Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Jan. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Non-cancelable Purchase Obligations In the normal course of business, we enter into non-cancelable purchase commitments with various parties to purchase primarily software-based services. As of January 31, 2020, we had outstanding non-cancelable purchase obligations with a term of 12 months or longer of $86.1 million. Indemnifications and Contingency Our agreements with certain larger customers include certain provisions for indemnifying customers against liabilities if our services infringe a third party’s intellectual property rights. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances that may be involved in each particular agreement. To date, we have not incurred any material costs as a result of such provisions and have not accrued any liabilities related to such obligations in our consolidated financial statements. In addition, we have indemnification agreements with our directors and our executive officers that require us, among other things, to indemnify our directors and executive officers for costs associated with any fees, expenses, judgments, fines, and settlement amounts incurred by any of those persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person’s service as a director or officer, including any action by us, arising out of that person’s services as our director or officer or that person’s services provided to any other company or enterprise at our request. We maintain director and officer insurance coverage that may enable us to recover a portion of any future indemnification amounts paid. To date, there have been no claims under any of our directors’ and executive officers’ indemnification provisions. Sales and Other Tax Liabilities We conduct operations in many tax jurisdictions. In many jurisdictions, non-income-based taxes, such as sales and use tax and other indirect taxes, are assessed on our operations. Although we are diligent in collecting and remitting such taxes, there is uncertainty as to what constitutes sufficient presence for a jurisdiction to levy taxes, fees, and surcharges for sales made over the Internet. As of January 31, 2020 and 2019, we recorded sales and other tax liabilities of $37.7 million and $22.0 million, respectively, of which $3.7 million and $1.2 million are included in accrued expenses and other current liabilities, respectively, and $34.0 million and $20.8 million are included in other liabilities, noncurrent, respectively, on our consolidated balance sheets, based on our best estimate of the probable liability for the loss contingency incurred as of those dates. Our estimate of a probable outcome under the loss contingency is based on analysis of our sales and marketing activities, revenue subject to sales tax, and applicable regulations in applicable jurisdictions in each period. No significant adjustments to the sales and other tax liabilities have been recognized in the accompanying consolidated financial statements for changes to the assumptions underlying the estimate; however, changes in our assumptions may occur in the future as we obtain new information which can result in adjustments to the recorded liability. Other Contingencies Our platform and associated products are subject to various restrictions under U.S. export control and sanctions laws and regulations, including the U.S. Department of Commerce’s EAR and various economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Controls (“OFAC”). The U.S. export control laws and U.S. economic sanctions laws include restrictions or prohibitions on the sale or supply of certain products and services to U.S. embargoed or sanctioned countries, governments, persons, and entities, and also require authorization for the export of certain encryption items. In addition, various countries regulate the import of certain encryption technology, including through import permitting and licensing requirements and have enacted or could enact laws that could limit our ability to distribute our platform or could limit our hosts’ ability to implement our platform in those countries. Although we take precautions to prevent our platform and associated products from being accessed or used in violation of such laws, we have inadvertently allowed our platform and associated products to be accessed or used by some customers in apparent violation of U.S. economic sanction laws. In addition, we may have inadvertently made our software products available to some customers, including users in embargoed or sanctioned countries, in apparent violation of the EAR. As a result, we have submitted initial and final voluntary self-disclosures concerning potential violations of U.S. sanctions and export control laws and regulations to the OFAC and the U.S. Department of Commerce’s BIS. In June 2019, OFAC and BIS issued us warning letters as their final enforcement responses to these potential violations, but no fines or penalties were assessed. If we are found to be in violation of U.S. economic sanctions or export control laws in the future, it could result in fines and penalties. Legal Proceedings In the ordinary course of business, we may be subject from time to time to various proceedings, lawsuits, disputes, or claims. Although we cannot predict with assurance the outcome of any litigation, we do not believe there are currently any such actions that, if resolved unfavorably, would have a material impact on our financial condition, results of operations, or cash flows.