v3.25.1
Cover - USD ($)
 12 Months Ended
Dec. 31, 2024
Feb. 28, 2025
Jun. 30, 2024
Document Information [Line Items]      
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity File Number 000-30141    
Entity Registrant Name LIVEPERSON, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 13-3861628    
Entity Address, Address Line One 530 7th Ave, Floor M1    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10018    
City Area Code 212    
Local Phone Number 609-4200    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 44,140,772
Entity Common Stock, Shares Outstanding   91,313,969  
Current Fiscal Year End Date --12-31    
Entity Central Index Key 0001102993    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag true    
Amendment Description LivePerson, Inc. (“LivePerson,” the “Company,” “we,” “our” or “us”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment”) to amend the Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the “2024 Fiscal Year”) originally filed with the Securities and Exchange Commission (the “SEC”) by the Company on March 14, 2025 (the “Original Form 10‑K”) for the purpose of including the information required by Items 10 through 14 of Part III of Form 10-K. This information was omitted from the Original Form 10‑K in reliance on General Instruction G(3) to Form 10-K, which permits such information to be incorporated by reference from a registrant’s definitive proxy statement, if filed with the SEC not later than 120 days after the end of the fiscal year covered by a Form 10-K (or as such deadline may be extended pursuant to Rule 0-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (the “Filing Deadline”)). We will not have filed our definitive proxy statement by the Filing Deadline and are therefore amending and restating in their entirety Items 10, 11, 12, 13 and 14 of Part III of the Original Form 10-K.In addition, as required by Rule 12b-15 under the Exchange Act, certifications by LivePerson’s principal executive officer and principal financial officer are filed as exhibits to this Amendment under Item 15 of Part IV hereof. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. We are not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 as no financial statements are being filed with this Amendment.This Amendment does not reflect events occurring after the filing of the Original Form 10-K or modify or update the disclosure contained in the Original Form 10‑K in any way other than as required to reflect the amendments discussed above and reflected below. Accordingly, this Amendment should be read in conjunction with the Original Form 10-K and with the Company’s filings with the SEC subsequent to the filing of the Original Form 10-K. Capitalized terms used but not defined herein have the meanings assigned to them in the Original Form 10-K.    
Common Stock, par value $0.001 per share      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.001 per share    
Trading Symbol LPSN    
Security Exchange Name NASDAQ    
Rights to Purchase Series A Junior Participating Preferred Stock      
Document Information [Line Items]      
Title of 12(b) Security Rights to Purchase Series A Junior Participating Preferred Stock    
Security Exchange Name NASDAQ    
No Trading Symbol Flag true