Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of significant accounting policies The Company's significant accounting policies are included in the 2020 Annual Report on Form 10-K and did not materially change during the six months ended June 30, 2021. Basis of presentation The accompanying unaudited consolidated financial statements and related disclosures have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") applicable to interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In the opinion of management, all adjustments, consisting of only those of a normal recurring nature, considered necessary for a fair statement of the financial position and interim results of the Company as of and for the periods presented have been included. The December 31, 2020 balance sheet data was derived from audited consolidated financial statements; however, the accompanying interim notes to the consolidated financial statements do not include all of the annual disclosures required by GAAP. Results for interim periods are not necessarily indicative of those that may be expected for a full year. The financial information included herein should be read in conjunction with the Company's consolidated financial statements and related notes in its 2020 Annual Report on Form 10-K. Impact of COVID-19 The COVID-19 pandemic continues to impact the United States and many countries around the world as new strains of the virus are found. The outbreak and government measures taken in response have had a significant impact, both direct and indirect, on businesses and commerce. The future progression of the pandemic and its effects on the Company's business and operations are uncertain and management is unable to estimate the full impact currently. The Company's Travel vertical has experienced a decline in revenue when compared with pre-COVID-19 levels, and although management does not believe the situation will materially impact the Company's liquidity or capital position, management does not expect revenue from the travel vertical to recover fully in the foreseeable future. The Company continues to monitor the potential impact of the COVID-19 pandemic on its business, results of operations and financial condition. To date, the Company has not experienced material business disruptions or incurred impairment losses in the carrying values of its assets as result of the pandemic and management is not aware of any specific related event or circumstance that would require the Company to revise the estimates reflected in these consolidated financial statements. The extent to which the COVID-19 pandemic will further impact the Company's business, results of operations and financial condition, will depend on future developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19, the actions taken to contain or treat it, and the duration and intensity of the related effects. Accounts receivable The Company estimates expected credit losses based on collection history and management’s assessment of the current economic trends, business environment, customers’ financial condition, accounts receivable aging and any customer disputes that may impact the level of future credit losses. Accounts receivable are net of allowances for credit losses of $0.7 million and $0.4 million as of June 30, 2021 and December 31, 2020, respectively. Concentrations of credit risk and of significant customers and suppliers Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company maintains cash balances that can, at times, exceed amounts insured by the Federal Deposit Insurance Corporation. The Company has not experienced any losses in these accounts, and believes it is not exposed to unusual credit risk beyond the normal credit risk in this area based on the financial strength of the institutions with which the Company maintains its deposits. The Company's accounts receivable, which are unsecured, may expose it to credit risk based on their collectability. The Company controls credit risk by investigating the creditworthiness of all customers prior to establishing relationships with them, performing periodic reviews of the credit activities of those customers during the course of the business relationship, regularly analyzing the collectability of accounts receivable, and recording allowances for credit losses. Customer concentrations consisted of two customers that accounted for approximately $45 million, or 28%, and $95 million, or 29%, of revenue for three and six months ended June 30, 2021, respectively and one customer that accounted for approximately $34 million, or 28%, and $56 million, or 23%, of revenue for three and six months ended June 30, 2020, respectively. The Company's two largest customers accounted for approximately, $22 million, or 29%, and $33 million, or 35%, of its accounts receivables as of June 30, 2021 and December 31, 2020, respectively. The Company’s accounts payable can expose the Company to business risks such as supplier concentrations. For the three and six months ended June 30, 2021, the Company had no supplier that accounted for more than 10% of total purchases, and for the three and six months ended June 30, 2020, the Company had two suppliers that accounted for approximately $23 million, or 23%, and $47 million, or 21%, of total purchases, respectively. The Company had one large supplier that accounted for approximately $7 million, or 16%, of total accounts payable as of June 30, 2021 and two large suppliers that accounted for approximately $25 million, or 25%, of total accounts payable as of December 31, 2020. New Accounting Pronouncements As an “emerging growth company,” the Jumpstart Our Business Startups Act, or the JOBS Act, allows the Company to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. The Company has elected to use the adoption dates applicable to private companies. As a result, the Company’s financial statements may not be comparable with the financial statements of issuers who are required to comply with the effective dates for new or revised accounting standards that are applicable to public companies. As of June 30, 2021, the Company determined that as of December 31, 2021 it will become a large accelerated filer under Rule 12b-2 of the Securities Exchange Act of 1934, as amended ("the Exchange Act") and will no longer be classified as an emerging growth company. Recently adopted accounting pronouncements In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13, Financial Instruments - Credit Losses (Topic 326), which changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. This update replaces the existing incurred loss impairment model with an expected loss model (referred to as the Current Expected Credit Loss model, or "CECL"). The Company early adopted ASU 2016-13 and its related amendments, as applicable, on January 1, 2021. The adoption of this new accounting guidance did not have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued Accounting Standards Update (“ASU”) No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The ASU aligns the accounting for implementation costs incurred in a hosting arrangement that is a service contract with the accounting for implementation costs incurred to develop or obtain internal-use software under ASC 350-40. Costs for implementation activities in the application development stage are capitalized depending on the nature of the costs, while costs incurred during the preliminary project and post implementation stages are expensed as the activities are performed. ASU 2018-15 is effective annual reporting periods beginning after December 15, 2020 and the interim periods within annual periods beginning after December 15, 2021, and can be applied either prospectively to implementation costs incurred after the date of adoption or retrospectively to all arrangements. The Company adopted this ASU using prospective transition as of January 1, 2021. The adoption of the new accounting guidance did not have a material impact on the Company's consolidated financial statements. In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”), which simplifies the accounting for income taxes. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020 for public companies and for fiscal years beginning after December 15, 2021 for all other entities and early adoption is permitted. The Company early adopted this ASU on January 1, 2021 and the adoption did not have a material impact on the Company's consolidated financial statements. Recently issued not yet adopted accounting pronouncements In February 2016, the FASB issued ASU No. 2016-2, Leases (ASC 842) (“ASU 2016-2”), which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively. The new guidance requires lessees to recognize lease assets and liabilities on the balance sheet for both operating and financing leases, with the exception of leases with an original term of 12 months or less. Under existing guidance, recognition of lease assets and liabilities is not required for operating leases. The lease assets and liabilities to be recognized are both measured initially based on the present value of the lease payments. ASU 2016-2 initially required adoption using a modified retrospective approach, under which all years presented in the financial statements would be prepared under the revised guidance. In July 2018, the FASB issued ASU No. 2018-11 which added an optional transition method under which financial statements may be prepared under the revised guidance for the year of adoption, but not for prior years. Under the latter method, entities will recognize a cumulative catch-up adjustment to the opening balance of retained earnings in the period of adoption. In June 2020, the FASB issued ASU No. 2020-5 that deferred the effective date for non-public entities and emerging growth companies that choose to take advantage of the extended transition periods to annual reporting periods beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. For public business entities the new guidance was effective for fiscal years beginning after December 15, 2018. The Company will adopt this accounting guidance with its annual reporting for fiscal year ending December 31, 2021 as it will be designated a large accelerated filer as of that date. The Company is currently evaluating the impact of the adoption of the new accounting guidance on its consolidated financial statements. In March 2020 and January 2021, the FASB issued ASU No. 2020-4, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting and ASU 2021-1, Reference Rate Reform (Topic 848): Scope, respectively. ASU 2020-4 and ASU 2021-1 provide optional expedients and exceptions for applying U.S. GAAP, to contracts and other transactions that reference the London Interbank Offered Rate or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The guidance in ASU 2020-4 and ASU 2021-1 was effective upon issuance and, once adopted, may be applied prospectively to contract modifications and hedging relationships through December 31, 2022. The Company is currently evaluating the impact of the adoption of ASU 2020-4 and ASU 2021-1 on its consolidated financial statements.