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Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES Noncash Investing and Financing Items [Abstract] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Accrued Liabilities Accrued Liabilities [Member] Interest Expense Interest Expense Finance Lease, Liability, to be Paid, Year One Finance Lease, Liability, to be Paid, Year One Pricing Level I [Member] Pricing Level I [Member] Pricing Level I [Member] Retained earnings Retained Earnings (Accumulated Deficit) Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Equity Method Investments Equity Method Investments [Table Text Block] Entity Filer Category Entity Filer Category Risk-Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Accounting Standards Update and Change in Accounting Principle Accounting Standards Update and Change in Accounting Principle [Text Block] Shares available in employee stock purchase plan Shares available in employee stock purchase plan Shares available in employee stock purchase plan Time-based stock option [Member] Time-based stock option [Member] Time-based stock option [Member] Proceeds from exercise of stock options Cash received from exercise of stock options Proceeds from Stock Options Exercised Indirect tax benefit Indirect tax benefit from stock options Indirect tax benefit from the stock compensation cost received upon the exercise of stock options Finance Lease, Liability, to be Paid, Year Two Finance Lease, Liability, to be Paid, Year Two Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Total stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Amendment Flag Amendment Flag Statement, Equity Components [Axis] Equity Components [Axis] Equity Components [Axis] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Share award data [Abstract] Share award data [Abstract] Share award data [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Inventories Total Inventory, Net Deferred Federal Income Tax Expense (Benefit) Deferred Federal Income Tax Expense (Benefit) Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Other comprehensive income, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Lessee, Operating Lease, Liability, Payments, Due after Year Five Lessee, Operating Lease, Liability, to be Paid, after Year Five Contingent earn-out liability, Noncurrent Business Combination, Contingent Consideration, Liability, Noncurrent Product and Service [Axis] Product and Service [Axis] Interest Margin and Commitment Fee [Table Text Block] Interest Margin and Commitment Fee [Table Text Block] Interest Margin and Commitment Fee [Table Text Block] Term Loan A Payment Year 5 Term Loan A Payment Year 5 Term Loan A Payment Year 5 Convertible preferred stock, par value Preferred Stock, Par or Stated Value Per Share Entity Public Float Entity Public Float Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Short-term Lease, Cost Short-term Lease, Cost ESPP Annual Issuance Increase Limit ESPP Annual Issuance Increase Limit ESPP Annual Issuance Increase Limit Statement [Line Items] Statement [Line Items] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Investment Securities Debt Securities, Available-for-sale Debt Disclosure [Abstract] Debt Disclosure [Abstract] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Deferred Tax Assets, Valuation Allowance Deferred Tax Assets, Valuation Allowance Line of Credit, Current Line of Credit, Current Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Number of options granted Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Document Annual Report Document Annual Report Operating loss carryforwards [Abstract] Operating loss carryforwards [Abstract] Operating loss carryforwards [Abstract] TOTAL ASSETS Assets Plan Name [Domain] Plan Name [Domain] Interest Paid, Excluding Capitalized Interest, Operating Activities Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical [Domain] Geographical [Domain] Research and development Research and Development Expense Pricing Level III [Member] [Member] Pricing Level III [Member] [Member] Contract liabilities Liabilities for contracts Liabilities for contracts Derivative Contract [Domain] Derivative Contract [Domain] Undistributed Earnings of Foreign Subsidiaries Undistributed Earnings of Foreign Subsidiaries Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Tax Credit Carryforward, Amount Tax Credit Carryforward, Amount Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Furniture and Fixtures [Member] Furniture and Fixtures [Member] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion Deferred Costs and Other Assets Deferred Costs and Other Assets Basic (in shares) Weighted average number of common shares outstanding (basic) Weighted Average Number of Shares Outstanding, Basic Diluted Earnings Per Share, Diluted Line of Credit Facility, Expiration Date Line of Credit Facility, Expiration Date Weighted Average Number Diluted Shares Outstanding Adjustment Weighted Average Number Diluted Shares Outstanding Adjustment 2011 Plan [Member] 2011 Plan [Member] 2011 Plan [Member] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent INTANGIBLE ASSETS, net Intangible Assets, Net (Excluding Goodwill) Employee Severance [Member] Employee Severance [Member] Contract with Customer, Liability Contract with Customer, Liability Contract with Customer, Liability Restructuring accrual Restructuring Reserve, Current Deferred Income Tax Liabilities, Net Deferred Income Tax Liabilities, Net Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Term Loan B Applicable Margin [Domain] Term Loan B Applicable Margin [Domain] Term Loan B Applicable Margin [Domain] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Income before income taxes Income before income taxes Income (Loss) Attributable to Parent, before Tax Accounts payable Accounts Payable, Current Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Accounts Receivable, Allowance for Credit Loss Depreciation and amortization Depreciation, Depletion and Amortization Instruments Placed with Customers [Member] Instruments Placed with Customers [Member] Instruments Placed with Customers [Member] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Increase (Decrease) in Inventories Increase (Decrease) in Inventories Noncurrentdeferredtaxassetaccruedrestructuring Noncurrentdeferredtaxassetaccruedrestructuring Noncurrentdeferredtaxassetaccruedrestructuring Restructuring and Related Costs [Table Text Block] Restructuring and Related Costs [Table Text Block] Foreign Infusion System Supplier Foreign Infusion System Supplier [Member] Foreign Infusion System Supplier Common stock, shares issued Balance, Shares Balance, Shares Common Stock, Shares, Outstanding Liabilities Assumed Liabilities Assumed Cost of Goods Sold Cost of Goods and Services Sold Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Warranties and returns Product Warranty Accrual, Current Convertible preferred stock, $1.00 par value Authorized-500 shares; Issued and outstanding - none Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value Entity Central Index Key Entity Central Index Key Equipment revenue [Member] Equipment revenue [Member] Equipment revenue [Member] NET INCOME PER SHARE Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Lease, Cost Lease, Cost Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] STOCKHOLDERS' EQUITY: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Other Prepaid Expense, Current Other Prepaid Expense, Current Computer Equipment and Software [Member] Computer Equipment and Software [Member] Computer Equipment and Software [Member] Treasury Stock, Shares Treasury Stock, Shares, Acquired Debt Instrument [Line Items] Debt Instrument [Line Items] Trading Symbol Trading Symbol Customer-Related Intangible Assets [Member] Customer-Related Intangible Assets [Member] Derivative Asset Derivative Asset Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Increase (Decrease) in Other Operating Assets Increase (Decrease) in Other Operating Assets Line of Credit Facility [Table] Line of Credit Facility [Table] Term Loan A and Credit Line Applicable Margin Spread [Axis] Term Loan A and Credit Line Applicable Margin Spread [Axis] Term Loan A and Credit Line Applicable Margin Spread SEC Schedule, 12-09, Reserve, Warranty SEC Schedule, 12-09, Reserve, Warranty [Member] Derivative Financial Instruments, Assets Derivative Financial Instruments, Assets [Member] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Options, Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Measurement Input, Risk Free Interest Rate [Member] Measurement Input, Risk Free Interest Rate [Member] Investments [Domain] Investments [Domain] Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Noncurrentdeferredtaxassetchargebacksdiscountscustomerconcessions Noncurrentdeferredtaxassetchargebacksdiscountscustomerconcessions Noncurrentdeferredtaxassetchargebacksdiscountscustomerconcessions Construction in Progress [Member] Construction in Progress [Member] Property, Plant and Equipment, Estimated Useful Lives Property, Plant and Equipment, Estimated Useful Lives Infusion Systems [Member] Infusion Systems [Member] Infusion Systems [Member] Sparepartsusage Sparepartsusage Sparepartsusage Common stock, par value Common Stock, Par or Stated Value Per Share Prepaid insurance and property taxes Prepaid insurance and property taxes Prepaid insurance and property taxes Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] CURRENT ASSETS: Assets, Current [Abstract] Cost Finite-Lived Intangible Assets, Gross Income Tax Holiday, Income Tax Benefits Per Share Income Tax Holiday, Income Tax Benefits Per Share Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Issuance of restricted stock and exercise of stock options, shares issued Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax TOTAL CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENT SECURITIES Cash, Cash Equivalents, and Short-term Investments Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Noncurrent deferred tax asset - acquired future tax deductions Noncurrent deferred tax asset - acquired future tax deductions Noncurrent deferred tax asset - acquired future tax deductions Other Current Assets [Text Block] Other Current Assets [Text Block] Finite-Lived Intangible Assets, Amortization Expense, Year Five Finite-Lived Intangible Asset, Expected Amortization, Year Five Auditor Firm ID Auditor Firm ID Payments to Acquire Equity Method Investments Payments to Acquire Equity Method Investments Payments to Acquire Equity Method Investments Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Derivative Asset, Notional Amount Derivative Asset, Notional Amount Long-Term Debt Disclosure [Abstract] Long-Term Debt Disclosure [Abstract] Long-Term Debt Disclosure [Abstract] Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Finance Lease, Interest Payment on Liability Finance Lease, Interest Payment on Liability Goodwill, Foreign Currency Translation Gain (Loss) Goodwill, Foreign Currency Translation Gain (Loss) United States property and equipment [Member] United States property and equipment [Member] United States property and equipment [Member] Legal accrual Accrued legal fees Accrued legal fees Term Loan A and Credit Line Spread Term Loan A and Credit Line Spread Term Loan A and Credit Line Spread Prepaid other taxes Prepaid other taxes Prepaid other taxes business combination consideration - cash holdback business combination consideration - cash holdback business combination consideration - cash holdback Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Long-Lived Assets Long-Lived Assets Other Assets, Current Other Assets, Current Supplemental Cash Flow Information Leases Supplemental Cash Flow Information Leases [Table Text Block] Supplemental Cash Flow Information Leases Lessee, Operating and Finance Lease Lessee, Operating and Finance Lease [Text Block] Lessee, Operating and Finance Lease Benefits Accrued Employee Benefits Advertising Expense Advertising Expense Prepaid Expenses and Other Current Assets [Member] Prepaid Expenses and Other Current Assets [Member] Accrued sales taxes Accrued sales taxes Accrued sales taxes Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Stockholders' Equity Note [Abstract] Warranty and return reserve - inventory Warranty and return reserve - inventory Warranty and return reserve - inventory Balance at Beginning of Period Balance at End of Period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Cost of Sales [Member] Cost of Sales [Member] Accrued Income Taxes, Current Accrued Income Taxes, Current Schedule of stock compensation and related tax benefits [Table Text Block] Schedule of stock compensation and related tax benefits [Table Text Block] Schedule of stock compensation and related tax benefits [Table Text Block] Inventory, Policy [Policy Text Block] Inventory, Policy [Policy Text Block] Current Foreign Tax Expense (Benefit) Current Foreign Tax Expense (Benefit) Proceeds from Sale of Other Property, Plant, and Equipment Proceeds from Sale of Other Property, Plant, and Equipment Developed Technology Rights [Member] Developed Technology Rights [Member] Deferred Revenue, Additions Deferred Revenue, Additions Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table]