Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type Equity Award [Domain] Phantom stock units Phantom Share Units (PSUs) [Member] Stock-Based Compensation Plans Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Total accrued liability Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent Total cash payments made upon vesting of phantom stock Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards 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 Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Foreign currency forward contracts Foreign Exchange Forward [Member] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash flow hedging Cash Flow Hedging [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] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments, Gain (Loss) [Line Items] Net (Losses) Gains Recognized in Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Net (Losses) Gains Reclassified from Other Comprehensive Income (Loss) into the Consolidated Statements of Operations 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 forward contracts underlying net losses recorded in accumulated other comprehensive loss expected to be reclassified into earnings within the next twelve months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Gains (losses) recognized on derivatives Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net STOCK-BASED COMPENSATION [Abstract] STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS [Abstract] STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS [Abstract] Stock options Employee Stock Option [Member] Stock option activity Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeitures and expirations (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Ending balance (in shares) Stock options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award Options Weighted Average Exercise Price [Abstract] Beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeitures and expirations (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Ending balance (in dollars per share) Stock options exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Additional disclosures Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Enterprise Intelligence Enterprise Intelligence Solutions [Member] Represents the Enterprise Intelligence Solutions reportable segment of the entity. Communications 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. Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Organization, Consolidation and Presentation of Financial Statements [Abstract] Supplemental information regarding condensed consolidated cash flows Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Cash payments (refunds) of income taxes, net Income Taxes Paid, Net Non-cash investing and financing transactions: Noncash Investing and Financing Items [Abstract] Net non-cash assets acquired in CTI Merger Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) 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 Stock options exercised, proceeds received subsequent to period end Stock Options Exercised Proceeds Received Subsequent to Period End Stock options exercised during the period for which the amount received from holders exercising their stock options was received subsequent to the balance sheet date. Leasehold improvements funded by lease incentive Leasehold Improvements Funded by Lease Incentive Value of leasehold improvements funded by lease incentive in noncash transactions. Business Combinations [Abstract] BUSINESS COMBINATIONS Business Combination Disclosure [Text Block] Stockholders' Equity Note [Abstract] 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] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location 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 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. Net (Gains) Losses Reclassified from Other Comprehensive Income (Loss) into the Consolidated Statements 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) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax MERGER AGREEMENT WITH CTI [Abstract] MERGER AGREEMENT WITH CTI [Abstract] Subsequent Event [Table] Subsequent Event [Table] Equity Interest Issued or Issuable by Type [Axis] Equity Interest Type [Axis] Equity Interest Issued or Issuable, Type [Domain] Equity Interest Issued or Issuable, Type [Domain] Related Party Transactions, by Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] CTI Merger CTI Merger [Member] CTI Merger [Member] Merger Agreement with CTI [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Merger with CTI Subsequent Event [Line Items] Number of common stock shares issued to CTI shareholders in the Merger (in shares) Common Shares Issued in Merger Transaction Represents the number of shares issued in Merger Transaction. CTI common stock shares issued and outstanding (in shares) Common Stock, Shares, Outstanding Shares of Common Stock Held by CTI (in shares) Shares of Common Stock Held by Majority Shareholder Represents Number of Shares of Common Stock Held by Majority Shareholder. Summary of components of accumulated other comprehensive loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of amounts reclassified out of AOCI into the statement of operations by location Schedule of amounts reclassified out of AOCI into the statement of operations by location [Table Text Block] [Table Text Block] for Schedule of amounts reclassified out of AOCI into the statement of operations by location [Table] Cash, Cash Equivalents, and Short-term Investments [Abstract] Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block] Cash, Cash Equivalents and Investments [Table Text Block] 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 Goodwill 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 Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 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. March 2014 Term Loans March 2014 Term Loans [Member] March 2014 Term Loans [Member] February 2014 Term Loans February 2014 Term Loans [Member] February 2014 Term Loans 2013 Revolving Line of Credit 2013 Revolving Line of Credit [Member] 2013 Revolving Line of Credit March 2013 Term Loans March 2013 Term Loans [Member] March 2013 Term Loans [Member] Debt Instrument Debt Instrument [Line Items] Common stock issued in public offering (in shares) Stock Issued During Period, Shares, New Issues Repayments of Long-Term Debt Proceeds from (Repayments of) Secured Debt Write Off of Deferred Debt Issuance Costs Resulting From Early Debt Payment Write Off Deferred Debt Issuance Costs Resulting From Early Debt Payment Represents the write off deferred debt issuance costs as a result of early debt principal payments. Write Off of Debt Discount Resulting From Early Debt Payment Write Off Debt Discount Resulting From Early Debt Payment Represents the write off deferred debt discount as a result of early debt principal payments. Losses on early retirements of debt Gains (Losses) on Extinguishment of Debt SUPPLEMENTAL CONDENSED CONSOLIDATED FINANCIAL STATEMENT INFORMATION Additional Financial Information Disclosure [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values of Derivative Financial Instruments Derivatives, Fair Value [Line Items] Term to maturity of derivative contracts is generally this period (in months) Derivative, Lower Remaining Maturity Range Notional amounts of derivative financial instruments Derivative, Notional Amount Assets, Fair Value Derivative Asset, Fair Value, Gross Asset Liabilities, Fair Value Derivative Liability, Fair Value, Gross Liability Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Table] Disclosure of the carrying value of purchased amortizable finite-lived intangible assets, including disclosure of the carrying value of indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. 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] Trade Names Trade Names [Member] Non-competition Agreements Noncompete Agreements [Member] Distribution Network Distribution Rights [Member] Backlog Order or Production Backlog [Member] Indefinite-lived Intangible Assets by Major Class [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, with indefinite lives In Process Research and Development [Member] Acquisition-related intangible assets Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items] Intangible assets with finite lives, Cost Finite-Lived Intangible Assets, Gross Intangible assets with finite lives, Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets with finite lives, Net Finite-Lived Intangible Assets, Net Intangible assets with indefinite lives, cost Indefinite-Lived Intangible Assets (Excluding Goodwill) Total intangible assets, cost 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. Total intangible assets, net STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] 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 Bonus Program, Number of Shares Authorized Stock Bonus Program, Number of Shares Authorized Stock Bonus Program, 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 Stock Issued During Period - Stock Bonus Program Stock Issued During Period, Shares, Issued for Services Vesting period for executive officers Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 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 and backlog 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 income Operating Income (Loss) Other income (expense), net: Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense Other income (expense), net Other Nonoperating Income (Expense) Total other expense, net Nonoperating Income (Expense) Income (loss) before provision for (benefit from) income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for (benefit from) income taxes Income Tax Expense (Benefit) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to Verint Systems Inc. Net Income (Loss) Attributable to Parent Dividends on preferred stock Preferred Stock Dividends, Income Statement Impact Net income attributable to Verint Systems Inc. common shares Net Income (Loss) Available to Common Stockholders, Basic Net income 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 Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reconciling Items Segment Reconciling Items [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Segment revenue Operating Segments [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenue and segment contribution: Revenues Segment Contribution Segment Contribution Represents the segment's contribution to operating profit (loss) before corporate items and other reconciling items not charged to the segment. 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 Stock-based compensation Allocated Share-based Compensation Expense Other unallocated expenses Other Cost and Expense, Operating Other Income (Expense) and Income Before Taxes Other Nonoperating Income (Expense) [Abstract] Other expense, net Number of operating segments Number of Reportable Segments 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 Series A convertible 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) Treasury stock (in shares) Treasury Stock, Shares Operating Results by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Merger with CTI - Other Disclosures [Abstract] Merger with CTI - Other Disclosures [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Comverse Comverse Incorporation [Member] Represents the information pertaining to Comverse Inc., a subsidiary of Comverse Technology Inc. ("Comverse"). Business Acquisition [Axis] Business Acquisition Business Acquisition [Line Items] Beneficial ownership position held by CTI (as a percent) Noncontrolling Interest, Ownership Percentage by Parent Indemnification Obligations Indemnification Obligations Represents Maximum Indemnification Obligations in Merger Transaction Amount in escrow account to support indemnification claims Deposit Assets Long-term Debt, Unclassified [Abstract] 1.50% Convertible Senior Notes Convertible Notes Payable [Member] March 2013 Term Loans March 2013 Term Loans [Member] [Member] March 2013 Term Loans [Member] Other debt Notes Payable, Other Payables [Member] Principal Amount - 1.50% Convertible Senior Notes Debt Instrument, Face Amount Gross term loan borrowings Long-term Debt, Gross Unamortized debt discount Debt Instrument, Unamortized Discount 1.50% Convertible Notes, Net Convertible Notes Payable Term Loans Medium-term Notes 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 Merger Agreement with CTI - Consolidated Financial Statement Impact [Abstract] Merger Agreement with CTI - Consolidated Financial Statement Impact [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series A Preferred Stock [Member] Series A Preferred Stock [Member] Preferred Stock, Carrying Amount Temporary Equity, Carrying Amount, Attributable to Parent CTI's net assets at closing Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Accounting Policies [Abstract] Variable Interest Entities [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] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Less than Maximum [Member] 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. Commitments and Contingencies Disclosure [Abstract] 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 credited against expenses Standard Product Warranty Accrual, Warranties Issued Foreign currency translation and other Standard Product Warranty Accrual, Currency Translation, Increase (Decrease) Warranty liability, end of period 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. Federal Funds Effective Rate Debt Instrument Variable Rate Base Federal Funds [Member] Represents the federal funds effective rate used to calculate the variable rate of the debt instrument. Line of Credit Facility [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] 2013 Amended Credit Agreement - 2014 Amendments 2013 Amended Credit Agreement - 2014 Amendments [Member] 2013 Amended Credit Agreement - 2014 Amendments [Member] 2013 Amended Credit Agreement 2013 Amended Credit Agreement [Member] Represents the entity's 2013 Amended Credit Agreement, entered into in March 2013 [Member] Eurodollar loans Eurodollar Loans [Member] Represents the Eurodollar loans under the Credit Agreement. Base Rate loans Base Rate Loans [Member] Represents the Base Rate loans under the Credit Agreement. Interest period (in months) Debt Instrument Interest Period Represents the interest period for a debt instrument. Variable rate basis Debt Instrument, Description of Variable Rate Basis Interest rate margin (as a percent) Debt Instrument, Basis Spread on Variable Rate Rate used to calculate reference rate (as a percent) Debt Instrument Rate Used to Calculate Reference Rate Represents the rate used to calculate reference rate to compute the variable rate on the debt instrument. Interest Rate Debt Instrument, Interest Rate, Stated Percentage Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Valuation Allowance [Table] Valuation Allowance [Table] KANA Software Inc. KANA Software Inc. [Member] KANA Software Inc. Valuation Allowance Valuation Allowance [Line Items] Valuation Allowance, Deferred Tax Asset, Change in Amount Valuation Allowance, Deferred Tax Asset, Change in Amount Income Tax Disclosures Income Tax Expense (Benefit), Continuing Operations [Abstract] Income (loss) before provision for (benefit from) income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Income tax expense, excluding valuation allowance release IncomeTaxExpenseBenefitExcludingValuationAllowanceRelease Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations,excluding the income tax benefit attributable to the valuation allowance release. Effective income tax rate, excluding valuation allowance release (as a percent) EffectiveIncomeTaxRateContinuingOperationsExcludingValuationAllowanceRelease Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations, excluding the income tax benefit attributable to the valuation allowance release. Equity [Abstract] CONVERTIBLE PREFERRED STOCK CONVERTIBLE PREFERRED STOCK [Text Block] CONVERTIBLE PREFERRED STOCK [Text Block] INTANGIBLE ASSETS AND GOODWILL Goodwill and Intangible Assets Disclosure [Text Block] Foreign currency (losses) gains, net Foreign Currency Transaction Gain (Loss), before Tax Gains (losses) on derivative financial instruments, net Derivative, Gain (Loss) on Derivative, Net Other, 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. Total other income (expense), net Line of Credit Facility Covenant Period [Axis] Line of Credit Facility Covenant Period [Axis] Information about the line of credit facility covenant period. Line of Credit Facility Covenant Period [Domain] Line of Credit Facility Covenant Period [Domain] The line of credit facility covenant period. Line of Credit Facility Covenant Period Until January 2016 Line of Credit Facility Covenant Period Until January 2016 [Member] Line of Credit Facility Covenant Period Until January 2016 Line of Credit Facility Covenant Period January 2016 Thereafter Line of Credit Facility Covenant Period January 2016 Thereafter [Member] Line of Credit Facility Covenant Period January 2016 Thereafter Proceeds from Lines of Credit Proceeds from Lines of Credit Proceeds from Issuance of Debt Proceeds from Issuance of Debt Term loan discount (as a percent) Debt Instrument Discount Rate Percentage The percentage discount at which the debt was issued. Unamortized debt discount Line of Credit Facility, Additional Borrowing Capacity Line of Credit Facility, Current Borrowing Capacity Borrowings Under Line of Credit Facility Line of Credit Facility, Amount Outstanding Repayments of Debt Repayments of Debt 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. Unamortized deferred costs Deferred Finance Costs, Net Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net income 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] Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation - equity portion Share-based Compensation Amortization of discount on convertible notes Accretion Expense Reduction of valuation allowance resulting from acquisition of KANA Non-cash (gains) losses on derivative financial instruments, net Unrealized Gain (Loss) on Derivatives Losses on early retirements of debt 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, accrued expenses, and other current liabilities 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 short-term investments Payments to Acquire Investments Sales and maturities of short-term investments Proceeds from Sale, Maturity and Collection of Investments Cash paid for capitalized software development costs Payments for Software Change in restricted cash and bank time deposits, including long-term portion Increase (Decrease) in Restricted Cash Other investing activities, net Payments for (Proceeds from) Other Investing Activities 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] Proceeds from borrowings, net of original issuance discounts Proceeds from Issuance of Long-term Debt and Capital Securities, Net Repayments of borrowings and other financing obligations Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Proceeds from public issuance of common stock Proceeds from Issuance of Common Stock Proceeds from issuance of warrants Proceeds from Issuance of Warrants Payments for convertible note hedges Payments for Hedge, Financing Activities Payments of equity issuance, debt issuance and other debt-related costs Payment of Financing and Stock Issuance Costs Proceeds from exercises of stock options Proceeds from Stock Options Exercised Purchases of treasury stock Payments for Repurchase of Common Stock Cash received in CTI Merger Cash Acquired from Acquisition 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 Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Effect of 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, at Carrying Value Cash and cash equivalents, end of period Series of Individually Immaterial Business Acquisitions [Member] Series of Individually Immaterial Business Acquisitions [Member] Business Acquisition, August 2011 [Member] Business Acquisition, August 2011 [Member] Represents information pertaining to the August 2011 business acquisition. Changes in fair values, recorded in operating expenses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Payments of contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Business Acquisition, Current and Non-Current Liabilities, Preacquisition Contingency Accrual Business Acquisition, Current and Non-Current Liabilities, Preacquisition Contingency Accrual Business Acquisition, Current and Non-Current Liabilities, Preacquisition Contingency Accrual Business Combinations, Indemnification Assets, Current Portion Business Combinations, Indemnification Assets, Current and Long Term Business Combinations, Indemnification Assets, Current and Long Term STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Exercise Price of Warrants (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Note Hedges - 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 note hedges Warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Long-term Stock Incentive Plan 2010 Long-term Stock Incentive Plan 2010 [Member] Represents information pertaining to the 2010 Long-Term Stock Incentive Plan (the 2010 Plan) that permits the grant of stock options (both incentive and non-qualified), stock appreciation rights, RSAs, RSUs, performance awards, performance compensation awards or other awards to eligible employees, directors and consultants ("Participants"). 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 period over which unrecognized compensation is to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Increase of shares available for issuance Increase of shares available for issuance Represents the increase in the number of shares available for issuance under the share-based compensation plan. 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] Net Income Per Common Share Attributable to Verint Systems Inc. Earnings Per Share, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] NET INCOME PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. Earnings Per Share [Text Block] MERGER WITH CTI Mergers, Acquisitions and Dispositions Disclosures [Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Corporate Joint Venture Corporate Joint Venture [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Payments to Noncontrolling Shareholder of Joint Venture Payments to Related Parties Payments to Related Parties to Settle Accounts Payable Position Expenses from Transactions with Noncontrolling Shareholder of Joint Venture Related Party Transaction, Expenses from Transactions with Related Party Revenue from Transactions with Noncontrolling Shareholder of Joint Venture Revenue from Related Parties Schedule of recognized stock-based compensation expense on the consolidated statements of operations Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary 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] Schedule of total stock-based compensation expense by classification Schedule of Employee Service Share-based Compensation Allocation of Recognized Period Costs Balance Sheet Classification [Table Text Block] Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet for the period. Schedule of stock option activity under the Plans Schedule of Share-based Compensation, Stock Options, Activity [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] 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 Schedule of inventories Schedule of Inventory, Current [Table Text Block] Schedule of Other Income (Expense), 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] Assets Assets [Abstract] Current Assets: Assets, Current [Abstract] Cash and cash equivalents 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 $1.1 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 Goodwill 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 October 31, 2014 and January 31, 2014; none issued. Preferred Stock, Value, Issued Common stock - $0.001 par value; authorized 120,000,000 shares. Issued 61,055,000 and 53,907,000 shares; outstanding 60,707,000 and 53,605,000 shares at October 31, 2014 and January 31, 2014, respectively. Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Treasury stock, at cost - 348,000 and 302,000 shares at October 31, 2014 and January 31, 2014, respectively. Treasury Stock, Value Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total Verint Systems Inc. stockholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders' equity Liabilities and Equity 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 gains (losses) 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] Statement of Comprehensive Income [Abstract] Net 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 (losses) gains on derivative financial instruments designated as hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Benefit from income taxes on net unrealized (losses) gains on derivative financial instruments designated as hedges Other Comprehensive Income (Loss), Tax Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Comprehensive (loss) 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 Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] UTX Acquisition UTX Acquisition [Member] UTX Acquisition on March 31, 2014 [Member] Developed Technology Trademarks and Trade Names Trademarks and Trade Names [Member] Other Intangible Assets Other Intangible Assets [Member] Minimum Minimum [Member] Maximum Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Price per share of common stock issued Shares Issued, Price Per Share Proceeds from issuance of common stock Common stock - other issuance costs Payments of Stock Issuance Costs April 2011 Term Loans April 2011 Term Loans [Member] April 2011 Term Loans Long-term Debt, Gross Principal payments previously required per quarter Debt Instrument, Periodic Payment, Principal Term loan prepayment adjustment - number of consecutive scheduled principal payments prepayment is first applied to Debt Instrument Prepayment Adjustment Number of Consecutive Scheduled Principal Payments Represents the number of consecutive scheduled principal payments in which prepayments are applied first. Interest Rate Premium Applicable To A Repricing Transaction Interest Rate Premium Applicable To A Repricing Transaction Represents Interest Rate Premium Applicable To A Repricing Transaction Under Credit Agreement. 2015 (remainder of year) Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2016 Long-term Debt, Maturities, Repayments of Principal in Year Two 2017 Long-term Debt, Maturities, Repayments of Principal in Year Three 2018 Long-term Debt, Maturities, Repayments of Principal in Year Four 2019 Long-term Debt, Maturities, Repayments of Principal in Year Five 2020 Long-term Debt, Maturities, Repayments of Principal after Year Five Total LONG-TERM DEBT Long-term Debt [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Term Loans Medium-term Notes [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Assets and Liabilities Measured at Fair Value on Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Term Loans - Disclosure of Fair Value Long-term Debt, Fair Value Convertible Notes - Disclosure of Fair Value Convertible Debt, Fair Value Disclosures COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] 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: Assets, Fair Value Disclosure [Abstract] Money market funds Cash and Cash Equivalents, Fair Value Disclosure Commercial Paper (with remaining maturities of three months or less at time of purchase, classified within cash and cash equivalents) Commercial Paper, at Carrying Value Short-term investments, classified as available-for-sale Available-for-sale Securities 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 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 Total amortization expense for acquisition-related intangible assets Impairments of goodwill Goodwill, Impairment Loss DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Loss Contingency, Information about Litigation Matters [Abstract] Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value 1.50% Convertible Notes - Conversion Price (in dollars per share) Debt Instrument, Convertible, Conversion Price Schedule of acquisition-related intangible assets Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Text Block] Tabular disclosure of the characteristics, including initial carrying value, residual amount, and weighted average useful life, of finite-lived intangible assets acquired during the period and acquired indefinite-lived intangible assets by major class. 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] Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table] Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table] Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] Business Acquisition, Pro Forma Information [Abstract] Business Acquisition, Pro Forma Information [Abstract] Pro Forma Revenue Business Acquisition, Pro Forma Revenue Pro Forma Net Income Business Acquisition, Pro Forma Net Income (Loss) Pro Forma Net Income Attributable to Verint Systems Inc. Business Combination, Pro Forma Net Income (Loss) Attributable to Verint Systems Inc. Represents the pro forma net income or loss attributable to Verint Systems Inc. for the period as if the business combination or combinations had been completed at the beginning of a period. Pro Forma Net Income Per Common Share Attributable to Verint Systems Inc., Basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Pro Forma Net Income Per Common Share Attributalbe to Verint Systems Inc., Diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Schedule of Product Warranty Liability Schedule of Product Warranty Liability [Table Text Block] Net Income 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] Dilutive effect of dividends on Preferred Stock Convertible Preferred Dividends, Net of Tax Net income attributable to Verint Systems Inc. for diluted net income per common share Net Income (Loss) Available to Common Stockholders, Diluted 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 Dilutive effect of assumed conversion of Preferred Stock (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Diluted (in shares) Net Income Per Common Share Attributable to Verint Systems Inc. [Abstract] Earnings Per Share, Basic and Diluted [Abstract] Cash Payments to Acquire Businesses, Gross Fair Value of Contingent Consideration Business Combination, Consideration Transferred, Liabilities Incurred Total Purchase Price 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 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. 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. Net tangible liabilities 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 Total Purchase Price Allocations Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Credit Agreement Credit Agreement [Member] Represents the new credit agreement which consists of a seven-year term loan facility and a six-year revolving line of credit. 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 2011 Credit Agreement 2011 Credit Agreement [Member] Represent's the Entity's 2011 Credit Agreement, entered into in April 2011 [Member] 2011 Revolving Line of Credit 2011 Revolving Line of Credit [Member] 2011 Revolving Line of Credit Commitment fee on undrawn portion (as a percent) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] 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] Series A Convertible Preferred Stock Convertible Preferred Stock [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 Realized gains (losses) on sales of available-for-sale securities Available-for-sale Securities, Gross Realized Gain (Loss) Proceeds from sale and maturity of available-for-sale securities Proceeds from Sale and Maturity of Available-for-sale Securities Schedule of Business Acquisitions, by Acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] 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 Payments of contingent consideration Foreign exchange 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 used in calculating fair values of contingent consideration liabilities (as a percent) Fair Value Inputs, Discount Rate Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [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 liabilities for contingent consideration Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Comverse Majority Shareholder [Member] CONVERTIBLE PREFERRED STOCK Temporary Equity [Line Items] Series A convertible preferred stock, issued (in shares) Temporary Equity, Shares Issued Aggregate purchase price Temporary Equity, Par Value Preferred Stock, authorized (in shares) Temporary Equity, Shares Authorized INCOME TAXES Income Tax Disclosure [Text Block] Schedule of calculation of basic and diluted net income 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] 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 gains (losses) on derivative financial instruments designated as hedges Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Unrealized gains on available-for-sale investments Accumulated Net Unrealized Investment Gain (Loss) [Member] Foreign currency translation adjustments Accumulated Translation Adjustment [Member] Activity in Accumulated Other Comprehensive Loss Class of Stock [Line Items] Accumulated other comprehensive income (loss) - beginning balance Other comprehensive (loss) income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified out of accumulated other comprehensive income (loss) Net other comprehensive (loss) income, current period Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Accumulated other comprehensive (loss) income - ending balance Conversion Scenario One Conversion Scenario One [Member] First scenario providing for potential conversion of convertible notes. Conversion Scenario Two Conversion Scenario Two [Member] Second scenario providing for potential conversion of convertible notes. Coupon Interest Rate Proceeds from issuance of convertible notes, net of issuance costs Proceeds from Debt, Net of Issuance Costs 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 - Conversion Ratio Debt Instrument, Convertible, Conversion Ratio 1.50% Convertible Notes - Number of Common Shares Debt Instrument, Convertible, Number of Equity Instruments 1.50% Convertible Notes - Threshold Trading Days Debt Instrument, Convertible, Threshold Trading Days 1.50% Convertible Notes - Window of Consecutive Trading Days Debt Instrument, Convertible, Threshold Consecutive Trading Days 1.50% Convertible Notes - Threshold Percentage for Conversion Trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger 1.50% Convertible Notes - Carrying Value Assumed Noncovertible 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. 1.50% Convertible Notes - Carrying Value of Equity Component Debt Instrument, Convertible, Carrying Amount of Equity Component Debt Issuance Costs Debt Issuance Cost Common Stock, Number of Shares and Other Disclosures Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common stock issuance costs Adjustment To Additional Paid In Capital Debt Issuance Cost The carrying amount of the equity component of debt issuance costs. Intangible Assets - Future Amortization [Abstract] Intangible Assets - Future Amortization [Abstract] 2015 (remainder of year) Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five 2020 and thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five 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 Deferred debt issuance costs, gross Deferred Finance Costs, Gross Class of Stock [Line Items] Treasury stock, cost Purchases of treasury stock (in shares) Treasury Stock, Shares, Acquired Purchases of treasury stock, cost Treasury Stock, Value, Acquired, Cost Method Noncontrolling ownership percentage in joint venture (as a percent) Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Selling, general and administrative Selling General and Administrative Expense [Member] The allocation (or location) of expense to (in) selling, general and administrative expense. 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. Balance sheet classification of award Balance sheet classification of award [Axis] Balance sheet classification of award [Axis] Balance sheet classification of award Balance sheet classification of award [Domain] [Domain] for Balance sheet classification of award [Axis] Equity Classified Awards Equity Classified Awards [Member] Represents the equity-classified awards under the share-based compensation plan. Equity-Settled Awards Equity-Settled Awards [Member] Equity-Settled Awards [Member] Other Liability-Classified Awards Liability Classified Awards [Member] Represents the liability-classified awards under the share-based compensation plan. Schedule of Available-for-sale Securities [Table] 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 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 Securities, Gross Unrealized Gain Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Loss Estimated Fair Value Estimated Fair Value Business Acquisition Contingent Consideration Fair Value Disclosure Transaction and Related Costs Business Acquisition, Cost of Acquired Entity, Transaction Costs During Period Business Acquisition, Cost of Acquired Entity, Transaction Costs During Period Asset Impairment Charges Asset Impairment Charges External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Domain] External Credit Rating by Grouping [Domain] Corporate Credit Ratings of BB- and Ba3 or Better Corporate Credit Ratings of BB- and Ba3 or Better [Member] External Corporate Credit Ratings of BB- and Ba3 or Better Interest rate at end of period (as a percent) Debt Instrument, Interest Rate at Period End 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 Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Payment Made At Closing To Acquire Businesses Payment Made At Closing To Acquire Businesses Payment Made At Closing To Acquire Businesses Cash Acquired from Acquisition 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. Payments to Acquire Businesses, Net of Cash Acquired 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). Cash, Cash Equivalents and Short-term Investments Cash, Cash Equivalents, and Short-term Investments [Text Block] Statement of Stockholders' Equity [Abstract] Statement, Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Total Verint Systems Inc. Stockholders' Equity Parent [Member] 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 Accumulated Other Comprehensive Income (Loss) [Member] Noncontrolling Interest Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balances Balances (in shares) Shares, Outstanding Other comprehensive income (loss) Common stock issued in public offering, net of issuance costs Stock Issued During Period, Value, New Issues Equity component of convertible notes, net of issuance costs Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Purchase of convertible note hedges Purchase of Convertible Note Hedges Decrease in additional paid in capital (APIC) resulting from the purchase of note hedges to reduce dilution risk related to Convertible Notes. Issuance of warrants Adjustments to Additional Paid in Capital, Warrant Issued Stock-based compensation - equity portion 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) 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) Common stock issued for CTI Merger Stock Issued During Period, Value, Acquisitions Stock issued for CTI Merger (in shares) Stock Issued During Period, Shares, Acquisitions Tax effects from stock award plans Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Balances Balances (in shares)