Income Statement [Abstract] Net sales Revenue, Net Cost of sales Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Research and development Research and Development Expense Merger related expenses Business Combination, Acquisition Related Costs Total operating expenses Operating Expenses Income (loss) from operations Operating Income (Loss) Interest income (expense), net Investment Income, Net Impairment of investment Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net Other income (expense), net Other Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense (benefit) Income Tax Expense (Benefit) Net income (loss) Net Income (Loss) Attributable to Parent Basic income (loss) per share (in Dollars per Share) Earnings Per Share, Basic Diluted income (loss) per share (in Dollars per Share) Earnings Per Share, Diluted Shares used in computing basic income (loss) per share (in shares) Weighted Average Number of Shares Outstanding, Basic Shares used in computing diluted income (loss) per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Investments [Abstract] Investments Investment [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Earnings Per Share [Abstract] Income Per Share Earnings Per Share [Text Block] Statement of Comprehensive Income [Abstract] Net income (loss) Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Total other comprehensive income 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(Decrease) in Other Operating Assets Current and non-current liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash Flow From Investing Activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Purchase of short-term investments Payments for (Proceeds from) Held-to-maturity Securities, Short-term Maturities of short-term investments Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Purchase of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Intangible asset purchases Payments to Acquire Intangible Assets Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash Flows From Financing Activities Net Cash Provided by (Used in) Financing Activities, Continuing 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International [Member] International [Member] Schedule of Revenues From External Customers By Geographic Area [Line Items] Schedule of Revenues From External Customers By Geographic Area [Line Items] Schedule of Revenues From External Customers By Geographic Area [Line Items] Document and Entity Information [Abstract] Document and entity information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key 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 Trading Symbol Trading Symbol Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] 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] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] State and Local Jurisdiction [Member] State and Local Jurisdiction [Member] Domestic Tax Authority [Member] Domestic Tax Authority [Member] Foreign Tax Authority [Member] Foreign Tax Authority [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Tax credit carryforward amount Tax Credit Carryforward, Amount Operating loss carryforwards Operating Loss Carryforwards Operating loss carryforwards valuation allowance Operating Loss Carryforwards, Valuation Allowance Liability for uncertain tax benefits Liability for Uncertain Tax Positions, Noncurrent Non-qualified deferred compensation plan liability Deferred Compensation Liability, Classified, Noncurrent Other liabilities Other Liabilities, Noncurrent Total other long-term liabilities Liabilities, Noncurrent MR Technology [Member] Magnetic Resonance Technology [Member] Magnetic Resonance Technology [Member] Finite-Lived intangible assets Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Finite-Lived Intangible Assets, Net Purchased intangible assets Finite-lived Intangible Assets Acquired Property, Plant and Equipment [Abstract] Schedule of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Stock-Based Incentive Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Income before income taxes: Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Provision for current income tax expense: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Current income tax expense Current Income Tax Expense (Benefit) Provision for deferred income tax expense: Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred income tax expense Total provision for income tax expense Long-Term Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block] Stockholders' Equity Note [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [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] Award Type [Axis] Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Equity Award [Domain] Service-based stock option awards [Member] Employee Stock Option [Member] Service-based restricted stock and restricted stock unit awards [Member] Service Based Restricted Stock And Restricted Stock Unit Awards [Member] Service-based restricted stock and restricted stock unit awards [Member] Performance-based restricted stock and restricted stock unit awards [Member] Performance Based Restricted Share And Restricted Share Unit [Member] Performance Based Restricted Share And Restricted Share Unit [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Total stock-based compensation expense Allocated Share-based Compensation Expense Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Accounting Policies [Abstract] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Nature of Operations Business Description and Basis of Presentation [Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Consolidation Consolidation, Policy [Policy Text Block] Segments Segment Reporting, Policy [Policy Text Block] Income Tax Accounting Income Tax, Policy [Policy Text Block] Fiscal Year-End Fiscal Period, Policy [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Schedule of Components of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Deferred Tax Assets And Liabilities Current and Non-Current Deferred Tax Assets And Liabilities Classification Tabular disclosure of current and non-current deferred tax assets and liabilities. Business Combinations [Abstract] Subsequent Event - The Merger with Sorin Subsequent Events [Text Block] Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Inventory Disclosure [Abstract] Inventories Schedule of Inventory, Current [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets Assets, Current [Abstract] Cash and cash equivalents Short-term investments Held-to-maturity Securities, Current Accounts receivable, net Accounts Receivable, Net, Current Inventories Inventory, Net Deferred tax assets current, net Deferred Tax Assets, Net, Current Other current assets Other Assets, Current Total current assets Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net Intangible assets, net Investments in equity securities Cost Method Investments, Original Cost Deferred tax assets non-current, net Deferred Tax Assets, Net, Noncurrent Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Total current liabilities Liabilities, Current Long-term liabilities Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.01 par value per share; 2,500,000 shares authorized; no shares issued and outstanding Preferred Stock, Value, Issued Common stock, $.01 par value per share; 50,000,000 shares authorized; 32,140,614 shares issued and 25,973,177 shares outstanding at October 18, 2015 and 32,054,236 shares issued and 25,996,102 shares outstanding at April 24, 2015 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Treasury stock, 6,167,437 and 6,058,134 common shares at October 18, 2015 and April 24, 2015, respectively, at cost Treasury Stock, Value Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Receivables [Abstract] Accounts Receivable and Allowance for Bad Debt Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Intangible Assets Intangible Assets Disclosure [Text Block] Fiscal year 2016 (remaining 28 weeks) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Fiscal year 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Two Fiscal year 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Three Fiscal year 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Four Fiscal year 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Five Fiscal year 2021 (53 week period) Finite-Lived Intangible Assets, Amortization Expense, Year Six Finite-Lived Intangible Assets, Amortization Expense, Year Six Thereafter Finite-Lived Intangible Assets, Amortization Expense, After Year Six Finite-Lived Intangible Assets, Amortization Expense, After Year Six Allocation of Share Based Compensation Costs by Expense Category Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Allocation of Share-Based Compensation Costs by Type of Arrangement Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Accrued Liabilities [Abstract] Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Mergers [Member] Mergers [Member] Mergers [Member] Sorin Merger [Member] Sorin Merger [Member] Sorin Merger [Member] Cyberonics Merger [Member] Cyberonics Merger [Member] Cyberonics Merger [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] LivaNova PLC [Member] LivaNova PLC [Member] LivaNova PLC [Member] Sorin S.p.A. [Member] Sorin S.p.A. [Member] Sorin S.p.A. [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Ordinary shares issued Stock Issued During Period, Shares, New Issues Merger conversion ratio (in shares) Business Combinations, Shares of Counterparty To Be Received, Conversion Ratio Business Combinations, Shares of Counterparty To Be Received, Conversion Ratio Share price (in dollars per share) Share Price Percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired Schedule of Short-Term Investments Held-to-maturity Securities [Table Text Block] Schedule of Long-Term Investments Schedule of Cost Method Investments [Table Text Block] Inventories Inventory Disclosure [Text Block] Deferred tax assets (liabilities): Deferred Tax Assets, Tax Deferred Expense [Abstract] Foreign net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Foreign State net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Accruals and reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Licensing income and expense Deferred Tax Assets Licensing Income And Expense Amount before allocation of valuation allowances of deferred tax asset attributable to licensing income and expense. Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Other Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Deferred tax valuation allowance Deferred Tax Assets, Valuation Allowance Debt Security [Axis] Debt Security [Axis] Major Types of Debt Securities [Domain] Major Types of Debt Securities [Domain] Certificates of Deposits [Member] Certificates of Deposit [Member] Commercial Paper [Member] Commercial Paper, Not Included with Cash and Cash Equivalents [Member] Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Short-term investments Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Cerbomed GMBH [Member] Cerbomed Gmbh [Member] Cerbomed GMBH [Member] ImThera Medical, Inc. [Member] ImThera Medical, Inc. 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related to cashed-out options Adjustment to Additional Paid in Capital, Share-based Compensation, Reclassification to Current Liability Adjustment to Additional Paid in Capital, Share-based Compensation, Reclassification to Current Liability Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Foreign currency translation income (loss) Balance Balance (shares) Schedule Of Long-Lived Assets By Geographic Area [Table] Schedule Of Long-Lived Assets By Geographic Area [Table] Schedule Of Long-Lived Assets By Geographic Area [Table] Schedule Of Long-Lived Assets By Geographic Area [Line Items] Schedule Of Long-Lived Assets By Geographic Area [Line Items] Schedule Of Long-Lived Assets By Geographic Area [Line Items] Property, plant and equipment, net Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Land [Member] Land [Member] Building and building improvements [Member] Building and Building Improvements [Member] Equipment, software furniture and fixtures [Member] Equipment Software Furniture And Fixtures [Member] Equipment, software furniture and fixtures [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Capital investment in process [Member] Construction in Progress [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, plant and equipment, gross Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net, total Lives in years Property, Plant and Equipment, Useful Life Revenue from External Customers by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Long-lived Assets by Geographic Areas Long-lived Assets by Geographic Areas [Table Text Block] Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] Employee Retirement Savings Plan and Deferred Compensation Plan Compensation and Employee Benefit Plans, Other than Share-based Compensation [Text Block] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] 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 Inventories Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Income Statement Location [Axis] Income Statement Location [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Income Statement Location [Domain] Cost of goods sold [Member] Cost of Sales [Member] Selling, general and administrative [Member] Selling, General and Administrative Expenses [Member] Research and development [Member] Research and Development Expense [Member] Employee Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Income tax benefit, related to awards, recognized in the consolidated statements of income Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Total expense, net of income tax benefit Allocated Share-based Compensation Expense, Net of Tax Preferred Stock, Par or Stated Value Per Share Preferred Stock, Par or Stated Value Per Share 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 or Stated Value Per Share Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Treasury Stock, Shares Treasury Stock, Shares Fiscal period duration Fiscal Period Duration Number of operating segments Number of Operating Segments Schedule of Cost-method Investments [Table] Schedule of Cost-method Investments [Table] ImThera Medical Inc [Member] Imthera Medical Inc [Member] ImThera Medical Inc Member Schedule of Cost-method Investments [Line Items] Schedule of Cost-method Investments [Line Items] Number of privately-held companies invested in Number Of Cost Method Investments Number Of Cost Method Investments Carrying amount - long-term investments Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Domain] Defined Contribution Plan Type [Domain] Foreign Pension Plan [Member] Foreign Pension Plan [Member] Belgium [Member] BELGIUM Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Percent of employees' gross pay Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Employer matching contribution (percent) Defined Contribution Plan, Employer Matching Contribution, Percent of Match Defined contribution plan vesting period Defined Contribution Plan, Vesting Period Defined Contribution Plan, Vesting Period Pension expense Defined Contribution Plan, Cost Recognized Base salary compensation eligible for deferral (percent) Deferred Compensation Plan, Base Salary Compensation Eligible For Deferral, Percent Deferred Compensation Plan, Base Salary Compensation Eligible For Deferral, Percent Bonus or performance-based compensation eligible for deferral (percent) Deferred Compensation Plan, Bonus Or Performance-Based Compensation Eligible For Deferral, Percent Deferred Compensation Plan, Bonus Or Performance-Based Compensation Eligible For Deferral, Percent Employee contributions matched (percent) Deferred Compensation Plan, Employee Contributions Matched, Percent Deferred Compensation Plan, Employee Contributions Matched, Percent Maximum matched eligible earnings (percent) Deferred Compensation Plan, Maximum Matched Eligible Earnings Deferred Compensation Plan, Maximum Matched Eligible Earnings Vesting period Deferred Compensation Plan, Vesting Period Deferred Compensation Plan, Vesting Period Company match expense Deferred Compensation Arrangement with Individual, Compensation Expense Matching pension expense Defined Contribution Plan, Employer Discretionary Contribution Amount Accounts receivable Accounts Receivable, Gross, Current Allowance for bad debt Allowance for Doubtful Accounts Receivable, Current Accounts receivable, net Employee related liabilities Employee-related Liabilities, Current Taxes payable Accrual for current income taxes, property tax and other current taxes Accrual for current income taxes, property tax and other current taxes Merger Related Expense Accruals Merger Related Expense Accruals Merger Related Expense Accruals Clinical study costs Accrued Clinical Costs Accrued Clinical Costs Other accrued liabilities Other Accrued Liabilities, Current Accrued Liabilities, current, total