v3.26.1
Organization (Details)
3 Months Ended
Jun. 30, 2026
vote
Class A Common Stock  
Subsidiary, Sale of Stock [Line Items]  
Common stock, number of votes 1
Class B Common Stock  
Subsidiary, Sale of Stock [Line Items]  
Common stock, number of votes 1
StepStone Group LP  
Subsidiary, Sale of Stock [Line Items]  
Economic interest 65.80%
StepStone Group LP | General Partner  
Subsidiary, Sale of Stock [Line Items]  
Membership ownership percentage 100.00%