v3.25.1
Document and Entity Information - shares
 3 Months Ended
Apr. 30, 2025
May 31, 2025
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Apr. 30, 2025  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Entity Registrant Name ServiceTitan, Inc.  
Entity Central Index Key 0001638826  
Entity File Number 001-42434  
Entity Current Reporting Status Yes  
Current Fiscal Year End Date --01-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-0331862  
Entity Address, Address Line One 800 N. Brand Blvd.  
Entity Address, Address Line Two Suite 100  
Entity Address, City or Town Glendale  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 91203  
City Area Code 855  
Local Phone Number 899-0970  
Title of 12(b) Security Class A Common Stock, par value $0.001 per share  
Trading Symbol TTAN  
Security Exchange Name NASDAQ  
Class A Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   77,266,756
Class B Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   13,404,097
Class C Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0