance Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Stock Issued During Period Shares Stock Options Exercised Stock Option Awards Outstanding, Exercised Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Stock Option Awards Outstanding, Expired Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Fair value of outstanding stock units Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted Average Exercise Price, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price Weighted Average Exercise Price, Expired Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate intrinsic value Share based compensation arrangement by share based payment award intrinsic value closing price. Share Based Compensation Arrangement By Share Based Payment Award Intrinsic Value Closing Price Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding Employee Stock Option [Member] Stock option outstanding [Member] Share based compensation arrangement by share based payment award equity instruments other than options adjustments for performance results attained. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustments For Performance Results Attained Stock Unit Awards, Performance adjustment Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Stock Unit Awards, Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Stock Unit Awards, Delivered/Released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Stock Unit Awards, Forfeited Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding Shares Paid For Tax Withholding For Share Based Compensation Shares withheld to meet statutory minimum tax withholding requirements Adjustments Related To Tax Withholding For Share Based Compensation Shares valued withheld to meet statutory minimum tax withholding requirements Vesting [Axis] Vesting Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Product Or Service [Axis] Product and Service Products And Services [Domain] Product and Service Mobile product applications. Mobile Product Applications [Member] Mobile Product Applications [Member] Pc product applications. Pc Product Applications [Member] PC Product Applications [Member] Internet of things product applications. Internet Of Things Product Applications [Member] Internet of Things Product Applications [Member] Entity Wide Information Revenue From External Customer [Line Items] Revenue from External Customer [Line Items] Concentration Risk [Table] Concentration Risk [Table] Major Customers [Axis] Customer Name Of Major Customer [Domain] Customer Customer A. Customer A [Member] Customer A [Member] Customer B. Customer B [Member] Customer B [Member] Customer C. Customer C [Member] Customer C [Member] Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Concentration Risk Type Customer Concentration Risk [Member] Customer Concentration Risk [Member] Concentration Risk [Line Items] Revenue, Major Customer [Line Items] Concentration Risk Percentage1 Concentration Risk, Percentage Credit Concentration Risk [Member] Credit Concentration Risk [Member] Schedule Of Restructuring And Related Costs [Table] Schedule Of Restructuring And Related Costs [Table] Restructuring Plan [Axis] Restructuring Plan Restructuring Plan [Domain] Restructuring Plan Fiscal two thousand twenty one restructuring plan. Fiscal Two Thousand Twenty One Restructuring Plan [Member] Fiscal 2021 Restructuring Plan [Member] Restructuring Cost And Reserve [Axis] Restructuring Type Type Of Restructuring [Domain] Type of Restructuring Employee severance and benefits. Employee Severance And Benefits [Member] Employee Severance and Benefits [Member] Fiscal two thousand twenty restructuring plan. Fiscal Two Thousand Twenty Restructuring Plan [Member] Fiscal 2020 Retructucturing Plan [Member] Restructuring Cost And Reserve [Line Items] Restructuring Cost And Reserve [Line Items] Restructuring Reserve Ending Balance Restructuring Reserve Restructuring Reserve Accrual Adjustment1 Additional accruals Payments For Restructuring Cash payments Restructuring Reserve Period Increase Decrease Adjustments Restructuring Reserve Settled Without Cash2 Non-cash settlements Convertible notes payable conversion request. Convertible Notes Payable Conversion Request Convertible notes payable conversion request Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Type Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items]