Equity [Abstract] Stockholders' Equity Note [Abstract] Dividends on common stock Dividends, Common Stock STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] Long-term Debt, Unclassified [Abstract] LONG-TERM DEBT Long-term Debt [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Line of Credit Facility [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Credit Agreement (as amended) Credit Agreement (as amended) [Member] Represents the credit agreement, as amended and restated [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] February 2014 Term Loans February 2014 Term Loans [Member] February 2014 Term Loans March 2014 Term Loans March 2014 Term Loans [Member] March 2014 Term Loans [Member] Revolving Line of Credit Revolving Credit Facility [Member] Combined February 2014 and March 2014 Term Loans Combined February 2014 and March 2014 Term Loans [Member] Combined activity for the February 2014 and March 2014 Term Loans. Debt Instrument Debt Instrument [Line Items] Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Long-term Debt, Gross Long-term Debt, Gross Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues Proceeds from (Repayments of) Secured Debt Proceeds from (Repayments of) Secured Debt Derivative Instruments and Hedging Activities Disclosure [Abstract] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Cash, Cash Equivalents, and Short-term Investments [Abstract] Schedule of Cash, Cash Equivalents and Short-term Investments Schedule of Available-for-sale Securities [Table] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Cash and bank time deposits Cash [Member] Money market funds Money Market Funds [Member] Commercial paper and corporate debt securities Commercial Paper [Member] Total cash and cash equivalents Cash and Cash Equivalents [Member] Debt Security [Axis] Debt Security [Axis] Major Types of Debt Securities [Domain] Major Types of Debt Securities [Domain] Commercial paper and corporate debt securities (available-for-sale) Corporate Debt Securities [Member] Bank time deposits Bank Time Deposits [Member] Total short-term investments Short-term Investments [Member] Schedule of Available-for-sale Securities Schedule of Available-for-sale Securities [Line Items] Cost basis Available-for-sale Securities, Amortized Cost Basis Gross unrealized gains Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Gross unrealized losses Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Estimated Fair Value Cash and Cash Equivalents, Fair Value Disclosure Estimated Fair Value Available-for-sale Securities Gains and losses on sales of available-for-sale securities Available-for-sale Securities, Gross Realized Gain (Loss) Maturities and sales of investments Proceeds from Sale and Maturity of Available-for-sale Securities Available-for-sale securities in unrealized loss positions Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Other Income and Expenses [Abstract] Foreign currency gains, net Foreign Currency Transaction Gain (Loss), before Tax (Losses) gains on derivative financial instruments, net Derivative, Gain (Loss) on Derivative, Net Other nonoperating income and expense, net Other Nonoperating Income Expense Miscellaneous The net amount of miscellaneous other income and expense, which has not been itemized or categorized in the footnotes to the financial statements and is a component of other income and expense, net. Other income, net Other Nonoperating Income (Expense) Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Schedule of fair values of derivative financial instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of the effects of derivative financial instruments designated as cash flow hedging instruments Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of (losses) gains recognized on derivative financial instruments not designated as hedging instruments Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] 1.50% Convertible Senior Notes Convertible Notes Payable [Member] Interest Expense at Coupon or Contractual Rate Interest Expense, Debt, Excluding Amortization Amortization of Debt Discount Amortization of Debt Discount (Premium) Amortization of Deferred Debt Issuance Costs Amortization of Financing Costs Total Interest Expense Interest Expense, Debt Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Income Statement [Abstract] Statement [Table] Statement [Table] Statement, Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement Statement [Line Items] Revenue: Revenues [Abstract] Product Sales Revenue, Goods, Net Service and support Sales Revenue, Services, Net Total revenue Revenues Cost of revenue: Cost of Revenue [Abstract] Product Cost of Goods Sold Service and support Cost of Services Amortization of acquired technology Amortization of Acquired Intangible Assets Technology The aggregate expense charged against earnings to allocate the cost of technology acquired intangible assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Total cost of revenue Cost of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development, net Research and Development Expense Selling, general and administrative Selling, General and Administrative Expense Amortization of other acquired intangible assets Amortization of Acquired Intangible Assets Other The aggregate expense charged against earnings to allocate the cost of other acquired intangible assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Total operating expenses Operating Expenses Operating (loss) income Operating Income (Loss) Other income (expense), net: Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense Total other expense, net Nonoperating Income (Expense) (Loss) Income before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Net loss attributable to Verint Systems Inc. Net Income (Loss) Attributable to Parent Net loss per common share attributable to Verint Systems Inc. Earnings Per Share [Abstract] Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted-average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Activity in Accumulated Other Comprehensive Loss Class of Stock [Line Items] Purchases of treasury stock (in shares) Treasury Stock, Shares, Acquired Purchases of treasury stock Treasury Stock, Value, Acquired, Cost Method Treasury stock, (in shares) Treasury Stock, Shares Treasury stock, cost Treasury Stock, Value Goodwill and Intangible Assets Disclosure [Abstract] INTANGIBLE ASSETS AND GOODWILL Goodwill and Intangible Assets Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Term Loans Medium-term Notes [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Term Loans - Fair Value Long-term Debt, Fair Value 1.50% Convertible Senior Notes - Fair Value Convertible Debt, Fair Value Disclosures Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships Customer Relationships [Member] Acquired Technology Developed Technology Rights [Member] Trademarks and Trade Names Trademarks and Trade Names [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Individually Immaterial Business Acquisitions Series of Individually Immaterial Business Acquisitions [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Document And Entity Information -- None. No documentation exists for this element. -- 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 Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Intangible Assets - Future Amortization [Abstract] Intangible Assets - Future Amortization [Abstract] 2017 (remainder of year) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Five 2022 and thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Intangible assets with finite lives, Net Finite-Lived Intangible Assets, Net Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block] Cash, Cash Equivalents and Investments [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Debt Instrument Variable Rate Base [Axis] Debt Instrument Variable Rate Base [Axis] The alternative reference rates that may be used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base [Domain] Debt Instrument Variable Rate Base [Domain] Identification of the reference rate that is used to calculate the variable interest rate of the debt instrument. Adjusted LIBO Rate Debt Instrument Variable Rate Base Adjusted LIBO [Member] Represents the adjusted LIBO rate used to calculate the variable interest rate of the debt instrument. Base Rate Debt Instrument Variable Rate Base [Member] Represents the base rate used to calculate the variable interest rate of the debt instrument. Base Rate loans Base Rate Loans [Member] Represents the Base Rate loans under the Credit Agreement. Eurodollar loans Eurodollar Loans [Member] Represents the Eurodollar loans under the Credit Agreement. Variable rate basis Debt Instrument, Description of Variable Rate Basis Interest rate margin (as a percent) Debt Instrument, Basis Spread on Variable Rate Interest Rate at end of period (as a percent) Debt Instrument, Interest Rate, Stated Percentage Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Statement of Comprehensive Income [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Foreign currency forward contracts Foreign Exchange Forward [Member] Interest rate swap Interest Rate Swap [Member] Net (loss) income Other comprehensive income (loss), net of reclassification adjustments: Other Comprehensive Income (Loss), before Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Net unrealized gains on available-for-sale securities Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax Net unrealized gains (losses) on derivatives designated as cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Provision for income taxes on net unrealized gains on foreign exchange contracts designated as hedges Other Comprehensive Income (Loss), Tax Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive (loss) income attributable to Verint Systems Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of calculation of basic and diluted net loss per common share attributable to Verint Systems Inc. Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of anti-dilutive securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Business Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Enterprise Intelligence Enterprise Intelligence Solutions [Member] Represents the Enterprise Intelligence Solutions reportable segment of the entity. Contact Solutions, LLC Contact Solutions, LLC [Member] Contact Solutions, LLC [Member] Cash Paid at Closing Payment Made At Closing To Acquire Businesses Payment Made At Closing To Acquire Businesses Cash Paid at Closing Payments to Acquire Businesses, Gross Post-closing purchase price adjustment Post-closing purchase price adjustment Post-closing purchase price adjustment that increased (decreased) the cash portion of the acquisition price. Business Combination, Consideration Transferred Business Combination, Consideration Transferred Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Other current assets, including cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Current and other liabilities Business Acquisition, Purchase Price Allocation, Current and Other Noncurrent Liabilities The amount of acquisition cost of a business combination allocated to current liabilities and other noncurrent liabilities of the acquired entity. Deferred revenue - current and long-term Deferred Revenue - Current and Long-Term Represents the combined amounts of current and long-term deferred revenue. Net Tangible Assets Acquired Net Tangible Assets Acquired The amount of acquisition cost of a business combination allocated to net tangible assets. Identifiable intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Goodwill Goodwill Total purchase price allocations Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Joint venture, variable interest entity in which entity is primary beneficiary Variable Interest Entity, Primary Beneficiary [Member] Less than Basis of Presentation Variable Interest Entity [Line Items] Equity interest in a joint venture (as a percent) Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Maximum ownership interest in cost method investments (as a percent) Cost Method Investment Ownership Percentage The percentage of ownership of common stock or equity participation in the investee accounted for under the cost method of accounting. Derivative [Table] Derivative [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] DERIVATIVE FINANCIAL INSTRUMENTS Derivative [Line Items] Derivative - Fixed Interest Rate Derivative, Fixed Interest Rate Derivative - Index Interest Rate Floor Derivative, Floor Interest Rate Derivative - Basis Spread on Variable Rate Derivative, Basis Spread on Variable Rate Derivative - Notional Amount Derivative, Notional Amount Derivative - Inception Date Derivative, Inception Date Derivative - Maturity Date Derivative, Maturity Date 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 Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] 2016 Plan 2016 Plan [Member] 2016 Plan [Member] 2017 Plan 2017 Plan [Member] [Member] 2017 Plan [Member] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock Bonus Program Stock Bonus Program [Member] Represents the information pertaining to Stock Bonus Program under which eligible employees may receive a portion of their bonus in the form of fully vested shares of common stock. Stock-Based Compensation Plans Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Vesting period for executive officers (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Trailing period of average price of common stock to determine the number of shares to be issued (in days) Share-based Compensation Arrangement by Share-based Payment Award, Determination of Shares Issuable Trailing Period of Average Price of Common Stock Represents the trailing period of average price of common stock to determine the number of shares to be issued under the share-based compensation plan. Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Discount from market price (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Schedule of Other Income, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Schedule of Supplemental Information Regarding Condensed Consolidated Cash Flows Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Product Warranties Disclosures [Abstract] Movement in Standard Product Warranty Accrual Movement in Standard Product Warranty Accrual [Roll Forward] Warranty liability, beginning of period Standard Product Warranty Accrual Provision charged to expenses Standard Product Warranty Accrual, Preexisting, Increase (Decrease) Warranty charges Standard Product Warranty Accrual, Payments Foreign currency translation and other Standard Product Warranty Accrual, Currency Translation, Increase (Decrease) Warranty liability, end of period Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued expenses and other current liabilities Accrued expenses and other current liabilities [Member] Accrued expenses and other current liabilities [Member] Other Liabilities Other Noncurrent Liabilities [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Derivative designated as hedging instruments Designated as Hedging Instrument [Member] Derivative not designated as hedging instruments Not Designated as Hedging Instrument [Member] Fair Values of Derivative Financial Instruments Derivatives, Fair Value [Line Items] Term to maturity of derivative contracts is generally less than this period (in months) Derivative, Lower Remaining Maturity Range Notional amounts of derivative financial instruments Assets, Fair Value Derivative Asset, Fair Value, Gross Asset Liabilities, Fair Value Derivative Liability, Fair Value, Gross Liability Balance sheet classification of award [Axis] Balance sheet classification of award [Axis] Balance sheet classification of award [Axis] Balance sheet classification of award [Domain] Balance sheet classification of award [Domain] [Domain] for Balance sheet classification of award [Axis] Equity Settled Awards Equity-Settled Awards [Member] Equity-Settled Awards [Member] Liability Settled Awards Liability Settled Awards [Member] Liability Settled Awards [Member] Restricted stock units and restricted stock awards Restricted Stock and Restricted Stock Units RSU [Member] Represents information in the aggregate for restricted stock and restricted units, shares or stock units that an entity has not yet issued because the agreed-upon consideration, such as employee services, has not yet been received. Stock Bonus Program and Bonus Share Program Phantom stock units (cash settled awards) Phantom Share Units (PSUs) [Member] Stock-based compensation expense Allocated Share-based Compensation Expense Net Loss Per Common Share Attributable to Verint Systems Inc. [Abstract] Net Income Per Common Share Attributable to Verint Systems Inc. [Abstract] Net Income Per Common Share Attributable to Verint Systems Inc. [Abstract] 1.50% Convertible Notes - Conversion Price (in dollars per share) Debt Instrument, Convertible, Conversion Price Exercise Price of Warrants (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Assets and Liabilities Measured at Fair Value on Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets: Assets, Fair Value Disclosure [Abstract] Money market funds Commercial paper and corporate debt securities, classified as cash and cash equivalents Commercial Paper, at Carrying Value Short-term investments, classified as available-for-sale Foreign currency forward contracts Foreign Currency Contract, Asset, Fair Value Disclosure Total assets Assets, Fair Value Disclosure Liabilities: Liabilities, Fair Value Disclosure [Abstract] Foreign currency forward contracts Foreign Currency Contracts, Liability, Fair Value Disclosure Interest rate swap agreement Interest Rate Fair Value Hedge Derivative at Fair Value, Net Contingent consideration- business combinations Business Acquisition Contingent Consideration Fair Value Disclosure Fair value, as of the balance sheet date, of potential payments under the contingent consideration arrangement including cash and shares. Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Trade Names Trade Names [Member] Non-competition Agreements Noncompete Agreements [Member] Distribution Networks Distribution Rights [Member] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] In Process Research and Development In Process Research and Development [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets with finite lives, Net Indefinite-Lived Intangible Assets (Excluding Goodwill) Indefinite-Lived Intangible Assets (Excluding Goodwill) Finite and Indefinite-Lived Intangible Assets Gross Finite and Indefinite-Lived Intangible Assets Gross Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets. The aggregate gross carrying amount including any previously recognized impairment charges. Intangible Assets, Net (Excluding Goodwill) Intangible Assets, Net (Excluding Goodwill) Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Cyber Intelligence Communications and Cyber Intelligence Solutions [Member] Represents the Communications and Cyber Intelligence Solutions reportable segment of the entity. Video Intelligence Video and Situation Intelligence Solutions [Member] Represents the Video and situation intelligence solutions reportable segment of the entity. Segment Contribution Operating Segments [Member] Unallocated Segment Reconciling Items [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating results by segment Segment Reporting Information [Line Items] Revenue Revenue adjustments Segment Revenue Adjustments Represents segment revenue adjustments related to deferred revenue of acquired companies. Total revenue Reconciliation of segment contribution to operating income Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Amortization of acquired intangible assets Amortization of Intangible Assets Other unallocated expenses Other Cost and Expense, Operating Operating income Other expense, net (Loss) Income before provision for income taxes Number of Reportable Segments Number of Reportable Segments NET LOSS PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. Earnings Per Share [Text Block] 2017 Plan 2017 Plan [Member] 2017 Plan [Member] Bonus Share Program Bonus Share Program [Member] Represents awards under the Bonus Share Program Combined Stock Bonus Program and Bonus Share Program Combined Stock Bonus Program and Bonus Share Program [Member] Represents combined Stock Bonus Program and Bonus Share Program amounts Total accrued liability Deferred Compensation Share-based Arrangements, Liability, Current Operating results by segment Schedule of Segment Reporting Information, by Segment [Table Text Block] STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS [Abstract] STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS [Abstract] RSUs Restricted Stock Units (RSUs) [Member] Summary of award activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Released (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Ending balance (in shares) Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award Equity Instruments Other than Options Weighted Average Grant Date Fair Value [Abstract] Beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Released (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Ending balance (in dollars per share) Additional disclosures Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Remaining weighted-average vesting period over which expense is expected to be recognized (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Net Income Attributable to Verint Systems Inc. [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Net loss attributable to Verint Systems Inc. Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Dilutive effect of employee equity award plans (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Dilutive effect of 1.50% convertible senior notes (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Dilutive effect of warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Diluted (in shares) Earnings Per Share, Basic and Diluted [Abstract] Earnings Per Share, Basic and Diluted [Abstract] Preparation of Condensed Consolidated Financial Statements Basis of Accounting [Text Block] Reclassification Within Condensed Consolidated Statement of Cash Flows Reclassifications [Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Significant Accounting Policies Significant Accounting Policies [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] 2017 (remainder of year) Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2018 Long-term Debt, Maturities, Repayments of Principal in Year Two 2019 Long-term Debt, Maturities, Repayments of Principal in Year Three 2020 Long-term Debt, Maturities, Repayments of Principal in Year Four Total Business Combination, Consideration Transferred, Liabilities Incurred Business Combination, Consideration Transferred, Liabilities Incurred Deferred revenue - current and long-term Deferred Income Taxes - Current and Long-Term Deferred Income Taxes - Current and Long-Term Represents the combined amount of current and long-term deferred income taxes. SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of stock-based compensation expense by line item Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of stock-based compensation expense by type of award Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Summary of RSU activity under the Plans Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets Finite-Lived Intangible Assets [Line Items] Intangible assets, net Changes in fair values, recorded in operating expenses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Business Acquisition Contingent Consideration Fair Value Disclosure Payments of contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements BUSINESS COMBINATIONS Business Combination Disclosure [Text Block] Goodwill, Impairment Loss Goodwill, Impairment Loss Impairment of Intangible Assets (Excluding Goodwill) [Abstract] Impairment of Intangible Assets (Excluding Goodwill) [Abstract] Impairment of acquired intangible assets Impairment of Intangible Assets, Finite-lived Amortization [Abstract] Amortization [Abstract] Amortization of Intangible Assets Accumulated other comprehensive income (loss) [Abstract] Accumulated other comprehensive loss [Abstract] Accumulated other comprehensive loss [Abstract] components of accumulated other comprehensive income (loss) [Axis] components of accumulated other comprehensive income (loss) [Axis] components of accumulated other comprehensive income (loss) [Axis] components of accumulated other comprehensive income (loss) [Domain] components of accumulated other comprehensive income (loss) [Domain] [Domain] for components of accumulated other comprehensive income (loss) [Axis] Unrealized (losses) gains on derivative financial instruments designated as hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Unrealized gains (losses) on available-for-sale investments Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Foreign currency translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Foreign Exchange Contract Foreign Exchange Contract [Member] Accumulated other comprehensive loss - beginning balance Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) before reclassifications Other comprehensive income (loss) before reclassifications Other comprehensive income (loss) before reclassifications Gains reclassified out of accumulated other comprehensive income (loss) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Net other comprehensive income (loss), current period Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Accumulated other comprehensive income (loss) - ending balance Statement of Stockholders' Equity [Abstract] Statement, Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Treasury Stock Treasury Stock [Member] Accumulated Deficit Retained Earnings [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Total Verint Systems Inc. Stockholders' Equity Parent [Member] Noncontrolling Interest Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balances Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balances (in shares) Shares, Outstanding Net (loss) income Other comprehensive income (loss) Stock-based compensation - equity-classified awards Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Exercises of stock options Stock Issued During Period, Value, Stock Options Exercised Exercises of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Common stock issued for stock awards and stock bonuses Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Common stock issued for stock awards and stock bonuses (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Purchases of treasury stock Purchases of treasury stock (in shares) Tax effects from stock award plans Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Balances Balances (in shares) Goodwill - tax deductible Business Acquisition, Goodwill, Expected Tax Deductible Amount Goodwill - not tax deductible Business Acquisition, Purchase Price Allocation, Goodwill, Tax Not Deductible Amount The amount of goodwill arising from a business combination that is expected not to be deductible for tax purposes. Transaction and Related Costs, Including Integration Costs Business Acquisition, Cost of Acquired Entity, Transaction Costs During Period Business Acquisition, Cost of Acquired Entity, Transaction Costs During Period SUPPLEMENTAL CONDENSED CONSOLIDATED FINANCIAL STATEMENT INFORMATION Additional Financial Information Disclosure [Text Block] Statement of Financial Position [Abstract] Allowance for Doubtful Accounts Allowance for Doubtful Accounts Receivable, Current Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, issued (in shares) Preferred Stock, Shares Issued Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, authorized (in shares) Common Stock, Shares Authorized Common stock, issued (in shares) Common Stock, Shares, Issued Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Schedule of acquisition-related intangible assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Schedule of net acquisition-related intangible assets by reportable segment Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Segment [Text Block] Tabular disclosure of acquired finite-lived and indefinite-lived intangible assets by segment. Schedule of estimated future amortization expense on finite-lived acquisition-related intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of goodwill activity Schedule of Goodwill [Table Text Block] Schedule of assets and liabilities measured at fair value on recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of changes in the estimated fair value of liability for contingent consideration measured using significant unobservable inputs (Level 3) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Business Acquisitions, by Acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Purchase Price Allocations - Acquisitions for the Year Ended January 31, 2016 Schedule of Purchase Price Allocation Jan 2016 [Table Text Block] Schedule of Purchase Price Allocation Jan 2016 [Table Text Block] Other debt Notes Payable, Other Payables [Member] Principal Amount - 1.50% Convertible Senior Notes Debt Instrument, Face Amount Gross term loan borrowings Other debt Medium-term Notes Unamortized debt discounts and issuance costs Unamortized debt discounts and issuance costs Unamortized debt discounts and issuance costs, netted against gross debt Total debt Long-term Debt Current maturities of long-term debt Long-term Debt, Current Maturities Long-term debt Long-term Debt, Excluding Current Maturities Cash, Cash Equivalents and Short-term Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Income Tax Disclosure [Abstract] Unrecognized Tax Benefits Unrecognized Tax Benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Debt Disclosure [Abstract] Consolidated Total Debt to Consolidated EBITDA Ratio Consolidated Total Debt to Consolidated EBITDA Ratio Represents the Consolidated Total Debt to Consolidated EBITDA (each as defined in the Credit Agreement) leverage ratio. Loss Contingency, Information about Litigation Matters [Abstract] Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Inventories Inventory, Net [Abstract] Raw materials Inventory, Raw Materials, Gross Work-in-process Inventory, Work in Process, Gross Finished goods Inventory, Finished Goods, Gross Total inventories Inventory, Net Summary of components of accumulated other comprehensive loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of amounts reclassified out of accumulated other comprehensive income (loss) into the statement of operations by location Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Note Hedges - Shares (in shares) Option Indexed to Issuer's Equity, Shares Note Hedges - Strike Price (in dollars per share) Option Indexed to Issuer's Equity, Strike Price Payments for convertible note hedges Payments for Hedge, Financing Activities Proceeds from issuance of warrants Proceeds from Issuance of Warrants Assets Assets [Abstract] Current Assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash and bank time deposits Restricted Cash and Cash Equivalents, Current Short-term investments Other Short-term Investments Accounts receivable, net of allowance for doubtful accounts of $1.8 million and $1.2 million, respectively Accounts Receivable, Net, Current Inventories Deferred cost of revenue Deferred Costs, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Capitalized software development costs, net Capitalized Computer Software, Net Long-term deferred cost of revenue Deferred Costs, 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 expenses and other current liabilities Accrued Liabilities, Current Deferred revenue Deferred Revenue, Current Total current liabilities Liabilities, Current Long-term deferred revenue Deferred Revenue, Noncurrent Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and Contingencies Commitments and Contingencies Stockholders' Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock - $0.001 par value; authorized 2,207,000 shares at April 30, 2016 and January 31, 2016, respectively; none issued. Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests Common stock - $0.001 par value; authorized 120,000,000 shares. Issued 63,046,000 and 62,614,000 shares; outstanding 62,198,000 and 62,266,000 shares at April 30, 2016 and January 31, 2016, respectively. Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Treasury stock, at cost - 848,000 and 348,000 shares at April 30, 2016 and January 31, 2016, respectively. Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Total Verint Systems Inc. stockholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash flow hedging Cash Flow Hedging [Member] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments, Gain (Loss) [Line Items] Net gains (losses) recognized in accumulated other comprehensive loss Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, gains (losses) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Gains (losses) from ineffectiveness Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months INCOME TAXES Income Tax Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net (loss) income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation, excluding cash-settled awards Share-based Compensation Amortization of discount on convertible notes Accretion Expense Non-cash losses (gains) on derivative financial instruments, net Unrealized Gain (Loss) on Derivatives Other non-cash items, net Other Noncash Income (Expense) Changes in operating assets and liabilities, net of effects of business combinations: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Deferred cost of revenue Increase (Decrease) in Deferred Charges Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash paid for business combinations, including adjustments, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Purchases of investments Payments to Acquire Investments Cash paid for capitalized software development costs Payments for Software Change in restricted cash and bank time deposits, including long-term portion, and other investing activities, net Increase (Decrease) in Restricted Cash and Investments Net cash 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 Operations [Abstract] Repayments of borrowings and other financing obligations Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Proceeds from exercises of stock options Proceeds from Stock Options Exercised Purchases of treasury stock Payments for Repurchase of Common Stock Payments of contingent consideration for business combinations (financing portion) Business Combination, Contingent Consideration Arrangements, Payment of Contingent Consideration, Financing Business Combination, Contingent Consideration Arrangements, Payment of Contingent Consideration, Financing Portion Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Effect of foreign currency exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Net (decrease) increase in cash and cash equivalents Net Cash Provided by (Used in) Continuing Operations Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of revenue - product Cost of Goods Sold [Member] The allocation (or location) of expense to (in) cost of goods sold. Cost of revenue - service and support Cost of Services [Member] The allocation (or location) of expense to (in) cost of services. Research and development, net Research and Development Expense [Member] Selling, general and administrative Selling General and Administrative Expense [Member] The allocation (or location) of expense to (in) selling, general and administrative expense. Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets [Member] Other Assets Other Assets [Member] Intangible Asset - Undelivered Performance Obligations Intangible Asset - Undelivered Performance Obligations Represents the fair value of undelivered performance obligations assumed in a business combination for which payment has not yet been received (backlog). Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value by Liability Class [Axis] Liability Class [Axis] Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain] Fair Value by Liability Class [Domain] Liability for contingent consideration Contingent Consideration [Member] Represents potential amounts payable by the entity as contingent consideration in connection with a business acquisition. Liability for contingent consideration measured using significant unobservable inputs (Level 3) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in the estimated fair value of liability for contingent consideration measured using significant unobservable inputs (Level 3) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair value measurement at the beginning of the period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Contingent consideration liabilities recorded for business combinations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Foreign currency translation and other Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Fair value measurement at the end of the period Discount rates (as a percent) Fair Value Inputs, Discount Rate Schedule of Product Warranty Liability Schedule of Product Warranty Liability [Table Text Block] Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Amounts Reclassified From AOCI Into the Statement of Operations [Abstract] Amounts Reclassified From AOCI Into the Statement of Operations [Abstract] Amounts Reclassified From AOCI Into the Statement of Operations [Abstract] Selling, general and administrative Selling, General and Administrative Expenses [Member] Reclassifications Out of Accumulated Other Comprehensive Income (Loss) Reclassifications Out of Accumulated Other Comprehensive Income (Loss) [Line Items] Represents amounts reclassified out of Accumulated Other Comprehensive Income (Loss) into the Statement of Operations. Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Income Taxes Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax Amounts reclassified out of accumulated other comprehensive income (loss) Supplemental Cash Flow Elements [Abstract] Cash paid for interest Interest Paid Cash payments of income taxes, net Income Taxes Paid, Net Accrued but unpaid purchases of property and equipment Capital Expenditures Incurred but Not yet Paid Inventory transfers to property and equipment Inventory Transfer to Property and Equipment Value of inventory transferred to property and equipment in noncash transactions. Liabilities for contingent consideration in business combinations Liabilities Assumed Coupon Interest Rate Proceeds from issuance of convertible notes, net of underwriting discounts Proceeds from Debt, Net of Issuance Costs 1.50% Convertible Notes - Conversion Ratio Debt Instrument, Convertible, Conversion Ratio 1.50% Convertible Notes - Base Principal Amount For Conversion Rate Convertible Notes Base Principal Amount For Conversion Rate Represents the base principal amount of convertible notes against which the conversion rate is applied for purposes of determining the number of common shares into which the notes are convertible. 1.50% Convertible Notes - Number of Common Shares (in shares) Debt Instrument, Convertible, Number of Equity Instruments 1.50% Convertible Notes - Carrying Value of Debt Component Convertible Notes Payable 1.50% Convertible Notes - Carrying Value of Equity Component Debt Instrument, Convertible, Carrying Amount of Equity Component Assumed Nonconvertible Debt Interest Rate Assumed Noncovertible Debt Interest Rate Represents the assumed noncovertible debt interest rate used to determine the issue-date fair value of the liability component of convertible debt that contains a cash settlement feature. Debt Instrument, Unamortized Discount Debt Instrument, Unamortized Discount Unamortized Debt Issuance Expense Unamortized Debt Issuance Expense Summary of long-term debt Schedule of Long-term Debt Instruments [Table Text Block] Summary of future scheduled principal payments on term loans Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of components of interest expense Schedule of Components of Interest Expense [Table Text Block] Schedule of Components of Interest Expense 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] Stock options and restricted stock-based awards Stock Compensation Plan [Member] 1.50% convertible senior notes Convertible Debt [Member] Warrants Warrant [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Provision for income taxes Effective Income Tax Rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill activity Goodwill [Line Items] Goodwill, gross at the beginning of the period Goodwill, Gross Accumulated impairment losses Goodwill, Impaired, Accumulated Impairment Loss Goodwill, net at the beginning of the period Business combinations Goodwill, Acquired During Period Foreign currency translation and other Goodwill, Translation and Purchase Accounting Adjustments Goodwill, net, at the end of the period