Xura 10-Q 15 Jun 15 2016 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Apr. 30, 2015	Jun. 01, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	30-Apr-15
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Entity Registrant Name	Comverse, Inc.
Entity Central Index Key	1549872
Current Fiscal Year End Date	-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		22,705,657

Condensed_Consolidated_Stateme

Condensed Consolidated Statements Of Operations (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Revenue:
Product revenue	$10,107	$17,010
Service revenue	35,598	48,072
Total revenue	45,705	65,082
Costs and expenses:
Product costs	12,953	9,895
Service costs	30,804	40,990
Research and development, net	8,280	8,359
Selling, general and administrative	19,873	25,560
Other operating expenses:
Restructuring expenses	3,408	1,872
Total other operating expenses	3,408	1,872
Total costs and expenses	75,318	86,676
Loss from operations	-29,613	-21,594
Interest income	84	115
Interest expense	-193	-123
Foreign currency transaction (loss) gain, net	-5,573	2,019
Other income (expense), net	102	-52
Loss before income tax expense	-35,193	-19,635
Income tax expense	-4,787	-2,460
Loss from continuing operations	-39,980	-22,095
Income from discontinued operations	13,319	5,964
Net loss	($26,661)	($16,131)
Weighted average common shares outstanding:
Weighted Average Number of Shares Outstanding, Basic and Diluted	21,865,326	22,293,980
(Loss) earnings per share - basic & diluted:
Continuing operations	($1.83)	($0.99)
Discontinued operations	$0.61	$0.27
Earnings Per Share, Basic and Diluted	($1.22)	($0.72)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statement of Comprehensive Income (Loss) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	($26,661)	($16,131)
Other comprehensive income (OCI), net of tax:
Foreign currency translation adjustments	2,695	-2,462
Changes in accumulated OCI on cash flow hedges, net of tax	429	123
Other comprehensive income (loss), net of tax	3,124	-2,339
Comprehensive loss	($23,537)	($18,470)

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
ASSETS
Cash and cash equivalents	$136,096	$158,121
Restricted cash and bank deposits	36,054	35,802
Accounts receivable, net of allowance of $2,952 and $4,403, respectively	33,914	71,670
Inventories	17,550	17,817
Deferred cost of revenue	3,481	7,059
Deferred income taxes	14,314	13,781
Prepaid expenses	12,635	15,156
Other current assets	13,758	10,570
Assets held for sale	154,829	0
Total current assets	422,631	329,976
Property and equipment, net	39,825	49,230
Goodwill	67,585	151,217
Intangible assets, net	1,561	4,049
Deferred cost of revenue	20,305	30,437
Deferred income taxes	2,875	3,064
Long-term restricted cash	7,714	7,940
Other assets	15,365	30,439
Total assets	577,861	606,352
LIABILITIES AND (DEFICIT) EQUITY
Accounts payable and accrued expenses	106,074	121,720
Deferred revenue	116,738	185,323
Deferred income taxes	1,575	1,491
Income taxes payable	4,339	2,166
Liabilities held for sale	134,013	0
Total current liabilities	362,739	310,700
Deferred revenue	56,729	89,999
Deferred income taxes	51,034	56,815
Other long-term liabilities	114,539	135,456
Total liabilities	585,041	592,970
Commitments and contingencies
(Deficit) equity:
Common stock, $0.01 par value - authorized, 100,000,000 shares; issued 22,695,729 and 22,591,411 shares, respectively; outstanding, 21,930,512 and 21,830,081 shares, respectively	227	226
Preferred stock, $0.01 par value - authorized, 100,000 shares	0	0
Treasury stock, at cost, 765,217 and 761,330 shares, respectively	-17,292	-17,211
Accumulated deficit	-73,051	-46,390
Additional paid in capital	48,990	45,935
Accumulated other comprehensive income	33,946	30,822
Total (deficit) equity	-7,180	13,382
Total liabilities and (deficit) equity	$577,861	$606,352

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$0	$4,403
Preferred Stock, Value, Issued	$0.01	$0.01
Preferred Stock, Shares Authorized	100,000
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	22,695,729	22,591,411
Common stock, shares outstanding	21,930,512	21,830,081
Treasury Stock, Shares	765,217	761,330

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements Of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Cash flows from operating activities:
Net loss	($26,661)	($16,131)
Depreciation and amortization	4,927	4,739
Provision for doubtful accounts	86	254
Stock-based compensation expense	3,056	2,938
Deferred income taxes	-6,039	1,150
Inventory write-downs	625	868
Other non-cash items, net	325	71
Accounts receivable	-296	-17,720
Inventories	-475	-2,652
Deferred cost of revenue	2,554	5,822
Prepaid expense and other current assets	-8,603	-11,173
Accounts payable and accrued expense	13,280	-9,755
Income taxes	2,122	-267
Deferred revenue	2,757	3,404
Tax contingencies	-721	2,479
Other assets and liabilities	-4,641	374
Net cash used in operating activities	-17,704	-35,599
Cash flows from investing activities:
Purchases of property and equipment	-4,999	-3,309
Net change in restricted cash and bank deposits	-710	-4,774
Proceeds from asset sales	97	9
Net cash used in investing activities	-5,612	-8,074
Cash flows from financing activities:
Payment for repurchase of common stock in connection with tax liabilities upon settlement of stock awards	-81	-386
Proceeds from exercises of stock options	0	40
Net cash used in financing activities	-81	-346
Effects of exchange rates on cash and cash equivalents	1,372	-465
Net decrease in cash and cash equivalents	-22,025	-44,484
Cash and cash equivalents, beginning of period	158,121	254,580
Cash and cash equivalents, end of period	136,096	210,096
Accrued but unpaid purchases of property and equipment	1,220	3,887
Inventory transfers to property and equipment	$179	$1,020

Organization_Business_and_Summ

Organization, Business and Summary of Significant Accounting Policies	3 Months Ended
	Apr. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Business and Summary of Significant Accounting Policies	ORGANIZATION, BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Company Background
	Prior to October 31, 2012, the date of the Share Distribution (as defined below), Comverse, Inc. (the “Company”) was a wholly-owned subsidiary of Comverse Technology, Inc. (“CTI”). The Company was organized as a Delaware corporation in November 1997.
	The Company is a global provider of cloud-based and in-network services enablement and monetization software solutions for communication service providers (“CSPs”) and growing enterprises. The Company offers a suite of software solutions designed to support users’ connected lifestyles, and help its customers simplify and differentiate their offerings with faster time to value and less complexity.
	The Company's Digital Services products are designed to help CSPs evolve to become Digital Service Providers and future-proof their offerings by monetizing the digital lifestyle of their subscribers. In addition, the Company continues to offer traditional VAS solutions, including voice and messaging services (including voicemail, visual voicemail, call completion, short messaging service (“SMS”), and multimedia picture and video messaging (“MMS”), and digital lifestyle services and Internet Protocol (“IP”) based rich communication services (including group chat, file transfer, video share, social, presence and geo-location information).
	Amdocs Asset Purchase Agreement
	On April 29, 2015, the Company entered into an Asset Purchase Agreement (the “Amdocs Purchase Agreement”) with Amdocs Limited, a Guernsey company (the “Purchaser”). Pursuant to the Amdocs Purchase Agreement, the Company agreed to sell substantially all of its assets required for operating the Company’s converged, prepaid and postpaid billing and active customer management systems for wireless, wireline, cable and multi-play communication service providers (the “BSS Business”) to the Purchaser, and the Purchaser has agreed to assume certain liabilities of the Company, in exchange for a cash purchase price of $272 million, subject to various purchase price adjustments (the “Asset Sale”).
	The Amdocs Purchase Agreement contains customary representations and warranties of the parties and covenants of the Company. Under the terms of the Amdocs Purchase Agreement, upon the closing of the Asset Sale, $26 million of the purchase price will be deposited into escrow to fund potential indemnification claims and certain adjustments for a period of twelve (12) months following the closing. The Company and the Purchaser will also enter into other ancillary transaction documents at closing. The closing of the Asset Sale is subject to the applicable regulatory approvals and other closing conditions.
	The Amdocs Purchase Agreement may be terminated prior to the closing of the Asset Sale upon certain events, including by written agreement of the Company and the Purchaser, or by either the Company or the Purchaser if the Asset Sale has not closed by August 29, 2015 or if a permanent injunction or other order prohibiting the closing has been issued by a governmental entity.
	Pursuant to the Amdocs Purchase Agreement, the Company has agreed generally, but with some enumerated exceptions, to carry on its BSS Business in the ordinary course during the period from the date of the Amdocs Purchase Agreement to the completion of the Asset Sale.
	In connection with the Amdocs Purchase Agreement, the Company and the Purchaser have also entered into a Transition Services Agreement (the “TSA”), which provides for several support services between the Company and the Purchaser in connection with the transition of the BSS Business to the Purchaser, and for various periods up to 12 months of services following the closing of the Asset Sale. Either party may terminate the TSA if the Amdocs Purchase Agreement is terminated. (see Note 18, Commitments and Contingencies)
	Basis of Presentation
	The condensed consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and on the same basis as the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 31, 2015 (the “2014 Form 10-K”) (see Note 14, Discontinued Operations).
	The condensed consolidated statements of operations, comprehensive income (loss) and cash flows for the periods ended April 30, 2015 and 2014, and the condensed consolidated balance sheet as of April 30, 2015 are not audited but in the opinion of management reflect all adjustments that are of a normal recurring nature and that are considered necessary for a fair statement of the results of the periods presented. Certain information and disclosures normally included in audited financial statements have been omitted in these condensed consolidated financial statements pursuant to the rules and regulations of the SEC. Because the condensed consolidated financial statements do not include all of the information and disclosures required by U.S. GAAP for annual financial statements, they should be read in conjunction with the audited consolidated financial statements and notes included in the 2014 Form 10-K. The results for the three months ended April 30, 2015 are not necessarily indicative of the results for the full fiscal year ending January 31, 2016.
	Intercompany accounts and transactions within the Company have been eliminated.
	Discontinued Operations
	The BSS Business met the criteria to be classified as held for sale as well as discontinued operations. As such, the BSS Business has been reclassified and reflected as discontinued operations on the consolidated statements of operations for all periods presented. The estimated assets and liabilities related to BSS Business were reclassified and reflected as available for sale on the consolidated balance sheet at April 30, 2015.
	Segment Information
	Prior to entering into the Amdocs Purchase Agreement, the Company’s reportable segments consisted of BSS and Digital Services. As a result of entering into the Amdocs Purchase Agreement, the results of operations of the former BSS Business segment are classified as discontinued operations. Therefore, with the reported divestiture, the Company now operates as a single business segment the results of which are included in the Company's income statement from continuing operations.
	The Share Distribution
	On October 31, 2012, CTI completed the spin-off of the Company as an independent, publicly-traded company, accomplished by means of a pro rata distribution of 100% of the Company's outstanding common shares to CTI's shareholders (the “Share Distribution”). Following the Share Distribution, CTI no longer holds any of the Company's outstanding capital stock, and the Company is an independent publicly-traded company.
	In order to govern certain ongoing relationships between CTI and the Company after the Share Distribution and to provide mechanisms for an orderly transition, CTI and the Company entered into agreements pursuant to which certain services and rights are provided for following the Share Distribution, and CTI and the Company agreed to indemnify each other against certain liabilities that may rise from their respective businesses and the services that are provided under such agreements. Following the completion of CTI's merger with Verint Systems Inc. (“Verint”) discussed below, these obligations continue to apply between the Company and Verint (see Note 3, Share Distribution Agreements).
	Upon completion of the Share Distribution, the Company's shares were listed, and began trading, on NASDAQ under the symbol “CNSI.” On November 1, 2012 in connection with the Share Distribution, CTI's equity-based compensation awards held by the Company's employees were replaced with the Company's equity-based compensation awards.
	Merger of CTI and Verint
	On August 12, 2012, CTI entered into an agreement and plan of merger (the “Verint Merger Agreement”) with Verint, its then majority-owned publicly-traded subsidiary, providing for the merger of CTI with and into a subsidiary of Verint to become a wholly-owned subsidiary of Verint (the “Verint Merger”). The Verint Merger was completed on February 4, 2013. The Company agreed to indemnify CTI and its affiliates (including Verint after the Verint Merger) against certain losses that may arise as a result of the Verint Merger and the Share Distribution (see Note 3, Share Distribution Agreements). On February 4, 2013, in connection with the closing of the Verint Merger Agreement, CTI placed $25.0 million in escrow to support indemnification claims to the extent made against the Company by Verint and any cash balance remaining in such escrow fund 18 months after the closing of the Verint Merger (the "Escrow Release Date"), less any claims made on or prior to such date, to be released to the Company. On August 6, 2014, the escrow was released in accordance with its terms and the Company received the escrow amount of approximately $25.0 million. As of the closing of the Verint Merger, the Company recognized the estimated fair value of the potential indemnification liability of $4.0 million with the remaining $21.0 million as an additional contribution from CTI. As of April 30, 2015, the indemnification liability is $3.7 million.
	Acquisition of Acision
	On June 15, 2015, the Company entered into an agreement (the “Acision Purchase Agreement”) with Bergkamp Coöperatief U.A., a cooperative with excluded liability formed under the laws of the Netherlands (the “Seller”) relating to the sale and purchase of Acision Global Limited, a private company formed under the laws of the United Kingdom (“Acision”). Pursuant to the Acision Purchase Agreement, the Company will acquire Acision for a purchase price consisting of approximately $135 million in cash (including certain earnout payments) and 3.13 million shares of the Company’s common stock, par value $0.01 per share (the “Consideration Shares”), subject to certain adjustments (the “Transaction”). The Transaction includes arrangements relating to the retention of funds in escrow to support any indemnification claims to the extent made by the Company. In addition, Acision, in consultation with the Company, will seek an amendment and waiver (the “Amendment”) to the credit agreement (the “Acision Credit Agreement”) governing Acision’s existing approximately $157 million senior credit facility (the “Acision Senior Debt”), pursuant to which the Acision Senior Debt will remain in place during the pendency of and following completion of the Transaction. Subject to provisions allowing the Company to secure alternative financing, both the Company and the Seller are permitted to terminate the Acision Purchase Agreement in the event the requisite lenders under the Acision Credit Agreement do not consent to the Amendment.
	The Acision Purchase Agreement contains customary representations, warranties and covenants, by the parties thereto and completion of the Transaction as set forth therein is subject to certain closing conditions including (i) the completion of the Asset Sale to Amdocs Limited and (ii) the receipt of the requisite regulatory approvals and consents.
	Each party has agreed to indemnify the other for certain potential liabilities and claims, subject to certain exceptions and limitations. (See Note 19, Subsequent Events)
	Acquisition of Solaiemes
	On August 1, 2014, the Company acquired 100% of the outstanding equity of Spain-based Solaiemes, S.L. (“Solaiemes”) for approximately $2.7 million and the assumption of $1.4 million of debt. Solaiemes is an innovator focused on enabling the creation and monetization of CSPs’ digital services. Solutions from Solaiemes complement the Company's Evolved Communication Suite offering and the combined portfolio creates an end-to-end platform for service monetization of IP-based digital services.
	At the time of the acquisition, Solaiemes had 15 employees. Results of the most recent periods for Solaiemes were not material to the Company. The results of operations of Solaiemes have been included in our consolidated financial statements beginning on the acquisition date. Revenue and earnings of Solaiemes since the acquisition date were not material.
	The acquisition of Solaiemes has been accounted for as a business combination. Assets acquired and liabilities assumed have been recorded at their estimated fair values as of the August 1, 2014 acquisition date. The fair values of intangible asset were based on valuations using a cost approach.
	The excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities was recorded as goodwill.
	Agreement with Tech Mahindra
	On April 14, 2015, the Company entered into a Master Service Agreement (the “MSA”) with Tech Mahindra Limited (“Tech Mahindra”) pursuant to which Tech Mahindra will perform certain services for the Company’s Digital Services business on a global basis. The services include research and development, project deployment and delivery and maintenance and support for customers of the Company’s Digital Service business. In connection with the transaction, up to approximately 570 employees of the Company and its subsidiaries may be rehired by Tech Mahindra or its affiliates. However, under the terms of the MSA, where applicable, Tech Mahindra’s provision of such services (and any employee rehire) is contingent upon local decisions for Company entities to enter into the agreement on a country-by-country basis after the completion of all regulatory and compliance requirements under applicable law. Under the MSA, the Company is obligated to pay to Tech Mahindra in the aggregate approximately $211 million in base fees for services to be provided pursuant to the MSA for a term of six years, renewable at the Company’s option. The services under the MSA started on June 1, 2015. For more information, see Note 18, Commitments and Contingencies.
	The Company has the right to terminate the MSA for convenience subject to the payment of certain termination fees. The Company may terminate the MSA upon certain material breaches, certain material performance failures or violations of applicable law by Tech Mahindra without termination fees. Tech Mahindra may terminate the MSA upon certain material breaches by the Company, including the failure to pay undisputed amounts. Upon any termination or expiration, Tech Mahindra will provide reverse transition services to transition the services being provided by Tech Mahindra pursuant to the MSA back to the Company or its designee. The MSA contains certain indemnification provisions by both Comverse and Tech Mahindra.
	Use of Estimates
	The preparation of the condensed consolidated financial statements and the accompanying notes in conformity with U.S. GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses.
	The most significant estimates among others include:
	•	Estimates relating to the recognition of revenue, including the determination of vendor specific objective evidence (“VSOE”) of fair value and the determination of best estimate of selling price for multiple element arrangements;
	•	Fair value of stock-based compensation;
	•	Fair value of reporting unit for the purpose of goodwill impairment testing;
	•	Fair value of long-lived assets and asset groups;
	•	Realization of deferred tax assets;
	•	The identification and measurement of uncertain tax positions;
	•	Contingencies and litigation;
	•	Total estimates to complete on percentage-of-completion (“POC”) projects;
	•	Valuation of inventory;
	•	Israel employees severance pay;
	•	Allowance for doubtful accounts; and
	•	Valuation of other intangible assets.
	The Company’s actual results may differ from its estimates.
	Recoverability of Long-Lived Assets
	The Company periodically evaluates its long-lived assets for potential impairment. In accordance with the relevant accounting guidance, the Company reviews the carrying value of our long-lived assets or asset group that is held and used for impairment whenever circumstances occur that indicate that those carrying values are not recoverable. Under the held and used approach, assets are grouped at the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. The identification of asset groups involves judgment, assumptions, and estimates. The lowest level of cash flows which are largely independent of one another was determined to be at the BSS and Digital Services reporting units.
	The Company makes judgments about the recoverability of long-lived assets, including fixed assets and purchased finite-lived intangible assets whenever events or changes in circumstances indicate that impairment may exist. Each period we evaluate the estimated remaining useful lives of long-lived assets and whether events or changes in circumstances warrant a revision to the remaining periods of depreciation or amortization. If circumstances arise that indicate an impairment may exist, we use an estimate of the undiscounted value of expected future operating cash flows over the primary asset’s remaining useful life and salvage value to determine whether the long-lived assets are impaired. If the aggregate undiscounted cash flows and salvage values are less than the carrying amount of the assets, the resulting impairment charge to be recorded is calculated based on the excess of the carrying amount of the assets over the fair value of such assets, with the fair value generally determined using the discounted cash flow ("DCF") method. Application of the DCF method for long-lived assets requires judgment and assumptions related to the amount and timing of future expected cash flows, salvage value assumptions, and appropriate discount rates. Different judgments or assumptions could result in materially different fair value estimates. During the three months ended April 30, 2015, the Company assessed its Digital Services asset group for impairment and determined no impairment was indicated.
	Goodwill
	Goodwill represents the excess of the fair value of consideration transferred in a business combination over the fair value of tangible and intangible assets acquired net of the fair value of liabilities assumed and the fair value of any noncontrolling interest in the acquiree. The Company has no indefinite-lived intangible assets other than goodwill. The carrying amount of goodwill is reviewed annually for impairment on November 1 and whenever events or changes in circumstances indicate that the carrying value may not be recoverable.
	The Company applies the FASB's guidance when testing goodwill for impairment which permits the Company to make a qualitative assessment of whether goodwill is impaired, or opt to bypass the qualitative assessment, and proceed directly to performing the first step of the two-step impairment test. If the Company performs a qualitative assessment and concludes it is more-likely-than-not that the fair value of a reporting unit exceeds its carrying value, goodwill is not considered impaired and the two-step impairment test is unnecessary. However, if the Company concludes otherwise, it is then required to perform the first step of the two-step impairment test.
	The Company has the unconditional option to bypass the qualitative assessment for any reporting unit and proceed directly to performing the first step of the goodwill impairment test. The Company may resume performing the qualitative assessment in any subsequent period.
	For reporting units where the Company decides to perform a qualitative assessment, the Company's management assesses and makes judgments regarding a variety of factors which potentially impact the fair value of a reporting unit, including general economic conditions, industry and market-specific conditions, customer behavior, cost factors, financial performance and trends, strategies and business plans, capital requirements, management and personnel issues, and stock price, among others. Management then considers the totality of these and other factors, placing more weight on the events and circumstances that are judged to most affect a reporting unit's fair value or the carrying amount of its net assets, to reach a qualitative conclusion regarding whether it is more-likely-than-not that the fair value of a reporting unit exceeds its carrying amount.
	For reporting units where the Company performs the two-step goodwill impairment test, the first step requires the Company to compare the fair value of each reporting unit to the carrying value of its net assets. The Company considers both an income-based approach using projected discounted cash flows and a market-based approach using multiples of comparable companies to determine the fair value of its reporting units. The Company's estimate of fair value of each reporting unit is based on a number of subjective factors, including: (i) the appropriate weighting of valuation approaches (income-based approach and market-based approach), (ii) estimates of the future revenue and cash flows, (iii) discount rate for estimated cash flows, (iv) selection of peer group companies for the market-based approach, (v) required levels of working capital, (vi) assumed terminal value, (vii) the time horizon of cash flow forecasts; and (viii) control premium.
	If the fair value of the reporting unit exceeds its carrying value, goodwill is not considered impaired and no further evaluation is necessary. If the carrying value of the reporting unit is greater than the estimated fair value of the reporting unit, there is an indication that impairment may exist and the second step is required. In the second step, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair value assigned to its assets and liabilities. If the implied fair value of goodwill is less than the carrying value of the reporting unit's goodwill, the difference is recognized as an impairment charge.
	The Company's forecasts and estimates are based on assumptions that are consistent with the plans and estimates used to manage the business. Changes in these estimates could change the conclusion regarding an impairment of goodwill.
As a result of the Amdocs Purchase Agreement for the sale the BSS Business, the Company performed an interim goodwill test in conjunction with the preparation of its financial statements for the three months ended April 30, 2015 which did not result in an impairment (see Note 5, Goodwill).
Revenue Recognition
Management is required to make judgments to estimate the total estimated costs and progress to completion. Changes to such estimates can impact the timing of the revenue recognition period to period. The Company uses historical experience, project plans, and an assessment of the risks and uncertainties inherent in the arrangement to establish these estimates. Uncertainties in these arrangements include implementation delays or performance issues that may or may not be within the Company's control. If some level of profitability is assured, but the related revenue and costs cannot be reasonably estimated, then revenue is recognized to the extent of costs incurred until such time that the project's profitability can be estimated or the services have been completed. If the Company determines that based on its estimates its costs exceed the sales price, the entire amount of the estimated loss is accrued in the period that such losses become known.
The change in profit estimate for those projects accounted for under the percentage of completion method where a loss provision was recorded, negatively impacted income from operations by $0.1 million and $1.5 million during the three months ended April 30, 2015 and 2014, respectively.

Recently_Issued_Accounting_Pro

Recently Issued Accounting Pronouncements	3 Months Ended
	Apr. 30, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recently Issued Accounting Pronouncements	RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS
	The Company is currently classified as an emerging growth company as defined under the JOBS Act. Emerging growth companies can delay adopting new or revised accounting standards that have different effective dates for public and private companies until such time as those standards apply to private companies. The Company has elected to follow the required adoption dates for private companies. Therefore, the adoption dates below reflect the Company's current classification.
	Standards To Be Implemented
	In April 2014, the FASB issued and Accounting Standards update for Presentation of Financial Statements, Property, Plant, and Equipment and Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. Under the new guidance, raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The guidance will be effective for the Company for the annual reporting period fiscal year ended January 31, 2016 and interim periods thereafter. The Company is currently following the previous guidance and is evaluating the impact of the adoption of this accounting standard update on its financial statements.
	In May 2014, the FASB issued new accounting guidance on revenue recognition. This topic requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The guidance will be effective for the Company beginning January 31, 2018. The Company is currently evaluating the impact of the adoption of this accounting standard update on its financial statements.
	In August 2014, the FASB issued new guidance on going concern. Under the new guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this guidance are effective for annual periods beginning after December 15, 2016, and for interim periods therein. This guidance is not expected to have an impact on the Company’s financial statements or disclosures.

Expense_Allocations_and_Share_

Expense Allocations and Share Distribution Agreements	3 Months Ended
	Apr. 30, 2015
Expense Allocations and Share Distribution Agreements [Abstract]
Expense Allocations and Share Distribution Agreements	SHARE DISTRIBUTION AGREEMENTS
	Share Distribution Agreements
	The Company entered into a distribution agreement (the “Distribution Agreement”), transition services agreement, tax disaffiliation agreement and employee matters agreement (collectively, the “Share Distribution Agreements”) with CTI in connection with the Share Distribution. In particular, the Distribution Agreement, among other things, provides for the allocation between the Company and CTI of various assets, liabilities and obligations attributable to periods prior to the Share Distribution. Under the Distribution Agreement, the Company agreed to indemnify CTI and its affiliates (including Verint following the Verint Merger) against certain losses that may arise as a result of the Verint Merger and the Share Distribution. Certain of the Company's indemnification obligations are capped at $25.0 million and certain are uncapped. Specifically, the capped indemnification obligations include indemnifying CTI and its affiliates (including Verint after the Verint Merger) against losses stemming from breaches by CTI of representations, warranties and covenants in the Verint Merger Agreement and for any liabilities of CTI that were known by CTI but not included on the net worth statement delivered by CTI at the closing of the Verint Merger. The Company's uncapped indemnification obligations include indemnifying CTI and its affiliates (including Verint after the Verint Merger) against liabilities relating to the Company's business; claims by any shareholder or creditor of CTI related to the Share Distribution, the Verint Merger or related transactions or disclosure documents; certain claims made by employees or former employees of CTI and any claims made by employees and former employees of the Company (including but not limited to the Israeli optionholder suits discussed in Note 18, Commitments and Contingencies); any failure by the Company to perform under any of the agreements entered into in connection with the Share Distribution; claims related to CTI's ownership or operation of the Company; claims related to the Starhome Disposition (as defined in Note 18, Commitments and Contingencies); certain retained liabilities of CTI that are not reflected on or reserved against on the net worth statement delivered by CTI at the closing of the Verint Merger; and claims arising out of the exercise of appraisal rights by a CTI shareholder in connection with the Share Distribution. On February 4, 2013, in connection with the closing of the Verint Merger Agreement, CTI placed $25.0 million in escrow to support indemnification claims to the extent made against the Company by Verint and any cash balance remaining in such escrow fund 18 months after the closing of the Verint Merger, less any claims made on or prior to such date, to be released to the Company. The escrow funds could not be used for claims related to the Israeli optionholder suits. On August 6, 2014, the escrow was released in accordance with its terms and the Company received the escrow amount of approximately $25.0 million. The Company also assumed all pre-Share Distribution tax obligations of each of the Company and CTI.
	The Company and CTI entered into a tax disaffiliation agreement that governs their respective rights, responsibilities and obligations after the Share Distribution with respect to tax liabilities and benefits, tax attributes, tax contests and other tax matters regarding income taxes, other taxes and related tax returns. The Company and CTI also entered into an employee matters agreement, which allocates liabilities and responsibilities relating to employee compensation and benefit plans and programs.

Inventories

Inventories	3 Months Ended
	Apr. 30, 2015
Inventory Disclosure [Abstract]
Inventories	INVENTORIES
	Inventories consist of the following:
		April 30,		January 31,
		2015		2015
		(In thousands)
	Raw materials	$	8,153	$	10,455
	Work in process	9,397		7,362
		$	17,550	$	17,817

Goodwill

Goodwill	3 Months Ended
	Apr. 30, 2015
Goodwill, Impaired [Abstract]
Goodwill	GOODWILL
	The changes in the carrying amount of goodwill for the three months ended April 30, 2015 are as follows:
		(In thousands)
	Goodwill, gross, at January 31, 2015	$	313,277
	Accumulated impairment losses at January 31, 2015	(162,060		)
	Goodwill, net, at January 31, 2015	151,217
	BSS Business Goodwill reclassified to available for sale (1)	(83,699		)
	Effect of changes in foreign currencies and other	67
	Goodwill, net, at April 30, 2015	$	67,585
	Balance at April 30, 2015
	Goodwill, gross, at April 30, 2015	$	224,040
	Accumulated impairment losses at April 30, 2015	(156,455		)
	Goodwill, net, at April 30, 2015	$	67,585
	(1) The BSS Business Goodwill was reclassified and reflected as available for sale on the consolidated balance sheet at April 30, 2015 (see Note 14, Discontinued Operations).
	The Company tests goodwill for impairment annually as of November 1 or more frequently if events or circumstances indicate the potential for an impairment exists. Under the Company's current segment structure, the BSS and Digital Services segments have been evaluated and it has been determined that for each segment the fair value significantly exceeds the book value.
	As a result of the Amdocs Purchase Agreement for the sale the BSS Business, the Company performed an interim goodwill test in conjunction with the preparation of its financial statements for the three months ended April 30, 2015.
	The determination of whether or not goodwill is impaired involves a significant level of judgment in the assumptions underlying the approaches used to determine the estimated fair value of the Company’s reporting units as well as the allocation of the carrying value of the assets and liabilities to each of the reporting units which has historically been based on headcount. Management believes the analysis included sufficient tolerance for sensitivity in key assumptions. The determination of the fair value of the Company’s reporting units include a market-based approach using multiples of comparable companies to determine the fair value of its reporting units and an income-based approach using projected discounted cash flows based on the Company’s internal forecasts and projections. Management believes the assumptions and rates used in the Company’s impairment assessment are reasonable, but they are judgmental, and variations in any assumptions could result in materially different calculations of fair value and potentially result in impairment of assets.
	BSS Reporting Unit
	Step one of the quantitative goodwill interim impairment test for the three months ended April 30, 2015 resulted in the determination that the estimated fair value of BSS significantly exceeded its carrying amount, including goodwill. Accordingly, the second step was not required for this reporting unit.
	Digital Services Reporting Unit
	Step one of the quantitative goodwill impairment interim test resulted in the determination that the estimated fair value of Digital Services exceeded its carrying amount, including goodwill; however a step two analysis was performed on the reporting unit due to the negative carrying value of continuing assets and liabilities following the classification of BSS as an asset held for sale. The fair value of the goodwill as calculated under Step two of the impairment test exceeded the carrying value as recorded.

Intangible_Assets_Net

Intangible Assets, Net	3 Months Ended
	Apr. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, Net	INTANGIBLE ASSETS, NET
	Intangible assets, net are as follows:
		April 30,			January 31,
		2015			2015
		(In thousands)
	Acquired technology
	Gross carrying amount	$	1,822		$	99,833
	Customer relationships	—			35,499
	Trade names	—			3,400
	Total intangible assets	1,822			138,732
	Accumulated amortization	261			98,175
	Customer relationships	—			33,108
	Trade names	—			3,400
		261			134,683
	Total (1)	$	1,561		$	4,049
	(1) The BSS Business intangible assets were reclassified and reflected as available for sale on the consolidated balance sheet at April 30, 2015 (see Note 14, Discontinued Operations).
	Amortization of intangible assets was $0.1 million for the three months ended April 30, 2015. There were no impairments of intangible assets for the three months ended April 30, 2015 and 2014.
	Estimated future amortization expense on finite-lived acquisition-related assets for each of the succeeding fiscal years is as follows:
	Fiscal Years Ending January 31,		(In thousands)
	2016 (remainder of fiscal year)		$	264
	2017		349
	2018		316
	2019		316
	2020 and thereafter		316
			$	1,561

Restructuring

Restructuring	3 Months Ended
	Apr. 30, 2015
Restructuring and Related Activities [Abstract]
Restructuring	RESTRUCTURING
	The Company reviews its business, manages costs and aligns resources with market demand and in conjunction with various acquisitions. As a result, the Company has taken several actions to improve its cash position, reduce fixed costs, eliminate redundancies, strengthen operational focus and better position itself to respond to market pressures or unfavorable economic conditions. Restructuring expenses are recorded within Other operating expenses in the consolidated statements of operations.
	2015 Initiatives
	During the three months ended April 30, 2015, the Company approved the commencement of a restructuring plan primarily in connection with the MSA with Tech Mahindra which is expected to include a reduction of workforce included in cost of revenue, research and development and selling, general and administrative expenses. The aggregate cost of the plan is currently estimated at $15 million in severance-related costs, which is expected to be accrued and paid by January 2017. During the three months ended April 30, 2015, the Company recorded severance-related costs of $4.1 million and paid $0.5 million.
	2014 Initiatives
	During the fiscal year ended January 31, 2015, the Company commenced certain initiatives with a plan to further restructure its operations towards aligning operating costs and expenses with anticipated revenue. On September 9, 2014, the Company commenced an expansion of its previously disclosed 2014 restructuring plan. The restructuring plan has been facilitated by efficiencies gained through initiatives implemented in recent fiscal periods and the expectation that software will account for a higher portion of the Company's revenue in future periods. The restructuring is designed to align operating costs and expenses with currently anticipated revenue. The restructuring plan (as expanded) includes a reduction of workforce included in cost of revenue, research and development and selling, general and administrative expenses. In relation to this restructuring plan, the Company recorded severance-related and facilities-related costs of $13.0 million and $2.4 million, respectively, for the fiscal year ended January 31, 2015. During the three months ended April 30, 2015, the Company paid severance and facilities-related costs of $1.2 million and $0.4 million, respectively. The remaining severance-related and facilities-related costs accrued under the plan are expected to be paid by July, 2015 and December, 2024, respectively.
	During the fiscal year ended January 31, 2015, the Company recognized a write-off of $1.5 million in property and equipment in connection with the 2014 restructuring initiatives.
	Fourth Quarter 2012 Initiatives
	During the fourth quarter of the fiscal year ended January 31, 2013, following the Share Distribution, the Company commenced certain initiatives to restructure its operations and reorganize its activities and go-to-market strategy, including a plan to restructure the operations of the Company with a view towards aligning operating costs and expenses with anticipated revenue and the new go-to-market strategy. During the three months ended April 30, 2015, the Company paid facilities-related costs of $0.3 million. The remaining facilities-related costs accrued under this plan are expected to be paid by October 2019.
	Third Quarter 2010 Restructuring Initiatives and Business Transformation
	During the fiscal year ended January 31, 2011, the Company commenced certain initiatives to improve its cash position, including a plan to restructure its operations with a view towards aligning operating costs and expenses with anticipated revenue, reducing its annualized operating costs. During the fiscal year ended January 31, 2012, the Company implemented a second phase of measures (the “Phase II Business Transformation”) that focuses on process reengineering to maximize business performance, productivity and operational efficiency. As part of the Phase II Business Transformation, the Company restructured its operations into new business units that are designed to improve operational efficiency and business performance. One of the primary purposes of the Phase II Business Transformation is to solidify the Company’s leadership in BSS and leverage the growth in mobile data usage, while maintaining its leading market position in Digital Services and implementing further cost savings through operational efficiencies and strategic focus. The remaining facilities-related costs accrued under this plan are expected to be paid by April 2016.
	Netcentrex 2010 and 2011 Initiatives
	During the fiscal years ended January 31, 2011 and 2012, management, as part of initiatives to improve focus on the Company’s core business and to maintain its ability to face intense competitive pressures in its markets, approved the first phase of a restructuring plan to eliminate staff positions primarily located in France.
	The following tables represent a roll forward of the workforce reduction and restructuring activities noted above for the three months ended April 30, 2015 and 2014:
		2015 Initiative						2014 Initiative						Fourth Quarter 2012 Initiative			Third Quarter 2010 Initiative
		Severance			Facilities			Severance			Facilities			Facilities			Facilities			Total
		Related			Related			Related			Related			Related			Related
		(In thousands)
	January 31, 2015	$	—		$	—		$	2,843		$	1,837		$	2,872		$	214		$	7,766
	Expenses (1)	4,097			161			23			40			19			6			4,346
	Change in assumptions	—			—			(482		)	93			18			—			(371		)
	Translation and other adjustments	(1		)	—			—			—			—			—			(1		)
	Paid or utilized	(508		)	(130		)	(1,217		)	(374		)	(284		)	(49		)	(2,562		)
	April 30, 2015	$	3,588		$	31		$	1,167		$	1,596		$	2,625		$	171		$	9,178
	(1) Includes restructuring expense associated with BSS employees of $0.6 million for the three months ended April 30, 2015.
		2014 Initiative			Fourth Quarter 2012 Initiative						Third Quarter 2010 Initiative			Netcentrex 2010 and 2011 Initiative
		Severance			Severance			Facilities			Facilities			Severance			Facilities			Total
		Related			Related			Related			Related			Related			Related
		(In thousands)
	31-Jan-14	$	—		$	1,062		$	5,728		$	390		$	50		$	15		$	7,245
	Expenses (1)	2,751			38			25			6			—			—			2,820
	Change in assumptions	—			(18		)	(59		)	—			—			—			(77		)
	Translation and other adjustments	—			—			—			—			—			—			—
	Paid or utilized	(1,657		)	(892		)	(307		)	(49		)	(2		)	—			(2,907		)
	April 30, 2014	$	1,094		$	190		$	5,387		$	347		$	48		$	15		$	7,081
	(1) Includes restructuring expense associated with BSS employees of $0.9 million for the three months ended April 30, 2014.

Other_Assets

Other Assets	3 Months Ended
	Apr. 30, 2015
Other Assets [Abstract]
Other Assets	OTHER ASSETS
	Other assets consisted of the following:
			April 30,		January 31,
			2015		2015
			(In thousands)
	Severance pay fund (1)		$	11,614	$	25,759
	Deposits		2,448		2,776
	Other (2)		1,303		1,904
			$	15,365	$	30,439
	-1	Represents deposits into insurance policies to fund severance liability of the Company's Israeli employees (see Note 12, Other Long-Term Liabilities). As a result of entering into a MSA with Tech Mahindra, the Company has re-classified $11.9 million in severance pay long-term assets to Other current assets as of April 30, 2015.
	-2	Includes a $1.2 million cost-method investment in a subsidiary of a significant customer at each of April 30, 2015 and January 31, 2015.

Debt

Debt	3 Months Ended
	Apr. 30, 2015
Debt Disclosure [Abstract]
Debt	DEBT
	Spain Government Sponsored Loans
	On August 1, 2014, the Company assumed in connection with the acquisition of Solaiemes approximately $1.4 million of debt. The debt consists of Spain government sponsored loans extended for research and development projects. The loans are subject to certain acceleration clauses which are not considered probable of being triggered. As of April 30, 2015 and January 31, 2015, the balance of outstanding debt classified in accounts payable and accrued expense and long-term liabilities are as follows:
	(In thousands)	30-Apr-15		31-Jan-15
	3.98% note due 2017	$	215	$	216
	0.53% note due 2018	310		312
	2.48% notes due 2018	118		118
	3.95% note due 2020	84		84
	0% note due 2022	397		400
		1,124		1,130
	Less: current portion	132		132
	Long-term debt	$	992	$	998
	Aggregate debt maturities for each of the succeeding fiscal years are as follows:
	Fiscal Years Ending January 31,	(In thousands)
	2016 (remainder of fiscal year)	$	132
	2017	257
	2018	260
	2019	247
	2020 and thereafter	228
		$	1,124
	Comverse Ltd. Lines of Credit
	As of April 30, 2015 and January 31, 2015, Comverse Ltd., the Company’s wholly-owned Israeli subsidiary, had a $25.0 million line of credit with a bank to be used for various performance guarantees to customers and vendors, letters of credit and foreign currency transactions in the ordinary course of business. This line of credit is not available for borrowings. The line of credit bears no interest and is subject to renewal on an annual basis. Comverse Ltd. is required to maintain cash balances with the bank of no less than the capacity under the line of credit at all times regardless of amounts utilized under the line of credit. As of April 30, 2015 and January 31, 2015, Comverse Ltd. had utilized $15.3 million and $19.5 million, respectively, of capacity under the line of credit for guarantees and foreign currency transactions.
	As of April 30, 2015 and January 31, 2015, Comverse Ltd. had an additional line of credit with a bank for $10.0 million, to be used for borrowings, various performance guarantees to customers and vendors, letters of credit and foreign currency transactions in the ordinary course of business. The line of credit bears no interest other than on borrowings thereunder and is subject to renewal on an annual basis. Borrowings under the line of credit bear interest at an annual rate of London Interbank Offered Rate plus a variable margin determined based on the bank’s underlying cost of capital. Comverse Ltd. is required to maintain cash balances with the bank of no less than the capacity under the line of credit at all times regardless of amounts borrowed or utilized under the line of credit. As of April 30, 2015 and January 31, 2015, Comverse Ltd. had no outstanding borrowings under the line of credit. As of April 30, 2015 and January 31, 2015, Comverse Ltd. had utilized $6.5 million and $6.8 million, respectively, of capacity under the line of credit for guarantees and foreign currency transactions.
	Other than Comverse Ltd.’s requirement to maintain cash balances with the banks as discussed above, the lines of credit have no financial covenants. These cash balances required to be maintained with the banks were classified as “Restricted cash and bank deposits” and “Long-term restricted cash” included within the condensed consolidated balance sheets as of April 30, 2015 and January 31, 2015.

Derivatives_and_Financial_Inst

Derivatives and Financial Instruments	3 Months Ended
	Apr. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Financial Instruments	DERIVATIVES AND FINANCIAL INSTRUMENTS
	The Company entered into derivative arrangements to manage a variety of risk exposures during the three months ended April 30, 2015 and 2014, including foreign currency risk related to forecasted foreign currency denominated payroll costs. The Company assesses the counterparty credit risk for each party prior to entering into its derivative financial instruments and in valuing the derivative instruments for the periods presented.
	Forward Contracts
	During the three months ended April 30, 2015 and 2014, the Company entered into a series of short-term foreign currency forward contracts to limit the variability in exchange rates between the U.S. dollar and the new Israeli shekel to hedge probable cash flow exposure from expected future payroll expense. The transactions qualified for cash flow hedge accounting under the FASB’s guidance and there was no hedge ineffectiveness. Accordingly, the Company recorded all changes in fair value of the forward contracts as part of other comprehensive income (loss) in the condensed consolidated statements of comprehensive income (loss). Such amounts are reclassified to the statements of operations when the effects of the item being hedged are recognized. The Company’s derivatives outstanding as of April 30, 2015 are short-term in nature and are due to contractually settle within the next twelve months.
	The following tables summarize the Company’s derivative positions and their respective fair values:
		April 30, 2015
	Type of Derivative	Notional		Balance Sheet Classification		Fair Value
		Amount
		(In thousands)
	Assets
	Derivatives designated as hedging instruments
	Short-term foreign currency forward	$	25,362	Prepaid expenses and other current assets		$	312
	Total assets					$	312
		January 31, 2015
	Type of Derivative	Notional		Balance Sheet Classification		Fair Value
		Amount
		(In thousands)
	Liabilities
	Derivatives designated as hedging instruments
	Short-term foreign currency forward	$	31,123	Other current liabilities		$	117
	Total liabilities					$	117
	The following tables summarize the Company’s classification of gains and losses on derivative instruments:
		Three Months Ended April 30, 2015
		Gain (Loss)
	Type of Derivative	Recognized in		Reclassified from				Recognized in
		Other Comprehensive		Accumulated				foreign currency transaction gain (loss), net
		Income (Loss)		Other Comprehensive
				Income into
				Statement
				of Operations
		(In thousands)
	Derivatives designated as hedging instruments
	Foreign currency forward	$	322	$	(107	)		$	—
	Total	$	322	$	(107	)		$	—
		Three Months Ended April 30, 2014
		Gain (Loss)
	Type of Derivative	Recognized in		Reclassified from				Recognized in
		Other Comprehensive		Accumulated				foreign currency transaction gain (loss), net
		Income (Loss)		Other Comprehensive
				Income into
				Statement
				of Operations
		(In thousands)
	Derivatives designated as hedging instruments
	Foreign currency forward	$	251	$	128			$	—
	Total	$	251	$	128			$	—
	There were no gains or losses from ineffectiveness of these hedges recorded for the three months ended April 30, 2015 and 2014.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Apr. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS
	Under the FASB’s guidance, fair value is defined as the price that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., “the exit price”).
	In determining fair value, the Company uses various valuation approaches, including quoted market prices and discounted cash flows. The FASB's guidance also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from independent sources. Unobservable inputs are inputs that reflect a company's judgment concerning the assumptions that market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The fair value hierarchy is broken down into three levels based on the reliability of inputs as follows:
	•	Level 1 – Valuations based on quoted prices in active markets for identical instruments that the Company is able to access. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these instruments does not entail a significant degree of judgment.
	•	Level 2 – Valuations based on quoted prices in active markets for instruments that are similar, or quoted prices in markets that are not active for identical or similar instruments, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.
	•	Level 3 – Valuations based on inputs that are unobservable and significant to the overall fair value measurement.
	Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. Changes in the observability of valuation inputs may result in transfers within fair value measurement hierarchy. All transfers into and/or out of all levels are assumed to occur at the end of the reporting period. The Company did not have any transfers between levels of the fair value measurement hierarchy during the three months ended April 30, 2015 and 2014.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	The fair value of financial instruments is estimated by the Company, using available market information and appropriate valuation methodologies. However, considerable judgment is required in interpreting market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts that the Company could realize in a market exchange. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts.
	Money Market Funds. The Company values these assets using quoted market prices for such funds.
	Derivative assets and liabilities. The fair value of derivative instruments is based on quotes or data received from counterparties and third party financial institutions. These quotes are reviewed for reasonableness by discounting the future estimated cash flows under the contracts, considering the terms and maturities of the contracts and market rates for similar contracts using readily observable market prices thereof.
	The following tables present financial instruments according to the fair value hierarchy as defined by the FASB’s guidance:
	Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis as of:
		April 30, 2015
		Quoted Prices		Significant		Significant		Fair Value
		to Active		Other Observable		Unobservable
		Markets for		Inputs		Inputs
		Identical		(Level 2)		(Level 3)
		Instruments
		(Level 1)
		(In thousands)
	Financial Assets:
	Money market funds (1)	$	15,401	$	—	$	—	$	15,401
	Derivative assets	—		312		—		312
		$	15,401	$	312	$	—	$	15,713
		January 31, 2015
		Quoted Prices		Significant		Significant		Fair Value
		to Active		Other		Unobservable
		Markets for		Observable		Inputs
		Identical		Inputs		(Level 3)
		Instruments		(Level 2)
		(Level 1)
		(In thousands)
	Financial Assets:
	Money market funds (1)	$	20,401	$	—	$	—	$	20,401
		$	20,401	$	—	$	—	$	20,401
	Financial Liabilities:
	Embedded derivatives	$	—	$	117	$	—	$	117
		$	—	$	117	$	—	$	117
	-1	Money market funds are classified in “Cash and cash equivalents” within the condensed consolidated balance sheets.
	Assets and Liabilities Not Measured at Fair Value on a Recurring Basis
	In addition to assets and liabilities that are measured at fair value on a recurring basis, the Company also measures certain assets and liabilities at fair value on a nonrecurring basis. The Company measures non-financial assets, classified within Level 3 of the fair value hierarchy, including goodwill, intangible assets and property and equipment, at fair value when there is an indication of impairment. These assets are recorded at fair value only when an impairment expense is recognized. The Company has elected not to apply the fair value option for non-financial assets and non-financial liabilities.
	The carrying amounts of cash and cash equivalents, restricted cash and bank deposits, accounts receivable and accounts payable are reasonable estimates of their fair value.

Other_LongTerm_Liabilities

Other Long-Term Liabilities	3 Months Ended
	Apr. 30, 2015
Other Liabilities Disclosure [Abstract]
Other Long-Term Liabilities	OTHER LONG-TERM LIABILITIES
	Other long-term liabilities consisted of the following:
		April 30,			January 31,
		2015			2015
		(In thousands)
	Liability for severance pay (1)	$	17,235		$	36,166
	Tax contingencies	85,803			85,782
	Long-term debt	992			998
	Other long-term liabilities	10,509			12,510
	Total	$	114,539		$	135,456
	(1) As a result of entering into a MSA with Tech Mahindra, the Company has re-classified $15.6 million in severance pay long-term liabilities to Accounts payable and accrued expense as of April 30, 2015.
	Under Israeli law, the Company is obligated to make severance payments under certain circumstances to employees of its Israeli subsidiaries on the basis of each individual’s current salary and length of employment. The Company’s liability for severance pay is calculated pursuant to Israel’s Severance Pay Law based on the most recent monthly salary of the employee multiplied by the number of years of employment, as of the balance sheet date. The liability for severance pay is recognized as compensation benefits in the condensed consolidated statements of operations. Employees are entitled to one month’s salary for each year of employment or a portion thereof.  The Company records the obligation as if it was payable at each balance sheet date.  A portion of such severance liability is funded by monthly deposits into insurance policies, which are restricted to only be used to satisfy such severance payments. Any change in the fair value of the asset is recognized as an adjustment to compensation expense in the condensed consolidated statements of operations. The asset and liability are recognized gross and not offset on the condensed consolidated balance sheet. Upon involuntary termination, employees will receive the balance from deposited funds from the insurance policies with the remaining balance paid by the Company. For voluntarily termination the employees are entitled, based on Company's policy, to the balance in the deposited funds. Any remaining net liability balance is reversed as compensation benefits in the condensed consolidated statements of operations.
	For employees in Israel hired after January 2011, the Company makes regular deposits with certain insurance companies for accounts controlled by each applicable employee in order to secure the employee's rights upon termination. The Company is relieved from any severance pay liability with respect to deposits made on behalf of each employee. As such, the severance plan is only defined by the monthly contributions made by the Company, the liability accrued in respect of these employees and the amounts funded are not reflected in the Company's condensed balance sheets. The portion of liability not funded is included in Other liabilities in the condensed consolidated balance sheets.
	A portion of such severance liability is funded by monthly deposits into insurance policies, which are restricted to only be used to satisfy such severance payments. The amount of deposits is classified in “Other assets” within the condensed consolidated balance sheets as severance pay fund in the amounts of $11.6 million and $25.8 million as of April 30, 2015 and January 31, 2015, respectively.
	Severance pay expenses pursuant to Israel’s Severance Pay Law were as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Increase due to passage of time	$	754		$	1,034
	Increase due to salary increase	126			227
	Reversal due to voluntary termination of employee	(105		)	(147		)
	Loss (gain) from change in fund value	(23		)	25
	Total operating expense due to Israeli Severance Law	$	752		$	1,139

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Apr. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION
	2012 Stock Incentive Compensation Plan
	In October 2012, in connection with the Share Distribution the Company adopted the Comverse, Inc. 2012 Stock Incentive Compensation Plan (the "2012 Incentive Plan"). The 2012 Incentive Plan provides for the issuance of non-qualified stock options, incentive stock options, stock appreciation rights, restricted stock, performance-based compensation awards and other stock-based awards (referred to collectively as the "Awards") based on shares of the Company's common stock (referred to as "Shares"). The Company's employees, non-employee directors and consultants as well as employees and consultants of its subsidiaries and affiliates are eligible to receive Awards.
	A total of 2.5 million Shares are reserved for issuance under future Awards to be granted under the 2012 Incentive Plan following the effective date of the plan (referred to as the "Future Awards").
	As of April 30, 2015, stock options to purchase 1,048,211 Shares and additional Awards covering 470,577 Shares were outstanding. As of April 30, 2015, an aggregate of 1,202,768 Future Awards are available for future grant under the 2012 Incentive Plan.
	Share-Based Awards
	Stock-based compensation expense associated with awards for the three months ended April 30, 2015 and 2014 included in the condensed consolidated statements of operations is as follows:
		Three Months Ended April 30,
		2015		2014
		(In thousands)
	Stock options:
	Service costs	$	21	$	41
	Research and development	49		39
	Selling, general and administrative	617		383
		687		463
	Restricted/Deferred stock awards:
	Service costs	762		929
	Research and development	216		318
	Selling, general and administrative	1,391		1,228
		2,369		2,475
	Total (1)	$	3,056	$	2,938
	(1) Includes stock-based compensation expense associated with awards granted to BSS employees of $0.7 million and $0.8 million, respectively, for the three months ended April 30, 2015 and 2014.
	Restricted Awards and Stock Options
	The Company grants restricted stock unit awards subject to vesting provisions (“RSUs”) and stock options to certain key employees and director stock unit awards (“DSUs”) to non-employee directors (such RSUs and DSUs collectively referred to as “Restricted Awards”). For the three months ended April 30, 2015 and 2014, the Company did not grant any Restricted Awards or stock options.
	During the three months ended April 30, 2014, 1,365 were issued upon exercise of stock options under the 2012 Incentive Plan. Total proceeds from these Shares were negligible. For the three months ended April 30, 2015, there were no shares issued upon exercise of stock options under the 2012 Incentive Plan.
	The fair market value of the Company's Restricted Awards that vested during the three months ended April 30, 2015 and 2014, was $2.2 million and $6.1 million, respectively.
	As of April 30, 2015, the unrecognized Company compensation expense, net of estimated forfeitures, related to unvested Restricted Awards was $7.0 million, which is expected to be recognized over a weighted-average period of 1.78 years.
	The Company's outstanding stock options as of April 30, 2015 include unvested stock options to purchase 669,151 Shares with a weighted-average grant date fair value of $9.19, an expected term of 4.0 years and a total fair value of $6.1 million. The unrecognized compensation expenses related to the remaining unvested stock options to purchase Shares was $3.7 million, which is expected to be recognized over a weighted-average period of 1.78 years.

DISCOUNTINUED_OPERATIONS_Notes

DISCOUNTINUED OPERATIONS (Notes)	3 Months Ended
	Apr. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	DISCONTINUED OPERATIONS
	Amdocs Asset Purchase Agreement
	The Company decided to sell its BSS Business in order to focus on its existing Digital Services business including IP communication which is expected to experience growth.
	On April 29, 2015, the Company entered into a Amdocs Purchase Agreement with Amdocs Limited, a Guernsey company (the “Purchaser”). Pursuant to the Amdocs Purchase Agreement, the Company agreed to sell substantially all of its assets required for operating the Company’s converged, prepaid and postpaid billing and active customer management systems for wireless, wireline, cable and multi-play communication service providers (the “BSS Business”) to the Purchaser, and the Purchaser has agreed to assume certain liabilities of the Company, in exchange for a cash purchase price of $272 million, subject to various purchase price adjustments.
	The Amdocs Purchase Agreement contains customary representations and warranties of the parties and covenants of the Company. Under the terms of the Amdocs Purchase Agreement, upon the closing of the Asset Sale, $26 million of the purchase price will be deposited into escrow to fund potential indemnification claims and certain adjustments for a period of twelve (12) months following the closing. The Company and the Purchaser will also enter into other ancillary transaction documents at closing. The closing of the Asset Sale is subject to the applicable regulatory approvals and other closing conditions.
	The Amdocs Purchase Agreement may be terminated prior to the closing of the Asset Sale upon certain events, including by written agreement of the Company and the Purchaser, or by either the Company or the Purchaser if the Asset Sale has not closed by August 29, 2015 or if a permanent injunction or other order prohibiting the closing has been issued by a governmental entity.
	Pursuant to the Amdocs Purchase Agreement, the Company has agreed generally, but with some enumerated exceptions, to carry on its BSS Business in the ordinary course during the period from the date of the Amdocs Purchase Agreement to the completion of the Asset Sale.
	In connection with the Amdocs Purchase Agreement, the Company and the Purchaser have also entered into a Transition Services Agreement (the “TSA”), which provides for several support services between the Company and the Purchaser in connection with the transition of the BSS Business to the Purchaser, and for various periods up to 12 months of services following the closing of the Asset Sale. Either party may terminate the TSA if the Amdocs Purchase Agreement is terminated.
	The BSS Business met the criteria to be classified as held for sale as well as discontinued operations. As such, the BSS Business has been reclassified and reflected as discontinued operations on the consolidated statements of operations for all periods presented. The estimated assets and liabilities related to BSS Business were reclassified and reflected as available for sale on the consolidated balance sheet at April 30, 2015.
	Upon completion of the sale, the Company will pay a commission of approximately $4.0 million to its advisors.
	The table below provides a breakout of the discontinued operations statements of operations.
		Three Months Ended April 30,
		2015			2014
	Revenue:
	Product revenue	$	9,473		$	10,346
	Service revenue	39,115			43,703
	Total revenue	48,588			54,049
	Costs and expenses:
	Product costs	5,833			4,910
	Service costs	22,676			24,669
	Research and development, net	4,150			7,173
	Selling, general and administrative	7,154			8,584
	Other operating expenses:
	Restructuring expenses	567			871
	Total other operating expenses	567			871
	Total costs and expenses	40,380			46,207
	Income from operations	8,208			7,842
	Benefit (provision) for income taxes	5,111			(1,878		)
	Net income from discontinued operations	$	13,319		$	5,964
	Components of assets and liabilities held for sale (in thousands):
			April 30,
			2015
	ASSETS
	Current assets:
	Accounts receivable, net of allowance of $653		$	38,315
	Deferred cost of revenue		4,042
	Other current assets		8,345
	Total current assets		50,702
	Property and equipment, net		8,794
	Goodwill		83,797
	Intangible assets, net		1,700
	Deferred cost of revenue		7,114
	Other assets		2,722
	Total assets		$	154,829
	LIABILITIES AND (DEFICIT) EQUITY
	Current liabilities:
	Accounts payable and accrued expenses		$	28,725
	Deferred revenue		73,334
	Total current liabilities		102,059
	Deferred revenue		27,738
	Other long-term liabilities		3,549
	Total liabilities		$	133,346
	Stock-based compensation expense associated with awards for the three months ended April 30, 2015 and 2014 included in the discontinued operations statements of operations is as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Stock options:
	Service costs	$	5		$	1
	Research and development	—			4
	Selling, general and administrative	43			25
		48			30
	Restricted/Deferred stock awards:
	Service costs	376			419
	Research and development	49			149
Selling, general and administrative	206			187
	631			755
Total (1)	$	679		$	785

Stockholders_Equity_and_Accumu

Stockholders Equity and Accumulated Other Comprehensive Income	3 Months Ended
	Apr. 30, 2015
Equity [Abstract]
Equity Attributable to Comverse, Inc. and Noncontrolling Interest	EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME
	Components of (deficit) equity are as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Balance, January 31	$	13,382		$	32,810
	Net loss	(26,661		)	(16,131		)
	Unrealized gain for cash flow hedge positions, net of reclassification adjustments and net of zero tax	429			123
	Foreign currency translation adjustment	2,695			(2,462		)
	Stock-based compensation expense	3,056			2,938
	Exercises of stock options	—			40
	Repurchase of common stock in connection with tax liabilities upon settlement of stock awards	(81		)	(386		)
	Balance, April 30	$	(7,180	)	$	16,932
	Accumulated Other Comprehensive Income
	The components of Accumulated Other Comprehensive Income (“AOCI”), net of zero tax, were as follows (in thousands, unaudited):
		Foreign Currency Translation Adjustments			Unrealized Gains on Cash Flow Hedges			Total
	Balance as of January 31, 2015	$	30,939		$	(117	)	$	30,822
	Other comprehensive income before reclassifications	2,695			322			3,017
	Amounts reclassified from AOCI	—			107			107
	Other comprehensive income	2,695			429			3,124
	Balance as of April 30, 2015	$	33,634		$	312		$	33,946
		Foreign Currency Translation Adjustments			Unrealized Gains on Cash Flow Hedges			Total
	Balance as of January 31, 2014	$	23,274		$	58		$	23,332
	Other comprehensive (loss) income before reclassifications	(2,462		)	251			(2,211		)
	Amounts reclassified from AOCI	—			(128		)	(128		)
	Other comprehensive (loss) income	(2,462		)	123			(2,339		)
	Balance as of April 30, 2014	$	20,812		$	181		$	20,993
	The amounts of unrealized losses (gains) on cash flow hedges reclassified out of accumulated other comprehensive income (loss) into the condensed consolidated condensed statements of operations, with presentation location, were as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Cost of revenue	$	47		$	(62	)
	Research and development, net	20			(19		)
	Selling, general and administrative	40			(47		)
	Total	$	107		$	(128	)
	Net Operating Loss Rights Agreement
	Effective April 29, 2015, the Company's Board of Directors adopted a rights plan (the “Rights Plan”) and declared a dividend of one preferred share purchase right for each outstanding share of common stock. The dividend is payable to our stockholders of record as of May 11, 2015.
	The Company's Board of Directors adopted the Rights Plan in an effort to protect stockholder value by attempting to diminish the risk that the Company's ability to use its net operating losses and unrealized losses (collectively, the “NOLs”) to reduce potential future federal income tax obligations may become substantially limited. The Company has experienced and may continue to experience substantial operating losses, including realized losses for tax purposes from sales inventory previously written down for financial statement purposes, which would produce NOLs. Under the Internal Revenue Code and regulations promulgated by the U.S. Treasury Department, the Company may “carry forward” these NOLs in certain circumstances to offset any current and future taxable income and thus reduce our federal income tax liability, subject to certain requirements and restrictions. To the extent that the NOLs do not otherwise become limited, the Company projects to be able to carry forward a significant amount of NOLs, and therefore these NOLs could be a substantial asset to the Company. However, if the Company experiences an “Ownership Change,” as defined in Section 382 of the Internal Revenue Code, the ability to use the NOLs, including NOLs later arising from sales inventory previously written down, will be substantially limited, and the timing of the usage of the NOLs could be substantially delayed, which could therefore significantly impair the value of that asset.
	The Rights Plan is intended to act as a deterrent to any person or group acquiring 4.9% or more of our outstanding common stock (an “Acquiring Person”) without the approval of the Company's Board of Directors. Stockholders who own 4.9% or more of our outstanding common stock as of the close of business on May 11, 2015 will not trigger the Rights Plan so long as they do not (i) acquire any additional shares of common stock or (ii) fall under 4.9% ownership of common stock and then re-acquire 4.9% or more of the common stock of the Company. The Rights Plan does not exempt any future acquisitions of common stock by such persons. Any rights held by an Acquiring Person are void and may not be exercised. The Board of Directors may, in its sole discretion, exempt any person or group from being deemed an Acquiring Person for purposes of the Rights Plan.
	The Company's Board of Directors authorized the issuance of one right per each outstanding share of our common stock payable to our stockholders of record as of May 11, 2015. Subject to the terms, provisions and conditions of the Rights Plan, if the rights become exercisable, each right would initially represent the right to purchase from us one one-thousandth of a share of our Series A Junior Participating Preferred Stock (the “Series A Preferred Stock”) for a purchase price of $100.00 (the “Purchase Price”). If issued, each fractional share of preferred stock would give the stockholder approximately the same dividend, voting and liquidation rights as does one share of our common stock. However, prior to exercise, a right does not give its holder any rights as a stockholder of the Company, including without limitation any dividend, voting or liquidation rights.
	The rights and the Rights Plan will expire on the earliest of (i) April 29, 2018, (ii) the time at which the rights are redeemed pursuant to the Rights Agreement, (iii) the time at which the rights are exchanged pursuant to the Rights Agreement, (iv) the repeal of Section 382 of the Code or any successor statute if the Board of Directors determines that the Rights Agreement is no longer necessary for the preservation of Tax Benefits, (v) the beginning of a taxable year of the Company to which the Board of Directors determines that no Tax Benefits may be carried forward and (vi) April 29, 2016 if Stockholder Approval has not been obtained.
	The Company submitted the Rights Plan for stockholder approval at the 2015 Annual Meeting of Stockholders scheduled for June 24, 2015.

Loss_per_Share

Loss per Share	3 Months Ended
	Apr. 30, 2015
Earnings Per Share [Abstract]
Earnings (Loss) Per Share Attributable to Comverse, Inc.'s Stockholders	PER SHARE
	Basic loss per share is computed using the weighted average number of shares of common stock outstanding. For purposes of computing diluted loss per share attributable to the Company's stockholders, shares issuable upon exercise of stock options and deliverable in settlement of unvested Restricted Awards are included in the weighted average number of shares of common stock outstanding, except when the effect would be antidilutive.
	The calculation of loss per share is as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands, except per share data)
	Numerator:
	Net loss attributable to continuing operations	$	(39,980	)	$	(22,095	)
	Net earnings attributable to discontinued operations	13,319			5,964
	Denominator:
	Basic & diluted weighted average common shares outstanding	21,865			22,294
	(Loss) earnings per share basic and diluted:
	Loss per share from continuing operations	$	(1.83	)	$	(0.99	)
	Earnings per share from discontinued operations	0.61			0.27
	Basic and diluted loss per share	$	(1.22	)	$	(0.72	)
	As a result of the Company’s net loss during the three months ended April 30, 2015 and 2014, the diluted earnings per share computation excludes 0.1 million and 0.3 million shares, respectively, of stock-based awards from the calculations because their inclusion would have been anti-dilutive.

Income_Taxes

Income Taxes	3 Months Ended
	Apr. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES
	The Company's quarterly provision for income taxes is measured using an annual effective tax rate, adjusted for discrete items that occur within the periods presented. The significant differences that impact the effective tax rate relate to the difference between the U.S. federal statutory rate and the rates in foreign tax jurisdictions, withholding taxes, incremental valuation allowances and tax contingencies.
	The Company recorded an income tax expense from operations of $4.8 million for the three months ended April 30, 2015, representing an effective tax rate of (13.6)% compared with an income tax expense from operations of $2.5 million, representing an effective tax rate of (12.5)% for the three months ended April 30, 2014. During the three months ended April 30, 2015 and 2014, the effective tax rates were different from the U.S. statutory rate primarily due to the fact that the Company did not record an income tax benefit on losses incurred in certain of the Company's U.S. and foreign tax jurisdictions in which the Company maintains valuation allowances against the Company's net deferred tax assets. The income tax provisions from operations are comprised of income tax expense recorded in non-loss tax jurisdictions, withholding taxes, incremental valuation allowances and certain tax contingencies. The change in the Company's effective tax rate for the three months ended April 30, 2015, compared to the three months ended April 30, 2014 was primarily attributable to changes in the relative mix of income and losses across various tax jurisdictions, and the fact that the Company has to compute a separate effective tax rate for certain tax jurisdictions incurring losses.
	As required by the authoritative guidance on accounting for income taxes, the Company evaluates the realizability of deferred tax assets on a tax jurisdictional basis at each reporting date. Accounting for income taxes requires that a valuation allowance be established when it is more-likely-than-not that all or a portion of the deferred tax assets will not be realized. In circumstances where there is sufficient negative evidence indicating that the deferred tax assets are not more-likely-than-not realizable, the Company establishes a valuation allowance. The Company determined that there is sufficient negative evidence to maintain valuation allowances against certain of the Company's federal, state and foreign deferred tax assets as a result of historical losses in the most recent three-year period in the U.S. and certain state and foreign tax jurisdictions. During the three months ended April 30, 2015, the Company reassessed its valuation allowance requirements taking into consideration the Share Distribution and concluded that it intends to maintain its valuation allowance until sufficient positive evidence exists to support its reversal. When we complete the disposition of the BSS business, which met the held-for-sale criteria in ASC 360 as of April 30, 2015, we will reevaluate whether, based on the existing positive and negative evidence at that time, a portion or all of the valuation allowance maintained against our deferred tax assets may be released.
	The Company regularly assesses the adequacy of the Company's provisions for income tax contingencies in accordance with the applicable authoritative guidance on accounting for income taxes. As a result, the Company may adjust the reserves for unrecognized tax benefits for the impact of new facts and developments, such as changes to interpretations of relevant tax law, assessments from taxing authorities, settlements with taxing authorities, and lapses of statutes of limitation. As of April 30, 2015, the total amount of unrecognized tax benefits that, if recognized, would impact the Company's effective tax rate were approximately $85.8 million (see Note 12, Other Long-Term Liabilities). The Company believes that it is reasonably possible that the total amount of unrecognized tax benefits as of April 30, 2015 could decrease by approximately $36.0 million within the next twelve months as a result of settlements of certain tax audits or lapses of statutes of limitation. Such decreases may involve the payment of additional taxes, the adjustment of deferred taxes, including the need for additional valuation allowances and the recognition of tax benefits.
	The Company's policy is to include interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes in the condensed consolidated statements of operations. Accrued interest and penalties was $39.4 million as of April 30, 2015.
	As of January 31, 2015, the Company operated in Israel under a “Preferred Enterprise” program pursuant to the Law for Encouragement of Capital Investments, 1959, subject to an alternative income tax rate of 16%. In the first quarter of the fiscal year ended January 31, 2016, the Company entered into a master service agreement with Tech Mahindra (India). Following this agreement, the company is not expected to fulfill the direct local manufacturing employment requirement of the program. Accordingly, the alternative income tax rate of 16% no longer applies and the general corporate income tax rate of 26.5% is applicable for the entire fiscal year ended January 31, 2016. The change in corporate income tax rate results in a $48.5 million increase to the fiscal year ended January 31, 2016 opening net deferred tax assets and to offsetting valuation allowance, with no net impact on income tax expense.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Apr. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES
	Indemnifications
	In the normal course of business, the Company provides indemnifications of varying scopes to customers against claims of intellectual property infringement made by third parties arising from the use of the Company's products. The Company evaluates its indemnifications for potential losses and in its evaluation considers such factors as the degree of probability of an unfavorable outcome and the ability to make a reasonable estimate of the amount of loss. Generally, the Company has not encountered significant expenses as a result of such indemnification provisions.
	To the extent permitted under state laws or other applicable laws, the Company has agreements in which it agreed to indemnify its directors and officers for certain events or occurrences while the director or officer is, or was, serving at the Company's request in such capacity. The indemnification period covers all pertinent events and occurrences during the Company's director's or officer's lifetime. The maximum potential amount of future payments that the Company could be required to make under these indemnification agreements is unlimited; however, the Company has certain director and officer insurance coverage that limits the Company's exposure and enables the Company to recover a portion of any future amounts paid. The Company is not able to estimate the fair value of these indemnification agreements in excess of applicable insurance coverage, if any.
	In addition, under the Share Distribution Agreements the Company entered into in connection with the Share Distribution, the Company has agreed to indemnify CTI and its affiliates (including Verint following the Verint Merger) against certain losses that may arise as a result of the Verint Merger and the Share Distribution (see Note 3, Share Distribution Agreements). On February 4, 2013, in connection with the closing of the Verint Merger Agreement, CTI placed $25.0 million in escrow to support indemnification claims to the extent made against the Company by Verint and any cash balance remaining in such escrow fund 18 months after the closing of the Verint Merger, less any claims made on or prior to such date, to be released to the Company. On August 6, 2014, the escrow was released in accordance with its terms and the Company received the escrow amount of approximately $25.0 million.
	As a result of the Verint Merger, Verint assumed certain rights and liabilities of CTI, including any liability of CTI arising out of the actions discussed below. Under the terms of the Distribution Agreement between CTI and us relating to the Share Distribution, Verint, as successor to CTI, is entitled to indemnification from us for any losses it suffers in its capacity as successor-in-interest to CTI in connection with these actions. As of the closing of the Verint Merger, the Company recognized the estimated fair value of the potential indemnification liability (see Note 1, Organization, Business and Summary of Significant Accounting Policies).
	Israeli Optionholder Class Action
	CTI and certain of its former subsidiaries, including Comverse Ltd. (a subsidiary of the Company), were named as defendants in four potential class action litigations in the State of Israel involving claims to recover damages incurred as a result of purported negligence or breach of contract due to previously-settled allegations regarding illegal backdating of CTI options that allegedly prevented certain current or former employees from exercising certain stock options. The Company intends to vigorously defend these actions.
	Two cases were filed in the Tel Aviv District Court against CTI on March 26, 2009, by plaintiffs Katriel (a former Comverse Ltd. employee) and Deutsch (a former Verint Systems Ltd. employee). The Katriel case (Case Number 1334/09) and the Deutsch case (Case Number 1335/09) both seek to approve class actions to recover damages that are claimed to have been incurred as a result of CTI’s negligence in reporting and filing its financial statements, which allegedly prevented the exercise of certain stock options by certain employees and former employees. By stipulation of the parties, on September 30, 2009, the court ordered that these cases, including all claims against CTI in Israel and the motion to approve the class action, be stayed until resolution of the actions pending in the United States regarding stock option accounting, without prejudice to the parties’ ability to investigate and assert the unique facts, claims and defenses in these cases. On May 7, 2012, the court lifted the stay, and the plaintiffs have filed an amended complaint and motion to certify a class of plaintiffs in a single consolidated class action. The defendants responded to this amended complaint on November 11, 2012, and the plaintiffs filed a further reply on December 20, 2012. A pre-trial hearing for the case was held on December 25, 2012, during which all parties agreed to attempt to settle the dispute through mediation.
	The mediation process ended without success. According to the parties’ consent to submit summations in the motion to certify the claims as a class action, including the certification of the class of plaintiffs, the court held the following dates for submission of summations: Summations on behalf of the plaintiffs were submitted on August 31, 2014; Summations on behalf of the defendants were submitted on November 20, 2014; and summations of response by the plaintiffs were submitted on December 30, 2014. On February 9, 2015, the Judge presiding over the case recused herself due to a conflict of interests. On March 30, 2015, the plaintiffs filed a motion to the Court seeking to have the case assigned to a new presiding Judge and as a result on April 4, 2015 a new presiding judge was assigned to the case. The parties are now awaiting for the Court’s decision.
	Separately, on July 13, 2012, plaintiffs filed a motion seeking an order that CTI hold back $150 million in assets as a reserve to satisfy any potential damage awards that may be awarded in this case, but did not seek to enjoin the Share Distribution. On July 25, 2012, the court decided that it will not rule on the motion until after it rules on plaintiffs’ motion to certify a class of plaintiffs. On August 16, 2012, plaintiffs filed a motion for leave to appeal the court’s decision to the Israeli Supreme Court (the “Appeal”) and on November 11, 2012, CTI responded to plaintiff's motion.
	On July 1, 2014, the plaintiffs filed a motion to the Supreme Court to withdraw the Appeal and accordingly the Appeal was dismissed.
	Two cases were also filed in the Tel Aviv Labor Court by plaintiffs Katriel and Deutsch, and both sought to approve class actions to recover damages that are claimed to have been incurred as a result of breached employment contracts, which allegedly prevented the exercise by certain employees and former employees of certain CTI and Verint stock options, respectively. The Katriel litigation (Case Number 3444/09) was filed on March 16, 2009, against Comverse Ltd., and the Deutsch litigation (Case Number 4186/09) was filed on March 26, 2009, against Verint Systems Ltd. The Tel Aviv Labor Court has ruled that it lacks jurisdiction, and both cases have been transferred to the Tel Aviv District Court. These cases have been consolidated with the Tel Aviv District Court cases discussed above.
	The Company has not accrued for these matters as the potential loss is currently not probable or estimable.
	An additional case has been filed by an individual plaintiff in the Tel Aviv District Court similarly seeking to recover damages up to an aggregate of $3.3 million allegedly incurred as a result of the inability to exercise certain stock options. The case generally alleges the same causes of actions alleged in the potential class action discussed above. The parties conducted a mediation process that ended without success. On June 26, 2014 the Court ordered the plaintiff to notify it why not to transfer the claim to the Labor Court. On July 10, 2014, the plaintiff filed a notice to court according to which the subject-matter jurisdiction is reserved to the District Court. The Court did not accept the plaintiff's argument and has assigned the case to the Labor Court. A preliminary hearing at the Labor court is scheduled for July 8, 2015. The Company has not accrued for this matter as the potential loss is currently not probable or estimable.
	Starhome Sale and Indemnification
	Starhome was a CTI subsidiary (66.5% owned prior to the disposition). On September 19, 2012, CTI, in order to ensure it could meet the conditions of the Verint Merger, contributed to the Company its interest in Starhome, including its rights and obligations under the Starhome Share Purchase Agreement discussed below. The Starhome Disposition was completed on October 19, 2012.
	Under the terms of the Starhome Share Purchase Agreement, Starhome’s shareholders received aggregate cash proceeds of approximately $81.3 million, subject to adjustment for fees, transaction expenses and certain taxes. Of this amount, $10.5 million is held in escrow to cover potential post-closing indemnification claims, with $5.5 million being released after 18 months and the remainder released after 24 months, in each case, less any claims made on or prior to such dates. The Company received aggregate net cash consideration (including $4.9 million deposited in escrow at closing) of approximately $37.2 million, after payments that CTI agreed to make to certain other Starhome shareholders of up to $4.5 million. The escrow funds were available to satisfy certain indemnification claims under the Starhome Share Purchase Agreement to the extent that such claims exceeded $1.0 million. During the fiscal year ended January 31, 2015, the Company received approximately $4.7 million in settlement of escrow.
	Amdocs Asset Purchase Agreement
	On April 29, 2015, the Company entered into a Purchase Agreement with Amdocs Limited, a Guernsey company (the “Purchaser”). Pursuant to the Amdocs Purchase Agreement, the Company agreed to sell substantially all of its assets required for operating the Company’s BSS Business to the Purchaser, and the Purchaser has agreed to assume certain liabilities of the Company, in exchange for a cash purchase price of $272 million, subject to various purchase price adjustments.
	The Amdocs Purchase Agreement contains customary representations and warranties of the parties and covenants of the Company. Under the terms of the Amdocs Purchase Agreement, upon the closing of the Asset Sale, $26 million of the purchase price will be deposited into escrow to fund potential indemnification claims and certain adjustments for a period of twelve (12) months following the closing. The Company and the Purchaser will also enter into other ancillary transaction documents at closing. The closing of the Asset Sale is subject to the applicable regulatory approvals and other closing conditions.
	Agreement with Tech Mahindra
	On April 14, 2015, the Company entered into a MSA with Tech Mahindra pursuant to which Tech Mahindra will perform certain services for the Company’s Digital Services business on a global basis. The services include research and development, project deployment and delivery and maintenance and support for customers of the Company’s Digital Service business. In connection with the transaction, up to approximately 570 employees of the Company and its subsidiaries may be rehired by Tech Mahindra or its affiliates. However, under the terms of the MSA, where applicable, Tech Mahindra’s provision of such services (and any employee rehire) is contingent upon local decisions for Company entities to enter into the agreement on a country-by-country basis after the completion of all regulatory and compliance requirements under applicable law. Under the MSA, the Company is obligated to pay to Tech Mahindra in the aggregate approximately $211 million in base fees for services to be provided pursuant to the MSA for a term of six years, renewable at the Company’s option. The Company's expected obligation is $23 million, $40 million, $39 million, $36 million, $32 million, $29 million and $12 million, for fiscal years ended January 31, 2016, 2017, 2018, 2019, 2020, 2021 and 2022, respectively. The services under the MSA started on June 1, 2015.
	The Company has the right to terminate the MSA for convenience subject to the payment of certain termination fees. The Company may terminate the MSA upon certain material breaches, certain material performance failures or violations of applicable law by Tech Mahindra without termination fees. Tech Mahindra may terminate the MSA upon certain material breaches by the Company, including the failure to pay undisputed amounts. Upon any termination or expiration, Tech Mahindra will provide reverse transition services to transition the services being provided by Tech Mahindra pursuant to the MSA back to the Company or its designee. The MSA contains certain customary indemnification provisions by both Comverse and Tech Mahindra.
	Guarantees
	The Company provides certain customers in the ordinary course of business with financial performance guarantees, which in certain cases are backed by standby letters of credit or surety bonds, the majority of which are cash collateralized and accounted for as restricted cash and bank deposits. The Company is only liable for the amounts of those guarantees in the event of its nonperformance, which would permit the customer to exercise the guarantee. As of April 30, 2015 and January 31, 2015, the Company believes that it was in compliance with its performance obligations under all contracts for which there is a financial performance guarantee, and that any liabilities arising in connection with these guarantees will not have a material adverse effect on the Company’s condensed consolidated results of operations, financial position or cash flows. The Company also obtained bank guarantees primarily to provide customer assurance relating to the performance of certain obligations required by customer agreements for the guarantee of certain payment obligations. These guarantees, which aggregated $24.5 million and $29.0 million as of April 30, 2015 and January 31, 2015, respectively, are generally scheduled to be released upon the Company’s performance of specified contract milestones, a majority of which are scheduled to be completed at various dates through May 30, 2016.
	Legal Proceedings
	From time to time, the Company and its subsidiaries are subject to claims in legal proceedings arising in the normal course of business. The Company does not believe that it or its subsidiaries are currently party to any pending legal action not described herein or disclosed in the consolidated financial statements that could reasonably be expected to have a material adverse effect on its business, financial condition or results of operations.
	Brazil Tax and Labor Contingencies
	The Company's operations in Brazil are involved in various litigation matters and have received or been the subject of numerous governmental assessments related to indirect and other taxes, as well as disputes associated with former Company employees. The tax matters, which comprise a significant portion of the contingencies, principally relate to claims for taxes on the transfers of inventory, municipal service taxes on rentals and gross revenue taxes. The Company is disputing these tax matters and intends to vigorously defend its positions. The labor matters principally relate to claims made by former Company employees for pay wages, social security and other related labor benefits, as well as related tax obligations. As of April 30, 2015, the total amounts related to the reserved portion of the tax and labor contingencies was $0.1 million and the unreserved portion of the tax and labor contingencies totaled approximately $7.6 million. With respect to the unreserved balance, these have been assessed by management as being either remote or possible as to the likelihood of ultimately resulting in a loss to the Company. Local laws and regulations often require that the Company make deposits or post other security in connection with such proceedings. As of April 30, 2015, the Company had $5.4 million of deposits, included in Long-term restricted cash, with the government in Brazil for claims that the Company is disputing which provides security with respect to these matters. Generally, any deposits would be refundable to the extent the matters are resolved in the Company's favor. Management routinely assesses these matters as to probability of ultimately incurring a liability against the Company's Brazilian operations and the Company records its best estimate of the ultimate loss in situations where management assesses the likelihood of an ultimate loss as probable.

Subsequent_Events_Notes

Subsequent Events (Notes)	3 Months Ended
	Apr. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS
	On June 15, 2015, the Company entered into an agreement (the “Acision Purchase Agreement”) with Bergkamp Coöperatief U.A., a cooperative with excluded liability formed under the laws of the Netherlands (the “Seller”) relating to the sale and purchase of Acision Global Limited, a private company formed under the laws of the United Kingdom (“Acision”). Acision is a provider of messaging software solutions to CSPs and enterprises, including SMSC, MMS, IM and IP messaging. The Company acquired Acision to complement its solution portfolio, enhance its market leadership, penetrate growth markets and improve its operational efficiency.
	Pursuant to the Acision Purchase Agreement, the Company will acquire all of the equity securities of and voting interests in Acision for a purchase price consisting of approximately $135 million in cash, certain earnout payments (as discussed below) and 3.13 million shares of the Company’s common stock, par value $0.01 per share (the “Consideration Shares”) which will be issued in a private placement transaction conducted pursuant to Section 4(a)(2) or Regulation S under the Securities Act of 1933, as amended, subject to certain adjustments (the “Transaction”). The Company expects to finance the cash portion of the purchase price with cash-on-hand. The parties have further agreed that an amount up to $35 million of cash consideration will be subject to an earnout, contingent on the achievement of certain revenue objectives by certain of the Acision’s business lines. To secure claims the Company may have under the Acision Purchase Agreement, $10 million of the initial cash consideration will be retained in escrow, which amount will be increased in the event that further consideration is triggered under the earnout, up to a total maximum aggregate escrow retention of $25 million. Such funds will be released to the Seller two years after completion of the Transaction, subject to any claims. In addition, Acision, in consultation with the Company will seek an amendment and waiver (the “Amendment”) to Acision’s credit agreement (the “Acision Credit Agreement”) governing Acision’s existing $157 million senior credit facility (the “Acision Senior Debt”), pursuant to which the Acision Senior Debt will remain in place during the pendency of and following completion of the Transaction. Subject to provisions allowing the Company to secure alternative financing, both the Company and the Seller are permitted to terminate the Purchase Agreement in the event the requisite lenders under the Acision Credit Agreement do not consent to the Amendment. Pursuant to the terms of the Acision Credit Agreement the Acision Senior Debt bears interest at a rate per annum, at the option of the Acision, of either (i) a customary adjusted Eurocurrency interest rate plus 9.75% or (ii) a customary base rate plus 8.75%, and matures, subject to the terms and conditions of the Acision Credit Agreement, on December 15, 2018. In connection with the Amendment, the Company has agreed to pay certain costs imposed on Acision by its lenders under the Acision Senior Debt.
	The Acision Purchase Agreement contains customary representations, warranties and covenants, by the parties thereto and completion of the Transaction as set forth therein is subject to certain closing conditions including (i) the completion of the sale of the substantial majority of the Company’s BSS business to Amdocs Limited in accordance with the Amdocs Purchase Agreement and (ii) the receipt of the requisite approvals and consents of certain local regulatory authorities in respect of the Transaction. Assuming the satisfaction or waiver of the closing conditions, the Transaction is expected to close no later than the end of the third calendar quarter in 2015.
	Each party has agreed to indemnify the other for certain potential liabilities and claims, subject to certain exceptions and limitations.

Organization_Business_and_Summ1

Organization, Business and Summary of Significant Accounting Policies (Policy)	3 Months Ended
	Apr. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation
	The condensed consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and on the same basis as the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended January 31, 2015 (the “2014 Form 10-K”) (see Note 14, Discontinued Operations).
	The condensed consolidated statements of operations, comprehensive income (loss) and cash flows for the periods ended April 30, 2015 and 2014, and the condensed consolidated balance sheet as of April 30, 2015 are not audited but in the opinion of management reflect all adjustments that are of a normal recurring nature and that are considered necessary for a fair statement of the results of the periods presented. Certain information and disclosures normally included in audited financial statements have been omitted in these condensed consolidated financial statements pursuant to the rules and regulations of the SEC. Because the condensed consolidated financial statements do not include all of the information and disclosures required by U.S. GAAP for annual financial statements, they should be read in conjunction with the audited consolidated financial statements and notes included in the 2014 Form 10-K. The results for the three months ended April 30, 2015 are not necessarily indicative of the results for the full fiscal year ending January 31, 2016.
	Intercompany accounts and transactions within the Company have been eliminated.
Discontinued Operations	Discontinued Operations
	The BSS Business met the criteria to be classified as held for sale as well as discontinued operations. As such, the BSS Business has been reclassified and reflected as discontinued operations on the consolidated statements of operations for all periods presented. The estimated assets and liabilities related to BSS Business were reclassified and reflected as available for sale on the consolidated balance sheet at April 30, 2015.
Segment Information	Segment Information
	Prior to entering into the Amdocs Purchase Agreement, the Company’s reportable segments consisted of BSS and Digital Services. As a result of entering into the Amdocs Purchase Agreement, the results of operations of the former BSS Business segment are classified as discontinued operations. Therefore, with the reported divestiture, the Company now operates as a single business segment the results of which are included in the Company's income statement from continuing operations.
Use Of Estimates	Use of Estimates
	The preparation of the condensed consolidated financial statements and the accompanying notes in conformity with U.S. GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses.
	The most significant estimates among others include:
	•	Estimates relating to the recognition of revenue, including the determination of vendor specific objective evidence (“VSOE”) of fair value and the determination of best estimate of selling price for multiple element arrangements;
	•	Fair value of stock-based compensation;
	•	Fair value of reporting unit for the purpose of goodwill impairment testing;
	•	Fair value of long-lived assets and asset groups;
	•	Realization of deferred tax assets;
	•	The identification and measurement of uncertain tax positions;
	•	Contingencies and litigation;
	•	Total estimates to complete on percentage-of-completion (“POC”) projects;
	•	Valuation of inventory;
	•	Israel employees severance pay;
	•	Allowance for doubtful accounts; and
	•	Valuation of other intangible assets.
	The Company’s actual results may differ from its estimates.
Recoverability of Long-Lived Assets	Recoverability of Long-Lived Assets
	The Company periodically evaluates its long-lived assets for potential impairment. In accordance with the relevant accounting guidance, the Company reviews the carrying value of our long-lived assets or asset group that is held and used for impairment whenever circumstances occur that indicate that those carrying values are not recoverable. Under the held and used approach, assets are grouped at the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. The identification of asset groups involves judgment, assumptions, and estimates. The lowest level of cash flows which are largely independent of one another was determined to be at the BSS and Digital Services reporting units.
	The Company makes judgments about the recoverability of long-lived assets, including fixed assets and purchased finite-lived intangible assets whenever events or changes in circumstances indicate that impairment may exist. Each period we evaluate the estimated remaining useful lives of long-lived assets and whether events or changes in circumstances warrant a revision to the remaining periods of depreciation or amortization. If circumstances arise that indicate an impairment may exist, we use an estimate of the undiscounted value of expected future operating cash flows over the primary asset’s remaining useful life and salvage value to determine whether the long-lived assets are impaired. If the aggregate undiscounted cash flows and salvage values are less than the carrying amount of the assets, the resulting impairment charge to be recorded is calculated based on the excess of the carrying amount of the assets over the fair value of such assets, with the fair value generally determined using the discounted cash flow ("DCF") method. Application of the DCF method for long-lived assets requires judgment and assumptions related to the amount and timing of future expected cash flows, salvage value assumptions, and appropriate discount rates. Different judgments or assumptions could result in materially different fair value estimates.
Goodwill	Goodwill
	Goodwill represents the excess of the fair value of consideration transferred in a business combination over the fair value of tangible and intangible assets acquired net of the fair value of liabilities assumed and the fair value of any noncontrolling interest in the acquiree. The Company has no indefinite-lived intangible assets other than goodwill. The carrying amount of goodwill is reviewed annually for impairment on November 1 and whenever events or changes in circumstances indicate that the carrying value may not be recoverable.
	The Company applies the FASB's guidance when testing goodwill for impairment which permits the Company to make a qualitative assessment of whether goodwill is impaired, or opt to bypass the qualitative assessment, and proceed directly to performing the first step of the two-step impairment test. If the Company performs a qualitative assessment and concludes it is more-likely-than-not that the fair value of a reporting unit exceeds its carrying value, goodwill is not considered impaired and the two-step impairment test is unnecessary. However, if the Company concludes otherwise, it is then required to perform the first step of the two-step impairment test.
	The Company has the unconditional option to bypass the qualitative assessment for any reporting unit and proceed directly to performing the first step of the goodwill impairment test. The Company may resume performing the qualitative assessment in any subsequent period.
	For reporting units where the Company decides to perform a qualitative assessment, the Company's management assesses and makes judgments regarding a variety of factors which potentially impact the fair value of a reporting unit, including general economic conditions, industry and market-specific conditions, customer behavior, cost factors, financial performance and trends, strategies and business plans, capital requirements, management and personnel issues, and stock price, among others. Management then considers the totality of these and other factors, placing more weight on the events and circumstances that are judged to most affect a reporting unit's fair value or the carrying amount of its net assets, to reach a qualitative conclusion regarding whether it is more-likely-than-not that the fair value of a reporting unit exceeds its carrying amount.
	For reporting units where the Company performs the two-step goodwill impairment test, the first step requires the Company to compare the fair value of each reporting unit to the carrying value of its net assets. The Company considers both an income-based approach using projected discounted cash flows and a market-based approach using multiples of comparable companies to determine the fair value of its reporting units. The Company's estimate of fair value of each reporting unit is based on a number of subjective factors, including: (i) the appropriate weighting of valuation approaches (income-based approach and market-based approach), (ii) estimates of the future revenue and cash flows, (iii) discount rate for estimated cash flows, (iv) selection of peer group companies for the market-based approach, (v) required levels of working capital, (vi) assumed terminal value, (vii) the time horizon of cash flow forecasts; and (viii) control premium.
	If the fair value of the reporting unit exceeds its carrying value, goodwill is not considered impaired and no further evaluation is necessary. If the carrying value of the reporting unit is greater than the estimated fair value of the reporting unit, there is an indication that impairment may exist and the second step is required. In the second step, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair value assigned to its assets and liabilities. If the implied fair value of goodwill is less than the carrying value of the reporting unit's goodwill, the difference is recognized as an impairment charge.
	The Company's forecasts and estimates are based on assumptions that are consistent with the plans and estimates used to manage the business. Changes in these estimates could change the conclusion regarding an impairment of goodwill.
	As a result of the Amdocs Purchase Agreement for the sale the BSS Business, the Company performed an interim goodwill test in conjunction with the preparation of its financial statements for the three months ended April 30, 2015 which did not result in an impairment (see Note 5, Goodwill).
Revenue Recognition	Revenue Recognition
	Management is required to make judgments to estimate the total estimated costs and progress to completion. Changes to such estimates can impact the timing of the revenue recognition period to period. The Company uses historical experience, project plans, and an assessment of the risks and uncertainties inherent in the arrangement to establish these estimates. Uncertainties in these arrangements include implementation delays or performance issues that may or may not be within the Company's control. If some level of profitability is assured, but the related revenue and costs cannot be reasonably estimated, then revenue is recognized to the extent of costs incurred until such time that the project's profitability can be estimated or the services have been completed. If the Company determines that based on its estimates its costs exceed the sales price, the entire amount of the estimated loss is accrued in the period that such losses become known.

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Apr. 30, 2015
Inventory Disclosure [Abstract]
Schedule Of Inventories	Inventories consist of the following:
		April 30,		January 31,
		2015		2015
		(In thousands)
	Raw materials	$	8,153	$	10,455
	Work in process	9,397		7,362
		$	17,550	$	17,817

Goodwill_Tables

Goodwill (Tables)	3 Months Ended
	Apr. 30, 2015
Goodwill, Impaired [Abstract]
Changes In Carrying Amount Of Goodwill	The changes in the carrying amount of goodwill for the three months ended April 30, 2015 are as follows:
		(In thousands)
	Goodwill, gross, at January 31, 2015	$	313,277
	Accumulated impairment losses at January 31, 2015	(162,060		)
	Goodwill, net, at January 31, 2015	151,217
	BSS Business Goodwill reclassified to available for sale (1)	(83,699		)
	Effect of changes in foreign currencies and other	67
	Goodwill, net, at April 30, 2015	$	67,585
	Balance at April 30, 2015
	Goodwill, gross, at April 30, 2015	$	224,040
	Accumulated impairment losses at April 30, 2015	(156,455		)
	Goodwill, net, at April 30, 2015	$	67,585

Intangible_Assets_Net_Future_A

Intangible Assets, Net Future Amortization Expense (Tables)	3 Months Ended
	Apr. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table Text Block]	Intangible assets, net are as follows:
		April 30,			January 31,
		2015			2015
		(In thousands)
	Acquired technology
	Gross carrying amount	$	1,822		$	99,833
	Customer relationships	—			35,499
	Trade names	—			3,400
	Total intangible assets	1,822			138,732
	Accumulated amortization	261			98,175
	Customer relationships	—			33,108
	Trade names	—			3,400
		261			134,683
	Total (1)	$	1,561		$	4,049
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Estimated future amortization expense on finite-lived acquisition-related assets for each of the succeeding fiscal years is as follows:
	Fiscal Years Ending January 31,		(In thousands)
	2016 (remainder of fiscal year)		$	264
	2017		349
	2018		316
	2019		316
	2020 and thereafter		316
			$	1,561

Restructuring_Tables

Restructuring (Tables)	3 Months Ended
	Apr. 30, 2015
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs	The following tables represent a roll forward of the workforce reduction and restructuring activities noted above for the three months ended April 30, 2015 and 2014:
		2015 Initiative						2014 Initiative						Fourth Quarter 2012 Initiative			Third Quarter 2010 Initiative
		Severance			Facilities			Severance			Facilities			Facilities			Facilities			Total
		Related			Related			Related			Related			Related			Related
		(In thousands)
	January 31, 2015	$	—		$	—		$	2,843		$	1,837		$	2,872		$	214		$	7,766
	Expenses (1)	4,097			161			23			40			19			6			4,346
	Change in assumptions	—			—			(482		)	93			18			—			(371		)
	Translation and other adjustments	(1		)	—			—			—			—			—			(1		)
	Paid or utilized	(508		)	(130		)	(1,217		)	(374		)	(284		)	(49		)	(2,562		)
	April 30, 2015	$	3,588		$	31		$	1,167		$	1,596		$	2,625		$	171		$	9,178
	(1) Includes restructuring expense associated with BSS employees of $0.6 million for the three months ended April 30, 2015.
		2014 Initiative			Fourth Quarter 2012 Initiative						Third Quarter 2010 Initiative			Netcentrex 2010 and 2011 Initiative
		Severance			Severance			Facilities			Facilities			Severance			Facilities			Total
		Related			Related			Related			Related			Related			Related
		(In thousands)
	31-Jan-14	$	—		$	1,062		$	5,728		$	390		$	50		$	15		$	7,245
	Expenses (1)	2,751			38			25			6			—			—			2,820
	Change in assumptions	—			(18		)	(59		)	—			—			—			(77		)
	Translation and other adjustments	—			—			—			—			—			—			—
	Paid or utilized	(1,657		)	(892		)	(307		)	(49		)	(2		)	—			(2,907		)
	April 30, 2014	$	1,094		$	190		$	5,387		$	347		$	48		$	15		$	7,081
	(1) Includes restructuring expense associated with BSS employees of $0.9 million for the three months ended April 30, 2014.

Other_Assets_Tables

Other Assets (Tables)	3 Months Ended
	Apr. 30, 2015
Other Assets [Abstract]
Schedule of Other Assets	Other assets consisted of the following:
			April 30,		January 31,
			2015		2015
			(In thousands)
	Severance pay fund (1)		$	11,614	$	25,759
	Deposits		2,448		2,776
	Other (2)		1,303		1,904
			$	15,365	$	30,439
	-1	Represents deposits into insurance policies to fund severance liability of the Company's Israeli employees (see Note 12, Other Long-Term Liabilities). As a result of entering into a MSA with Tech Mahindra, the Company has re-classified $11.9 million in severance pay long-term assets to Other current assets as of April 30, 2015.
	-2	Includes a $1.2 million cost-method investment in a subsidiary of a significant customer at each of April 30, 2015 and January 31, 2015.

Debt_Tables

Debt (Tables)	3 Months Ended
	Apr. 30, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	As of April 30, 2015 and January 31, 2015, the balance of outstanding debt classified in accounts payable and accrued expense and long-term liabilities are as follows:
	(In thousands)	30-Apr-15		31-Jan-15
	3.98% note due 2017	$	215	$	216
	0.53% note due 2018	310		312
	2.48% notes due 2018	118		118
	3.95% note due 2020	84		84
	0% note due 2022	397		400
		1,124		1,130
	Less: current portion	132		132
	Long-term debt	$	992	$	998
Schedule of Maturities of Long-term Debt [Table Text Block]	Aggregate debt maturities for each of the succeeding fiscal years are as follows:
	Fiscal Years Ending January 31,	(In thousands)
	2016 (remainder of fiscal year)	$	132
	2017	257
	2018	260
	2019	247
	2020 and thereafter	228
		$	1,124

Recovered_Sheet1

Derivatives And Financial Instruments (Tables)	3 Months Ended
	Apr. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Derivative Positions And Respective Fair Values	The following tables summarize the Company’s derivative positions and their respective fair values:
		April 30, 2015
	Type of Derivative	Notional		Balance Sheet Classification		Fair Value
		Amount
		(In thousands)
	Assets
	Derivatives designated as hedging instruments
	Short-term foreign currency forward	$	25,362	Prepaid expenses and other current assets		$	312
	Total assets					$	312
		January 31, 2015
	Type of Derivative	Notional		Balance Sheet Classification		Fair Value
		Amount
		(In thousands)
	Liabilities
	Derivatives designated as hedging instruments
	Short-term foreign currency forward	$	31,123	Other current liabilities		$	117
	Total liabilities					$	117
Schedule Of Classification Of Gains And Losses On Derivative Instruments	The following tables summarize the Company’s classification of gains and losses on derivative instruments:
		Three Months Ended April 30, 2015
		Gain (Loss)
	Type of Derivative	Recognized in		Reclassified from				Recognized in
		Other Comprehensive		Accumulated				foreign currency transaction gain (loss), net
		Income (Loss)		Other Comprehensive
				Income into
				Statement
				of Operations
		(In thousands)
	Derivatives designated as hedging instruments
	Foreign currency forward	$	322	$	(107	)		$	—
	Total	$	322	$	(107	)		$	—
		Three Months Ended April 30, 2014
		Gain (Loss)
	Type of Derivative	Recognized in		Reclassified from				Recognized in
		Other Comprehensive		Accumulated				foreign currency transaction gain (loss), net
		Income (Loss)		Other Comprehensive
				Income into
				Statement
				of Operations
		(In thousands)
	Derivatives designated as hedging instruments
	Foreign currency forward	$	251	$	128			$	—
	Total	$	251	$	128			$	—

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Apr. 30, 2015
Fair Value Disclosures [Abstract]
Schedule Of Financial Instruments	The following tables present financial instruments according to the fair value hierarchy as defined by the FASB’s guidance:
	Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis as of:
		April 30, 2015
		Quoted Prices		Significant		Significant		Fair Value
		to Active		Other Observable		Unobservable
		Markets for		Inputs		Inputs
		Identical		(Level 2)		(Level 3)
		Instruments
		(Level 1)
		(In thousands)
	Financial Assets:
	Money market funds (1)	$	15,401	$	—	$	—	$	15,401
	Derivative assets	—		312		—		312
		$	15,401	$	312	$	—	$	15,713
		January 31, 2015
		Quoted Prices		Significant		Significant		Fair Value
		to Active		Other		Unobservable
		Markets for		Observable		Inputs
		Identical		Inputs		(Level 3)
		Instruments		(Level 2)
		(Level 1)
		(In thousands)
	Financial Assets:
	Money market funds (1)	$	20,401	$	—	$	—	$	20,401
		$	20,401	$	—	$	—	$	20,401
	Financial Liabilities:
	Embedded derivatives	$	—	$	117	$	—	$	117
		$	—	$	117	$	—	$	117
	-1	Money market funds are classified in “Cash and cash equivalents” within the condensed consolidated balance sheets.

Other_LongTerm_Liabilities_Tab

Other Long-Term Liabilities (Tables)	3 Months Ended
	Apr. 30, 2015
Other Liabilities Disclosure [Abstract]
Schedule of Other Long-Term Liabilities	Other long-term liabilities consisted of the following:
		April 30,			January 31,
		2015			2015
		(In thousands)
	Liability for severance pay (1)	$	17,235		$	36,166
	Tax contingencies	85,803			85,782
	Long-term debt	992			998
	Other long-term liabilities	10,509			12,510
	Total	$	114,539		$	135,456
Schedule of Severance Pay Expenses	Severance pay expenses pursuant to Israel’s Severance Pay Law were as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Increase due to passage of time	$	754		$	1,034
	Increase due to salary increase	126			227
	Reversal due to voluntary termination of employee	(105		)	(147		)
	Loss (gain) from change in fund value	(23		)	25
	Total operating expense due to Israeli Severance Law	$	752		$	1,139

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Apr. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule Of Stock-Based Compensation Expense	Stock-based compensation expense associated with awards for the three months ended April 30, 2015 and 2014 included in the condensed consolidated statements of operations is as follows:
		Three Months Ended April 30,
		2015		2014
		(In thousands)
	Stock options:
	Service costs	$	21	$	41
	Research and development	49		39
	Selling, general and administrative	617		383
		687		463
	Restricted/Deferred stock awards:
	Service costs	762		929
	Research and development	216		318
	Selling, general and administrative	1,391		1,228
		2,369		2,475
	Total (1)	$	3,056	$	2,938

DISCOUNTINUED_OPERATIONS_Table

DISCOUNTINUED OPERATIONS (Tables)	3 Months Ended
	Apr. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	Stock-based compensation expense associated with awards for the three months ended April 30, 2015 and 2014 included in the discontinued operations statements of operations is as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Stock options:
	Service costs	$	5		$	1
	Research and development	—			4
	Selling, general and administrative	43			25
		48			30
	Restricted/Deferred stock awards:
	Service costs	376			419
	Research and development	49			149
	Selling, general and administrative	206			187
		631			755
	Total (1)	$	679		$	785
	Components of assets and liabilities held for sale (in thousands):
			April 30,
			2015
	ASSETS
	Current assets:
	Accounts receivable, net of allowance of $653		$	38,315
	Deferred cost of revenue		4,042
	Other current assets		8,345
	Total current assets		50,702
	Property and equipment, net		8,794
	Goodwill		83,797
	Intangible assets, net		1,700
	Deferred cost of revenue		7,114
	Other assets		2,722
	Total assets		$	154,829
	LIABILITIES AND (DEFICIT) EQUITY
	Current liabilities:
	Accounts payable and accrued expenses		$	28,725
	Deferred revenue		73,334
	Total current liabilities		102,059
	Deferred revenue		27,738
	Other long-term liabilities		3,549
	Total liabilities		$	133,346
	The table below provides a breakout of the discontinued operations statements of operations.
		Three Months Ended April 30,
		2015			2014
	Revenue:
	Product revenue	$	9,473		$	10,346
	Service revenue	39,115			43,703
	Total revenue	48,588			54,049
	Costs and expenses:
	Product costs	5,833			4,910
	Service costs	22,676			24,669
	Research and development, net	4,150			7,173
	Selling, general and administrative	7,154			8,584
	Other operating expenses:
	Restructuring expenses	567			871
	Total other operating expenses	567			871
	Total costs and expenses	40,380			46,207
	Income from operations	8,208			7,842
	Benefit (provision) for income taxes	5,111			(1,878		)
	Net income from discontinued operations	$	13,319		$	5,964

Stockholders_Equity_and_Accumu1

Stockholders Equity and Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Apr. 30, 2015
Equity [Abstract]
Components of Equity Attributable to Comverse, Inc.'s and Noncontrolling Interest	Components of (deficit) equity are as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Balance, January 31	$	13,382		$	32,810
	Net loss	(26,661		)	(16,131		)
	Unrealized gain for cash flow hedge positions, net of reclassification adjustments and net of zero tax	429			123
	Foreign currency translation adjustment	2,695			(2,462		)
	Stock-based compensation expense	3,056			2,938
	Exercises of stock options	—			40
	Repurchase of common stock in connection with tax liabilities upon settlement of stock awards	(81		)	(386		)
	Balance, April 30	$	(7,180	)	$	16,932
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The components of Accumulated Other Comprehensive Income (“AOCI”), net of zero tax, were as follows (in thousands, unaudited):
		Foreign Currency Translation Adjustments			Unrealized Gains on Cash Flow Hedges			Total
	Balance as of January 31, 2015	$	30,939		$	(117	)	$	30,822
	Other comprehensive income before reclassifications	2,695			322			3,017
	Amounts reclassified from AOCI	—			107			107
	Other comprehensive income	2,695			429			3,124
	Balance as of April 30, 2015	$	33,634		$	312		$	33,946
		Foreign Currency Translation Adjustments			Unrealized Gains on Cash Flow Hedges			Total
	Balance as of January 31, 2014	$	23,274		$	58		$	23,332
	Other comprehensive (loss) income before reclassifications	(2,462		)	251			(2,211		)
	Amounts reclassified from AOCI	—			(128		)	(128		)
	Other comprehensive (loss) income	(2,462		)	123			(2,339		)
	Balance as of April 30, 2014	$	20,812		$	181		$	20,993
	The amounts of unrealized losses (gains) on cash flow hedges reclassified out of accumulated other comprehensive income (loss) into the condensed consolidated condensed statements of operations, with presentation location, were as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands)
	Cost of revenue	$	47		$	(62	)
	Research and development, net	20			(19		)
	Selling, general and administrative	40			(47		)
	Total	$	107		$	(128	)

Loss_per_Share_Tables

Loss per Share (Tables)	3 Months Ended
	Apr. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The calculation of loss per share is as follows:
		Three Months Ended April 30,
		2015			2014
		(In thousands, except per share data)
	Numerator:
	Net loss attributable to continuing operations	$	(39,980	)	$	(22,095	)
	Net earnings attributable to discontinued operations	13,319			5,964
	Denominator:
	Basic & diluted weighted average common shares outstanding	21,865			22,294
	(Loss) earnings per share basic and diluted:
	Loss per share from continuing operations	$	(1.83	)	$	(0.99	)
	Earnings per share from discontinued operations	0.61			0.27
	Basic and diluted loss per share	$	(1.22	)	$	(0.72	)

Organization_Business_and_Summ2

Organization, Business and Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	3 Months Ended		12 Months Ended	0 Months Ended
Share data in Millions, except Per Share data, unless otherwise specified	Aug. 01, 2014	Apr. 30, 2015	Apr. 30, 2014	Jan. 31, 2015	Feb. 04, 2013	Apr. 29, 2015	Jun. 14, 2015	Apr. 14, 2015	Oct. 31, 2012
								employee
Distribution to shareholders of Comverse's common shares (percent)									100.00%
Proceeds From Return of Escrow				$25,000,000
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds	2,700,000
Noncash or Part Noncash Acquisition, Debt Assumed	1,400,000
Number of Employees Expected to be Rehired								570
Contractual Obligation								211,000,000
Loss Contract Reserves, Expense During Period		100,000	1,500,000
Indemnification Agreement [Member]
Cash Placed in Escrow for Indemnification Claims					25,000,000
Loss Contingency Accrual		3,700,000			4,000,000
Proceeds from Contributions from Parent					21,000,000
BSS
Disposal Group, Including Discontinued Operation, Consideration						272,000,000
Disposal Group, Including Discontinued Operations, Indemnification and Adjustment Escrow						26,000,000
Disposal Group, Including Discontinued Operations, Indemnification Period						12 months
Disposal Group, Including Discontinued Operations, Transitional Agreement Period						12 months
Subsequent Event [Member] | Acision Global Limited [Member]
Payments to Acquire Businesses, Gross							135,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares							3.13
Business Acquisition, Share Price							$0.01
Line of Credit [Member] | Acision Credit Agreement [Member] | Subsequent Event [Member] | Acision Global Limited [Member]
Debt Instrument, Face Amount							$157,000,000

Expense_Allocations_and_Share_1

Expense Allocations and Share Distribution Agreements (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 31, 2015	Feb. 04, 2013
Loss Contingencies [Line Items]
Proceeds From Return of Escrow	$25
Share Distribution
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Maximum		25
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Cash Placed in Escrow for Indemnification Claims		$25

Inventories_Details

Inventories (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]
Raw materials	$8,153	$10,455
Work in process	9,397	7,362
Inventories	$17,550	$17,817

Goodwill_Changes_In_Carrying_A

Goodwill (Changes In Carrying Amount Of Goodwill) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Jan. 31, 2015
Goodwill [Roll Forward]
Goodwill, gross, at beginning of period	$313,277
Accumulated impairment losses, at beginning of period	-162,060
Goodwill, net	67,585	151,217
BSS Business Goodwill reclassified to available for sale	-83,699
Effect of changes in foreign currencies and other	67
Goodwill, gross, at end of period	224,040
Accumulated impairment losses, at end of period	($156,455)

Intangible_Assets_Net_Details

Intangible Assets, Net (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Jan. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$1,822,000		$138,732,000
Finite-Lived Intangible Assets, Accumulated Amortization	261,000		134,683,000
Intangible assets, net	1,561,000		4,049,000
Amortization of intangible assets	100,000
Impairment of finite-lived intangible assets	0	0
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,822,000		99,833,000
Finite-Lived Intangible Assets, Accumulated Amortization	261,000		98,175,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	0		35,499,000
Finite-Lived Intangible Assets, Accumulated Amortization	0		33,108,000
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	0		3,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	$0		$3,400,000

Intangible_Assets_Net_Estimate

Intangible Assets, Net Estimated future amortization expense (Details) (USD $)	Apr. 30, 2015
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$264
Finite-Lived Intangible Assets, Amortization Expense, Year Three	316
Finite-Lived Intangible Assets, Amortization Expense, Year Four	316
Finite-Lived Intangible Assets, Amortization Expense, Year Five	316
Finite-Lived Intangible Assets, Amortization Expense, Year Two	349
Finite-Lived Intangible Assets, Net	$1,561

Intangible_Assets_Net_narrativ

Intangible Assets, Net (narrative) (details) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2015
Amortization of Intangible Assets	$0.10

Restructuring_Narrative_Detail

Restructuring (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Jan. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$4,346,000	$2,820,000
Payments for severance-related costs	-2,562,000	-2,907,000
Property, Plant and Equipment Impairment or Disposal Disclosure	1.5
2015 Initiative | Severance Related
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	15,000,000
Restructuring Charges	4,097,000
Payments for severance-related costs	-508,000
2015 Initiative | Facilities Related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	161,000
Payments for severance-related costs	-130,000
2014 Initiative | Severance Related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	23,000	2,751,000	13,000,000
Payments for severance-related costs	-1,217,000	-1,657,000
2014 Initiative | Facilities Related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	40,000		2,400,000
Payments for severance-related costs	-374,000
Fourth Quarter 2012 Initiative | Severance Related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		38,000
Payments for severance-related costs		-892,000
Fourth Quarter 2012 Initiative | Facilities Related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	19,000	25,000
Payments for severance-related costs	($284,000)	($307,000)

Restructuring_Schedule_of_Rest

Restructuring (Schedule of Restructuring and Related Costs) (Details) (USD $)	3 Months Ended			12 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014		Jan. 31, 2015
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	$7,766	$7,245		$7,245
Restructuring charges	4,346	2,820
Change in assumptions	371	77
Translation adjustments	-1	0	[1]
Payments for severance-related costs	-2,562	-2,907
Restructuring reserve, end of period	9,178	7,081
Restructuring expenses	3,408	1,872
2015 Initiative | Severance Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	0
Restructuring charges	4,097
Change in assumptions	0
Translation adjustments	-1
Payments for severance-related costs	-508
Restructuring reserve, end of period	3,588
2015 Initiative | Facilities Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	0
Restructuring charges	161
Change in assumptions	0
Translation adjustments	0
Payments for severance-related costs	-130
Restructuring reserve, end of period	31
2014 Initiative | Severance Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	2,843	0		0
Restructuring charges	23	2,751		13,000
Change in assumptions	482	0
Translation adjustments	0	0
Payments for severance-related costs	-1,217	-1,657
Restructuring reserve, end of period	1,167	1,094		2,843
2014 Initiative | Facilities Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	1,837
Restructuring charges	40			2,400
Change in assumptions	-93
Translation adjustments	0
Payments for severance-related costs	-374
Restructuring reserve, end of period	1,596			1,837
Fourth Quarter 2012 Initiative | Severance Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period		1,062		1,062
Restructuring charges		38
Change in assumptions		18
Translation adjustments		0	[1]
Payments for severance-related costs		-892
Restructuring reserve, end of period		190
Fourth Quarter 2012 Initiative | Facilities Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	2,872	5,728		5,728
Restructuring charges	19	25
Change in assumptions	-18	59
Translation adjustments	0	0	[1]
Payments for severance-related costs	-284	-307
Restructuring reserve, end of period	2,625	5,387
Third Quarter 2010 Initiative | Facilities Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	214	390		390
Restructuring charges	6	6
Change in assumptions	0	0
Translation adjustments	0	0	[1]
Payments for severance-related costs	-49	-49
Restructuring reserve, end of period	171	347
Netcentrex 2010 and 2011 Initiative | Severance Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period		50		50
Restructuring charges		0
Change in assumptions		0
Translation adjustments		0	[1]
Payments for severance-related costs		-2
Restructuring reserve, end of period		48
Netcentrex 2010 and 2011 Initiative | Facilities Related
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period		15		15
Restructuring charges		0
Change in assumptions		0
Translation adjustments		0	[1]
Payments for severance-related costs		0
Restructuring reserve, end of period		15
BSS
Restructuring Reserve [Roll Forward]
Restructuring expenses	$567	$871
[1]	(1) Includes restructuring expense associated with BSS employees of $0.9 million for the three months ended April 30, 2014.

Other_Assets_Details

Other Assets (Details) (USD $)	Apr. 30, 2015		Jan. 31, 2015
Other Commitments [Line Items]
Amount Deposited Into Insurance Policies For Funding Severance Liability	$11,614,000	[1]	$25,759,000	[1]
Deposits Assets	2,448,000		2,776,000
Other	1,303,000	[2]	1,904,000	[2]
Other assets	15,365,000		30,439,000
Cost Method Investments	1,200,000		1,200,000
Scenario, Adjustment [Member] | Other Current Assets [Member]
Other Commitments [Line Items]
Amount Deposited Into Insurance Policies For Funding Severance Liability	$11,900,000	[1]
[1]	Represents deposits into insurance policies to fund severance liability of the Company's Israeli employees (see Note 12, Other Long-Term Liabilities).
[2]	Includes a $1.2 million cost-method investment in a subsidiary of a significant customer at each of AprilB 30, 2015 and JanuaryB 31, 2015.

Debt_Details

Debt (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended
	Aug. 01, 2014	Apr. 30, 2015	Jan. 31, 2014	Jan. 31, 2015
Debt Instrument [Line Items]
Noncash or Part Noncash Acquisition, Debt Assumed	$1,400,000
Comverse Ltd.
Debt Instrument [Line Items]
Amount available line of credit for various performance guarantees		25,000,000
Credit facility used for guarantees and foreign currency transactions		15,300,000	19,500,000
Spain Government-sponsored Loans [Member]
Debt Instrument [Line Items]
Amount available line of credit for various performance guarantees				25,000,000
Comverse Ltd - Lines Of Credit | Comverse Ltd.
Debt Instrument [Line Items]
Credit facility used for guarantees and foreign currency transactions		6,500,000	6,800,000
Additional line of credit		10,000,000		10,000,000
Long-term Line of Credit				$0

Debt_Debt_Schedule_Details

Debt Debt Schedule (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term Debt	$1,124	$1,130
Less: current portion	132	132
Long-term debt	992	998
3.98% note due 2017
Debt Instrument [Line Items]
Long-term Debt	215	216
Debt Instrument, Interest Rate, Stated Percentage	3.98%
0.53% note due 2018
Debt Instrument [Line Items]
Long-term Debt	310	312
Debt Instrument, Interest Rate, Stated Percentage	0.53%
2.48% notes due 2018
Debt Instrument [Line Items]
Long-term Debt	118	118
Debt Instrument, Interest Rate, Stated Percentage	2.48%
3.95% note due 2020
Debt Instrument [Line Items]
Long-term Debt	84	84
Debt Instrument, Interest Rate, Stated Percentage	3.95%
0% note due 2022
Debt Instrument [Line Items]
Long-term Debt	$397	$400
Debt Instrument, Interest Rate, Stated Percentage	0.00%

Debt_Debt_Maturity_Details

Debt Debt Maturity (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
2016 (remainder of fiscal year)	$132
2017	257
2018	260
2019	247
2020 and thereafter	228
Long-term Debt	$1,124	$1,130

Derivatives_And_Financial_Inst1

Derivatives And Financial Instruments (Schedule Of Derivative Positions And Respective Fair Values) (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$312
Derivative Liability, Fair Value, Gross Liability		117
Derivatives Designated As Hedging Instruments | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, notional amount	25,362
Derivatives Designated As Hedging Instruments | Short Term Foreign Currency Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount		31,123
Prepaid expenses and other current assets | Derivatives Designated As Hedging Instruments | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	312
Other Current Liabilities [Member] | Derivatives Designated As Hedging Instruments | Short Term Foreign Currency Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability		$117

Derivatives_And_Financial_Inst2

Derivatives And Financial Instruments (Schedule Of Classification Of Gains And Losses On Derivative Instruments) (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Derivatives, Fair Value [Line Items]
Recognized in Other Comprehensive Income (Loss)	$322,000	$251,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	-107,000
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion		128,000
Derivative, Gain (Loss) on Derivative, Net	0	0
Derivatives Designated As Hedging Instruments | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Recognized in Other Comprehensive Income (Loss)	322,000	251,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	-107,000
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion		128,000
Derivative, Gain (Loss) on Derivative, Net	0	0
Gain (Loss) from Ineffectiveness	$0	$0

Fair_Value_Measurements_Schedu

Fair Value Measurements (Schedule Of Financial Instruments) (Details) (USD $)	Apr. 30, 2015		Jan. 31, 2015
In Thousands, unless otherwise specified
Financial Assets:
Financial assets	$15,713		$20,401
Derivative assets	312
Embedded Derivatives			117
Financial Liabilities:			117
Money Market Funds [Member]
Financial Assets:
Financial assets	15,401	[1]	20,401	[1]
Quoted Prices to Active Markets For Identical Instruments (Level 1)
Financial Assets:
Financial assets	15,401		20,401
Derivative assets	0
Embedded Derivatives			0
Financial Liabilities:			0
Quoted Prices to Active Markets For Identical Instruments (Level 1) | Money Market Funds [Member]
Financial Assets:
Financial assets	15,401	[1]	20,401	[1]
Significant Other Observable Inputs (Level 2)
Financial Assets:
Financial assets	312		0
Derivative assets	312
Embedded Derivatives			117
Financial Liabilities:			117
Significant Other Observable Inputs (Level 2) | Money Market Funds [Member]
Financial Assets:
Financial assets	0	[1]	0	[1]
Significant Unobservable Inputs (Level 3)
Financial Assets:
Financial assets	0		0
Derivative assets	0
Embedded Derivatives			0
Financial Liabilities:			0
Significant Unobservable Inputs (Level 3) | Money Market Funds [Member]
Financial Assets:
Financial assets	$0	[1]	$0	[1]
[1]	oney market funds are classified in bCash and cash equivalentsb within the condensed consolidated balance sheets.

Other_LongTerm_Liabilities_Nar

Other Long-Term Liabilities (Narrative) (Details) (USD $)	Apr. 30, 2015		Jan. 31, 2015
In Thousands, unless otherwise specified
Other Commitments [Line Items]
Liability for severance pay	$17,235		$36,166
Amount Deposited Into Insurance Policies For Funding Severance Liability	11,614	[1]	25,759	[1]
Accounts Payable and Accrued Liabilities [Member] | Scenario, Adjustment [Member]
Other Commitments [Line Items]
Liability for severance pay	$15,600
[1]	Represents deposits into insurance policies to fund severance liability of the Company's Israeli employees (see Note 12, Other Long-Term Liabilities).

Other_LongTerm_Liabilities_Oth

Other Long-Term Liabilities Other Long-Term Liabilities (Schedule of Other Long-Term Liabilities) (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Other Liabilities Disclosure [Abstract]
Liability for severance pay	$17,235	$36,166
Tax contingencies	85,803	85,782
Long-term debt	992	998
Liabilities, Other than Long-term Debt, Noncurrent	10,509	12,510
Total	$114,539	$135,456

Other_LongTerm_Liabilities_Oth1

Other Long-Term Liabilities Other Long Term Liabilities (Schedule of Severance Pay Expenses) (Details) (Israeli Subsidiaries [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Israeli Subsidiaries [Member]
Restructuring Cost and Reserve [Line Items]
Increase due to passage of time	$754	$1,034
Increase due to salary increase	126	227
Reversal due to voluntary termination of employee	-105	-147
Loss (gain) from change in fund value	-23	25
Total operating expense due to Israeli Severance Law	$752	$1,139

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Oct. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$3,056,000	2,938,000
Outstanding stock options	1,048,211
Proceeds from exercises of stock options	0	40,000
Comverse, Inc. 2012 Stock Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants	1,202,768		2,500,000
Shares issued upon exercise of stock options under Plan		1,365
Unrecognized compensation expense for nonvested awards	3,700,000
Shares of common stock available to purchase related to unvested stock options	669,151
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$9.19
Expected term of unvested stock options	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	6,100,000
Weighted average recognition period for unvested common stock	1 year 9 months 11 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	2,369,000	2,475,000
Restricted Awards outstanding (shares)	470,577
Restricted Stock Units | Comverse, Inc. 2012 Stock Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested awards	2,200,000	6,100,000
Unrecognized compensation expense for nonvested awards	7,000,000
Weighted average recognition period for unvested restricted awards	1 year 9 months 11 days
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	687,000	463,000
BSS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	679,000	785,000
BSS | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	631,000	755,000
BSS | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$48,000	30,000

StockBased_Compensation_Schedu

Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$3,056	$2,938
Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,369	2,475
Restricted Stock Units (RSUs) [Member] | Service Costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	762	929
Restricted Stock Units (RSUs) [Member] | Research and Development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	216	318
Restricted Stock Units (RSUs) [Member] | Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,391	1,228
Employee Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	687	463
Employee Stock Option [Member] | Service Costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	21	41
Employee Stock Option [Member] | Research and Development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	49	39
Employee Stock Option [Member] | Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$617	$383

DISCOUNTINUED_OPERATIONS_Incom

DISCOUNTINUED OPERATIONS Income Statement (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Product revenue	$10,107	$17,010
Service revenue	35,598	48,072
Total revenue	45,705	65,082
Product costs	12,953	9,895
Service costs	30,804	40,990
Research and development, net	8,280	8,359
Selling, general and administrative	19,873	25,560
Restructuring expenses	3,408	1,872
Other Cost and Expense, Operating	3,408	1,872
Total costs and expenses	75,318	86,676
Loss from operations	-29,613	-21,594
Income tax expense	-4,787	-2,460
Income from discontinued operations	13,319	5,964
BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Product revenue	9,473	10,346
Service revenue	39,115	43,703
Total revenue	48,588	54,049
Product costs	5,833	4,910
Service costs	22,676	24,669
Research and development, net	4,150	7,173
Selling, general and administrative	7,154	8,584
Restructuring expenses	567	871
Other Cost and Expense, Operating	567	871
Total costs and expenses	40,380	46,207
Loss from operations	8,208	7,842
Income tax expense	5,111	-1,878
Income from discontinued operations	$13,319	$5,964

DISCOUNTINUED_OPERATIONS_Balan

DISCOUNTINUED OPERATIONS Balance Sheet (Details) (USD $)	Apr. 30, 2015	Jan. 31, 2015
In Thousands, unless otherwise specified
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts Receivable, Net, Current	$33,914	$71,670
Deferred cost of revenue	3,481	7,059
Other current assets	13,758	10,570
Assets, Current	422,631	329,976
Property and equipment, net	39,825	49,230
Goodwill	67,585	151,217
Intangible assets, net	1,561	4,049
Deferred cost of revenue	20,305	30,437
Other assets	15,365	30,439
Assets	577,861	606,352
Accounts Payable and Accrued Liabilities, Current	106,074	121,720
Deferred revenue	116,738	185,323
Liabilities, Current	362,739	310,700
Deferred revenue	56,729	89,999
Other long-term liabilities	114,539	135,456
Liabilities	585,041	592,970
BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts Receivable, Net, Current	38,315
Deferred cost of revenue	4,042
Other current assets	8,345
Assets, Current	50,702
Property and equipment, net	8,794
Goodwill	83,797
Intangible assets, net	1,700
Deferred cost of revenue	7,114
Other assets	2,722
Assets	154,829
Accounts Payable and Accrued Liabilities, Current	28,725
Deferred revenue	73,334
Liabilities, Current	102,059
Deferred revenue	27,738
Other long-term liabilities	3,549
Liabilities	133,346
Allowance for Doubtful Accounts Receivable	$653

DISCOUNTINUED_OPERATIONS_Stock

DISCOUNTINUED OPERATIONS Stock Compensation (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	$3,056	$2,938
BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	679	785
Employee Stock Option [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	687	463
Employee Stock Option [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	48	30
Restricted Stock Units (RSUs) [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	2,369	2,475
Restricted Stock Units (RSUs) [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	631	755
Service Costs | Employee Stock Option [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	21	41
Service Costs | Employee Stock Option [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	5	1
Service Costs | Restricted Stock Units (RSUs) [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	762	929
Service Costs | Restricted Stock Units (RSUs) [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	376	419
Research and Development | Employee Stock Option [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	49	39
Research and Development | Employee Stock Option [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	0	4
Research and Development | Restricted Stock Units (RSUs) [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	216	318
Research and Development | Restricted Stock Units (RSUs) [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	49	149
Selling, General and Administrative Expenses | Employee Stock Option [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	617	383
Selling, General and Administrative Expenses | Employee Stock Option [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	43	25
Selling, General and Administrative Expenses | Restricted Stock Units (RSUs) [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	1,391	1,228
Selling, General and Administrative Expenses | Restricted Stock Units (RSUs) [Member] | BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stock-based compensation expense	$206	$187

DISCOUNTINUED_OPERATIONS_Narra

DISCOUNTINUED OPERATIONS Narrative (Details) (BSS, USD $)	0 Months Ended
In Millions, unless otherwise specified	Apr. 29, 2015	Apr. 29, 2015
BSS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	$272	$272
Disposal Group, Including Discontinued Operations, Indemnification and Adjustment Escrow	26	26
Disposal Group, Including Discontinued Operations, Indemnification Period	12 months
Disposal Group, Including Discontinued Operations, Transitional Agreement Period	12 months
Disposal Group, Including Discontinued Operations, Disposal Commission Liability	$4	$4

Stockholders_Equity_and_Accumu2

Stockholders Equity and Accumulated Other Comprehensive Income (Components of Equity Attributable to Comverse, Inc.'s Stockholders and Noncontrolling Interest) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, January 31	$13,382	$32,810
Net loss	-26,661	-16,131
Unrealized gain for cash flow hedge positions, net of reclassification adjustments and net of zero tax	429	123
Foreign currency translation adjustments	2,695	-2,462
Stock-based compensation expense	3,056	2,938
Exercises of stock options	0	40
Payment for repurchase of common stock in connection with tax liabilities upon settlement of stock awards	-81	-386
Balance, April 30	($7,180)	$16,932

Stockholders_Equity_and_Accumu3

Stockholders Equity and Accumulated Other Comprehensive Income (Narrative) (Details) (USD $)	0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Feb. 04, 2013	Apr. 30, 2015	Apr. 29, 2015
Indemnification Agreement [Member]
Class of Stock [Line Items]
Cash Placed in Escrow for Indemnification Claims	$25
Loss Contingency Accrual	4	3.7
Proceeds from Contributions from Parent	$21
Net Operating Loss Rights Agreement [Member]
Class of Stock [Line Items]
Stockholders, Ownership Percentage Threshold per the Net Operating Loss Rights Agreement			4.90%
Class of Warrant or Right, Exercise Price of Warrants or Rights			$100

Stockholders_Equity_and_Accumu4

Stockholders Equity and Accumulated Other Comprehensive Income Accumulated other comprehensive income (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of beginning of period	$30,822	$23,332
Other comprehensive (loss) income before reclassifications	3,017	-2,211
Amounts reclassified from AOCI	-107	128
Other comprehensive (loss) income	3,124	-2,339
Balance as of end of period	33,946	20,993
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of beginning of period	30,939	23,274
Other comprehensive (loss) income before reclassifications	2,695	-2,462
Amounts reclassified from AOCI	0	0
Other comprehensive (loss) income	2,695	-2,462
Balance as of end of period	33,634	20,812
Unrealized Gains on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of beginning of period	-117	58
Other comprehensive (loss) income before reclassifications	322	251
Amounts reclassified from AOCI	107	-128
Other comprehensive (loss) income	429	123
Balance as of end of period	$312	$181

Stockholders_Equity_and_Accumu5

Stockholders Equity and Accumulated Other Comprehensive Income Schedule of Restructuring and related costs (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2015	Apr. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general and administrative	$19,873	$25,560
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	47	-62
Research and development, net	20	-19
Selling, general and administrative	40	-47
Net income (loss)	$107	($128)

Loss_per_Share_Details

Loss per Share (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Earnings Per Share [Abstract]
Net loss attributable to continuing operations	($39,980,000)	($22,095,000)
Income from discontinued operations	13,319,000	5,964,000
Weighted Average Number of Shares Outstanding, Basic and Diluted	21,865,326	22,293,980
Continuing operations	($1.83)	($0.99)
Discontinued operations	$0.61	$0.27
Earnings Per Share, Basic and Diluted	($1.22)	($0.72)
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$100,000	$300,000

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Income tax provision	$4,787,000	$2,460,000
Effective tax rate (percent)	-13.60%	-12.50%
Unrecognized tax benefits, if recognized would impact effective tax rate	85,800,000
Amount unrecognized tax benefits could decrease in the next twelve months as a result of settlement of certain tax audits or lapses of statutes of limitation	36,000,000
Accrued interest and penalties	39,400,000
Foreign Tax Authority [Member]
Alternative Tax Benefit, Percentage	16.00%
Ordinary Capital Investments Tax, Percentage	26.50%
Valuation Allowance, Deferred Tax Asset, Change in Amount	$48,500,000

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	12 Months Ended	0 Months Ended			1 Months Ended	3 Months Ended	0 Months Ended
In Millions, unless otherwise specified	Jan. 31, 2015	Jul. 13, 2012	Mar. 26, 2009	Mar. 16, 2009	Mar. 31, 2009	Apr. 30, 2015	Aug. 02, 2012	Apr. 29, 2015	Apr. 14, 2015	Feb. 04, 2013	Jan. 31, 2012
			litigation_case	litigation_case	litigation_case				employee
Commitments And Contingencies [Line Items]
Proceeds From Return of Escrow	$25
Number of Employees Expected to be Rehired									570
Contractual Obligation									211
Commitments And Contingencies, Tax And Labor Contingencies, Reserved						0.1
Commitments And Contingencies, Tax And Labor Contingencies, Unreserved						7.6
Security Deposit						5.4
Israeli Optionholder Class Actions
Commitments And Contingencies [Line Items]
Loss Contingency, New Claims Filed, Number			2	2	4
Loss Contingency, Damages Sought, Value		150				3.3
Indemnification Agreement [Member]
Commitments And Contingencies [Line Items]
Cash Placed in Escrow for Indemnification Claims										25
Starhome Disposition
Commitments And Contingencies [Line Items]
Proceeds From Return of Escrow						4.7
Proceeds from Divestiture of Businesses							37.2
Proceeds Held in Escrow From Divestiture of Businesses							10.5
First Portion of Proceeds Held in Escrow To Be Released From Divestiture of Businesses							5.5
Proceeds Withheld in Escrow at Closing From Divestiture of Businesses							4.9
Discontinued Operation, Agreed Upon Payments to Shareholders, Maximum							4.5
Discontinued Operations, Indemnification Claims, Threshold						1
Starhome Disposition | Starhome B V [Member]
Commitments And Contingencies [Line Items]
CTI Ownership Interest in Starhome											66.50%
Proceeds from Divestiture of Businesses							81.3
BSS
Commitments And Contingencies [Line Items]
Disposal Group, Including Discontinued Operation, Consideration								272
Disposal Group, Including Discontinued Operations, Indemnification and Adjustment Escrow								26
Disposal Group, Including Discontinued Operations, Indemnification Period								12 months
Purchase Commitment [Member]
Commitments And Contingencies [Line Items]
Recorded Unconditional Purchase Obligation Due in Second Year									40
Recorded Unconditional Purchase Obligation Due in Third Year									39
Recorded Unconditional Purchase Obligation Due in Fourth Year									36
Recorded Unconditional Purchase Obligation Due in Fifth Year									32
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five									29
Recorded Unconditional Purchase Obligation, Due in Seventh Year									12
Recorded Unconditional Purchase Obligation Due in Next Twelve Months									23
Guarantee Obligations [Member]
Commitments And Contingencies [Line Items]
Bank guarantees to provide customer assurance	$29					$24.50

Subsequent_Events_Details

Subsequent Events (Details) (Acision Global Limited [Member], Subsequent Event [Member], USD $)	0 Months Ended
	Jun. 14, 2015	Jun. 14, 2015
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$135,000,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	3,000,000
Business Acquisition, Share Price	$0.01	$0.01
Business Combination, Contingent Consideration, Liability	35,000,000	35,000,000
Business Combination, Cash Consideration to be Retained in Escrow	10,000,000	10,000,000
Maximum [Member]
Subsequent Event [Line Items]
Business Combination, Cash Consideration to be Retained in Escrow	25,000,000	25,000,000
Line of Credit [Member] | Acision Credit Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount	$157,000,000	$157,000,000
Eurocurrency Rate [Member] | Line of Credit [Member] | Acision Credit Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	9.75%
Base Rate [Member] | Line of Credit [Member] | Acision Credit Agreement [Member]
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	8.75%