Description of Operations and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
Description Of Operations And Summary Of Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or 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. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 filed with the SEC on February 17, 2017, or Form 10-K. The condensed consolidated balance sheet as of December 31, 2016, included herein, was derived from the audited annual 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 fairly state the financial position, results of operations, comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2017 or any future period.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
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 the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates.
Certain Significant Risks And Uncertainties	Certain Significant Risks and Uncertainties The Company continues to be subject to the risks and challenges associated with other companies at a similar stage of development, including risks associated with: dependence on key personnel; successful marketing and sale of its solutions and adaptation of such solutions to changing market dynamics and customer preferences; competition from alternative products and services, including from larger companies that have greater name recognition, longer operating histories, more and better established customer relationships and greater resources than the Company; and the ability to raise additional capital to support future growth. Since inception through September 30, 2017, the Company has incurred losses from operations, and accumulated a deficit of $219.1 million, and has been dependent on equity and debt financing to fund operations.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In May 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2017-09 Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. ASU 2017-09 provides clarification on when modification accounting should be used for changes to the terms or conditions of a share-based payment award. This ASU does not change the accounting for modifications but clarifies that modification accounting guidance should only be applied if there is a change to the value, vesting conditions, or award classification and would not be required if the changes are considered non-substantive. The Company elected to early adopt this new standard in the second quarter of 2017. The adoption of this standard did not have a material impact on the Company’s financial statements. In March 2016, the FASB issued ASU 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. For public entities, ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company adopted this new standard as of January 1, 2017. As of December 31, 2016, the Company has accumulated excess tax benefits from temporary differences in the amount and timing of stock-based compensation expense and the Company’s deductions on its income tax return from the award compensation that reduces the net operating loss deferred tax asset. The Company provided a full valuation allowance against its net deferred tax assets since it has been determined that it is more likely than not that all of the deferred tax assets will not be realized. Upon adoption of this standard, the stock-based compensation excess tax benefit was eliminated, resulting in an increase to the net operating loss deferred tax asset, with an increase in the valuation allowance of the same. The Company elected to continue to estimate the number of share-based awards expected to vest, rather than electing to account for forfeitures as they occur to determine the amount of stock-based compensation expense to be recognized each period. The adoption of this standard did not have a material impact on the Company’s financial statements.
New Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Not Yet Adopted In October 2016, the FASB issued ASU 2016-16, Inter-Entity Transfers of Assets other than Inventory. This guidance requires entities to recognize the income tax impact of an intra-entity sale or transfer of an asset other than inventory when the sale or transfer occurs, rather than when the asset has been sold to an outside party. The guidance will require a modified retrospective application with a cumulative catch-up adjustment to opening retained earnings at the beginning of the first quarter of fiscal 2019, but permits adoption in an earlier period. The Company is currently evaluating the impact this guidance will have on the Company’s financial statements and the timing of adoption. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The objective of the update is to improve financial reporting by increasing transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. For public entities, the new standard is effective for interim and annual reporting periods beginning after December 15, 2018. For all other entities, the new standard is effective for annual reporting periods beginning after December 15, 2019, and for interim periods within those annual periods beginning after December 15, 2020. Early application of the amendments is permitted for all entities. The Company is currently evaluating the impact this guidance will have on the Company’s financial statements and the timing of adoption. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), outlining a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers that supersedes most current revenue recognition guidance with a comprehensive revenue measurement and recognition standard and expanded disclosure requirements. The standard also provides guidance on the recognition of costs related to obtaining customer contracts. For public entities, ASU 2014-09, as amended, is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2017. For all other entities, the new standard is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods beginning after December 15, 2019, and the guidance must be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption. Based on a preliminary assessment, the Company does not believe this standard will have a material impact on subscription or services revenue recognition in its consolidated financial statements. However, the standard will require the Company to capitalize certain contract costs, such as commissions, which are currently being expensed as incurred. Because these costs will now be capitalized and amortized over the respective term of the transaction, the Company expects that adoption of this standard will result in marginally lower sales and marketing expense in scenarios where current period sales results are higher than the prior period sales results. In scenarios where current period sales results are lower than the prior period sales results, the Company expects sales and marketing expenses would be marginally higher than if the Company had expensed these selling costs as incurred. The Company currently does not believe this will have a material impact on the Company’s financial statements, specifically as a reduction or increase to sales and marketing expense on an annual or quarterly basis. Additionally, the new guidance requires enhanced disclosures, including revenue recognition policies to identify performance obligations to customers and significant judgments in measurement and recognition. The Company currently anticipates adopting the new standard on January 1, 2018 utilizing the full retrospective transition method.