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Cover
Oct. 08, 2025
Dec. 31, 2024
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Oct. 08, 2025  
Entity Registrant Name LivePerson, Inc.  
Entity Central Index Key 0001102993  
Amendment Flag false  
Current Fiscal Year End Date   --12-31
Entity Incorporation, State or Country Code DE  
Entity File Number 001-41926  
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  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Document Information [Line Items]    
Entity Emerging Growth Company false  
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  
No Trading Symbol Flag true  
Security Exchange Name NASDAQ