Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Federal Funds Rate [Member] Federal Funds Rate [Member] Federal Funds Rate [Member] Default rate [Member] Default rate [Member] Default rate [Member] Eurodollar [Member] Eurodollar [Member] Base Rate [Member] Base Rate [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] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Credit Agreement [Member] Credit Agreement [Member] Credit Agreement [Member] Senior Delayed Draw Term Loan [Member] Senior Delayed Draw Term Loan [Member] Senior Delayed Draw Term Loan [Member] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Standby Letters of Credit [Member] Standby Letters of Credit [Member] Swingline Loan [Member] Bridge Loan [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] 6.75% Senior Notes due 2023 [Member] 6.75% Senior Notes due 2023 [Member] 6.75% Senior Notes due 2023 [Member] 7.00% Senior Notes due 2025 [Member] 7.00% Senior Notes due 2025 [Member] 7.00% Senior Notes due 2025 [Member] Senior Notes [Member] Senior Notes [Member] Senior Notes and Senior Delayed Draw Term Loan [Member] Senior Notes and Senior Delayed Draw Term Loan [Member] Senior Notes and Senior Delayed Draw Term Loan [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 Stated Interest Rate Debt Instrument, Interest Rate, Stated Percentage 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 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 Document Period End Date Document Period End Date Interest Expense, Borrowings Interest Expense, Borrowings Interest Costs Capitalized Interest Costs Capitalized Long-term Debt, Fair Value Long-term Debt, Fair Value Interest Paid Interest Paid Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Proceeds from debt issuances Proceeds from (Repayments of) Debt 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 Long-term debt Long-term Debt Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Earnings Per Share [Abstract] Reconciliation of the numerators and denominators in the computation of basic and diluted net income per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Segment Reporting [Abstract] OPERATING SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Consolidating Financial Information [Abstract] Consolidating Financial Information [Abstract] CONSOLIDATING FINANCIAL INFORMATION Consolidating Financial Information [Text Block] Consolidating Financial Information [Text Block] Equity [Abstract] STOCK REPURCHASES Stockholders' Equity Note Disclosure [Text Block] Income Statement [Abstract] Revenue Revenue, Net Cost of goods sold Cost of Goods 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 9) Other Operating Income (Expense), Net Total operating expenses Operating Expenses Income from operations Operating Income (Loss) Interest expense (Note 6) Interest Expense Interest income Investment Income, Net Other expense Other Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense (Note 7) Income Tax Expense (Benefit) Net loss Net Income (Loss) Attributable to Parent Net loss per share (Note 3): Basic Earnings Per Share, Basic Diluted Earnings Per Share, Diluted Weighted average shares of common stock outstanding (Note 3): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted Statement [Table] Statement [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Guarantor Subsidiaries Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries Non-Guarantor Subsidiaries [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income from operations Operating Income (Loss) [Member] Income (loss) in subsidiaries Income (loss) in subsidiaries [Member] Income (loss) in subsidiaries [Member] Statement [Line Items] Statement [Line Items] Immaterial corrections Prior Period Reclassification Adjustment Investments and Fair Value Measurements [Abstract] Investments and fair value measurements. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Auction Rate Securities [Member] Auction Rate Securities [Member] Money Market Funds [Member] Money Market Funds [Member] Cash and cash equivalents Cash and Cash Equivalents [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Cash Equivalents, at Carrying Value Cash Equivalents, at Carrying Value Available-for-sale securities Available-for-sale Securities, Debt Securities Invested funds in deferred compensation plan Deferred Compensation Plan Assets Total assets measured at fair value Assets, Fair Value Disclosure, Recurring Deferred compensation plan obligation Deferred Compensation Liability, Current and Noncurrent Total liabilities measured at fair value Liabilities, Fair Value Disclosure, Recurring NET INCOME PER SHARE Earnings Per Share [Text Block] Statement of Comprehensive Income [Abstract] Net loss Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gain (loss) on marketable securities, net of tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of 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 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 income (loss) Other Comprehensive Income (Loss), Net of Tax Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent INVESTMENTS AND FAIR VALUE MEASUREMENTS Investments and Fair Value Measurements [Text Block] Investments and fair value measurements. Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net 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 Amortization and other non-cash items Amortization Excess tax benefit from exercises of stock options Excess Tax Benefit from Share-based Compensation, Operating Activities Deferred income taxes Deferred Income Tax Expense (Benefit) Foreign currency adjustments Foreign Currency Transaction Gain (Loss), Unrealized Loss on investments and other assets, net Gain (loss) on assets and other, net The gains (losses) included in earnings resulting from the sale or disposal of tangible or intangible assets. Stock-based compensation expense Share-based Compensation 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 and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Income tax (recoverable) / payable 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 a business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from maturities and sales of available-for-sale securities Proceeds from Sale and Maturity of Available-for-sale Securities Other investing activities 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] Issuance costs Payments of Debt Issuance Costs Repurchase of common stock, including transaction costs Payments for Repurchase of Common Stock Proceeds from the issuance of common stock Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Tax withholding paid on behalf of employees for restricted stock units Payments Related to Tax Withholding for Share-based Compensation Excess tax benefit from exercises of stock options Excess Tax Benefit from Share-based Compensation, Financing Activities Other financing activities 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 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 and restricted cash Cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at the end of the period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Capital expenditure adjustments included in accounts payable and accrued liabilities Change in Capital Expenditures Incurred but Not Paid Change in Capital Expenditures Incurred but Not Paid Inventory Disclosure [Abstract] Components of inventories Inventory, Net, Items Net of Reserve Alternative [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 Inventory, Net Income Tax Disclosure [Abstract] U.S Tax Cuts and Jobs Act New Accounting Pronouncements or Change in Accounting Principle [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast [Member] Scenario, Forecast [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] 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] U.S. Tax Cuts and Jobs Act [Line Items] U.S Tax Cuts and Jobs Act [Line Items] U.S Tax Cuts and Jobs Act [Line Items] Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Income tax expense Estimated repatriation tax expense Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Estimated deferred tax benefit New Accounting Pronouncements or Change in Accounting Principle [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Qorvo International Pte. Ltd. [Member] Qorvo International Pte. Ltd. [Member] Qorvo International Pte. Ltd. [Member] Net United States Domestic Tax Authority [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-09 Accounting Standards Update 2016-09 [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Deferred tax assets Deferred Taxes [Member] Deferred Taxes [Member] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Pronouncement, Early Adoption [Axis] New Accounting Principles, Early Adoption [Domain] New Accounting Principles, Early Adoption [Domain] Effect of early adoption New Accounting Pronouncement, Early Adoption, Effect [Member] New Accounting Pronouncements New Accounting Pronouncements or Change in Accounting Principle [Line Items] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Increase (decrease) in deferred tax liability Increase (decrease) in deferred tax liability Increase (decrease) in deferred tax liability Quantifiction of new accounting pronouncement New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Effective tax rate Effective Income Tax Rate Reconciliation, Percent Gross unrecognized tax benefits Unrecognized Tax Benefits Basis of Presentation and Significant Accounting Policies [Abstract] Basis of Presentation and Significant Accounting Policies [Abstract] Restricted Cash Restricted Cash Condensed Balance Sheet Condensed Balance Sheet [Table Text Block] Condensed Statement of Comprehensive Income Condensed Statement of Comprehensive Income [Table Text Block] Condensed Cash Flow Statement Condensed Cash Flow Statement [Table Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Stock Repurchase Program [Axis] Share Repurchase Program [Axis] Stock Repurchase Program [Domain] Share Repurchase Program [Domain] November 2016 Program [Member] November 2016 Program [Member] November 2016 Program [Member] Class of Stock [Line Items] Class of Stock [Line Items] Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Stock Repurchased During Period, Shares Stock Repurchased During Period, Shares Stock Repurchased During Period, Value Stock Repurchased During Period, Value Stock Repurchase Program, Remaining Authorized Repurchase Amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Debt Securities [Member] Debt Securities [Member] Schedule of Expected Maturities of Cash Equivalents and Available-for-Sale Securities[Line Items] Schedule of Available-for-sale Securities [Line Items] Cost of investments in cash equivalents and debt securities due in less than one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Cost of investments in cash equivalents and debt securities due after ten years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Cost Available-for-sale Debt Securities, Amortized Cost Basis Estimated fair value of investments in cash equivalents and debt securities due in less than one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Estimated fair value of investments in cash equivalents and debt securities due after ten years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Estimated fair value New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Income tax benefit (expense) Income tax benefit (expense) [Member] Income tax benefit (expense) [Member] Retained earnings Retained Earnings [Member] Accounting Standards Update 2016-18 Accounting Standards Update 2016-18 [Member] Accounting Standards Update 2016-16 Accounting Standards Update 2016-16 [Member] 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 Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Statement of Financial Position [Abstract] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Eliminations and Reclassifications Consolidation, Eliminations [Member] Parent Company Parent Company [Member] Accounts receivable, less allowance Accounts Receivable, Net, Current Intercompany accounts and notes receivable Intercompany receivables Intercompany receivables Inventories Prepaid expenses Prepaid Expense, Current Other receivables Other Receivables Other current assets Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net of accumulated amortization of $1,663,549 at December 30, 2017 and $1,257,665 at April 1, 2017 (Note 5) Intangible Assets, Net (Excluding Goodwill) Long-term investments Long-term Investments Long-term intercompany accounts and notes receivable Intercompany Notes Receivable, Long-Term Intercompany Notes Receivable, Long-Term Investment in subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Deferred tax assets Deferred Tax Assets, Net, Noncurrent Other non-current assets Other Assets, Noncurrent Total assets Assets Accounts payable Accounts Payable, Current Intercompany accounts and notes payable Intercompany accounts and notes payable Intercompany accounts and notes payable Accrued liabilities Accrued Liabilities, Current Other current liabilities Other Liabilities, Current Total current liabilities Liabilities, Current Deferred tax liabilities Deferred Tax Liabilities, Net, Noncurrent Intercompany accounts and notes payable, long-term Intercompany accounts and notes payable, long-term Intercompany accounts and notes payable, long-term Other long-term liabilities (Note 7) Other Liabilities, Noncurrent Total liabilities Liabilities Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity INVENTORIES Inventory Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] All other Corporate, Non-Segment [Member] 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 Amortization of Intangible Assets Acquisition and integration related costs Business Combination, Acquisition And Integration related costs Business Combination, Acquisition And Integration related costs Restructuring charges Restructuring and disposal costs Restructuring and disposal costs Start-up costs Start-up costs Start-up costs Other (expense) income (including (loss) gain on assets and other miscellaneous corporate overhead) Other Unallocated Income Expense Other unallocated income expense. Loss from operations for “All other” Antidilutive shares excluded from the computation of diluted shares outstanding Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Net Income (Loss) Per Share (Textual) Net Loss Income Per Share (Textual) [Abstract] Net loss income per share. Initial aggregate principal amount of Notes issued Goodwill and Intangible Assets Disclosure [Abstract] INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] INCOME TAXES Income Tax Disclosure [Text Block] Components of inventories Schedule of Inventory, Current [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Income Tax Policy Income Tax, Policy [Policy Text Block] Fair Value Measurements Policy Fair Value Measurement, Policy [Policy Text Block] Operating Segment Policy Segment Reporting, Policy [Policy Text Block] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Cavendish [Member] Cavendish [Member] Cavendish [Member] Schedule of Cash equivalents and available-for-sale securities Equity Method Investments Equity Method Investments Investments and Fair Value Measurements (Textual) Investments And Fair Value Measurements (Textual) [Abstract] -- None. No documentation exists for this element. -- Money Market Funds [Member] Cash equivalents and available-for-sale securities Available-for-sale Securities [Abstract] Cost basis Available-for-sale Securities, Amortized Cost Basis Gross unrealized losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Estimated fair value Available-for-sale Securities Restructuring [Abstract] Restructuring [Abstract] Restructuring Restructuring and Related Activities Disclosure [Text Block] Accounting Changes and Error Corrections [Abstract] CHANGE IN ESTIMATE Accounting Changes and Error Corrections [Text Block] Cost of Goods Sold Interest expense Other expense (income) Income in subsidiaries Income (Loss) from Subsidiaries, Net of Tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] 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] Developed Technology Developed Technology Rights [Member] Customer Relationships Customer Relationships [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Intangible assets, net Amortization expense Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Restructuring Other Restructuring [Member] Loss on Asset Disposal Loss on Asset Disposal [Member] Loss on Asset Disposal [Member] Other Operating Expense Other Operating Income (Expense) [Member] Restructuring [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring and Related Cost, Expected Cost Remaining Restructuring and Related Cost, Expected Cost Remaining Restructuring Reserve Restructuring Reserve Restructuring and Related Cost, Incurred Cost Restructuring and Related Cost, Incurred Cost ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents (Note 8) Accounts receivable, less allowance of $231 and $58 as of December 30, 2017 and April 1, 2017, respectively Inventories (Note 4) Property and equipment, net of accumulated depreciation of $875,942 at December 30, 2017 and $981,328 at April 1, 2017 Goodwill Long-term investments (Note 8) LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Long-term debt (Note 6) Deferred tax liabilities (Note 7) 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; 405,000,000 shares authorized; 127,137,000 and 126,464,000 shares issued and outstanding at September 30, 2017 and April 1, 2017, 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) Numerator: Earnings Per Share Reconciliation [Abstract] Numerator for basic and diluted net loss per share — net loss available to common stockholders Denominator: Denominator [Abstract] Denominator. Denominator for basic net loss 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 per share — adjusted weighted average shares and assumed conversions Basic net income per share (in dollars per share) Diluted net income per share (in dollars per share) Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Operating Segments Operating Segments [Member] Statement, Business Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] MP Mobile Products [Member] Mobile Products [Member] IDP 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] Net revenue Income from operations: Segment Reporting Information, Operating Income (Loss) [Abstract] Income (loss) from operations Income before income taxes Cash equivalents and available-for-sale securities Available-for-sale Securities [Table Text Block] Expected distribution of cash equivalents and available-for-sale debt securities Investments Classified by Contractual Maturity Date [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] DEBT Debt Disclosure [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. RECENT ACCOUNTING PRONOUNCEMENTS New Accounting Pronouncements and Changes in Accounting Principles [Text Block] BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] 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] Change in Accounting Method Accounted for as Change in Estimate [Member] Change in Accounting Method Accounted for as Change in Estimate [Member] Change in estimate Change in Accounting Estimate Impact, Depreciation Expense Change in Accounting Estimate Impact, Depreciation Expense Change in Accounting Estimate Impact, Depreciation Expense Change in Accounting Estimate Impact, Income from Operations New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results Change in Accounting Estimate Impact, Inventory Change in Accounting Estimate Impact, Inventory Change Change in Accounting Estimate Impact, Inventory Change Change in Accounting Estimate Impact, Net Income New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income Change in Accounting Estimate Impact, Diluted Earnings Per Share New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share Allowance for accounts receivable Allowance for Doubtful Accounts Receivable, Current Property and equipment, accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization 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 Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Payments to Acquire Businesses, Net of Cash Acquired Net transactions with related parties, investing Net transactions with related parties, investing Net transactions with related parties, investing Net Cash Provided by (Used in) Investing Activities Payments Related to Tax Withholding for Share-based Compensation Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Net transactions with related parties Net transactions with related parties Net transactions with related parties Net Cash Provided by (Used in) Financing Activities Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash