v3.25.2
Document and Entity Information Document
Sep. 18, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Sep. 18, 2025
Entity Registrant Name STEPSTONE GROUP INC.
Entity Central Index Key 0001796022
Current Fiscal Year End Date --03-31
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 001-39510
Entity Tax Identification Number 84-3868757
Entity Address, Address Line One 277 Park Avenue, 45th Floor
Entity Address, City or Town New York,
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10172
City Area Code 212
Local Phone Number 351-6100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A common stock, par value $0.001 per share
Trading Symbol STEP
Security Exchange Name NASDAQ
Entity Emerging Growth Company false