Risk/Return: Risk/Return: Prospectus: Prospectus: Legal Entity [Axis] Legal Entity [Axis] Document [Domain] Document [Domain] S000005051 [Member] HSBC Prime Money Market Fund S000005051 [Member] Prospectus [Line Items] Prospectus [Line Items] Strategy [Heading] Strategy [Heading] Strategy Narrative [Text Block] Strategy Narrative [Text Block] Risk [Heading] Risk [Heading] Risk Narrative [Text Block] Risk Narrative [Text Block] Supplement [Text Block] Supplement [Text Block] Document Type Document Type Document Period End Date Document Period End Date Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Amendment Flag Amendment Flag Document Creation Date Document Creation Date Document Effective Date Document Effective Date Prospectus Date Prospectus Date