Business and Summary of Significant Accounting Policies	3 Months Ended
Business and Summary of Significant Accounting Policies	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies Description of the Business Appgate, Inc., a Delaware corporation (“Appgate”, the “Company”, “we”, “us”, “our”), is a cybersecurity company that protects against breaches and fraud through innovative, identity-centric, Zero Trust solutions. Appgate exists to provide modern enterprises with a solution to increasingly common cyber-attacks, against which traditional cybersecurity tools are proving ineffective. We sell and deliver our solutions using a combination of term-based license subscriptions, perpetual licenses and software-as-a-service (“SaaS”), together with related support services. We conduct business worldwide. Our headquarters is in Coral Gables, Florida. Basis of Presentation and Use of Estimates The accompanying unaudited condensed consolidated financial statements have been prepared by our management and reflect all adjustments, consisting only of normal recurring adjustments, which in the opinion of management are necessary to fairly state the financial position and the results of operations for the interim periods presented. The condensed consolidated balance sheet data as of December 31, 2021 has been derived from our audited consolidated financial statements as of that date. The condensed consolidated financial statements have been prepared in accordance with the regulations of the Securities and Exchange Commission (“SEC”) but omit certain information and footnote disclosure necessary to present the statements in accordance with generally accepted accounting principles in the United States of America (“GAAP”). For further information, refer to our audited consolidated financial statements as of and for the year ended December 31, 2021 included in our Annual Report on Form 10-K filed with the SEC on March 31, 2022. Results for the interim periods are not necessarily indicative of results to be expected for the entirety of 2022. All references to “$” or “dollars” are to the currency of the United States (“U.S.”) unless otherwise indicated. We operate on a calendar year basis. References to 2021, for example, refer to our year ended December 31, 2021. Risks and Uncertainties due to COVID-19 Pandemic The COVID-19 pandemic continues to evolve and disrupt normal activities in many segments of the U.S. and global economies even as COVID-19 vaccines have been and continue to be administered in 2022. Much uncertainty still surrounds the pandemic, including new variants of COVID-19, its duration and ultimate overall impact on our operations. Management continues to carefully evaluate potential outcomes and has plans to mitigate related risks. While the COVID-19 pandemic did not have a material impact on our business, financial condition or results of operations for 2021 and the three months ended March 31, 2022, management took measures during such periods to minimize the risks from the pandemic. Those measures were aimed at safeguarding the Company, and the health, safety and well-being of our employees and customers. Recently Issued Accounting Pronouncements Not Yet Adopted In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This standard amends guidance on reporting credit losses for assets held at amortized cost basis and available-for-sale debt securities to require that credit losses on available-for-sale debt securities be presented as an allowance rather than as a write-down. The measurement of credit losses for newly recognized financial assets and subsequent changes in the allowance for credit losses are recorded in the statements of operations. This standard is effective for smaller reporting companies for fiscal years beginning after December 15, 2022, with early adoption permitted. We plan to adopt this standard effective January 1, 2023 using the modified retrospective transition method. We are currently evaluating the potential impact of this standard on our consolidated financial statements and related disclosures.