v3.25.4
Form N-1A Cover
Dec. 31, 2025
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name THE RBB FUND, INC.
Entity Central Index Key 0000831114
Entity Investment Company Type N-1A
Document Period End Date Dec. 31, 2025
Prospectus Date Dec. 31, 2025