Significant Accounting Policies (Policies)	9 Months Ended
Significant Accounting Policies (Policies)	Oct. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared using accounting principles generally accepted in the United States of America (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2017 filed with the SEC on April 3, 2017 (the “Form 10-K”). The consolidated financial statements include the results of the Company and its wholly owned subsidiaries. All significant intercompany transactions and balances have been eliminated during consolidation. The condensed consolidated balance sheet as of January 31, 2017, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including certain notes required by GAAP on an annual reporting basis. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results to be expected for the full fiscal year or any other period. There have been no changes to our significant accounting policies described in the Form 10-K.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. On an ongoing basis, management evaluates its significant estimates including the valuation of accounts receivable, the lives of tangible and intangible assets, stock-based compensation, revenue recognition, the valuation of acquired intangible assets, and provisions for income taxes. Management bases its estimates on historical experience and on various other market-specific and relevant assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates and such differences could be material to the financial position and results of operations.
Concentration of Risk	Concentration of Risk Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents and accounts receivable. Cash deposits may, at times, exceed amounts insured by the Federal Deposit Insurance Corporation and the Securities Investor Protection Corporation. The Company has not experienced any losses on its deposits of cash and cash equivalents to date.
Comprehensive Loss	Comprehensive Loss Comprehensive loss is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company’s comprehensive loss is composed only of net loss.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). ASU 2016-09 simplifies several aspects of the accounting for share-based payments, including allowing an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures as they occur and immediate recognition of excess tax benefits in the income statement. The Company adopted ASU 2016-09 in the first quarter of fiscal 2018 and elected to account for forfeitures as they occur in calculating compensation costs. Also as a result of this adoption, the Company recorded a $6.7 million cumulative-effect decrease in accumulated deficit and an offsetting increase in deferred tax assets for previously unrecognized excess tax benefits that existed as of January 31, 2017. The realization of these deferred tax assets is not more likely than not to be achieved, and therefore, the Company recorded a $6.7 million valuation allowance against these deferred tax assets with an offsetting increase in accumulated deficit. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (“ASU 2017-01”). ASU 2017-01 narrows the definition of a business and requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in either a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs. This guidance will be effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company has elected to early adopt this new guidance effective February 1, 2017. The adoption of this standard had no impact on the Company’s historical financial statements.
New Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) which provides guidance for revenue recognition. Since the issuance of ASU 2014-09, the FASB has also issued ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20, all of which clarify certain aspects of ASU 2014-09. The new standard affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets. The new standard will supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance. This standard also supersedes some cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts. The new standard is effective for public entities for annual reporting periods, and interim periods within those annual reporting periods, beginning after December 15, 2017. The new standard can be applied either retrospectively to each prior reporting period presented (full retrospective approach) or retrospectively as a cumulative-effect adjustment (modified retrospective approach) as of the date of adoption. The Company has elected to adopt this standard effective on February 1, 2018 using a modified retrospective approach. The Company preliminarily believes that the new standard will impact revenue recognized due to the removal of the current limitation on contingent revenue. In addition, commissions accounting under the new standard is expected to be significantly different than the Company’s current capitalization policy. The new standard will result in additional types of costs that will be capitalized and amounts will be amortized over a period longer than the Company’s current policy of amortizing the deferred amounts over the specific revenue contract-terms. The new standard also requires incremental disclosures including information about the remaining transaction price and when the Company expects to recognize revenue. The Company continues to implement control activities related to the new standard, particularly related to evaluating the impact of the standard on the Company’s revenue recognition policies, the determination of average customer life, and the new disclosure requirements. The Company continues to assess the impact the adoption of this guidance will have on its financial position, results of operations, cash flows and disclosures, including monitoring industry trends and additional interpretive guidance and may adjust its interpretation and implementation plan accordingly. In February 2016, the FASB issued ASU No. 2016-02, Leases (“ASU 2016-02”). ASU 2016-02 establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. A modified retrospective transition approach is required for lessees with capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is currently evaluating the impact of adopting ASU 2016-02 on its consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory (“ASU 2016-16"). ASU 2016-16 requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The new standard is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company expects to adopt this standard on February 1, 2018 and is currently evaluating the impact of adopting ASU 2016-16 on its consolidated financial statements. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”). ASU 2016-18 requires an entity to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows, and an entity will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. This guidance will be effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company is currently evaluating the impact of adopting ASU 2016-18 on its consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”), which simplifies the accounting for goodwill impairments by eliminating step two from the goodwill impairment test. Instead, if the carrying amount of a reporting unit exceeds its fair value, an impairment loss will be recognized in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit. ASU 2017-04 also clarifies the requirements for excluding and allocating foreign currency translation adjustments to reporting units related to an entity’s testing of reporting units for goodwill impairment, and clarifies that an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. The guidance is effective for annual reporting periods beginning after January 1, 2020 and interim periods within those fiscal years. The Company is currently evaluating the impact of adopting ASC 2017-04 on its consolidated financial statements.