Business and Summary of Significant Accounting Policies	6 Months Ended
Business and Summary of Significant Accounting Policies	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies Business Description Tenable Holdings, Inc. (the “Company,” “we,” "us," or “our”) is a provider of exposure management solutions. Exposure management is the evolution of vulnerability management, advancing risk assessment and prioritization across the entire attack surface – from IT infrastructure to cloud environments to critical infrastructure. We unify security visibility, insight and action across this attack surface, equipping modern organizations to expose and close the cybersecurity gaps that erode business value, reputation and trust. Basis of Presentation The accompanying consolidated financial statements include the accounts of Tenable Holdings, Inc. and our wholly owned subsidiaries and have been prepared in conformity with United States generally accepted accounting principles (“GAAP”) for interim financial information. All intercompany accounts and transactions have been eliminated in consolidation. The consolidated statements are unaudited and should be read in conjunction with the consolidated financial statements and related notes included in our 2024 Annual Report on Form 10-K ("10-K") filed with the Securities and Exchange Commission on February 24, 2025. The consolidated financial statements have been prepared on a basis consistent with the audited annual consolidated financial statements included in the 10-K and, in the opinion of management, include all adjustments of a normal recurring nature necessary to fairly state our financial position, our results of operations, and cash flows. The results for the three and six months ended June 30, 2025 are not necessarily indicative of the operating results expected for the year ending December 31, 2025 or any other future period. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. These estimates include, but are not limited to, the determination of the estimated economic life of perpetual licenses for revenue recognition, the estimated period of benefit for deferred commissions, the useful lives of long-lived assets, the fair value of acquired intangible assets, the valuation of stock-based compensation, the incremental borrowing rate for operating leases, and the valuation of deferred tax assets and investments. We base these estimates on historical experience and on various other assumptions that we believe to be reasonable. Actual results could differ significantly from these estimates. Significant Accounting Policies Our significant accounting policies are described in our 10-K. During the six months ended June 30, 2025, there were no material changes to our significant accounting policies from those described in our 10-K. Recently Issued Accounting Pronouncements In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09 - Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities to provide greater disaggregation within their annual rate reconciliation, including new requirements to present reconciling items on a gross basis in specified categories, disclose both percentages and dollar amounts, and disaggregate individual reconciling items by jurisdiction and nature when the effect of the items meet a quantitative threshold. The guidance also requires disaggregating the annual disclosure of income taxes paid, net of refunds received, by federal (national), state, and foreign taxes, with separate presentation of individual jurisdictions that meet a quantitative threshold. The guidance is effective for our annual periods beginning January 1, 2025 on a prospective basis, with a retrospective option. Adopting this guidance will result in additional annual tax disclosures but will not impact our provision for income taxes, deferred tax assets or deferred tax liabilities. In November 2024, the FASB issued ASU 2024-03 - Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public entities to disclose, on an annual and interim basis, disaggregated information about certain income statement expense line items. The ASU also requires disclosure of the total amount of selling expenses recognized in continuing operations on an annual and interim basis and disclosure of a public business entity’s definition of selling expenses on an annual basis (or in interim reporting periods if the definition is changed). In January 2025, the FASB issued ASU 2025-01 - Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date to highlight the effective date of ASU 2024-03. The guidance is effective for our annual periods beginning on January 1, 2027 on a prospective basis, with a retrospective option, and interim reporting periods beginning on January 1, 2028. Early adoption is permitted. We are currently evaluating the impact of adopting this standard on our consolidated financial statements and disclosures.