Organization, Consolidation and Presentation of Financial Statements [Abstract] THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Segment Reporting [Abstract] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] All other Corporate, Non-Segment [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk [Member] Geographic Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales [Member] Sales [Member] Statement, Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] CHINA CHINA TAIWAN, PROVINCE OF CHINA TAIWAN, PROVINCE OF CHINA United States UNITED STATES Other Asia Other Asia [Member] Other Asia [Member] Europe Europe [Member] Other Other Countries [Member] Other Countries [Member] Revenues from External Customers [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues Revenues Income Tax Disclosure [Abstract] Significant components of net deferred income taxes Components of Deferred Tax Assets and Liabilities [Abstract] Deferred income tax assets: Components of Deferred Tax Assets [Abstract] Inventory reserve Deferred Tax Assets, Inventory Equity compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Net operating loss carry-forwards Deferred Tax Assets, Operating Loss Carryforwards Research and other credits Deferred Tax Assets, Tax Credit Carryforwards, Research Employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits Other deferred assets Deferred Tax Assets, Other Total deferred income tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred income tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred income tax liabilities: Components of Deferred Tax Liabilities [Abstract] Amortization and purchase accounting basis difference Deferred Tax Liabilities, Goodwill and Intangible Assets Accumulated depreciation/basis difference Deferred Tax Liabilities, Property, Plant and Equipment Total deferred tax liabilities Total deferred tax liabilities Total deferred tax liabilities Amounts included in consolidated balance sheets: Amounts Included In Consolidated Balance Sheets [Abstract] Amounts included in consolidated balance sheets. Non-current assets Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Non-current liabilities Deferred Tax Liabilities, Net, Noncurrent Total deferred income tax liabilities Deferred Tax Liabilities, Net Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Operating Segments [Member] Operating Segments [Member] Statement, Business Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] MP [Member] Mobile Products [Member] Mobile Products [Member] IDP [Member] Infrastructure and Defense Products [Member] Infrastructure and Defense Products [Member] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Summary of details of reportable segments Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Revenue: Segment Reporting Information, Revenue for Reportable Segment [Abstract] Income from operations: Segment Reporting Information, Operating Income (Loss) [Abstract] Income from operations Operating Income (Loss) Interest expense Interest Expense Interest income Investment Income, Net Other expense (Note 8) Other Nonoperating Income (Expense) (Loss) income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Equity [Abstract] SHAREHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] Income Statement [Abstract] Cost of Goods and Services Sold Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense Selling, general and administrative Selling, General and Administrative Expense Other operating expense (Note 11) Other Operating Income (Expense), Net Total operating expenses Operating Expenses Operating income Interest expense (Note 8) Income before income taxes Income tax benefit (expense) (Note 12) Income Tax Expense (Benefit) Net income (loss) Net Income (Loss) Attributable to Parent Net income (loss) per share (Note 13): Earnings Per Share [Abstract] Basic Earnings Per Share, Basic Diluted Earnings Per Share, Diluted Weighted average shares of common stock outstanding (Note 13): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted Debt Disclosure [Abstract] DEBT Debt Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] TriQuint Merger TriQuint Merger [Member] TriQuint Merger [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] Segments [Axis] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [Member] Goodwill and Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets amortization (Note 7) Amortization of Intangible Assets Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Reconciliation of gross unrecognized tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Beginning balance Unrecognized Tax Benefits Additions based on positions related to current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions for tax positions in prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions in prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Ending balance Restructuring and Related Activities [Abstract] RESTRUCTURING Restructuring and Related Activities Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Summary of activity of the Company's director and employee stock option plans Share-based Compensation, Stock Options, Activity [Table Text Block] Restricted share plans Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table 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] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Common stock reserved for future issuance Schedule Of Shares Reserved For Future Issuance [Abstract] Schedule of shares reserved for future issuance. Outstanding stock options under formal directors’ and employees’ stock option plans Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Possible future issuance under Company stock incentive plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Employee stock purchase plan Employee Stock Purchase Plan Shares Reserve For Future Issuance Employee stock purchase plan shares reserve for future issuance. Restricted stock-based units granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Total shares reserved Common Stock, Capital Shares Reserved for Future Issuance Statement of Comprehensive Income [Abstract] Net income (loss) Total comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gain on marketable securities, net of tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Change in pension liability, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax Foreign currency translation adjustment, including intra-entity foreign currency transactions that are of a long-term-investment nature Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Reclassification adjustments, net of tax: AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Foreign currency gain recognized and included in net loss Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Amortization of pension actuarial loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Loss on debt extinguishment (Note 8) Gain (Loss) on Extinguishment of Debt Deferred income taxes Deferred Income Tax Expense (Benefit) Foreign currency adjustments Foreign Currency Transaction Gain (Loss), Unrealized Asset impairment (Note 11) Asset Impairment Charges Stock-based compensation expense Share-based Compensation Other, net Other Operating Activities, Cash Flow Statement Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid expenses and other current and non-current assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued liabilities Increase (Decrease) in Accrued Liabilities Income taxes payable and receivable Increase (Decrease) in Income Taxes Payable Other liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Purchase of available-for-sale securities Payments to Acquire Debt Securities, Available-for-sale Proceeds from sales and maturities of available-for-sale debt securities Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Purchase of business, net of cash acquired (Note 6) Payments to Acquire Businesses, Net of Cash Acquired Other investing Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Repurchase and payment of debt (Note 8) Repayments of Long-term Debt Proceeds from the issuance of common stock Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Repurchase of common stock, including transaction costs (Note 15) Payments for Repurchase of Common Stock Proceeds from debt issuances (Note 8) Proceeds from (Repayments of) Debt Tax withholding paid on behalf of employees for restricted stock units Payments Related to Tax Withholding for Share-based Compensation Other financing Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Net (decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash at the beginning of the period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at the end of the period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid during the year for interest Interest Paid, Including Capitalized Interest, Operating and Investing Activities Cash paid during the year for income taxes Income Taxes Paid Non-cash investing and financing information: Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] Capital expenditure adjustments included in liabilities Change in Capital Expenditures Incurred but Not Paid Change in Capital Expenditures Incurred but Not Paid Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Minimum Minimum [Member] Weighted Average [Member] Weighted Average [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Bank of America Syndicate [Member] Bank of America Syndicate [Member] Bank of America Syndicate [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Federal Funds Rate Federal Funds Rate [Member] Federal Funds Rate [Member] Eurodollar Eurodollar [Member] Base Rate Base Rate [Member] Credit Agreement [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Senior Delayed Draw Term Loan Senior Delayed Draw Term Loan [Member] Senior Delayed Draw Term Loan [Member] Standby Letters of Credit Standby Letters of Credit [Member] Swingline Loan Bridge Loan [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Notes Senior Notes [Member] 6.75% Senior Notes due 2023 6.75% Senior Notes due 2023 [Member] 6.75% Senior Notes due 2023 [Member] 7.00% Senior Notes due 2025 7.00% Senior Notes due 2025 [Member] 7.00% Senior Notes due 2025 [Member] 5.5% Senior Notes due 2026 5.5% Senior Notes due 2026 [Member] 5.5% Senior Notes due 2026 [Member] Credit Agreement Credit Agreement [Member] Credit Agreement [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Senior Delayed Draw Term Loan, Maximum Amount Senior Delayed Draw Term Loan, Maximum Amount Senior Delayed Draw Term Loan, Maximum Amount Debt Instrument, Face Amount Debt Instrument, Face Amount Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Interest Expense, Borrowings Interest Expense, Borrowings Interest Costs Capitalized Interest Costs Capitalized Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Debt Instrument, Redemption Price, Percentage Debt Instrument, Redemption Price, Percentage Debt, Interest Rate, Default Increase, Percentage Debt, Interest Rate, Default Increase, Percentage Debt, Interest Rate, Default Increase, Percentage Interest paid on notes Interest paid on notes Interest paid on notes Repayments of Senior Debt Repayments of Senior Debt Senior notes, redemption percentage, actual Senior notes, redemption percentage, actual Senior notes, redemption percentage, actual Tender Offer Cap Tender Offer Cap Tender Offer Cap - maximum amount available to be repurchased under a tender offer Interest paid Long-term Debt, Fair Value Long-term Debt, Fair Value Net carrying amount of debt Long-term Debt Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Line of Credit Facility, Maximum Consolidated Total Leverage Ratio Allowed Line of Credit Facility, Maximum Consolidated Total Leverage Ratio Allowed Line of Credit Facility, Maximum Consolidated Total Leverage Ratio Allowed Permitted acquisition amount for increase in leverage ratio Permitted acquisition amount for increase in leverage ratio Permitted acquisition amount for increase in leverage ratio Line of credit facility, maximum consolidated total leverage ratio allowed, with permitted acquisition Line of credit facility, maximum consolidated total leverage ratio allowed, with permitted acquisition Line of credit facility, maximum consolidated total leverage ratio allowed, with permitted acquisition Line of Credit Facility, Minimum Consolidated Interest Coverage Ratio Required Line of Credit Facility, Minimum Consolidated Interest Coverage Ratio Required Line of Credit Facility, Minimum Consolidated Interest Coverage Ratio Required Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum amount of increase that may be requested Line of Credit Facility, Maximum amount of increase that may be requested Line of Credit Facility, Maximum amount of increase that may be requested Gain (Loss) on Extinguishment of Debt Consolidating Financial Information [Abstract] Consolidating Financial Information [Abstract] Condensed consolidating balance sheets Condensed Balance Sheet [Table Text Block] Condensed consolidating statements of operations and comprehensive income (loss) Condensed Statement of Comprehensive Income [Table Text Block] Condensed consolidating statements of cash flows Condensed Cash Flow Statement [Table Text Block] OPERATING SEGMENT AND GEOGRAPHIC INFORMATION Segment Reporting Disclosure [Text Block] NET INCOME (LOSS) PER SHARE Earnings Per Share [Text Block] Common stock reserved for future issuance Schedule Of Shares Reserved For Future Issuance [Table Text Block] Schedule of shares reserved for future issuance. Risks and Uncertainties [Abstract] CONCENTRATIONS OF CREDIT RISK Concentration Risk Disclosure [Text Block] Investments and Fair Value Measurements [Abstract] Investments and fair value measurements. Schedule of Available-for-sale Debt Securities Schedule of Available-for-sale Securities [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Schedule of available-for-sale debt securities Debt Securities, Available-for-sale [Line Items] Available-for-sale securities Available-for-sale Securities [Table Text Block] Fair value of the financial assets measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Investments and fair value measurments [Abstract] Investments and fair value measurments [Abstract] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Available-for-sale Securities Available-for-sale Securities Equity Securities without Readily Determinable Fair Value, Amount Equity Securities without Readily Determinable Fair Value, Amount Property, Plant and Equipment Property, Plant and Equipment [Member] Other Countries Long-Lived Assets [Line Items] Long-lived tangible assets Property, Plant and Equipment, Net BUSINESS ACQUISITION DISCLOSURE [Abstract] BUSINESS ACQUISITION DISCLOSURE[Abstract] BUSINESS ACQUISITIONS Business Combination Disclosure [Text Block] Long-term debt (Note 8) Unamortized Debt Issuance Expense Unamortized Debt Issuance Expense Numerator: Earnings Per Share Reconciliation [Abstract] Numerator for basic and diluted net (loss) income per share - net (loss) income available to common stockholders Denominator: Denominator [Abstract] Denominator. Denominator for basic net (loss) income per share — weighted average shares Effect of dilutive securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Stock-based awards Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Denominator for diluted net (loss) income per share — adjusted weighted average shares and assumed conversions Basic net (loss) income per share Diluted net (loss) income per share Inventory Disclosure [Abstract] Components of inventories Schedule of Inventory, Current [Table Text Block] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Restricted share plans Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Balance at beginning balance, Shares Balance at beginning balance, Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted, Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted, Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested, Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested, Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited, Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited, Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Balance at ending balance, Shares Balance at ending balance, Weighted-Average Grant-Date Fair Value Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents (Notes 1 & 3) Cash and Cash Equivalents, at Carrying Value Accounts receivable, less allowance of $40 and $134 as of March 30, 2019 and March 31, 2018, respectively Accounts Receivable, Net, Current Inventories (Notes 1 & 4) Inventory, Net Prepaid expenses Prepaid Expense, Current Other receivables (Note 1) Other Receivables Other current assets (Notes 1 & 9) Other Assets, Current Total current assets Assets, Current Property and equipment, net (Notes 1 & 5) Goodwill (Notes 1, 6 & 7) Goodwill Intangible assets, net (Notes 1, 6 & 7) Intangible Assets, Net (Excluding Goodwill) Long-term investments (Notes 1 & 3) Long-term Investments Other non-current assets (Notes 9 & 12) Other Assets, Noncurrent Total assets Assets LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities (Notes 1, 9 & 11) Accrued Liabilities, Current Other current liabilities (Note 12) Other Liabilities, Current Total current liabilities Liabilities, Current Deferred tax liabilities (Note 12) Other long-term liabilities (Notes 9, 11 & 12) Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingent liabilities (Note 10) Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.0001 par value; 5,000 shares authorized; no shares issued and outstanding Preferred Stock, Value, Issued Common stock and additional paid-in capital, $.0001 par value; 405,000 shares authorized; 119,063 and 126,322 shares issued and outstanding at March 30, 2019 and March 31, 2018, respectively Common Stock, Value, Issued Accumulated other comprehensive loss, net of tax 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 Condensed Financial Statements [Table] Condensed Financial Statements [Table] Eliminations and Reclassifications Consolidation, Eliminations [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company [Member] Parent Company [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Document Period End Date Document Period End Date Cash and cash equivalents Accounts receivable, less allowance Intercompany receivables Intercompany receivables Intercompany receivables Inventories Other receivables Other current assets Goodwill Long-term Investments Long-term intercompany accounts and notes receivable Intercompany Notes Receivable, Long-Term Intercompany Notes Receivable, Long-Term Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Other Assets, Noncurrent Intercompany accounts and notes payable Intercompany accounts and notes payable Intercompany accounts and notes payable Accrued liabilities Other current liabilities Deferred tax liabilities Long-term intercompany accounts and notes payable Intercompany accounts and notes payable, long-term Intercompany accounts and notes payable, long-term Other long-term liabilities Total stockholders’ equity Consolidating Financial Information Consolidating Financial Information [Text Block] Consolidating Financial Information [Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment [Table Text Block] Retirement Benefits [Abstract] Schedule of Defined Contribution and Defined Benefit Pension Plans Disclosures [Table] Schedule of Defined Contribution Plans Disclosures [Table] Schedule of Defined Contribution Plans Disclosures. Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee termination benefits Employee Severance [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued liabilities Accrued Liabilities [Member] Retirement Plan Type Retirement Plan Type [Axis] Retirement Plan Type Retirement Plan Type [Domain] Foreign Plan [Member] Foreign Plan [Member] Defined Contribution and Benefit Pension Plans Disclosures [Axis] Defined Contribution and Benefit Pension Plans Disclosures [Axis] Defined Contribution and Benefit Pension Plans Disclosures. Defined Contribution and Benefit Pension Plans Disclosures [Domain] Defined Contribution and Benefit Pension Plans Disclosures [Domain] Defined Contribution and Benefit Pension Plans Disclosures [Domain] U. S. Defined Contribution Plan [Member] United States Defined Contribution Plan [Member] United states defined contribution plan. Non-Qualified Deferred Compensation Plan [Member] Non-Qualified Deferred Compensation Plan [Member] Non-Qualified Deferred Compensation Plan [Member] Defined Contribution and Defined Benefit Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Retirement Benefit Plan (Textual) Retirement Benefit Plan (Textual) [Abstract] Retirement Benefit Plan. Defined Contribution Plan, Company Contribution Amount Defined Contribution Plan, Employer Discretionary Contribution Amount Defined benefit plan insurance receivable Defined benefit plan insurance receivable Defined benefit plan insurance receivable Defined Benefit Pension Plan, Benefit Obligation Defined Benefit Plan, Benefit Obligation Defined Benefit Pension Plan, Net Periodic Benefit Cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Number of retirement benefit plans offered by the Company Number of retirement benefit plans offered by the Company Number of retirement benefit plans offered by the Company Assets held in rabbi trust Assets Held-in-trust Assets held in rabbi trust, current Assets Held-in-trust, Current Assets held in rabbi trust, noncurrent Assets Held-in-trust, Noncurrent Deferred compensation plan liability Deferred Compensation Liability, Current and Noncurrent Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Gross Profit Operating Expenses [Abstract] Other operating expense (income) Income (loss) from operations Income (loss) before income taxes Income Tax (Benefit) Expense Income in subsidiaries Income (Loss) from Subsidiaries, Net of Tax Comprehensive income (loss) Quarterly Financial Information Disclosure [Abstract] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] State net operating losses and credits State net operating losses and credits [Member] State net operating losses and credits [Member] Integration related costs Business Combination, Integration Related Costs Restructuring costs Restructuring Charges Start-up costs Start-up costs Start-up costs Income tax expense (benefit) Loss on extinguishment of debt Quarterly Financial Summary (Unaudited) Quarterly Financial Data [Abstract] Quarterly Financial Summary (Unaudited) Selected Quarterly Financial Information [Abstract] Gross profit Net (loss) income per share: Commitments and Contingencies Disclosure [Abstract] Schedule of Operating Lease Future Minimum Lease Payments [Table] Schedule of Operating Leased Assets [Table] Property Subject to or Available for Operating Lease [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Schedule of Operating Lease Future Minimum Lease Payments [Line Items] Schedule of Capital and Opearting Lease Future Minimum Lease Payments [Line Items] [Line Items] for Schedule of Capital and Opearting Lease Future Minimum Lease Payments [Table] Operating Leases due 2020 Operating Leases, Future Minimum Payments Due, Next Twelve Months Operating Leases due 2021 Operating Leases, Future Minimum Payments, Due in Two Years Operating Leases due 2022 Operating Leases, Future Minimum Payments, Due in Three Years Operating Leases due 2023 Operating Leases, Future Minimum Payments, Due in Four Years Operating Leases due 2024 Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases due Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total operating minimum payment Operating Leases, Future Minimum Payments Due Capital Lease due 2020 Capital Leases, Future Minimum Payments Due, Next Twelve Months Capital Lease due 2021 Capital Leases, Future Minimum Payments Due in Two Years Capital Lease due 2022 Capital Leases, Future Minimum Payments Due in Three Years Capital Lease due 2023 Capital Leases, Future Minimum Payments Due in Four Years Capital Lease due 2024 Capital Leases, Future Minimum Payments Due in Five Years Capital Lease due Thereafter Capital Leases, Future Minimum Payments Due Thereafter Total capital lease minimum payment Capital Leases, Future Minimum Payments Due Purchase commitments due 2020 Purchase Obligation, Due in Next Twelve Months Purchase commitments due 2021 Purchase Obligation, Due in Second Year Purchase commitments due 2022 Purchase Obligation, Due in Third Year Purchase commitments due 2023 Purchase Obligation, Due in Fourth Year Purchase commitments due 2024 Purchase Obligation, Due in Fifth Year Purchase commitments due Thereafter Purchase Obligation, Due after Fifth Year Total purchase commitments Purchase Obligation Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Mobile Products Infrastructure and Defense Products GreenPeak GreenPeak [Member] GreenPeak [Member] Developed Technology Developed Technology Rights [Member] Customer Relationships Customer Relationships [Member] In-process research and development In Process Research and Development [Member] Transferred and in service in-process research and development Transferred and in service in-process research and development [Member] Transferred and in service in-process research and development [Member] Finite-lived Intangible Assets Acquired Finite-lived Intangible Assets Acquired Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Accumulated impairment losses and write-offs Goodwill, Impaired, Accumulated Impairment Loss Intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Intangible assets amortization (Note 6) Indefinite-lived Intangible Assets, Period Increase (Decrease) Indefinite-lived Intangible Assets, Period Increase (Decrease) Finite-Lived Intangible Assets, Period Increase (Decrease) Finite-Lived Intangible Assets, Period Increase (Decrease) In-process research and development placed in service In-process research and development placed in service In-process research and development placed in service during the period Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Remaining research and development costs Remaining research and development costs Remaining estimated research and development costs to complete COMMITMENTS AND CONTINGENT LIABILITIES Commitments and Contingencies Disclosure [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Current (expense) benefit: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current (expense) benefit Current Income Tax Expense (Benefit) Deferred (expense) benefit: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred (expense) benefit Total Principles of Consolidation and Basis of Presentation Consolidation, Policy [Policy Text Block] Accounting Periods Fiscal Period, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Investments Investment, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Product Warranty Guarantees, Indemnifications and Warranties Policies [Policy Text Block] Other Receivables Receivables, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Accrued Liabilities Accrued Liabilities [Policy Text Block] Accrued Liabilities [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Precious Metals Reclaim Precious Metals Reclaim [Policy Text Block] Precious Metals Reclaim [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Operating Segment Segment Reporting, Policy [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] INCOME TAXES Income Tax Disclosure [Text Block] GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Net Cash Provided by (Used in) Operating Activities Net transactions with related parties, investing Net transactions with related parties, investing Net transactions with related parties, investing Repayments of Long-term Debt Net transactions with related parties Net transactions with related parties Net transactions with related parties Effect of Exchange Rate on Cash and Cash Equivalents Valuation Allowance [Table] Valuation Allowance [Table] Earnings Per Share, Type [Axis] Earnings Per Share, Type [Axis] Earnings Per Share, Type [Axis] Earnings Per Share, Type [Domain] Earnings Per Share, Type [Domain] [Domain] for Earnings Per Share, Type [Axis] Basic Basic [Member] Basic [Member] Diluted Diluted [Member] Diluted [Member] Nature of Tax Expense [Axis] Nature of Tax Expense [Axis] Nature of Tax Expense [Axis] Nature of Tax Expense [Axis] [Domain] Nature of Tax Expense [Domain] [Domain] for Nature of Tax Expense [Axis] Unremitted foreign earnings Unremitted foreign earnings [Member] Unremitted foreign earnings [Member] Additional foreign tax credits Additional foreign tax credits [Member] Additional foreign tax credits [Member] Entity by Location [Axis] Entity by Location [Axis] Location [Domain] Location [Domain] NETHERLANDS NETHERLANDS Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Research Tax Credit Carryforward [Member] Research Tax Credit Carryforward [Member] Foreign deferred tax assets Foreign [Member] Foreign. State State and Local Jurisdiction [Member] U.S. Tax Cuts and Jobs Act, Effective 2018 [Member] U.S. Tax Cuts and Jobs Act, Effective 2018 [Member] U.S. Tax Cuts and Jobs Act, Effective 2018 [Member] GILTI GILTI [Member] GILTI [Member] U.S. Federal Internal Revenue Service (IRS) [Member] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Tax rate changes Tax rate changes [Member] Tax rate changes [Member] Domestic deferred tax assets Domestic deferred tax assets [Member] Domestic deferred tax assets [Member] Foreign net operating losses Foreign net operating losses [Member] Foreign net operating losses [Member] State tax credits State tax credits [Member] State tax credits [Member] Valuation Allowance [Line Items] Valuation Allowance [Line Items] U.S. statutory federal rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Income Taxes (Textual) Income Taxes (Textual) [Abstract] Income taxes. Valuation Allowance Valuation Allowance, Deferred Tax Asset, Change in Amount Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Loss carryovers Operating Loss Carryforwards Income tax credits Tax Credit Carryforward, Amount Foreign jurisdiction exemption reduction, Dollar Amount Income Tax Holiday, Aggregate Dollar Amount Foreign jurisdiction exemption reduction, per share amount Income Tax Holiday, Income Tax Benefits Per Share Gross unrecognized tax benefits Unrecognized tax benefits, if recognized, would impact the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Interest and penalties expense (benefit) recognized related to uncertain tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Accrued interest and penalties related to unrecognized tax benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Long-term Tax Liability Long-term Tax Liability Long-term Tax Liability Period gross unrecognized tax benefits may be reduced Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Period Significant change in unrecognized tax benefits is reasonably possible period. Taxes Payable, Current Taxes Payable, Current Income Taxes Receivable, Current Income Taxes Receivable, Current Long-term income taxes payable Long-term income taxes payable Long-term income taxes payable Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Deferred Income Tax Expense (Benefit) Measurement period adjustment, income tax expense (benefit) Measurement period adjustment, income tax expense (benefit) Measurement period adjustment, income tax expense (benefit) Increase (decrease) in deferred tax assets Increase (decrease) in deferred tax assets Increase (decrease) in deferred tax assets Tax settlement Allowance for accounts receivable Allowance for Doubtful Accounts Receivable, Current Preferred stock, par value Preferred Stock, No Par Value 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 Common Stock, No 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 Income (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Accounts Receivable Accounts Receivable [Member] Credit Concentration Risk Credit Concentration Risk [Member] Major Customers [Axis] Customer [Axis] Name of Major Customer [Domain] Customer [Domain] Huawei Huawei [Member] Huawei [Member] Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Concentrations of Credit Risk (Textual) Concentrations of Credit Risk (Textual) [Abstract] Concentrations of credit risk. Percentage Concentration Risk, Percentage Auction rate securities Auction Rate Securities [Member] Cost Available-for-sale Securities, Amortized Cost Basis Gross unrealized losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Estimated fair value Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Total Equity Component [Domain] Common Stock [Member] Common Stock [Member] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Accumulated Deficit Retained Earnings [Member] Beginning Balance Beginning Balance, Shares Other comprehensive income (loss) Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes Exercise Of Stock Options And Vesting Of Restricted Stock Units Net Of Shares Withheld For Employee Taxes Value stock issued during the period as a result of the exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes. Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes, Shares Exercise Of Stock Options And Vesting Of Restricted Stock Units Net Of Shares Withheld For Employee Taxes Shares Number of shares issued during the period as a result of the exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes. Issuance of common stock in connection with employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Issuance of common stock in connection with employee stock purchase plan, Shares Stock Issued During Period, Shares, Employee Stock Purchase Plans Tax benefit from exercised stock options Adjustments Related to Tax Withholding for Share-based Compensation Cumulative-effect adoption of ASU 2014-09 Cumulative-effect adoption of ASU 2014-09 Cumulative-effect adoption of ASU 2014-09 Cumulative-effect adoption of ASU 2016-09 Cumulative-effect adoption of ASU 2016-09 Cumulative-effect adoption of ASU 2016-09 Cumulative-effect adoption of ASU 2016-16 Cumulative-effect adoption of ASU 2016-16 Cumulative-effect adoption of ASU 2016-16 Repurchase of common stock, including transaction costs Stock Repurchased During Period, Value Repurchase of common stock, including transaction costs, Shares Stock Repurchased During Period, Shares Stock-based compensation expense Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Ending Balance Ending Balance, Shares Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Money market funds Money Market Funds [Member] Equity Securities Equity Securities [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Cash equivalents Cash Equivalents, at Carrying Value Marketable Securities Marketable Securities Debt Securities, Available-for-sale Debt Securities, Available-for-sale Deferred compensation plan assets Deferred Compensation Plan Assets Total assets measured at fair value Assets, Fair Value Disclosure Total liabilities measured at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Subsequent Events [Abstract] Subsequent Event Subsequent Events [Text Block] The Company and Its Significant Accounting Policies [Table] The Company and Its Significant Accounting Policies [Table] The Company and Its Significant Accounting Policies [Table] Retained Earnings Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate, Type [Domain] Change in Accounting Estimate, Type [Domain] The Company and Its Significant Accounting Policies [Line Items] The Company and Its Significant Accounting Policies [Line Items] [Line Items] for The Company and Its Significant Accounting Policies [Table] Revenue for product and services over time as a percent of total revenue Revenue for product and services over time as a percent of total revenue Revenue for product and services over time as a percent of total revenue Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Amount Cumulative effect of adoption as a percentage of revenue Cumulative effect of adoption as a percentage of revenue Cumulative effect of adoption as a percentage of revenue Effective Income Tax Rate Reconciliation, Intra-Entity Transfer, Amount Effective Income Tax Rate Reconciliation, Intra-Entity Transfer, Amount Effective Income Tax Rate Reconciliation, Intra-Entity Transfer, Amount Maturity Period For Available For Sale Investments Classification As Current Investments Minimum [greater than] Maturity Period For Available For Sale Investments Classification As Current Investments Minimum Maturity period for available-for-sale investments, classification as current investments, Minimum. Maturity Period For Available For Sale Investments Classification As Current Investments Maximum [less than] Maturity Period For Available For Sale Maturity Period For Available For Sale Investments Classification As Current Investments Maximum Maturity period for available-for-sale investments, classification as current investments, Maximum. Maturity Period for Available for Sale Investments Classification As Long Term Investments Minimum [exceeding] Maturity Period for Available for Sale Investments Classification As Long Term Investments Minimum Maturity period for available for sale investments classification as long term investments minimum. Value Added Tax Receivable Value Added Tax Receivable Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Useful Life Goodwill, Impairment Loss Goodwill, Impairment Loss Completed and transferred acquired in-process research and development during period Completed and transferred acquired in-process research and development during period Completed and transferred acquired in-process research and development during period - the amount of acquired IPRD for which development was completed during the period and -was transferred from indefinite-lived intangibles to finite-lived intangibles during the period. Accrued compensation and benefits Accrued Salaries Interest Payable Interest Payable Rebates As Percentage Of Sales [Less Than] Rebates As Percentage Of Sales1 Rebates As Percentage Of Sales1 Total remaining unearned compensation cost related to nonvested restricted stock units and options Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average remaining service period of unearned compensation costs related to nonvested restricted stock units and options Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Components of inventories Inventory, Net [Abstract] Raw materials Inventory, Raw Materials, Net of Reserves Work in process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Total inventories Facility Manufacturing Facility [Member] Equipment Equipment [Member] Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Commitments and Contingent Liabilities (Textual) Commitments and Contingent Liabilities (Textual) [Abstract] Commitments and contingent liabilities. Operating Leases, remaining terms Lessee, Operating Lease, Term of Contract Number of renewal periods for operating leases Number Of Renewal Periods Number of renewal periods. Operating lease renewal period Lessee, Operating Lease, Renewal Term Total future minimum lease payments Rent expense under operating leases Operating Leases, Rent Expense, Net Capital Lease Term Lessee, Finance Lease, Term of Contract Quarterly Financial Summary (Unaudited) Quarterly Financial Information [Table Text Block] Minimum future lease payments Schedule of Future Minimum Lease Payments for Capital Leases and Operating Leases [Table Text Block] Schedule of future minimum lease payments for capital leases and operating leases. Income before income taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Components of the income tax (provision) benefit Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reconciliation of the (provision for) or benefit from income taxes to income tax(expense) or benefit computed by applying the statutory federal income tax rate to pre-tax income. Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Significant components of net deferred income taxes Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of gross unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [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] Indefinite-lived Intangible Assets [Line Items] Indefinite-lived Intangible Assets [Line Items] Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block] Schedule of finite-lived and indefinite-lived intangible assets [Table Text Block] Schedule of finite-lived and indefinite-lived intangible assets [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Reconciliation of "All other" category: Segment Reporting Information Other [Abstract] Segment reporting information other. Stock-based compensation expense Amortization of intangible assets Acquisition and integration related costs Business Combination, Acquisition And Integration related costs Business Combination, Acquisition And Integration related costs Restructuring and disposal costs Restructuring and disposal costs Restructuring and disposal costs Start-up costs Asset impairment and accelerated depreciation Other expenses (including (gain) loss on assets and other miscellaneous corporate overhead) Other Unallocated Income Expense Other unallocated income expense. ReconciliationOfProvisionOfIncomeTaxes [Table] ReconciliationOfProvisionOfIncomeTaxes [Table] ReconciliationOfProvisionOfIncomeTaxes [Table] ReconciliationOfProvisionOfIncomeTaxes [Line Items] ReconciliationOfProvisionOfIncomeTaxes [Line Items] [Line Items] for ReconciliationOfProvisionOfIncomeTaxes [Table] Income tax expense at statutory federal rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Income tax expense at statutory federal rate, Percentage Decrease (increase) resulting from: Decrease Increase Resulting [Abstract] Decrease (increase) resulting from. State benefit (provision), net of federal (provision) benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount State benefit (provision), net of federal (provision) benefit, Percentage Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Research and development credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Research and development credits, Percentage Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Effect of changes in income tax rate applied to net deferred tax assets Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Effect of changes in income tax rate applied to net deferred tax assets, Percentage Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Foreign tax rate difference Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Foreign tax rate difference, Percentage Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Foreign permanent differences, amount Effective income tax rate reconciliation, foreign permanent differences, amount Effective income tax rate reconciliation, foreign permanent differences, amount Foreign permanent differences, percent Effective income tax rate reconciliation, foreign permanent differences, percent Effective income tax rate reconciliation, foreign permanent differences, percent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in valuation allowance, Percentage Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Stock-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount Share-based compensation, Percentage Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent Tax reserve adjustments Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Tax reserve adjustments, Percentage Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Deemed dividend Income Tax Reconciliation Deemed Dividend Income tax reconciliation deemed dividend. Deemed Dividend, Percentage Effective Income Tax Rate Reconciliation Deemed Dividend Effective income tax rate reconciliation deemed dividend. U.S. Tax Toll Charge Effective Income Tax Rate Reconciliation, U.S. Tax Toll Charge Effective Income Tax Rate Reconciliation, U.S. Tax Toll Charge U.S. Tax Toll Charge, Percent Effective Income Tax Rate Reconciliation, U.S. Tax Toll Charge, Percent Effective Income Tax Rate Reconciliation, U.S. Tax Toll Charge, Percent Intra-entity transfer Intra-entity transfer, percent Effective Income Tax Rate Reconciliation, Intra-Entity Transfers, Percent Effective Income Tax Rate Reconciliation, Intra-Entity Transfers, Percent Other income tax benefit (expense) Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other income tax benefit (expense), Percentage Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Total, Percentage Effective Income Tax Rate Reconciliation, Percent Sales Revenue, Net Sales Revenue, Net [Member] Customer Concentration Risk Customer Concentration Risk [Member] Apple Apple [Member] Apple [Member] Revenue from significant customers Entity Wide Revenue Major Customer [Abstract] Entity wide revenue major customer. Subsequent Event [Table] Subsequent Event [Table] Active-Semi Active-Semi [Member] Active-Semi [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Announced Scenario, Plan [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Expected purchase price Business Combination, Consideration Transferred Document and Entity Information [Abstract] Document and entity information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Amendment Flag Amendment Flag Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Small Business Entity Small Business Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding QUARTERLY FINANCIAL SUMMARY (UNAUDITED) Quarterly Financial Information [Text Block] INVENTORIES Inventory Disclosure [Text Block] Summary of activity of the Company's director and employee stock option plans Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding beginning balance, Shares Outstanding beginning balance, Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Granted, Weighted-Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised, Weighted-Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Canceled, Weighted-Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Forfeited, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited, Weighted-Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Outstanding ending balance, Shares Outstanding ending balance, Weighted-Average Exercise Price Outstanding ending balance, Weighted-Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding ending balance, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested and expected to vest, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and expected to vest, Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and expected to vest, Weighted-Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Vested and expected to vest, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Options exercisable, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Options exercisable, Weighted-Average Exercise Price Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Options exercisable, Weighted-Average Remaining Contractual Term Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Options exercisable, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Business Acquisition [Line Items] Share Price Share Price Business Combination, Consideration Transferred Business combination, Cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Reconciliation of the numerators and denominators in the computation of basic and diluted net income (loss) per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Summary of details of reportable segments Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Summary of reconciliation of All other category Segment Reporting Information Other [Table Text Block] Segment reporting information other. Sales to customers by geographic region Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] Long-lived assets by geographic region Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Revenue from significant customers Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Estimated Amortization Expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2024 Finite-Lived Intangible Assets, Amortization Expense, Year Five Land Land Building and leasehold improvements Buildings and Improvements, Gross Machinery and equipment Machinery and Equipment, Gross Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property And Equipment Net Excluding Construction In Progress Property And Equipment Net Excluding Construction In Progress Property and equipment net, excluding construction in progress. Construction in progress Construction in Progress, Gross Property and equipment, net Intangible Assets by Major Class [Axis] Intangible Assets, Major Class Name [Domain] Technology licenses Licensing Agreements [Member] Noncompete Agreements [Member] Noncompete Agreements [Member] Trade Names Trade Names [Member] Gross carrying amounts and amortization of intangibles Finite-Lived Intangible Assets, Gross [Abstract] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Gross Carrying Amount Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] November 2016 Program November 2016 Program [Member] November 2016 Program [Member] November 2015 Program November 2015 Program [Member] November 2015 Program [Member] May 2018 Program May 2018 Program [Member] May 2018 Program [Member] Collared Agreement [Member] Collared Agreement [Member] Collared Agreement [Member] Uncollared Agreement [Member] Uncollared Agreement [Member] Uncollared Agreement [Member] Shareholders' Equity (Textual) Shareholders Equity (Textual) [Abstract] Shareholders' equity. Share repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount rolled into new plan Stock Repurchase Program, Authorized Amount rolled into new plan Stock Repurchase Program, Authorized Amount rolled into new plan Stock Repurchased During Period, Shares Stock Repurchased During Period, Value Stock Repurchase Program, Remaining Authorized Repurchase Amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Common stock reserved for future issuance Accelerated Share Repurchases, Settlement (Payment) or Receipt Accelerated Share Repurchases, Settlement (Payment) or Receipt Accelerated Share Repurchases, Shares Received Accelerated Share Repurchases, Shares Received Accelerated Share Repurchases, Shares Received - Number of shares received under an accelerated share program. Accelerated Share Repurchases, percent Accelerated Share Repurchases, percent Accelerated Share Repurchases, percent Accelerated Share Repurchases, Initial Price Paid Per Share Accelerated Share Repurchases, Initial Price Paid Per Share Accelerated share repurchase, total shares received Accelerated share repurchase, total shares received Accelerated share repurchase, total shares received STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] performance period [Axis] performance period [Axis] performance period [Axis] performance period [Domain] performance period [Domain] [Domain] for performance period [Axis] Performance period 1 performance period 1 [Member] performance period 1 [Member] Performance period 2 performance period 2 [Member] performance period 2 [Member] Performance period 3 performance period 3 [Member] performance period 3 [Member] Performance-based restricted stock Performance-based restricted stock [Member] Performance-based restricted stock [Member] Performance and service-based restricted stock units performance and service-based restricted stock units [Member] performance and service-based restricted stock units [Member] Certain officers of the Company (Section 16 Officers) Certain Officers Of Company Section Sixteen Officers [Member] Certain officers of the company (section 16 officers). Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee stock purchase plan. 2006 Directors' Stock Option Plan Two Thousand Six Directors Stock Option Plan [Member] Two thousand six directors stock option plan. 1996 Stock Incentive Program - TriQuint 1996 Stock Incentive Program - TriQuint [Member] 1996 Stock Incentive Program - TriQuint [Member] 2008 Inducement Award Plan - TriQuint 2008 Inducement Award Plan - TriQuint [Member] 2008 Inducement Award Plan - TriQuint [Member] 2009 and 2012 Incentive Plans - TriQuint 2009 Incentive Plan - TriQuint [Member] 2009 Incentive Plan - TriQuint [Member] 2013 Incentive Plan - Qorvo 2013 Incentive Plan - TriQuint [Member] 2013 Incentive Plan - TriQuint [Member] 2015 Inducement Stock Plan - Qorvo 2015 Inducement Stock Plan - Qorvo [Member] 2015 Inducement Stock Plan - Qorvo [Member] 2012 Stock Incentive Plan - Qorvo Two Thousand Twelve Stock Incentive Plan [Member] Two Thousand Twelve Stock Incentive Plan [Member] [Member] 2003 Stock Incentive Plan - RF Micro Devices Two Thousand Three Stock Plan [Member] Two thousand three stock plan. Share-Based Compensation (Textual) Share-Based Compensation (Textual) [Abstract] Share Based Compensation. Number of shares available for grant or issuance Maximum number of shares of common stock to be issued under plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Maximum available options under the plan, description Maximum available options under the plan, description Maximum available options under the plan, description Shares granted Reserved additional shares of common stock Reserved additional shares of common stock Reserved additional shares of common stock Share-based Compensation Arrangement by Share-based Payment Award, Percent of Market Price Share Based Compensation Arrangement By Share Based Payment Award Percent Of Market Price Share-based compensation arrangement by share-based payment award, percent of market price. Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Period employees can acquire common stock Period Employees Can Acquire Common Stock Period employees can acquire common stock. Shares issued under plan Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Vesting percentage when earned Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Closing stock price Total intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Cash received from the exercise of stock options (excluding accrued unremitted employee funds) Proceeds from Stock Options Exercised Annual forfeiture rate Forfeiture Rate Forfeiture rate. Total remaining unearned compensation cost related to nonvested restricted stock unit Weighted-average remaining service period of unearned compensation costs related to nonvested restricted stock units Total fair value of vested restricted stock units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Fiscal Year 2019 Fiscal Year 2019 [Member] Fiscal Year 2019 [Member] Fiscal Year 2018 Fiscal Year 2018 [Member] Fiscal Year 2018 [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of sales Cost of Sales [Member] Other operating expense Other Operating Income (Expense) [Member] Other noncurrent liabilities Other Noncurrent Liabilities [Member] Accelerated depreciation Accelerated Depreciation [Member] Accelerated Depreciation [Member] Impairment of property and equipment Impairment of property and equipment [Member] Impairment of property and equipment [Member] Business combination Business combination [Member] Business combination [Member] Lease obligations Lease obligations [Member] Lease obligations [Member] One-time termination benefits One-time Termination Benefits [Member] Other restructuring Other Restructuring [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring and Related Cost, Incurred Cost Restructuring and Related Cost, Incurred Cost Asset Impairment Charges Restructuring obligations Restructuring Reserve Restructuring and Related Cost, Expected Cost Remaining Restructuring and Related Cost, Expected Cost Remaining Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Shares excluded from the computation of diluted shares outstanding Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount INVESTMENTS AND FAIR VALUE MEASUREMENTS Investments and Fair Value Measurements [Text Block] Investments and fair value measurements. RETIREMENT BENEFIT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block]