Description of Business and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements and the financial data and other information disclosed in the notes to the condensed consolidated financial statements as of September 30, 2025 and for the three and nine months ended September 30, 2025 are unaudited. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments necessary for a fair presentation of the Company’s condensed consolidated financial position, results of operations, comprehensive (loss) income, and cash flows for the interim periods presented. The results of operations for any interim period are not necessarily indicative of the results of operations for any other future interim period or for a full fiscal year. The condensed consolidated balance sheet as of December 31, 2024 has been derived from audited consolidated financial statements at that date. In October 2025, the Company effected a 1-for-15 reverse stock split (the “Reverse Stock Split”) of its issued common stock. As a result, every 15 shares of its issued common stock were combined into one share of common stock. No fractional shares of the Company’s common stock were issued as a result of the Reverse Stock Split. Each stockholder who would otherwise have been entitled to receive a fractional share as a result of the Reverse Stock Split received a cash payment equal to the product obtained by multiplying the number of shares of common stock held by such stockholder before the Reverse Stock Split that would otherwise have been exchanged for such fractional share interest by the closing price per share of the common stock as reported on the Nasdaq Global Select Market on October 10, 2025. As a result of the Reverse Stock Split, proportionate adjustments were made to the per share exercise price and the number of shares issuable upon the exercise of, or notional shares underlying, all outstanding warrants to purchase shares of the Company’s common stock. In addition, the number of authorized shares of common stock was proportionately reduced. Proportionate adjustments were also made to (i) the number of shares of common stock available for issuance under the Company’s equity plans, (ii) the number of shares underlying, the exercise prices of, and performance hurdles of, outstanding equity awards, as applicable, that have been previously granted under such equity plans or other arrangements, (iii) the number of shares or notional shares underlying, and the exercise prices of, the Company’s outstanding warrants, (iv) the number of shares or notional shares underlying, and the conversion prices of, the Company’s outstanding convertible notes and (v) the number of rights outstanding pursuant to the Company’s Tax Benefits Preservation Plan, in each case in accordance with their respective terms. The Reverse Stock Split did not affect the par value of the common stock or the number of shares of preferred stock that the Company is authorized to issue under its certificate of incorporation. These notes to the condensed consolidated financial statements and the accompanying condensed consolidated financial statements give retroactive effect to the Reverse Stock Split for all periods presented. Certain information and note disclosures included in the Company’s audited financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been condensed or omitted as they are not required for interim financial statements pursuant to GAAP and the rules and regulations of the Securities and Exchange Commission (the “SEC”). These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto for the year ended December 31, 2024 included in the Company’s Annual Report on Form 10-K filed with the SEC on March 14, 2025.
Principles of Consolidation	Principles of Consolidation The unaudited condensed consolidated financial statements reflect the operations of LivePerson and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to current period presentation. These reclassifications had no effect on previously reported net income (loss) or equity.
Use of Estimates	Use of Estimates The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. These estimates are based on information available as of the date of the condensed consolidated financial statements. On a regular basis, management evaluates these estimates and assumptions. Items subject to such estimates and assumptions include, but are not limited to: •stock-based compensation expense; •allowance for credit losses; •the period of benefit for deferred contract acquisition costs; •valuation of goodwill; •valuation and useful lives of long-lived assets; •valuation of the cash-settled and share-settled warrants (together, “Warrants”); •valuation of features embedded in the 2029 Notes (as defined below); •income taxes; and •recognition, measurement, and disclosure of contingent liabilities. As of the date of issuance of the financial statements, the Company is not aware of any material specific events or circumstances that would require it to update its estimates, judgments, or to revise the carrying values of its assets or liabilities. These estimates may change, as new events occur and additional information is obtained, and are recognized in the condensed consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to the Company’s condensed consolidated financial statements.
Recently Adopted and Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In September 2025, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which removes all references to project stages related to internal-use software development. An entity is required to start capitalizing software costs when both of the following occur: (1) management has authorized and committed to funding the software project and (2) it is probable that the project will be completed and the software will be used to perform the function intended. The guidance is effective for annual periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the potential impact of adopting this new guidance on its consolidated financial statements and related disclosures. In July 2025, the FASB issued ASU 2025-05, Financial Instruments - Credit Losses (Top 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which provides all entities with a practical expedient when estimating expected credit losses for current accounts receivable and current contract assets arising from certain transactions. In developing reasonable and supportable forecasts as part of estimating expected credit losses, all entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. The guidance is effective for annual periods beginning after December 15, 2025, with early adoption permitted. The Company is currently evaluating the potential impact of adopting this new guidance on its consolidated financial statements and related disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40) (“ASU 2024-03”) which seeks to expand disclosures about a public entity’s expenses, including more detailed information about the types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, sales and marketing, general and administrative, and research and development). The amendments in this update are effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. ASU 2024-03 should be applied retrospectively. The Company is currently evaluating the potential impact of adopting this new guidance on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, (“ASU 2023-09”) which modifies the rules on income tax disclosures to require entities to disclose (1) specific categories in the rate reconciliation, (2) the income or loss from continuing operations before income tax expense or benefit (separated between domestic and foreign) and (3) income tax expense or benefit from continuing operations (separated by federal, state and foreign). ASU 2023-09 also requires entities to disclose their income tax payments to international, federal, state and local jurisdictions, among other changes. The guidance is effective for annual periods beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. ASU 2023-09 should be applied on a prospective basis, but retrospective application is permitted. The Company is currently evaluating the potential impact of adopting this new guidance on its consolidated financial statements and related disclosures.