Amortization of Acquired Intangible Assets Technology Amortization of acquired technology and backlog 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. Inventory Transfer to Property and Equipment Inventory transfers to property and equipment Value of inventory transferred to property and equipment in noncash transactions. Supplier Financing Arrangements Purchases under supplier financing arrangements, including capital leases Represents purchases made under supplier financing arrangements in noncash transactions. 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. Stock options exercised, proceeds received subsequent to period end Stock Options Exercised Proceeds Received Subsequent to Period End Document and Entity Information Condensed Consolidated Balance Sheets Statement [Table] Statement, Scenario [Axis] Scenario, Unspecified [Domain] Statement [Line Items] Statement Assets [Abstract] Assets Assets, Current [Abstract] Current Assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Accounts Receivable, Net, Current Accounts receivable, net Inventory, Net Inventories Total inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Total current assets Deferred Costs, Current Deferred cost of revenue Restricted Cash and Cash Equivalents, Current Restricted cash and bank time deposits Property, Plant and Equipment, Net Property and equipment, net Total property and equipment, net Total property and equipment, net Goodwill Goodwill Goodwill, net at the beginning of the period Goodwill, net, at the end of the period Goodwill associated with certain other business combinations Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Total intangible assets, net Deferred Costs, Noncurrent Long-term deferred cost of revenue Other Assets, Noncurrent Other assets Assets Total assets Total assets Liabilities and Equity [Abstract] Liabilities, Preferred Stock, and Stockholders' Equity Liabilities, Current [Abstract] Current Liabilities: Accounts Payable, Current Accounts payable Long-term Debt, Current Maturities Current maturities of long-term debt Less: current maturities Deferred Revenue, Current Deferred revenue Due to Related Parties, Current Liabilities to affiliates Liabilities, Current Total current liabilities Total current liabilities Accrued Liabilities, Current Accrued expenses and other current liabilities Long-term Debt, Excluding Current Maturities Long-term debt Long-term debt Other Liabilities, Noncurrent Other liabilities Liabilities Total liabilities Total liabilities Commitments and Contingencies. Commitments and Contingencies Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' Equity: Common Stock, Value, Issued Common stock - $0.001 par value; authorized 120,000,000 shares. Issued 39,421,000 and 39,265,000 shares; outstanding 39,128,000 and 38,982,000 shares as of April 30, 2012 and January 31, 2012, respectively. Treasury Stock, Value Treasury stock, at cost - 293,000 and 283,000 shares as of April 30, 2012 and January 31, 2012, respectively. Treasury stock, cost Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Total accumulated other comprehensive loss Stockholders' Equity Attributable to Parent Total Verint Systems Inc. stockholders' equity Total Verint Systems Inc. stockholders' equity Additional Paid in Capital Additional paid-in capital Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling interest Liabilities and Equity Total liabilities, preferred stock, and stockholders' equity Total liabilities, preferred stock, and stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total stockholders' equity Total stockholders' equity Balances Balances Deferred Revenue, Noncurrent Long-term deferred revenue Temporary Equity, Carrying Amount Preferred Stock - $0.001 par value; authorized 2,500,000 shares. Series A convertible preferred stock; 293,000 shares issued and outstanding; aggregate liquidation preference and redemption value of $355,398 at April 30, 2012. Aggregate purchase price Carrying value of the preferred stock Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, authorized shares Common Stock, Shares, Issued Common stock, Issued shares Number of shares issued Temporary Equity, Par or Stated Value Per Share Preferred Stock, par value (in dollars per share) Temporary Equity, Shares Authorized Preferred Stock, authorized shares Temporary Equity, Shares Issued Series A convertible preferred stock, shares issued Temporary Equity, Shares Outstanding Series A convertible preferred stock, shares outstanding Temporary Equity, Liquidation Preference Series A convertible preferred stock, aggregate liquidation preference value (in dollars) Liquidation preference Temporary Equity, Redemption Value Series A convertible preferred stock, redemption value (in dollars) Common Stock, Shares, Outstanding Common stock, outstanding shares Treasury Stock, Shares Treasury stock, shares Revenues [Abstract] Revenue: Sales Revenue, Goods, Net Product Sales Revenue, Services, Net Service and support Revenues Total revenue Revenue Total revenue Cost of Revenue [Abstract] Cost of revenue: Cost of Goods Sold Product Cost of Services Service and support Cost of Revenue Total cost of revenue Gross Profit Gross profit Gross profit Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development, net Selling, General and Administrative Expense Selling, general and administrative Operating Expenses Total operating expenses Operating Income (Loss) Operating income Segment contribution or Operating income Nonoperating Income (Expense) [Abstract] Other income (expense), net: Investment Income, Interest Interest income Other Nonoperating Income (Expense) Other income, net Total other income (expense), net Nonoperating Income (Expense) Total other expense, net Other expense, net Interest Expense Interest expense Gains (Losses) on Extinguishment of Debt Loss on extinguishment of debt Loss on extinguishment of debt Income Tax Expense (Benefit) Provision for income taxes Total provision for income taxes Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net income (loss) Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Parent Net income (loss) attributable to Verint Systems Inc. Net Income (Loss) Available to Common Stockholders, Basic Net income (loss) attributable to Verint Systems Inc. common shares Net income (loss) attributable to Verint Systems Inc. common shares, for basic net income (loss) per common share Net income (loss) per common share attributable to Verint Systems Inc. NET INCOME (LOSS) PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Preferred Stock Dividends, Income Statement Impact Dividends on preferred stock Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average common shares outstanding Weighted-average shares outstanding: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Diluted (in shares) Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income before provision for income taxes Income (loss) before provision for income taxes Condensed Consolidated Statements of Operations Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information: Supplemental information regarding consolidated cash flows Interest Paid Cash paid for interest Income Taxes Paid, Net Cash paid for income taxes, net of refunds received Noncash Investing and Financing Items [Abstract] Non-cash investing and financing transactions: Capital Expenditures Incurred but Not yet Paid Accrued but unpaid purchases of property and equipment Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Accrued but unpaid debt issuance and other debt related costs Liabilities Assumed Liabilities for contingent consideration in business combinations Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Share-based Compensation Stock-based compensation - equity portion Other Noncash Income (Expense) Other non-cash items, net Unrealized Gain (Loss) on Derivatives Non-cash losses on derivative financial instruments, net Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of effects of business combination: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Deferred Charges Deferred cost of revenue Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued expenses Increase (Decrease) in Deferred Revenue Deferred revenue Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Other Operating Assets and Liabilities, Net Other, 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] Payments to Acquire Businesses, Net of Cash Acquired Cash paid for business combinations, including adjustments, net of cash acquired Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments for (Proceeds from) Derivative Instrument, Investing Activities Settlements of derivative financial instruments not designated as hedges Payments for Software Cash paid for capitalized software development costs Increase (Decrease) in Restricted Cash and Investments Change in restricted cash and bank time deposits Payments for (Proceeds from) Other Investing Activities 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 Issuance of Long-term Debt and Capital Securities, Net Proceeds from borrowings, net of original issuance discount Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Repayments of borrowings and other financing obligations Payments of Debt Issuance Costs Payments of debt issuance and other debt-related costs Proceeds from Stock Options Exercised Proceeds from exercises of stock options Payments for Repurchase of Common Stock Purchases of treasury stock Proceeds from (Payments for) Other Financing Activities Other financing activities Net cash provided by (used in) 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 Condensed Consolidated Statements of Cash Flows BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Earnings Per Share [Text Block] NET INCOME (LOSS) PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. INVENTORIES Inventory Disclosure [Text Block] INVENTORIES BUSINESS COMBINATIONS Business Combination Disclosure [Text Block] BUSINESS COMBINATIONS INTANGIBLE ASSETS AND GOODWILL Goodwill and Intangible Assets Disclosure [Text Block] INTANGIBLE ASSETS AND GOODWILL LONG-TERM DEBT Long-term Debt [Text Block] LONG-TERM DEBT CONVERTIBLE PREFERRED STOCK Preferred Stock [Text Block] CONVERTIBLE PREFERRED STOCK STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDERS' EQUITY INCOME TAXES Income Tax Disclosure [Text Block] INCOME TAXES FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] FAIR VALUE MEASUREMENTS DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] DERIVATIVE FINANCIAL INSTRUMENTS STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] STOCK-BASED COMPENSATION OTHER INCOME (EXPENSE), NET Other Income and Other Expense Disclosure [Text Block] OTHER INCOME (EXPENSE), NET LEGAL PROCEEDINGS Legal Matters and Contingencies [Text Block] LEGAL PROCEEDINGS SEGMENT INFORMATION Segment Reporting Segment Reporting Disclosure [Text Block] SEGMENT INFORMATION Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income Total other comprehensive income Stock Issued During Period, Value, Stock Options Exercised Exercises of stock options Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercises of stock options (in shares) Exercised (in shares) Treasury Stock, Value, Acquired, Cost Method Purchases of treasury stock Treasury Stock, Shares, Acquired Purchases of treasury stock (in shares) Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Tax effects from stock award plans Stockholders' Equity, Period Increase (Decrease) Stock Issued During Period, Shares, Period Increase (Decrease) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation expense Shares, Outstanding Balances (in shares) Balances (in shares) Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Common stock issued for stock awards Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Common stock issued for stock awards (in shares) Statement, Equity Components [Axis] Equity Component [Domain] Total Verint Systems Inc. Stockholders' Equity Parent [Member] Common Stock Common Stock [Member] Treasury Stock Treasury Stock [Member] Accumulated Deficit Retained Earnings [Member] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss) [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Noncontrolling Interest Noncontrolling Interest [Member] Comprehensive Income Comprehensive Income [Member] Condensed Consolidated Statements of Stockholders' Equity Entity Central Index Key Document Type Document Period End Date Amendment Flag Amendment Description Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name SUBSEQUENT EVENTS Subsequent Events [Text Block] SUBSEQUENT EVENTS Net increase in cash and cash equivalents Net Cash Provided by (Used in) Continuing Operations Increase (Decrease) in Restricted Cash Investments and Other Investing Activities Changes in restricted cash and bank time deposits and other investing activities Represents the net cash inflow or outflow during the period for the aggregate increase (decrease) associated with funds and investments that are not available for withdrawal or use and also includes the cash inflow or outflow from other investing activities. Adjustments to Additional Paid in Capital, Other Stock options issued in business combination Additional Financial Information Disclosure [Text Block] SUPPLEMENTAL CONDENSED CONSOLIDATED FINANCIAL STATEMENT INFORMATION SUPPLEMENTAL CONDENSED CONSOLIDATED FINANCIAL STATEMENT INFORMATION Research, Development, and Computer Software Disclosure [Text Block] RESEARCH AND DEVELOPMENT, NET RESEARCH AND DEVELOPMENT, NET Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS RELATED PARTY TRANSACTIONS Quarterly Financial Information [Text Block] SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Deferred Tax Assets, Net, Current Deferred income taxes Current deferred tax assets Deferred Tax Assets, Net, Noncurrent Long-term deferred income taxes Long-term deferred tax assets Deferred Tax Liabilities, Current Deferred income taxes Current deferred tax liabilities Deferred Tax Liabilities, Noncurrent Long-term deferred income taxes Long-term deferred tax liabilities Accounts receivable, allowance for doubtful accounts (in dollars) Allowance for Doubtful Accounts Receivable, Current Balance at beginning of year Balance at end of year Dividends paid to noncontrolling interest Payments of Dividends, Noncontrolling Interest Provision for Doubtful Accounts Provision for doubtful accounts Goodwill, Impairment Loss Impairments of goodwill Deferred Income Tax Expense (Benefit) Provision (benefit) for deferred income taxes Total deferred income tax provision benefit Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefits from stock award plans Increase (Decrease) in Other Current Liabilities Other liabilities Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefits from stock award plans Proceeds from Sale, Maturity and Collection of Investments Sales and maturities of investments Represents integration, restructuring and other expenses incurred during the period by the reporting entity. Integration, Restructuring and Other Expenses Integration, restructuring and other, net Forfeitures of restricted stock awards Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Forfeitures of restricted stock awards (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Dividends to noncontrolling interest SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] INVESTMENTS Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] INVESTMENTS BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Schedule of Quarterly Financial Information [Table Text Block] Summarized consolidated quarterly financial information Net Income (Loss) Available to Common Stockholders, Diluted Net income (loss) attributable to Verint Systems Inc. for diluted net income (loss) per common shares Quarterly Financial Data [Abstract] Quarterly operating results Professional Fees and Related Expenses Incurred Restatement of Previously Filed Financial Statements and Extended Filing Delay Status Professional fees and related expenses associated with restatement of previously filed financial statements and previous extended filing delay status The charge against earnings during the period comprised of professional fees and related expenses associated with the restatement of the entity's previously filed financial statements and extended filing delay status. Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments Realized and unrealized losses on interest rate swap Losses on interest rate swap not designated as a hedging instrument Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of anti-dilutive securities Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common shares excluded from calculation: Convertible Preferred Stock [Member] Convertible preferred stock Stock Compensation Plan [Member] Stock options and restricted stock-based awards Stock Bonus Plan Incremental Common Shares Attributable to Conversion of Preferred Stock Dilutive effect of assumed conversion of preferred stock (in shares) Incremental Common Shares Attributable to Share-based Payment Arrangements Dilutive effect of employee equity award plans (in shares) Schedule of Goodwill [Table Text Block] Schedule of goodwill activity Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of estimated future amortization expense on finite-lived acquisition-related intangible assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Schedule of acquisition-related intangible assets Customer Relationships [Member] Customer relationships Trade Names [Member] Trade names Noncompete Agreements [Member] Non-competition agreements Distribution Rights [Member] Distribution network Enterprise Intelligence Solutions [Member] Enterprise Intelligence Represents the Enterprise Intelligence Solutions reportable segment of the entity. Finite-Lived Intangible Assets, Gross Intangible assets with finite lives, Cost Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets with finite lives, Accumulated Amortization Finite-Lived Intangible Assets, Net Intangible assets with finite lives, Net Finite-Lived Intangible Assets, Useful Life, Maximum Estimated useful lives of finite-lived identifiable intangible assets, maximum (in years) Maximum estimated useful life of all finite-lived identifiable assets (in years) Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] Estimated future amortization expense on finite-lived acquisition-related intangible assets Finite-Lived Intangible Assets, Future Amortization Expense Total Future Amortization Expense, Year One 2013 (Remainder of year) Future Amortization Expense, Year Two 2014 Future Amortization Expense, Year Three 2015 Future Amortization Expense, Year Four 2016 Future Amortization Expense, Year Five 2017 Future Amortization Expense, after Year Five 2018 and thereafter Goodwill [Line Items] Goodwill activity Goodwill [Roll Forward] Goodwill Goodwill, Gross Goodwill, gross at the beginning of the period Goodwill, Impaired, Accumulated Impairment Loss Accumulated impairment losses Goodwill, Acquired During Period Business acquisition Goodwill, Translation and Purchase Accounting Adjustments Foreign currency translation Period over which No Investment Made for Marketable Debt or Equity Securities Period of no investment in marketable debt or equity securities (in years) Represents the period over which no investment was made in marketable debt or equity securities. Schedule of Inventory, Current [Table Text Block] Schedule of inventories Property, Plant and Equipment [Table Text Block] Schedule of property and equipment, net Schedule of Other Assets, Noncurrent [Table Text Block] Schedule of other assets Schedule of Accrued Liabilities [Table Text Block] Schedule of accrued expenses and other liabilities Schedule of Other Liabilities Noncurrent [Table Text Block] Schedule of other liabilities Tabular disclosure of noncurrent liabilities. Schedule of Other Nonoperating Income (Expense) [Table Text Block] Schedule of other income (expense), net Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of supplemental information regarding consolidated cash flows Inventory, Net [Abstract] Inventories Inventory, Raw Materials Raw materials Inventory, Work in Process Work-in-process Inventory, Finished Goods Finished goods Land [Member] Land Building [Member] Buildings Leasehold Improvements [Member] Leasehold improvements Software [Member] Software Equipment, Furniture and Other [Member] Equipment, furniture and other Equipment, furniture and other tangible property. Property, Plant and Equipment [Line Items] Property and equipment, net Software Development Costs Property, Plant and Equipment, Gross Property and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: accumulated depreciation and amortization Depreciation Depreciation expense on property and equipment Other Assets, Noncurrent [Abstract] Other assets Deferred Finance Costs, Noncurrent, Net Deferred debt issuance costs, net Other Assets, Miscellaneous, Noncurrent Other Accounts Payable and Accrued Liabilities, Current [Abstract] Accrued expenses and other liabilities Employee-related Liabilities, Current Compensation and benefits Billings in Excess of Cost, Current Billings in excess of costs and estimated earnings on uncompleted contracts Accrued Professional Fees, Current Professional and consulting fees Derivative Liabilities, Current Derivative financial instruments - current portion Accrued Sales Commission, Current Distributor and agent commissions Accrual for Taxes Other than Income Taxes, Current Taxes other than income taxes Interest Payable, Current Interest on indebtedness Other Accrued Liabilities, Current Other Other Liabilities, Noncurrent [Abstract] Other liabilities Unrecognized Tax Benefits Unrecognized tax benefits Other Sundry Liabilities, Noncurrent Other Schedule of Research and Development Assets Acquired Other than Through Business Combination [Table Text Block] Schedule of capitalized software development costs Reimbursement of Research and Development Expenses Reimbursements of other research and development expenses Other reimbursements of research and development expenses. Movement in Capitalized Computer Software, Net [Roll Forward] Capitalized software development costs Capitalized Computer Software, Additions Software development costs capitalized during the year Capitalized Computer Software, Amortization Amortization of capitalized software development costs Capitalized Computer Software Foreign Currency Translation and Other Foreign currency translation and other Foreign currency translation and other adjustments made to capitalized computer software costs during the period. Capitalized Computer Software, Net Capitalized software development costs, net, at the beginning of the period Capitalized software development costs, net, at the end of the period Capitalized software development costs, net Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of assets and liabilities measured at fair value on recurring basis Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [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, Inputs, Level 1 [Member] Level 1 Fair Value, Inputs, Level 2 [Member] Level 2 Fair Value, Inputs, Level 3 [Member] Level 3 Fair Value, Measurements, Recurring [Member] Recurring Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets and Liabilities Measured at Fair Value on Recurring Basis Assets, Fair Value Disclosure [Abstract] Assets: Cash and Cash Equivalents, Fair Value Disclosure Money market funds Foreign Currency Contract, Asset, Fair Value Disclosure Foreign currency forward contracts Assets, Fair Value Disclosure Total assets Liabilities, Fair Value Disclosure [Abstract] Liabilities: Foreign Currency Contracts, Liability, Fair Value Disclosure Foreign currency forward contracts Business Acquisition Contingent Consideration Fair Value Disclosure Contingent consideration- business combinations Fair value, as of the balance sheet date, of potential payments under the contingent consideration arrangement including cash and shares. Fair value of contingent consideration obligation Liabilities, Fair Value Disclosure Total liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Changes in the estimated fair value of liability for contingent consideration measured using significant unobservable inputs (Level 3) Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Fair value measurement at the beginning of the period Fair value measurement at the end of the period Fair value of contingent consideration obligation Fair value of remaining contingent consideration obligation Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Change in fair value recorded in operating expenses Expense (benefit) from change in fair value Increases in the fair value of contingent consideration obligation recorded in operating assets Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of components of accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Components of accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Foreign currency translation losses, net Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Unrealized gains on derivative financial instruments, net Net Gains (Losses) Recognized in Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Unrealized gains on available-for-sale marketable securities Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of recognized stock-based compensation expense on the consolidated statements of operations Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Summary of stock-based compensation expense by type of award Schedule of Employee Service Share-based Compensation Allocation of Recognized Period Costs Balance Sheet Classification [Table Text Block] Schedule of total stock-based compensation expense by classification Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet for the period. Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of weighted-average assumptions using a Black-Scholes option pricing model Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of stock option activity under the Plans Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Summary of information about stock options Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Summary of RSA and RSU activity under the Plans Stock Incentive Compensation Plan 1996 [Member] The 1996 Plan Represents information pertaining to the 1996 Stock Incentive Compensation Plan (the 1996 Plan) that provided for granting of awards of deferred stock, restricted stock awards ("RSAs") and restricted stock units ("RSUs"), incentive and non-qualified stock options, and stock appreciation rights to employees, directors, and consultants. Witness Systems Inc Amended and Restated Stock Incentive Plan [Member] The 1997 Plan Represents information pertaining to the Witness Systems, Inc. Amended and Restated Stock Incentive Plan, as amended (the 1997 Plan) that permitted the grant of awards of deferred stock, RSAs, and RSUs, incentive and non-qualified stock options, and stock appreciation rights to employees, directors, and consultants. New Hire 1997 Blue Pumpkin Inducement Grants [Member] The 1997 Plan Blue Pumpkin inducement grants Represents information pertaining to certain new-hire inducement grants made by an acquiree outside of the acquiree's shareholder-approved equity plans prior to May 25, 2007 (the 1997 Blue Pumpkin inducement grants), assumed by the entity in connection with the acquisition. Stock Incentive Compensation Plan 2004 [Member] The 2004 Plan Represents information pertaining to the 2004 Stock Incentive Compensation Plan (the 2004 Plan) that permits the grant of awards of deferred stock, RSAs and RSUs, incentive and non-qualified stock options, and stock appreciation rights to employees, directors, and consultants. Long-term Stock Incentive Plan 2010 [Member] The 2010 Plan 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"). Maximum [Member] Maximum Less than Restricted Stock Units (RSUs) [Member] RSUs Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock-Based Compensation Plans Share-based Compensation Arrangement by Share-based Payment Award Number of Shares Available for Grant Annual Increase Annual increase in the number of shares available for issuance Represents the annual increase in the number of shares available for issuance under the share-based compensation plan. Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Maximum Vesting period, maximum (in years) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of Shares Reserved for Grants Maximum number of shares approved Share-based Compensation Arrangement by Share-based Payment Award Options and Non Option Equity Instruments Outstanding Number Number of Shares Outstanding The number of shares reserved for issuance under stock option and non-option equity instrument agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options and instruments. Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Number of Shares Available for Grants Number of shares available Cost of Goods Sold [Member] Cost of revenue - product The allocation (or location) of expense to (in) cost of goods sold. Cost of Services [Member] Cost of revenue - service and support The allocation (or location) of expense to (in) cost of services. Research and Development Expense [Member] Research and development, net Selling General and Administrative Expense [Member] Selling, general and administrative The allocation (or location) of expense to (in) selling, general and administrative expense. Employee Stock Option [Member] Stock options Options to acquire shares of Verint common stock Restricted Stock and Restricted Stock Units RSU [Member] Restricted stock awards and restricted stock units 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. Phantom Share Units PSUs [Member] Phantom stock units Incentive compensation awarded to employees consisting of a stated number of phantom shares or units. Equity Classified Awards [Member] Equity-classified awards Represents the equity-classified awards under the share-based compensation plan. Liability Classified Awards [Member] Liability-classified awards Represents the liability-classified awards under the share-based compensation plan. Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Stock-based compensation expense Allocated Share-based Compensation Expense Stock-based compensation expense Compensation expense recognized Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Income tax benefits related to stock-based compensation (before consideration of valuation allowance) Allocated Share-based Compensation Expense, Net of Tax Stock-based compensation, net of taxes Share-based Compensation Effect on Earnings Per Share [Abstract] Impact on net income per common share attributable to Verint Systems Inc. Share-based Compensation Effect on Earnings Per Share, Basic Basic (in dollars per share) Represents the impact of share-based compensation on basic earnings per share computation. Share-based Compensation Effect on Earnings Per Share, Diluted Diluted (in dollars per share) Represents the impact of share-based compensation on diluted earnings per share computation. Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost Incremental compensation expense Additional stock-based compensation expense on modifications Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Employees Affected Number of employees affected Vovici Corporation [Member] Vovici Represents information pertaining to Vovici Corporation (Vovici). Vovici Corporation Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Weighted-average assumptions using Black-Scholes option pricing model Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected Life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend Yield (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock option activity Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock options outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award Options Weighted Average Exercise Price [Abstract] Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Beginning balance (in dollars per share) Ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Stock options exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Additional disclosures Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Aggregate intrinsic value for the options vested and exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Weighted-average remaining contractual life of options vested and exercisable (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Options vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted-average exercise price of options vested and expected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Aggregate intrinsic value of options vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted-average remaining contractual life of options vested and expected to vest (in years) Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Remaining weighted-average vesting period over which expense is expected to be recognized (in years) Range of Exercise Prices from Dollars 4.93 to 17.00 [Member] $4.93 - $17.00 Represents the range of exercise prices from 4.93 dollars to 17.00 dollars per share. Range of Exercise Prices from Dollars 31.78 to 31.78 [Member] $31.78 - $31.78 Represents the range of exercise prices from 31.78 dollars to 31.78 dollars per share. Range of Exercise Prices from Dollars 32.16 to 32.16 [Member] $32.16 - $32.16 Represents the range of exercise prices from 32.16 dollars to 32.16 dollars per share. Range of Exercise Prices from Dollars 34.40 to 34.40 [Member] $34.40 - $34.40 Represents the range of exercise prices from 34.40 dollars to 34.40 dollars per share. Range of Exercise Prices from Dollars 35.11 to 35.11 [Member] $35.11 - $35.11 Represents the range of exercise prices from 35.11 dollars to 35.11 dollars per share. Range of Exercise Prices from Dollars 37.99 to 37.99 [Member] $37.99 - $37.99 Represents the range of exercise prices from 37.99 dollars to 37.99 dollars per share. Range of Exercise Prices from Dollars 4.93 to 37.99 [Member] $4.93 - $37.99 Represents the range of exercise prices from 4.93 dollars to 37.99 dollars per share. Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Information about stock options by range of exercise prices Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Exercise price, low end of range (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Exercise price, high end of range (in dollars per share) Share-based Compensation Shares Authorized under Stock Option Plans Exercise Price Range Outstanding Options [Abstract] Options Outstanding Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Number of Options Outstanding (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Weighted-Average Remaining Contractual Term (in years) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price, Beginning Balance Weighted-Average Exercise Price (in dollars per share) Share-based Compensation Shares Authorized under Stock Option Plans Exercise Price Range Exercisable Options [Abstract] Options Exercisable Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Number of Options Exercisable (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Weighted-Average Exercise Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Intrinsic value of options exercised Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Cash received from the exercise of stock options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Tax benefits realized from stock options exercised Share-based Compensation Arrangement by Share-based Payment Award Options Vested in Period Fair Value Fair value of options vested Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. Restricted Stock [Member] RSAs Tandem Awards [Member] Tandem Awards Awards that contain two components - a share of deferred stock and a share of phantom stock. Employee Stock [Member] Employee Stock Purchase Plan Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] Summary of award activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted stock units outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Released (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award Equity Instruments Other than Options Weighted Average Grant Date Fair Value [Abstract] Weighted-Average Grant-Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Beginning balance (in dollars per share) Ending balance (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 Weighted-average grant date fair value (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 Released (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited 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, Additional Disclosures [Abstract] Additional disclosures Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value Total fair value of units vested Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards Total cash payments made upon vesting of stock units Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum Vesting period, minimum (in years) Share Price Stock price (in dollars per share) Price of a single share of a number of saleable stocks of a company. Share-based Compensation Arrangement by Share-based Payment Award, Determination of Shares Issuable Trailing Period of Average Price of Common Stock Trailing period of average price of common stock to determine the number of shares to be issued (in days) 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 Components Number of components Represents the number of components under equity-based compensation awards. Share-based Compensation Arrangement by Share-based Payment Award Number of Units Received by Recipient Number of units received by recipient Represents the number of units received by the recipient under equity-based compensation awards. Share-based Compensation Arrangement by Share-based Payment Award Number of Award Agreements Received by Recipient Number of award agreements received by recipient Represents the number of award agreements received by the recipient under equity-based compensation awards. Share-based Compensation Arrangement by Share-based Payment Award, Number of Components Structured to Vest Number of components structured to vest Represents the number of components structured to vest under equity-based compensation awards. Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Purchase price expressed as percentage of the market price of common stock Purchase price of common stock expressed as a percentage of its fair market value. Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] 401(k) Plan and Other Retirement Plans Defined Contribution Plan Requisite Age of Eligible Employees Minimum age required to participate in 401(k) plan (in years) Represents the minimum age required to participate in the entity's defined contribution retirement plan. Defined Contribution Plan Requisite Service Period of Eligible Employees Minimum service period to participate in 401(k) plan (in months) Represents the requisite service period to be completed by eligible employees to contribute under the defined contribution plans. Defined Contribution Plan Maximum Annual Contribution Per Employee Percent Employee contribution limit (as a percentage of compensation) Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. Defined Contribution Plan Employer Matching Contribution, Percent Company's matching contribution as percentage of employee's annual compensation Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. Defined Contribution Plan Employer Matching Contribution Per Employee Maximum Amount Maximum annual matched contribution per employee Maximum amount per employee for which the employer contributes a matching contribution to a defined contribution plan. Restructuring Charges [Abstract] Liability for Severance Pay Severance Costs Severance expenses Defined Contribution Plan, Cost Recognized Matching contribution expense Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of minimum future rentals under non-cancelable operating leases Schedule of Product Warranty Liability [Table Text Block] Summary of activity in warrant liability Operating Leases, Rent Expense, Net Rent expenses incurred under all operating leases Operating Leases, Future Minimum Payments Due [Abstract] Minimum future rentals under non-cancelable operating and capital leases Operating Leases, Future Minimum Payments Due, Current 2013 Operating Leases, Future Minimum Payments, Due in Two Years 2014 Operating Leases, Future Minimum Payments, Due in Three Years 2015 Operating Leases, Future Minimum Payments, Due in Four Years 2016 Operating Leases, Future Minimum Payments, Due in Five Years 2017 Operating Leases, Future Minimum Payments, Due Thereafter 2018 and thereafter Operating Leases, Future Minimum Payments Due Total Operating Leases, Rent Expense, Sublease Rentals Sublease rental payments Operating Leases Future Minimum Sublease Rentals [Abstract] Future sublease rental payments Operating Leases Future Minimum Sublease Rentals within One Year 2013 This element represents the total of minimum sublease rentals to be received under noncancelable subleases within one year of the balance sheet date. Operating Leases Future Minimum Sublease Rentals within Two Years 2014 This element represents the total of minimum sublease rentals to be received under noncancelable subleases within the two years following the balance sheet date. Operating Leases Future Minimum Sublease Rentals within Three Years 2015 This element represents the total of minimum sublease rentals to be received under noncancelable subleases within the three years following the balance sheet date. Operating Leases Future Minimum Sublease Rentals within Four Years 2016 This element represents the total of minimum sublease rentals to be received under noncancelable subleases within the four years following the balance sheet date. Operating Leases Future Minimum Sublease Rentals Thereafter Thereafter This element represents the total of minimum sublease rentals to be received under noncancelable subleases after the four years following the balance sheet date. Recorded Unconditional Purchase Obligation Payment Schedule [Abstract] Unconditional Purchase Obligations Recorded Unconditional Purchase Obligation Unconditional purchase obligation Recorded Unconditional Purchase Obligation Subsequent Fulfillment Period Unconditional purchase obligation, subsequent fulfillment period (in months) Represents the subsequent time period in which the unconditional purchase obligations will be fulfilled. Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] Warranty Liability Product Warranty Accrual Warranty liability, beginning of year Warranty liability, end of year Product Warranty Accrual, Warranties Issued Provision charged to expenses Product Warranty Accrual, Payments Warranty charges Product Warranty Accrual, Currency Translation, Increase (Decrease) Foreign currency translation and other Hardware [Member] Hardware Represents hardware products. Minimum [Member] Minimum Product Liability Contingency [Line Items] Warrant Liability Product Warranty Period Warranty period (in days/years) Represents the product warranty period under standard and extended warranty protection rights granted to customers. Series A Preferred Stock [Member] Preferred stock Series A Convertible Preferred Stock Temporary Equity Repurchase Price Due to Fundamental Change as Percentage of Liquidation Preference Percentage of liquidation preference at which the holders of the preferred stock would have the right to repurchase the preferred stock in event of fundamental change by the entity Represents the repurchase price as a percentage of the liquidation preference at which the holders of the preferred stock would have the right to repurchase the preferred stock in the event of a fundamental change by the entity. Off-Balance Sheet Risk [Abstract] Off-Balance Sheet Risk Voting Power Percentage of Majority Shareholder Considered for Agreement to Remain in Place Voting power percentage of Comverse required for business opportunities agreement to remain in place Represents the voting power percentage of the majority shareholder for the business opportunities agreement to remain in place. Schedule of Segment Reporting Information, by Segment [Table Text Block] Operating results by segment Segment Reporting Information [Line Items] Operating results by segment UNITED STATES [Member] United States UNITED KINGDOM [Member] United Kingdom ISRAEL [Member] Israel Operations in Israel GERMANY [Member] Germany CANADA [Member] Canada Revenues from External Customers and Long-Lived Assets [Line Items] Geographic Information Customer Concentration Risk [Member] Total revenue Concentration Risk [Line Items] Significant Customers Threshold for Disclosure Percentage Percentage required for qualification as major customer Threshold percentage which the entity uses for disclosure. Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of components of income before income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of provision for income taxes Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Reconciliation of the U.S. federal statutory rate to the entity's effective tax rate on income before income taxes Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of deferred tax assets and liabilities Summary of Valuation Allowance [Table Text Block] Schedule of valuation allowance Summary of Income Tax Contingencies [Table Text Block] Schedule of aggregate changes in the balance of gross unrecognized tax benefits Summary of Income Tax Examinations [Table Text Block] Schedule of income tax returns under examination in major tax jurisdictions Income (Loss) from Continuing Operations before Income Taxes, Domestic Domestic Income (Loss) from Continuing Operations before Income Taxes, Foreign Foreign Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Current income tax provision (benefit): Current Federal Tax Expense (Benefit) Federal Current State and Local Tax Expense (Benefit) State Current Foreign Tax Expense (Benefit) Foreign Current Income Tax Expense (Benefit) Total current income tax provision Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Deferred income tax provision (benefit): Deferred Federal Income Tax Expense (Benefit) Federal Deferred State and Local Income Tax Expense (Benefit) State Deferred Foreign Income Tax Expense (Benefit) Foreign Income Tax Expense Benefit and Effective Income Tax Rate Continuing Operations Income Tax and Tax Rate Reconciliation [Abstract] Reconciliation of the U.S. federal statutory rate to the entity's effective tax rate on income before income taxes Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate U.S. federal statutory income tax rate (as a percent) Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate Income tax provision (benefit) at the U.S. federal statutory rate Income Tax Reconciliation, State and Local Income Taxes State tax provision Income Tax Reconciliation, Foreign Income Tax Rate Differential Foreign rate differential Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance Valuation allowance Income Tax Reconciliation Nondeductible Expense Share-based Compensation and Other Compensation Costs Stock-based and other compensation The portion of the difference between total income tax expense or benefit as reported in the income statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to differences in the deductibility of incentive stock options, other equity-based compensation costs and other compensation costs in accordance with generally accepted accounting principles and enacted tax laws. Income Tax Reconciliation, Nondeductible Expense Non-deductible expenses Income Tax Reconciliation, Tax Credits Tax credits Income Tax Reconciliation, Tax Contingencies Tax contingencies Income Tax Reconciliation, Change in Enacted Tax Rate Change in tax rates Income Tax Reconciliation, Repatriation of Foreign Earnings U.S. tax effects of foreign operations Income Tax Reconciliation, Other Adjustments Other, net Effective Income Tax Rate, Continuing Operations Effective income tax rate (as a percent) Exemption Period for Income Taxes Attributable to Approved Enterprise Period of tax exemption for income attributable to approved enterprise (in years) Represents the period of tax exemption for income attributable to an approved enterprise. Effective Income Tax Rate Decrease Due to Tax Incentive Reduction in effective tax rates resulting from tax incentives (as a percent) Represents the reduction in effective tax rates resulting from tax incentives. Deferred Tax Assets, Net [Abstract] Deferred tax assets: Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Allowance for doubtful accounts Deferred Tax Assets, Deferred Income Deferred revenue Deferred Tax Assets, Inventory Inventory Deferred Tax Assets Property, Plant and Equipment Depreciation of property and equipment Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. Deferred Tax Assets, Operating Loss Carryforwards Loss carryforwards Deferred Tax Assets, Tax Credit Carryforwards Tax credits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Stock-based and other compensation Deferred Tax Assets Deferred Expense Capitalized Research and Development Costs Capitalized research and development expenses Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from capitalized research and development costs. Deferred Tax Assets, Derivative Instruments Fair value of derivatives Deferred Tax Assets Other Long-term Liabilities Other long-term liabilities Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other long-term liabilities. Deferred Tax Assets, Other Other, net Deferred Tax Assets, Gross Total deferred tax assets Deferred Tax Liabilities [Abstract] Deferred tax liabilities: Deferred Tax Liabilities, Goodwill and Intangible Assets Goodwill and other intangible assets Deferred Tax Liabilities Total deferred tax liabilities Deferred Tax Assets, Valuation Allowance Valuation allowance Deferred Tax Assets (Liabilities), Net [Abstract] Recorded as: State and Local Jurisdiction [Member] State Foreign Country [Member] Foreign Operating Loss Carryforwards [Line Items] Net operating loss carryforwards Operating Loss Carryforwards NOLs Operating Loss Carry Forwards Subject to Expiration NOL carryforwards expiring in various future years The amount of net operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws, subject to expiration. Tax Credit Carryforward, Amount U.S. federal, state and foreign tax credit carryforwards Tax Credit Carryforward Amount Indefinite Carryforward Tax credit carryforwards, indefinite carryforward The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws that may be carried forward indefinitely. Tax Credit Carryforward Amount Subject to Expiration Tax credit carryforwards expiring in various future years The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws, subject to expiration. Movement in Valuation Allowances and Reserves [Roll Forward] Recorded valuation allowance Activity in the allowance for doubtful accounts Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Aggregate changes in balance of gross unrecognized tax benefits Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions Increases related to tax positions taken during the current year Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities Reduction for settlements with taxing authorities Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations Lapses of statutes of limitation Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits that, if recognized would impact effective income tax rate Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Interest and penalties recorded related to uncertain tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Accrued liability for interest and penalties Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Amount of unrecognized tax benefits that could reasonably decrease in next twelve months Order or Production Backlog [Member] Backlog Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of fair values of derivative financial instruments Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of the effects of derivative financial instruments designated as cash flow hedging instruments Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of losses recognized on derivative financial instruments not designated as hedging instruments Foreign Exchange Forward [Member] Foreign currency forward contracts Designated as Hedging Instrument [Member] Derivative designated as hedging instruments Not Designated as Hedging Instrument [Member] Derivative not designated as hedging instruments Derivatives, Fair Value [Line Items] Fair Values of Derivative Financial Instruments Notional Amount of Derivatives Notional amounts of derivative financial instruments Derivative Asset, Fair Value, Gross Asset Assets, Fair Value Derivative Liability, Fair Value, Gross Liability Liabilities, Fair Value Interest Rate Swap [Member] Interest rate swap agreement Foreign currency forward contracts Cash Flow Hedging [Member] Cash flow hedging Derivative Instruments, Gain (Loss) [Line Items] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Net Gains Reclassified from Other Comprehensive Loss into the Condensed Consolidated Statements of Operations Derivative Instruments, Loss Recognized in Income Losses recognized Basis of Accounting Policy [Policy Text Block] Basis of Presentation Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Use of Estimates, Policy [Policy Text Block] Use of Estimates Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash and Bank Time Deposits Investment, Policy [Policy Text Block] Investments Inventory, Policy [Policy Text Block] Inventories Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment, net Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill, Other Acquired Intangible Assets, and Long-lived Assets Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Values of Financial Instruments Derivatives, Policy [Policy Text Block] Derivative Financial Instruments Debt, Policy [Policy Text Block] Long-term Debt Segment Reporting, Policy [Policy Text Block] Segment Reporting Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Cost of Sales, Policy [Policy Text Block] Cost of Revenue Research and Development Expense, Policy [Policy Text Block] Research and Development, net Software to be Sold, Leased, or Otherwise Marketed, Policy [Policy Text Block] Software Development Costs Income Tax, Policy [Policy Text Block] Income Taxes Foreign Currency Transactions and Translations Policy [Policy Text Block] Functional Currency and Foreign Currency Transaction Gains and Losses Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-Based Compensation Earnings Per Share, Policy [Policy Text Block] Net Income Per Common Share Attributable to Verint Systems Inc. Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Equity interest in a joint venture (as a percent) Cost Method Investment Ownership Percentage Maximum ownership interest in cost method investments (as a percent) The percentage of ownership of common stock or equity participation in the investee accounted for under the cost method of accounting. Prior Period Reclassification Adjustment [Abstract] Reclassifications Prior Period Reclassification Adjustment Reclassification of cost of service and support revenue which had previously been presented as a component of cost of product revenue Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents Bank Time Deposits [Member] Restricted bank time deposits Restricted Cash and Cash Equivalents Items [Line Items] Restricted Cash and Bank Time Deposits Investments [Abstract] Investments Contingent Classification of Investments as Short-term Investments Maturity Period Minimum Available-for-sale securities stated maturities period, short-term classification if securities are highly marketable and readily convertible into cash for current operations, stated maturities period greater than (in years) Available-for-sale securities with stated maturities greater than this period are classified as short-term if the securities are highly marketable and readily convertible into cash for current operations. Accounts Receivable, Net [Abstract] Accounts Receivable, Net Allowance for Doubtful Accounts, Current [Member] Allowance for Doubtful Accounts Valuation Allowances and Reserves, Charged to Cost and Expense Provisions charged to expenses (Provision for) benefit from income taxes Valuation Allowances and Reserves, Deductions Amounts written off Valuation Allowances and Reserves, Adjustments Other Cumulative translation adjustment Machinery and Equipment [Member] Property and equipment, other than buildings and leasehold improvements Furniture and Fixtures [Member] Furniture and fixtures Property, Plant and Equipment, Useful Life, Minimum Estimated useful lives, low end of range (in years) Property, Plant and Equipment, Useful Life, Maximum Estimated useful lives, high end of range (in years) Goodwill and Intangible Assets [Abstract] Goodwill, Other Acquired Intangible Assets, and Long-lived Assets Reporting Segments Number Number of operating segments and reportable segments The number of reportable segments of the entity. Number of operating segments Revenue Recognition [Abstract] Revenue Recognition Number of Categories in which Revenue is Derived and Reported Number of categories in which revenue is derived and reported Represents the number of categories in which revenue is derived and reported. Software Maintenance, Period Term of software maintenance period over which PCS revenue is recognized (in years) Represents the term of the software maintenance period over which the related post-contract customer support (PCS) is recognized. Foreign Currency Transaction Gain (Loss), before Tax [Abstract] Functional Currency and Foreign Currency Transaction Gains and Losses Valuation and Qualifying Accounts Disclosure [Line Items] Allowance for Doubtful Accounts Recorded valuation allowance on deferred tax assets Research and Development Expense Gross Represents the gross amount of research and development costs incurred before netting of any grants or reimbursements received. Gross research and development expenses Revenue from Grants Grants from OCS recorded as a reduction in gross research and development expenses Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Segment [Text Block] Schedule of net acquisition-related intangible assets by reportable segment Tabular disclosure of acquired finite-lived and indefinite-lived intangible assets by segment. Developed Technology Rights [Member] Acquired technology Developed technology Depreciation [Abstract] Depreciation expense Foreign Currency Transaction Gain (Loss), before Tax Foreign currency gains (losses), net Net foreign currency transaction gains (losses) Derivative, Gain (Loss) on Derivative, Net Losses on derivative financial instruments, net Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of calculation of basic and diluted net income per common share attributable to Verint Systems Inc. Earnings Per Share, Basic and Diluted [Abstract] Net income (loss) per common share attributable to Verint Systems Inc. Contingent Consideration [Member] Represents potential amounts payable by the entity as contingent consideration in connection with a business acquisition. Liability for contingent consideration Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Liability for contingent consideration measured using significant unobservable inputs (Level 3) Contingent consideration obligation Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Contingent consideration liability recorded for business combinations Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Components of income before income taxes Components of Deferred Tax Assets and Liabilities [Abstract] Deferred tax assets and liabilities Unrecognized Tax Benefit Increase (Decrease) Resulting from Foreign Currency Exchange Rate Fluctuations The amount of increases or decreases in unrecognized tax benefits resulting from foreign currency exchange rate fluctuations. Increases (decreases) related to foreign currency exchange rate fluctuations Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total other comprehensive income attributable to Verint Systems Inc. Comprehensive income attributable to Verint Systems Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to noncontrolling interest Operating Leases Future Minimum Payments Due New Lease Agreement Aggregate minimum lease commitment over the term of the new lease Represents the aggregate minimum lease commitment of the new lease agreement which is included in the total future minimum lease payments. Operating Leases, Rent Expense, Net [Abstract] Sublease rental payments 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 Stock bonus program Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Modifications Deferred Compensation Liability, Current and Noncurrent Total accrued liability Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Discount from market price (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Period of employment to be eligible to participate (in months) Software Product [Member] Software Represents software products. Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions Increases related to tax positions taken during prior years Communications and Cyber Intelligence Solutions [Member] Communications Intelligence Represents the Communications and Cyber Intelligence Solutions reportable segment of the entity. Comverse Incorporation [Member] Comverse Inc., a subsidiary of Comverse Technnology Inc. ("Comverse") Represents the information pertaining to Comverse Inc., a subsidiary of Comverse Technology Inc. ("Comverse"). Comverse Inc., a subsidiary of Comverse Related Party Transaction [Line Items] Relationship with Comverse and its Other Subsidiaries Related Party Transaction, Expenses from Transactions with Related Party Expenses recorded for services provided by related parties Related Party Transaction Tax Sharing Agreement Period after Expiration of Applicable Statute of Limitations Period after expiration of applicable statute of limitations, for which the tax sharing agreement continues to be in effect (in days) Represents the period after expiration of applicable statute of limitations, for which the tax sharing agreement continues to be in effect. Related Party Transaction, Revenues from Transactions with Related Party Revenue from related parties Temporary Equity [Line Items] Preferred Stock Dividends, Conversion, and Redemption CONVERTIBLE PREFERRED STOCK Comparability of Prior Year Financial Data, Policy [Policy Text Block] Reclassifications Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] Summary of activity in allowance for doubtful accounts Valuation Allowances and Reserves, Balance Balance at beginning of year Balance at end of year Balance at beginning of year Balance at end of year Segment Reporting Segment [Abstract] Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Property and equipment, net by geographic area Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] Summary of revenue from unaffiliated customers by geographic area Segment, Geographical, Groups of Countries, Group One [Member] Other Cash Equivalents Maximum Original Maturity Period Maximum original maturity period of cash equivalents (in months) Represents the maximum original maturity period for the entity's cash equivalents. Restricted Bank Time Deposits Original Maturity Period Original maturity period of restricted cash equivalents (in days) Represents the original maturity period for the entity's bank time deposits which are restricted as to withdrawal or usage. Software Products Estimated Economic Lives Low End of Range Estimated economic lives of software products, low end of range (in years) Represents the low end of the range of estimated economic lives of software products. Software Products Estimated Economic Lives High End of Range Estimated economic lives of software products, high end of range (in years) Represents the high end of the range of estimated economic lives of software products. Other Nonoperating Income Expense Miscellaneous Other, net 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. Business Combination Stock Options Converted Number of stock options to purchase common stock converted into stock options of the company Represents the stock options issued by the entity in exchange of the outstanding stock options of the acquiree entity at the time of business acquisition. Impairment Test Number of Primary Approaches to Assess Fair Value Number of primary approaches to assess fair value in impairment test Represents the number of primary approaches to assess fair value in impairment test. Liability for Uncertain Tax Positions, Noncurrent Unrecognized tax benefits, including interest and penalties Original Registration Rights Agreement Number of Demand Registration Rights Exercised Number of demand registration rights exercised under the Original Registration Rights Agreement Represents the number of demand registration rights exercised under the original registration rights agreement. Related Party Transaction, Percentage Charged in Addition to Actual Expenses Incurred for Services Provided by Related Party Percentage charged in addition to actual expenditure incurred for services provided by related party Represents the percentage charged in addition to actual expenditures incurred for services provides by a related party. Class of Stock [Axis] Class of Stock [Domain] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions, by Related Party [Axis] Related Party [Domain] Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Segment [Domain] Range [Axis] Range [Domain] Product Liability Contingency [Table] Products and Services [Axis] Products and Services [Domain] Acquired Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Schedule of Goodwill [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Concentration Risk [Table] Concentration Risk by Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk by Type [Axis] Concentration Risk Type [Domain] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Schedule of Restricted Cash and Cash Equivalents [Table] Restricted Cash and Cash Equivalents, Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents, Cash and Cash Equivalents [Domain] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Statement, Geographical [Axis] Segment, Geographical [Domain] Temporary Equity, by Class of Stock [Table] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value by Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Domain] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Hedging Designation [Axis] Hedging Designation [Domain] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Domain] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value by Liability Class [Axis] Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain] Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Noncontrolling equity interest in joint venture (as a percent) Supplemental Unemployment Benefits, Severance Benefits Obligation for severance compensation Trade and Other Accounts Receivable, Policy [Policy Text Block] Accounts Receivable, Net Schedule of Variable Interest Entities [Table] Variable Interest Entity, Primary Beneficiary [Member] Joint venture, variable interest entity in which entity is primary beneficiary Variable Interest Entity [Line Items] Basis of Presentation Costs in Excess of Billings on Uncompleted Contracts or Programs Expected to be Collected within One Year Costs in excess of billings and estimated earnings Accounting Standards Update 2009-13 [Member] Multiple-deliverable revenue arrangements New Accounting Pronouncements or Change in Accounting Principle [Line Items] Revenue Recognition New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Revenue Recognition of additional revenue New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results Recognition of additional income before provision for income taxes Software Development [Member] Capitalized software development costs Revenue Recognition Multiple Deliverable Arrangements Allocation to Specific Unit of Accounting Number of Elements Unable to Establish Vendor Specific Objective Evidence Minimum for Use of Available Fair Value Indicators The minimum number of elements for multiple-element software arrangements for which the entity uses various available indicators of fair value and judgment to classify the arrangement's revenue into product revenue and service revenue when it is unable to establish vendor-specific objective evidence (VSOE) and where such arrangements are recognized ratably. Number of elements for multiple-element software arrangements for which various available indicators of fair value and judgment are used to classify the arrangement's revenue into product revenue and service revenue, VSOE cannot be established and where such arrangements are recognized ratably, minimum Property, Plant and Equipment, Useful Life, Average Amortization period (in years) Dilutive Securities, Effect on Basic Earnings Per Share, Other Dilutive effect of dividends on preferred stock Income Tax Reconciliation, Tax Holidays Tax incentive Income Tax Holiday [Line Items] Israeli Law for Encouragement of Capital Investments, 1959 Period of Reduced Income Tax Rate for Income Attributable to Approved Enterprise Represents the period of reduced income tax rate attributable to an approved enterprise. Period of reduced income tax rate attributable to approved enterprise (in years) Reduced Income Tax Rate for Income Attributable to Approved Enterprise Represents the reduced income tax rate for income attributable to an approved enterprise. Reduced income tax rate for income attributable to approved enterprise (as a percent) Deferred Tax Liabilities, Deferred Expense, Capitalized Inventory Costs Deferred cost of revenue Deferred Tax Liabilities, Deferred Expense Prepaid expenses Deferred Tax Assets (Liabilities), Net Net deferred tax assets Valuation Allowance of Deferred Tax Assets [Member] Valuation allowance, deferred tax assets Valuation Allowances and Reserves, Period Increase (Decrease) Decrease in valuation allowance Deferred Tax Liability Not Recognized Undistributed Foreign Earnings The amount as of the balance sheet date of undistributed foreign earnings on which the entity has not provided deferred taxes as these amounts are considered to be indefinitely reinvested. Deferred tax not provided on excess of financial reporting over tax basis of investments in certain foreign subsidiaries Internal Revenue Service (IRS) [Member] U.S. federal Estimate of Fair Value, Fair Value Disclosure [Member] Estimated fair value Medium-term Notes [Member] Term loan borrowings Term loan Prior Term Loan Facility [Member] Prior term loan Represents the term loan facility under the prior credit agreement. Prior term loan facility Long-term Debt, Fair Value Long-term debt Derivative, Lower Remaining Maturity Range Term to maturity of derivative contracts is generally this period (in months) Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Foreign currency forward contracts underlying net gains recorded in accumulated other comprehensive loss expected to be reclassified into earnings within the next twelve months Majority Shareholder [Member] Comverse Comverse Technology, Inc. (Comverse) Temporary Equity Stock Issued During Period Shares New Issues Number of shares of new stock classified as temporary equity issued during the period. Shares issued Temporary Equity, Stock Issued During Period, Value, New Issues Aggregate purchase price Temporary Equity Issuance, Cost Direct issuance cost Represents the cost incurred directly with the issuance of the stock classified as temporary equity. Temporary Equity Purchase Price Per Share Represents the purchase price per share of temporary equity issued. Purchase price per share Temporary Equity, Liquidation Preference Per Share Initial liquidation preference per share purchase price Additional Temporary Equity Shares Conversion to Common Stock Due to Fundamental Change Additional shares of common stock issuable for every share of preferred stock in the event of a fundamental change Represents an increase in the conversion rate in the event of a fundamental change, which provides for additional common stock shares to be issued to the holders of preferred stock. Temporary Equity Cumulative Undeclared Dividends Cumulative undeclared dividends Represents the cumulative undeclared dividends of preferred stock classified as temporary equity. Embedded Derivative, Fair Value of Embedded Derivative Asset Initial fair value of embedded derivative financial instrument Temporary Equity Fair Value Amount Initial fair value Represents the fair value as of the balance sheet date of the entity's preferred stock which is classified as temporary equity. Preferred Stock Dividend Implicit, Percentage The preferred stock dividend rate that was used to calculate the fair value of the embedded derivative financial instrument. Reduced interest rate used to calculate the fair value of the embedded derivative financial instrument (as a percent) Preferred Stock, Dividend Rate, Percentage Stated dividend rate (as a percent) Embedded Derivative Fair Value of Embedded Derivative Asset Reclassified, Amount Fair value of derivative asset, reclassified amount Represents the reclassified amount of the fair value of the embedded derivative or group of embedded derivatives classified as an asset. Debt Instrument Change in Basis Spread on Variable Rate Minimum reduction in basis points on variable term loan (as a percent) Represents the decrease in percentage points which are added to the reference rate to compute the initial interest rate on the debt. Dividends Common Stock Value as Percentage of Volume of Weighted Average Price of Common Stock Represents the dividend in the form of common stock , when and if declared, would be valued as a percentage of the volume of weighted-average price of the entity's common stock. Percentage of volume of weighted average price of common stock, when and if declared Dividend Common Stock Number of Consecutive Trading Days Represents the number of consecutive trading days used to determine the value of common stock used for dividends. Number of consecutive trading days used to determine the value of the common stock dividend Convertible Preferred Stock, Shares Issued upon Conversion Initial conversion rate of common stock for each share of preferred stock Temporary Equity Initial Conversion, Price Preferred stock conversion price per share Represents the initial conversion price per share of preferred stock. Temporary Equity Shares Conversion to Common Stock Represents the number of shares of common stock in which the preferred stock is convertible. Number of shares of common stock in which the preferred stock is convertible Convertible Preferred Stock Closing Price as a Percentage of Conversion Price Represents the closing price as a percentage of the conversion price that must be equal to or greater than for right to convert the preferred stock to become exercisable. Closing price as a percentage of the conversion price that must be equal to or greater than for right to convert the preferred stock to become exercisable Schedule of Long-term Debt Instruments [Table Text Block] Summary of long-term debt Schedule of Maturities of Long-term Debt [Table Text Block] Summary of future scheduled principal payments on term loan 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. Credit Agreement Line of Credit [Member] Revolving credit facility Eurodollar Loans [Member] Eurodollar loans Represents the Eurodollar loans under the Credit Agreement. Base Rate loans Base Rate Loans [Member] Represents the Base Rate loans under the Credit Agreement. Notes Payable, Other Payables [Member] Other debt Prior Credit Agreement [Member] Prior Credit Agreement Represents the prior credit agreement which consists of a term loan facility and a revolving line of credit. Prior Line of Credit [Member] Represents the line of credit facility under the prior credit agreement. Prior revolving line of credit Prior Credit and Credit Agreement [Member] Prior Credit Agreement and Credit Agreement Details pertaining to the prior credit agreement and new credit agreement. 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] Identification of the reference rate that is used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base Adjusted LIBO [Member] Adjusted LIBO Rate Represents the adjusted LIBO rate used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base [Member] Base Rate Represents the base rate used to calculate the variable interest rate of the debt instrument. Debt Instrument Variable Rate Base Federal Funds [Member] Federal Funds Effective Rate Represents the federal funds effective rate used to calculate the variable rate of the debt instrument. Corporate Credit Quality Indicator [Member] Corporate ratings of at least BB- and Ba3 or better Line of Credit Facility Covenant Period [Axis] Information about the line of credit facility covenant period. Line of Credit Facility Covenant Period [Domain] The line of credit facility covenant period. Line of Credit Facility Covenant Period Until July 2013 [Member] Represents the covenant period until July 31, 2013. Until July 31, 2013 Line of Credit Facility Covenant Period July 2013 Thereafter [Member] Represents the covenant period after July 31, 2013. After July 31, 2013 Communications Intelligence Acquisition [Member] Represents details pertaining to an acquisition of a privately held provider of communication intelligence solutions, data retention services, and network performance management, based in the Americas region. Communications Intelligence, acquisition Debt Instrument [Line Items] LONG-TERM DEBT Long-term Debt, Gross Gross borrowings Total Debt Instrument, Unamortized Discount Unamortized debt discount Long-term Debt. Total debt Line of Credit Facility, Current Borrowing Capacity Current borrowing capacity Debt Instrument Term Represents the term of the debt instrument. Term of credit agreement (in years) Debt Instrument, Decrease, Repayments Payment of outstanding term loans Debt Instrument Discount Rate Percentage The percentage discount at which the debt was issued. Term loan discount (as a percent) Proceeds from Issuance of Debt Net term loan proceeds Debt Instrument, Description of Variable Rate Basis Variable rate basis Debt Instrument, Basis Spread on Variable Rate Interest rate margin (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. Rate used to calculate reference rate (as a percent) Deferred Finance Costs, Gross Deferred debt issuance costs Deferred Finance Costs, Net Unamortized deferred costs Debt Instrument Fees to Secure Waivers for Business Combinations Represents the fees to secure waivers of certain provisions to structure the financing for business combinations. Fees to secure waivers of certain provisions to structure the financing for business combinations Debt Instrument Fees to Secure Waivers for Business Combinations Number Number of business combinations for which fees were incurred to secure waivers of certain provisions to structure financing in a favorable manner Represents the number of business combinations for which fees were incurred to secure waivers of certain provisions to structure financing in a favorable manner. Debt Related Commitment Fees and Debt Issuance Costs Debt fees expensed Debt Instrument, Interest Rate at Period End Interest rate at end of period (as a percent) Debt Instrument, Interest Rate, Effective Percentage Effective interest rate (as a percent) Interest Expense, Debt Interest expense Amortization of Financing Costs Amortization of deferred debt issuance costs reported within interest expense Additional Amortization of Financing Costs Associated with Unscheduled Principal Repayments Represents additional amortization of financing costs associated with unscheduled principal repayments. Additional amortization associated with unscheduled principal repayments Amortization of Debt Discount (Premium) Amortization of original issuance term loan discount reported within interest expense Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Commitment fee on undrawn portion (as a percent) Debt Instrument, Periodic Payment, Principal Principal payments required per quarter Debt Instrument Prepayment Premium Percentage Applicable in Certain Events Represents the prepayment premium applicable in the event of a Re-pricing Transaction (as defined in the Credit Agreement). Prepayment premium applicable in the event of a Re-pricing Transaction (as a percent) Debt Instrument Prepayment Adjustment Number of Consecutive Scheduled Principal Payments Represents the number of consecutive scheduled principal payments in which prepayments are applied first. Number of consecutive scheduled principal payments to which prepayments are applied first Debt Instrument Covenant Consolidated Leverage Ratio Maximum Numerator Represents the numerator for the maximum ratio of consolidated indebtedness to consolidated EBITDA permitted under the debt covenants. Numerator for the ratio of Consolidated Total Debt to Consolidated EBITDA, maximum Debt Instrument Covenant Consolidated Leverage Ratio Maximum Denominator Represents the denominator for the maximum ratio of consolidated indebtedness to consolidated EBITDA permitted under the debt covenants. Denominator for the ratio of Consolidated Total Debt to Consolidated EBITDA, maximum Maturities of Long-term Debt [Abstract] Future scheduled principal payments on term loan Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2013 (Remainder of year) Long-term Debt, Maturities, Repayments of Principal in Year Two 2014 Long-term Debt, Maturities, Repayments of Principal in Year Three 2015 Long-term Debt, Maturities, Repayments of Principal in Year Four 2016 Long-term Debt, Maturities, Repayments of Principal in Year Five 2017 Long-term Debt, Maturities, Repayments of Principal after Year Five 2018 and thereafter Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt Development bank and government debt assumed Bank debt Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Other Financial Instruments Concentration Risk Credit Risk [Policy Text Block] Disclosure of accounting policy for credit risk. Concentrations of Credit Risk New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Recent Accounting Pronouncements Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument, Name [Domain] Payment and Performance Risk (Credit Rating) [Axis] Credit Rating [Domain] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entity, Classification [Domain] Income Tax Holiday [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Disclosure Item Amounts [Domain] 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. Unrealized gains on derivative financial instruments, net Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Unrealized gains on available-for-sale securities, net Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Letters of Credit and Surety Bonds Outstanding Amount Represents the outstanding amount as of the balance sheet date for letters of credit and surety bonds. Outstanding letters of credit and surety bonds Amortization of Acquired Intangible Assets Total amortization expense for acquisition-related intangible assets Amortization of acquired intangible assets Operating Segments [Member] Total operating segments Unallocated Amount to Segment [Member] Unallocated Segment Reporting Information, Revenue for Reportable Segment Segment revenue Segment Reporting Information, Operating Income (Loss) [Abstract] Segment contribution: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Reconciliation of segment contribution to operating income Other Cost and Expense, Operating Other unallocated expenses Sales [Member] Revenue Co-venturer [Member] Noncontrolling shareholder Common Stock, Shares Maximum Available-for-sale in Public Offering Represents the maximum number of shares available for sale as part of the public offering. Share available for issuance as part of public offering Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing capacity STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS Compensation Related Costs, General [Text Block] Summary of key information for the Plans Schedule of Share-based Compensation, Activity [Table Text Block] Summary of key data points for exercised options Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block] Summary of phantom stock unit activity Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block] Plan Name [Domain] Equity-based compensation plans and award types, including multiple equity-based payment arrangements. Plan Name [Axis] Pertinent data describing and reflecting required disclosures pertaining to an equity-based compensation arrangement, by plan. Award Type [Axis] Information by award type pertaining to equity-based compensation. Share-based Compensation Arrangements by Share-based Payment Award Award Type [Domain] Equity-based compensation plans, including multiple equity-based payment arrangements. Performance Shares [Member] Performance based RSUs Shares or units awarded to employees for meeting certain performance targets. Witness Systems Inc [Member] Witness Systems, Inc. Represents information pertaining to Witness Systems, Inc. Share-based Compensation Arrangement by Share-based Payment Award Award Period for Granting Awards Number of years awards can be granted after plan approval by the board of directors Represents the number of years awards can be granted after a plan is approved by the board of directors. Term of award (in years) Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date Stock Bonus [Member] Stock Bonus Plan The portion of bonus paid to eligible employees in the form of fully vested shares of common stock. Maximum percentage of salary an employee may use to purchase stock under the ESPP Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent Total accrued liability Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Total Share-based Liabilities Paid Total cash payments made upon vesting of stock units Schedule of Purchase Price Allocation [Table Text Block] Schedule of components and allocations of purchase prices Business Acquisition, Pro Forma Information [Table Text Block] Schedule of unaudited pro forma financial information as if Vovici and GMT had been acquired on February 1, 2011 Global Management Technologies [Member] Global Management Technologies Represents information pertaining to Global Management Technologies (GMT). Other Business Combinations Other Series of Individually Immaterial Business Acquisitions [Member] BUSINESS COMBINATIONS Business Acquisition [Line Items] Business Acquisition, Cost of Acquired Entity, Purchase Price Combined consideration Total purchase price Total consideration Business Acquisition, Cost of Acquired Entity, Cash Paid Cash paid at closing Cash consideration Business Combination, Consideration Transferred, Other Bank debt, repaid at closing Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Number of stock options to purchase Vovici common stock converted into stock options of the company Business Acquisition, Equity Interest Issued or Issuable, Value Assigned Fair value of stock options Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Costs Compensation for pre-acquisition services included in the consideration transferred Business Acquisition, Contingent Consideration, at Fair Value Fair value of contingent obligation Fair value of contingent consideration Business Acquisition, Contingent Consideration [Member] Potential payments under the contingent consideration arrangement including cash and shares. Contingent consideration Business Acquisition Purchase Price, Allocation Methodology, Estimated Profit Margin Represents the estimated profit margin used to allocate purchase price to support obligation liabilities assumed, based upon the estimated costs to fulfill the support obligation plus a normal profit margin. Estimated profit margin (as a percent) Deferred Revenue Deferred revenue, carrying value at acquisition date Business Acquisition, Purchase Price Allocation, Current Liabilities, Deferred Revenue Deferred revenue Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Revenue attributable to the acquired entity Business Acquisition, Cost of Acquired Entity, Transaction Costs Transaction and related costs Business Acquisition, Purchase Price Allocation, Goodwill Amount Goodwill Business Acquisition, Preacquisition Contingency, Amount Liabilities recorded Business Acquisition, Purchase Price Allocation, Current Liabilities Preacquisition Contingency Accrual Current portion of the amount of acquisition cost of a business combination allocated to preacquisition contingencies other than contingencies associated with income taxes. Current liabilities associated with preacquisition business activities Business Acquisition, Current Liabilities, Preacquisition Contingency Accrual Current portion as of the balance sheet date of the amount of preacquisition contingencies other than contingencies associated with income taxes. Current liabilities associated with preacquisition business activities Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities Preacquisition Contingency Accrual Noncurrent portion of the amount of acquisition cost of a business combination allocated to preacquisition contingencies other than contingencies associated with income taxes. Long-term liabilities associated with preacquisition business activities Long-term liabilities associated with preacquisition business activities Business Acquisition, Noncurrent Liabilities, Preacquisition Contingency Accrual Noncurrent portion as of the balance sheet date of the amount of preacquisition contingencies other than contingencies associated with income taxes. Trademarks and Trade Names [Member] Trademarks and trade names The rights acquired through registration of a trademark or trade name to gain or protect exclusive use of a business name, symbol or other device or style. Other identifiable intangible assets Other Intangible Assets [Member] Business Acquisition, Cost of Acquired Entity, Purchase Price [Abstract] Components of Purchase Price Business Acquisition, Cost of Acquired Entity, Liabilities Incurred Fair value of contingent obligation Fair value of contingent consideration Business Acquisition, Cost of Acquired Entity, Other Noncash Consideration Other purchase price adjustments Business Acquisition, Purchase Price Allocation [Abstract] Allocation of Purchase Price Business Acquisition, Purchase Price Allocation, Tangible Assets [Abstract] Net tangible assets (liabilities): Business Acquisition, Purchase Price Allocation, Current Assets, Receivables Accounts receivable Business Acquisition, Purchase Price Allocation, Current Assets, Prepaid Expense and Other Assets Other current assets Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets Other 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. Business Acquisition, Purchase Price Allocation, Deferred Income Taxes, Asset (Liability), Net Deferred income taxes - current and long-term Business Acquisition, Purchase Price Allocation, Net Tangible Assets Net tangible assets (liabilities) Consideration allocated to tangible net assets (liabilities) Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Identifiable intangible assets Consideration allocated to identifiable intangible assets Acquired Finite-lived Intangible Asset, Weighted Average Useful Life Weighted-average estimated useful life of all finite-lived identifiable intangible assets (in years) Iontas Limited [Member] Iontas Limited Represents information pertaining to Iontas Limited (Iontas). Certain Acquired Technology and Other Assets December 2010 [Member] December 2010 Business Combination - technology and other assets Represents the December 2010 acquisition of certain technology and other assets. Vovici Corporation and Global Management Technologies [Member] Vovici and GMT Represents information in the aggregate pertaining to Vovici Corporation (Vovici) and Global Management Technologies (GMT). Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Potential additional cash payments to former shareholders, maximum Milestone-based contingent consideration, maximum Business Combination, Contingent Consideration Arrangements Period for Performance Targets For contingent consideration arrangements recognized in connection with a business combination, this element represents the period for performance targets. Period over which certain performance targets are to be achieved (in years) Business Acquisition, Cost of Acquired Entity Other Noncash Consideration, Product Licenses and Support Services Prepayments The amount of prepayments for product licenses and support services procured prior to the acquisition date included as noncash consideration given by the acquirer to acquire the entity. Prepayments for product licenses and support services procured prior to the acquisition date included in purchase price Business Acquisition, Cost of Acquired Entity Other Noncash Consideration, Preacquisition Trade Accounts Payable The amount of preacquisition trade accounts payable included as noncash consideration given by the acquirer to acquire the entity. Trade accounts payable as of the acquisition date included in purchase price Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Increase in fair value of liability for contingent consideration Increase in the fair value of contingent consideration obligation Business Acquisition, Pro Forma Information [Abstract] Pro Forma Information Business Acquisition, Pro Forma Revenue Revenue Business Acquisition, Pro Forma Net Income (Loss) Net loss attributable to Verint Systems Inc. Business Acquisition, August 2011 [Member] Represents information pertaining to the August 2011 business acquisition. August 2011 Business Combination Equity Interest Issued or Issuable by Type [Axis] Equity Interest Issued or Issuable, Type [Domain] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition, Cost of Acquired Entity, Cash Paid to Repay Acquiree Debt Cash paid at closing to repay Vovici's bank debt The portion of the amount of cash paid to acquire the entity used to repay debt of the acquiree at closing. Bank debt, repaid at closing Share-based Compensation Arrangement by Share-based Payment Award, Equity Converted in Period Number of unvested Vovici stock options converted into options to acquire Verint common stock Share-Based Compensation Arrangement by Share-Based Payment Award Options Grants in Period Business Acquisition Converted Acquiree Options Grant Date Fair Value Fair value of Verint stock options The grant-date fair value of options granted during the reporting period on conversion of outstanding and unvested acquiree options as of the acquisition date as calculated by applying the disclosed option pricing methodology. Finite-Lived Intangible Assets [Abstract] Identifiable intangible assets Business Acquisition Cost of Acquired Entity Cash Paid to Shareholders Cash consideration The portion of the amount of cash paid to acquire the entity to shareholders of the acquiree. Cash consideration to shareholders Contingent consideration paid Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Payments of contingent consideration Business Acquisitions Fiscal Year 2012 [Member] Business Combinations Year Ended January 31, 2012 Represents information in the aggregate pertaining to business combinations that were completed during the year ended January 31, 2012. Treasury Stock, Retired, Cost Method, Amount Treasury stock retired Cost of treasury shares acquired and retired Internal-Use Software Internal Use Software, Policy [Policy Text Block] Internal Use Software [Member] Internal-Use Software Purchased software applications and internally developed software for internal use. In Process Research and Development [Member] In-process research and development assets An intangible asset acquired in a business combination or other transaction representing in-process research and development. Business Acquisition Recognized Identifiable Assets Acquired Intangibles Expected Project Completion Period Period within which projects are expected to be completed (in years) Represents the period within which the project is expected to be completed in respect of identifiable intangible assets acquired in the business combination. Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable Estimated total fair value of intangible assets acquired in business combinations Business Acquisition Preacquisition Contingency Amount Increase (Decrease) Reduction in the estimated acquisition-date liabilities Amount of increase (decrease) in the purchase price allocation assigned to the preacquisition contingency. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles Identifiable intangible assets Business Acquisition Purchase Price Allocation Adjustment [Abstract] Adjustments in purchase price allocations Business Acquisition Change in Amount of Liabilities Decrease in certain liabilities The change in the amount of acquisition cost of a business combination allocated to noncurrent liabilities of the acquired entity. Business Combination Change in Amount of Indemnification Obligation Asset Associated asset recorded reflecting the selling shareholders' indemnification obligations Represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of an asset or assets, arising from an item of indemnification obligation, recognized in a business combination. Goodwill, Allocation Adjustment Increase (decrease) in acquisition-date goodwill Finite-Lived Intangible Assets Purchase Accounting Adjustments Increase (decrease) in the estimated acquisition-date fair values of the intangible assets identified in the acquisition Reflects increase (decrease) to the recorded value of finite-lived intangible assets for purchase accounting adjustments needed to revise the carrying amount of finite-lived intangible assets to fair value. Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset Increase in the fair value of contingent consideration asset Business Combination Change in Amount of Performance Obligation Asset Decrease in fair value of performance obligation under customer contracts assumed Represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of an asset or assets, arising from an item of performance obligation, recognized in a business combination. Deferred Tax Liabilities, Other Other, net Vovici 2006 Amended and Restated Stock Plan [Member] The Vovici Plan Represents information pertaining to the Vovici 2006 Amended and Restated Stock Plan, as amended (the Vovici Plan) that permits the grant of stock options (both incentive and nonstatutory), stock purchase rights, and restricted stock units. Range of Exercise Prices from Dollars 17.98 to 23.00 [Member] $17.98 - $23.00 Represents the range of exercise prices from 17.98 dollars to 23.00 dollars per share. Range of Exercise Prices from Dollars 28.41 to 28.41 [Member] $28.41 - $28.41 Represents the range of exercise prices from 28.41 dollars to 28.41 dollars per share. Range of Exercise Prices from Dollars 28.60 to 28.60 [Member] $28.60 - $28.60 Represents the range of exercise prices from 28.60 dollars to 28.60 dollars per share. Range of Exercise Prices from Dollars 29.27 to 29.27 [Member] $29.27 - $29.27 Represents the range of exercise prices from 29.27 dollars to 29.27 dollars per share. Contractual Obligation Fiscal Year Maturity Schedule [Table Text Block] Schedule of minimum future rentals under non-cancelable operating and capital leases Tabular disclosure of the aggregate amount of payments due on known contractual obligations for the five years following the date of the latest balance sheet and the combined aggregate amount of maturities of known contractual obligations. Capital Leases, Future Minimum Payments Due [Abstract] Minimum future rentals under non-cancelable capital leases Capital Leases, Future Minimum Payments Due, Current 2013 Capital Leases, Future Minimum Payments Due in Two Years 2014 Capital Leases, Future Minimum Payments Due in Three Years 2015 Capital Leases, Future Minimum Payments Due Total Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments Present value of minimum lease payments Capital Leases, Future Minimum Payments, Interest Included in Payments Less amount representing interest Valuation Allowances and Reserves, Charged to Other Accounts Additional paid in capital Schedule of Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Text Block] Schedule of acquisition-related intangible assets 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. 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. Acquired Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items] Acquisition-related intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangible assets with indefinite lives, cost Finite and Indefinite-Lived Intangible Assets Gross Total intangible assets, cost 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. Business Acquisition, Contingent Consideration, at Fair Value, Current Contingent consideration - current portion Business Acquisition, Contingent Consideration, at Fair Value, Noncurrent Contingent consideration - non current portion Stock Issued During Period, Shares, New Issues Aggregate number of shares of common stock issued to certain current and former employees and a former director Shares issued during the period Stock Repurchased During Period, Shares Number of shares of common stock repurchased Stock Repurchased During Period, Value Cost of shares of common stock repurchased Treasury Stock, Shares, Retired Shares repurchased and retired Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Video and Situation Intelligence Solutions [Member] Represents the Video and situation intelligence solutions reportable segment of the entity. Video Intelligence Net excess tax benefits resulting from Stock Plans recorded as increases to additional paid-in capital Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Consolidation, Policy [Policy Text Block] Principles of Consolidation Acquisitions Valuation Allowances and Reserves, Reserves of Businesses Acquired Total expected future sublease income Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Operating Leases Rent Expense Annual Sublease Rentals Minimum Total minimum expected future sublease income on an annual basis through February 2017 Contractually required future minimum annual rental payments receivable on noncancelable subleasing arrangements. Operating Leases Rent Expense Annual Sublease Rentals Maximum Total maximum expected future sublease income on an annual basis through February 2017 Contractually required future maximum annual rental payments receivable on noncancelable subleasing arrangements. Business Acquisition Purchase Price Allocation Maximum Measurement Period Maximum time period for determining fair values for assets acquired and liabilities assumed (in years) The maximum time period available from an acquisition date for determining the fair value of assets acquired and liabilities assumed. Unrecognized Tax Benefits, Increases Resulting from Acquisition Increases as a result of acquisitions Gross amount of increases in unrecognized tax benefits resulting from acquisitions. Allowance for Doubtful Accounts [Policy Text Block] Allowance for Doubtful Accounts Disclosure of accounting policy for the allowance for doubtful accounts. Finite-Lived Intangible Assets, Useful Life, Minimum Minimum useful life of all finite-lived identifiable intangible assets (in years) Cost of Revenue Abstract Cost of Revenue Deferred Cost of Revenue Classification Current Maximum period of time for recognizing revenue for deferred cost of revenue classified as current (in months) Maximum number of months for recognizing deferred revenue in order for the related deferred cost of revenue to be classified as a current asset. Condensed Consolidated Statements of Comprehensive Income Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Foreign currency translation adjustments: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract] Derivative financial instruments designated as hedges: Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax Reclassification adjustment for gains (losses) included in net income Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect Income tax effect Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Total Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss), net of income taxes Net unrealized gains on derivative financial instruments designated as hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Number of additional business combinations Number of Businesses Acquired Number of Business Combinations for Acquisition of Assets Number of business combinations for acquisition of assets Represents the number of businesses combinations for acquisition of assets. Net loss attributable to Verint Systems Inc. common shares, Diluted Business Acquisition, Pro Forma Earnings Per Share, Diluted Net loss attributable to Verint Systems Inc. common shares, Basic Business Acquisition, Pro Forma Earnings Per Share, Basic Net loss Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax Debt Instrument Interest Period Interest period (in months) Represents the interest period for a debt instrument. Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Deferred Tax Assets Valuation Allowance Period Considered for Historical Losses Deferred tax assets valuation allowance, period considered for historical losses (in years) Represents the period considered for historical losses occurred in the U.S. and in certain foreign jurisdictions, considered for maintaining valuation allowances against entity's federal and certain state and foreign deferred tax assets. Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Unrealized net change for the period Currency translation adjustments Other Comprehensive Income (Loss), before Tax [Abstract] Other comprehensive income, before income taxes and net of reclassification adjustments: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Foreign currency translation adjustments Other Comprehensive Income (Loss), before Tax Other comprehensive income, before provision for income taxes Other Comprehensive Income (Loss), Tax Provision for income taxes, related to items of other comprehensive income Fair Value Inputs, Discount Rate Discount rates Business Acquisition, January 2012 [Member] January 2012 Business Combination Represents information pertaining to the January 2012 business acquisition. Net Deferred Income Tax Liabilities Purchase Accounting Adjustments Increase (decrease) in the net deferred income tax liabilities in the acquisition Reflects increase (decrease) to the recorded value of ned deferred income tax liabilities for purchase accounting adjustments. Adjustments to Record Assets and Liabilites Acquired at Fair Value [Abstract] Adjustments to record assets and liabilites acquired at fair value Business Acquisition, Purchase Price Allocation Intangible Assets Adjustment Intangible assets The amount of acquisition cost of a business combination allocated to adjustments of intangible assets acquired at fair value. Business Acquisition, Purchase Price Allocation Accrued Expenses Adjustment Accrued expenses The amount of acquisition cost of a business combination allocated to adjustments of accrued expenses. Business Acquisition, Purchase Price Allocation Other Liabilities Adjustment Other liabilities The amount of acquisition cost of a business combination allocated to adjustments of other liabilities acquired at fair value. Business Acquisition, Purchase Price Allocation Other Assets Adjustment Other assets The amount of acquisition cost of a business combination allocated to adjustments of other assets acquired at fair value. Leasehold Improvements Funded by Lease Incentive Leasehold improvements funded by lease incentive Value of leasehold improvements funded by lease incentive in noncash transactions. Scenario, Previously Reported [Member] As previously reported Measurement period adjustments Scenario, Adjustment [Member] Number of Business Combinations Number of additional business combinations Represents the number of business combinations which are not separately disclosed in the entity's financial statements. Number of Business Combinations Acquisition of Assets Number of asset acquisitions included in additional business combinations Represents the number of asset acquisition transactions that qualified as business combinations which are not separately disclosed in the entity's financial statements. Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount Estimated amount of deductible goodwill Goodwill Tax Deductibility Still Being Assessed Goodwill for which tax deductibility is still being assessed Represents the amount of goodwill for which the tax deductibility is still being assessed as of the balance sheet date. Amount of long-term debt maturing within the remainder of the fiscal year following the date of the most recent balance sheet presented in the financial statements. 2013 (Remainder of year) Long-term Debt Maturities Repayments of Principal Remainder of Fiscal Year Amount of long-term debt maturing within the first full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2014 Long-term Debt Maturities Repayments of Principal in First Full Fiscal Year Amount of long-term debt maturing within the second full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2015 Long-term Debt Maturities Repayments of Principal in Second Full Fiscal Year Amount of long-term debt maturing within the third full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2016 Long-term Debt Maturities Repayments of Principal in Third Full Fiscal Year Amount of long-term debt maturing within the fourth full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2017 Long-term Debt Maturities Repayments of Principal in Fourth Full Fiscal Year Amount of long-term debt maturing after the fourth full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2018 and thereafter Long-term Debt Maturities Repayments of Principal after Fourth Full Fiscal Year Business Acquisition, Purchase Price Allocation, Goodwill, Tax Not Deductible Amount Estimated amount of goodwill which is not tax deductible The amount of goodwill arising from a business combination that is expected not to be deductible for tax purposes. Share-based Compensation, Arrangement by Share-based Payment Award, Options, Not Exercisable Number Stock options not excercisable (in shares) The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date cannot be currently converted under the option plan. Related Party Transaction, Purchases from Related Party Purchases from related party Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Segment Revenue Adjustments Revenue adjustments Represents segment revenue adjustments related to deferred revenue of acquired companies.