Statements of Income [Abstract] Balance Sheets [Abstract] Statements of Cash Flows [Abstract] Document and Entity Information [Abstract] Document And Entity Information Document and Entity Information Net revenues Sales Revenue, Goods, Net, Total Sales Revenue, Goods, Net Cost of goods sold Cost of Goods Sold Cost of goods sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research, development and engineering Research and Development Expense, Total Research and Development Expense Selling, general and administrative Selling, general and administrative Selling, General and Administrative Expense Total operating expenses Operating Expenses Total operating expenses Operating income Operating Income (Loss), Total Operating Income (Loss) Interest expense Interest Expense, Total Interest Expense Interest expense Interest expense Income before provision for income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest, Total Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income Net Income (Loss) Attributable to Parent Net income Basic income per common share Earnings Per Share ("EPS") [Abstract] Net income Earnings Per Share, Basic, Total Earnings Per Share, Basic Income per common share assuming dilution Earnings Per Share, Diluted [Abstract] Net income Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Weighted average shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Basic income per common share Earnings Per Share, Basic [Abstract] ASSETS Assets [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Stockholders' Equity [Abstract] Total other assets Total other assets Total other assets. Land, building and building improvements Land, building and building improvements Land, building and building improvements. Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents at Beginning of Year Cash and Cash Equivalents at End of Period Cash and Cash Equivalents, at Carrying Value Inventories, net Inventory, Net, Total Inventory, Net Deferred tax asset, net Deferred Tax Assets, Net, Current, Total Deferred Tax Assets, Net, Current, Beginning Balance Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current Prepaid expenses and other current assets Other Assets, Current Total current assets Assets, Current, Total Assets, Current Property, plant and equipment: Property, Plant and Equipment, Net [Abstract] Plant equipment and machinery Machinery and Equipment, Gross, Total Machinery and Equipment, Gross Office equipment and information technology Property, Plant and Equipment, Other Haemonetics equipment Total property, plant and equipment Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: accumulated depreciation Net property, plant and equipment Property, Plant and Equipment, Net, Total Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net Goodwill Goodwill, Beginning Balance Goodwill, Ending Balance Goodwill Deferred tax asset, long term Deferred Tax Assets, Net, Noncurrent, Total Deferred Tax Assets, Net, Noncurrent Other long-term assets Other Assets, Noncurrent Total assets Assets Current liabilities: Liabilities, Current [Abstract] Notes payable and current maturities of long-term debt Long-term Debt, Current Maturities, Total Long-term Debt, Current Maturities Accounts payable Accounts Payable, Current, Total Accounts Payable, Current Accrued payroll and related costs Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Accrued income taxes Accrued Income Taxes, Current Deferred tax liability Deferred Tax Liabilities, Current Other liabilities Other Liabilities, Current Total current liabilities Liabilities, Current, Total Liabilities, Current Long-term debt, net of current maturities Long-term Debt, Excluding Current Maturities, Total Long-term Debt, Excluding Current Maturities Long-term deferred tax liability Deferred Tax Liabilities, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent, Total Other Liabilities, Noncurrent Commitments and contingencies (Note 12) Commitments and Contingencies Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.01 par value; Authorized - 150,000,000 shares; Issued and outstanding - 24,746,788 shares at October 2, 2010 and 25,440,856 shares at April 3, 2010 Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Beginning Balance Ending Balance Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Stockholders' Equity Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Non cash items: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] (Gain)/Loss on sales of property, plant and equipment Gain (Loss) on Sale of Property Plant Equipment, Total Gain (Loss) on Sale of Property Plant Equipment Unrealized loss/(gain) from hedging activities Unrealized Gain (Loss) on Derivatives (Reversal)/accretion of interest expense on contingent consideration Accretion Expense Change in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Decrease in accounts receivable, net Increase (Decrease) in Accounts Receivable Decrease in other assets and other long-term liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Tax benefit of exercise of stock options Tax Benefit from Stock Options Exercised Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Total Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures on property, plant and equipment Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Capital expenditures on property, plant and equipment Proceeds from sale of property, plant and equipment Proceeds from Sale of Other Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities, Total Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net (decrease)/increase in short-term loans Proceeds from Lines of Credit, Total Proceeds from Lines of Credit Employee stock purchase plan Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP Exercise of stock options Proceeds from Stock Options Exercised Excess tax benefit on exercise of stock options Excess Tax Benefit from Share-based Compensation, Financing Activities Share repurchase Payments for Repurchase of Common Stock Share repurchase Net cash (used in)/provided by financing activities Net Cash Provided by (Used in) Financing Activities, Total Net Cash Provided by (Used in) Financing Activities Effect of exchange rates on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net (Decrease)/Increase in Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease), Total Cash and Cash Equivalents, Period Increase (Decrease) Income taxes paid Income Taxes Paid, Net Interest paid Interest Paid, Net Supplemental Disclosures of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Common Stock Additional Paid-in Capital Retained Earnings Accumulated Other Comprehensive Income/(Loss) Comprehensive Income Beginning Balance, Shares Ending Balance, Shares Shares, Issued Employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Employee stock purchase plan, Shares Stock Issued During Period, Shares, Employee Stock Purchase Plans Shares repurchased Stock Repurchased During Period, Value Shares repurchased, Shares Stock Repurchased During Period, Shares Stock compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Comprehensive income Comprehensive Income, Net of Tax, Attributable to Parent Foreign currency translation adjustment Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Unrealized loss on hedges, net of tax Other Comprehensive Income, Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Reclassification of hedge gain to earnings, net of tax Other Comprehensive Income, Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Reclassification of hedge gain to earnings, net of tax Amortization, Other intangibles Finite-Lived Intangible Assets, Accumulated Amortization Common stock, Par value Common Stock, Par or Stated Value Per Share Common stock, Authorized Common Stock, Shares Authorized Common stock, Issued Common Stock, Shares, Issued, Total Common Stock, Shares, Issued Common stock, Outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding Inventories [Abstract] INVENTORIES Inventory Disclosure [Text Block] Income Taxes [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] EARNINGS PER SHARE ("EPS") Earnings Per Share [Text Block] Segment Information [Abstract] Segment Information. SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] RECENT ACCOUNTING PRONOUNCEMENTS Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Recent Accounting Pronouncements [Abstract] Basis of Presentation [Abstract] BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Commitments and Contingencies [Abstract] Commitments And Contingencies. COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMPREHENSIVE INCOME Comprehensive Income Note [Text Block] Comprehensive Income [Abstract] Derivatives and Fair Value Measurements [Abstract] Derivatives and Fair Value Measurements. DERIVATIVES AND FAIR VALUE MEASUREMENTS Derivatives And Fair Value Measurements Text Block Derivatives and Fair Value Measurements. Defined Benefit Pension Plans [Abstract] DEFINED BENEFIT PENSION PLANS Schedule of Defined Benefit Plans Disclosures [Text Block] Goodwill, Other Intangible Assets, and Acquisitions [Abstract] Goodwill, Other Intangible Assets, And Acquisitions. GOODWILL, OTHER INTANGIBLE ASSETS, AND ACQUISITIONS Goodwill Other Intangible Assets And Acquisitions Text Block Goodwill, Other Intangible Assets, And Acquisitions. PRODUCT WARRANTIES Product Warranty Disclosure [Text Block] Product Warranties [Abstract] REORGANIZATION Restructuring and Related Activities Disclosure [Text Block] Reorganization [Abstract] STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Capitalization Of Software Development Costs [Abstract] CAPITALIZATION OF SOFTWARE DEVELOPMENT COSTS Research, Development, and Computer Software Disclosure [Text Block] Accounting For Shipping and Handling Costs [Abstract] Accounting For Shipping And Handling Costs. ACCOUNTING FOR SHIPPING AND HANDLING COSTS Accounting For Shipping And Handling Costs Text Block Accounting For Shipping And Handling Costs. Accounts receivable, less allowance of $2,068 at October 2, 2010 and $2,554 at April 3, 2010 Accounts Receivable, Net, Current, Total Accounts Receivable, Net, Current Office equipment and information technology Office equipment and information technology Office equipment and information technology. Intangible assets, less amortization of $38,977 at October 2, 2010 and $32,693 at April 3, 2010 Finite-Lived Intangible Assets, Net, Total Finite-Lived Intangible Assets, Net Allowance, Accounts receivable Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current Other assets: Other Assets Abstract Other assets. Interest income Investment Income, Interest Other income/(expense), net Other Nonoperating Income (Expense) Stock-Based Compensation [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation, Depletion and Amortization, Nonproduction Stock compensation expense Share-based Compensation, Total Share-based Compensation Decrease in accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Acquisition of SEBRA Payments to Acquire Businesses, Gross Acquisition of SEBRA Transfers from inventory to fixed assets for placements of Haemonetics equipment Transfers from inventory to fixed assets Transfers from inventory to fixed assets. Transfers from inventory to fixed assets for placements of Haemonetics equipment Payments on long-term real estate mortgage Mortgage Loans on Real Estate, New Mortgage Loans Decrease in prepaid income taxes Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes. Acquisition of Neoteric Acquisition of Neoteric Acquisition of Neoteric. Acquisition of Neoteric Acquisition of Medicell Acquisition of Medicell Acquisition of Medicell. Acquisition of Medicell Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Statement [Table] Statement [Line Items] Statement, Equity Components [Axis] Total Stockholders Equity Parent [Member] Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash Investing and Financing Activities: Statement of Stockholders' Equity and Other Comprehensive Income [Abstract] Statement of Stockholders' Equity and Other Comprehensive Income. Exercise of stock options and related tax benefit Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options and related tax benefit, Shares Stock Issued During Period, Shares, Stock Options Exercised (Increase)/decrease in inventories Increase (Decrease) in Inventories, Total Increase (Decrease) in Inventories Amendment Description Subsequent Event [Abstract] SUBSEQUENT EVENT Net change in minimum pension liability Other Comprehensive Income, Minimum Pension Liability Net Adjustment, Net of Tax Document Fiscal Year Focus Document Fiscal Period Focus Contingent consideration income Contingent consideration income Contingent Consideration Income Issuance of restricted stock, net of cancellations Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock, net of cancellations, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures