BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Apr. 30, 2020
Accounting Policies [Abstract]
Preparation of Condensed Consolidated Financial Statements	Preparation of Condensed Consolidated Financial Statements The condensed consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and on the same basis as the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended January 31, 2020 filed with the U.S. Securities and Exchange Commission (“SEC”), except for the recently adopted accounting pronouncements described below. The condensed consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows for the periods ended April 30, 2020 and 2019, and the condensed consolidated balance sheet as of April 30, 2020, are not audited but reflect all adjustments that are of a normal recurring nature and that are considered necessary for a fair presentation of the results for the periods shown. The condensed consolidated balance sheet as of January 31, 2020 is derived from the audited consolidated financial statements presented in our Annual Report on Form 10-K for the year ended January 31, 2020. Certain information and disclosures normally included in annual consolidated financial statements have been omitted pursuant to the rules and regulations of the SEC. Because the condensed consolidated interim financial statements do not include all of the information and disclosures required by GAAP for a complete set of financial statements, they should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended January 31, 2020 filed with the SEC. The results for interim periods are not necessarily indicative of a full year’s results.
Principles of Consolidation	Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of Verint Systems Inc., our wholly owned or otherwise controlled subsidiaries, and a joint venture in which we hold a 50% equity interest. The joint venture is a variable interest entity in which we are the primary beneficiary. Noncontrolling interests in less than wholly owned subsidiaries are reflected within stockholders’ equity on our condensed consolidated balance sheet, but separately from our stockholders’ equity. We hold an option to acquire the noncontrolling interests in two majority owned subsidiaries and we account for the option as an in-substance investment in the noncontrolling common stock of each such subsidiary. We include the fair value of the option within other liabilities and do not recognize noncontrolling interests in these subsidiaries. Equity investments in companies in which we have less than a 20% ownership interest and cannot exercise significant influence, and which do not have readily determinable fair values, are accounted for at cost, adjusted for changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer, less any impairment. We include the results of operations of acquired companies from the date of acquisition. All significant intercompany transactions and balances are eliminated.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires our management to make estimates and assumptions, which may affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. In light of the currently unknown extent and duration of the COVID-19 pandemic, we face a greater degree of uncertainty than normal in making the judgments and estimates needed to apply to certain of our significant accounting policies. We assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to us and the unknown future impacts COVID-19 as of April 30, 2020 and through the date of this report. These estimates may change, as new events occur and additional information is obtained. Actual results could differ materially from these estimates under different assumptions or conditions.
Significant Accounting Policies	Significant Accounting PoliciesThere have been no material changes in our significant accounting policies during the three months ended April 30, 2020, as compared to the significant accounting policies described in Note 1 to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended January 31, 2020.
New Accounting Pronouncements and Changes in Accounting Principles	Recently Adopted Accounting Pronouncements In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") No. 2016-13, Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments. This new standard requires entities to measure expected credit losses for certain financial assets held at the reporting date using a current expected credit loss model, which is based on historical experience, adjusted for current conditions and reasonable and supportable forecasts. The Company's financial instruments within the scope of this guidance primarily includes accounts receivable and contract assets. On February 1, 2020, we adopted the new standard under the modified retrospective approach, such that comparative information has not been restated and continues to be reported under accounting standards in effect for those periods. The adoption of ASU No. 2016-13 resulted in a $1.1 million increase in our allowance for expected credit losses related to accounts receivable and contract assets, a $0.2 million increase to deferred tax assets, and an impact of $0.9 million to our accumulated deficit. The new accounting standard did not have a material impact on our condensed consolidated financial statements, including accounting policies, given our limited historical write-off activity. In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, which requires customers in a hosting arrangement that is a service contract to follow existing internal-use software guidance to determine which implementation costs to capitalize and which costs to expense. Under the new standard, implementation costs are deferred and presented in the same financial statement caption on the condensed consolidated balance sheet as a prepayment of related arrangement fees. The deferred costs are recognized over the term of the arrangement in the same financial statement caption in the condensed consolidated income statement as the related fees of the arrangement. We adopted ASU No. 2018-15 prospectively to eligible costs incurred on or after February 1, 2020 and the implementation did not have a material impact on our condensed consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to The Disclosure Requirements for Fair Value Measurement, which modifies the disclosure requirements on fair value measurements. Since the standard affects only disclosure requirements, the adoption of the standard did not have an impact on our condensed consolidated financial statements. New Accounting Pronouncements Not Yet Effective In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which affects general principles within Topic 740, Income Taxes and is meant to simplify and reduce the cost of accounting for income taxes. This standard is effective for interim and annual reporting periods beginning after December 15, 2020. We are currently reviewing this standard but do not expect that it will have a material impact on our consolidated financial statements.