Investment Objectives and Goals	Oct. 03, 2025
Prospectus [Line Items]
Registrant Name	THE RBB FUND, INC.
Document Period End Date	Oct. 03, 2025

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

No definition available.

Name:	dei_DocumentPeriodEndDate
Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration