v3.25.1
Cover - shares
3 Months Ended
Mar. 31, 2025
May 01, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Entity File Number 001-35618  
Entity Registrant Name LegalZoom.com, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 95-4752856  
Entity Address, Address Line One 954 Villa Street  
Entity Address, City or Town Mountain View  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94041  
City Area Code 323  
Local Phone Number 962-8600  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol LZ  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   181,184,393
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Entity Central Index Key 0001286139