v3.25.4
Investment Risks
Oct. 31, 2025
HSBC U.S. Government Money Market Fund  
Prospectus [Line Items]  
Risk [Text Block]

The Fund has the following principal investment risks. The risks are presented in an order intended to facilitate readability, and their order does not imply that the realization of one risk is likely to occur more frequently than another risk, nor does it imply that the realization of one risk is likely to have a greater adverse impact than another risk.

HSBC U.S. Government Money Market Fund | Debt Instruments Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Debt Instruments Risk: The risks of investing in debt instruments include:
HSBC U.S. Government Money Market Fund | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Credit Risk: The Fund could lose money if an issuer or guarantor of a debt instrument is unable or unwilling to make or perceived to be unable or unwilling to make timely payments of interest or principal, defaults on its other obligations or enters bankruptcy. The issuer or guarantor could also suffer a rapid decrease in credit quality rating, which would adversely affect the value and liquidity of the investment.
HSBC U.S. Government Money Market Fund | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Interest Rate Risk: Fluctuations in interest rates may affect the yield, volatility, liquidity and value of investments in income producing or debt instruments. Generally, if interest rates rise, the value of such investments will fall. A low interest rate environment poses additional risks to the Fund, because low yields on the Fund’s portfolio holdings may have an adverse impact on the Fund’s ability to provide a positive yield to shareholders, pay expenses out of current income, or, at times, maintain a stable $1.00 share price and/or achieve its investment objective. The risks associated with changing interest rates may have unpredictable effects on the markets and the Fund’s investments.
HSBC U.S. Government Money Market Fund | Inventory Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Inventory Risk: The market-making capacity in debt markets has declined as a result of reduced broker-dealer inventories relative to fund assets, reduced broker-dealer proprietary trading activity and increased regulatory capital requirements for financial institutions such as banks. Because market makers provide stability to a market through their intermediary services, a significant reduction in dealer market-making capacity has the potential to decrease liquidity and increase volatility in the debt markets. A decrease in liquidity may affect the ability of the Fund to pay redemption proceeds within the allowable time period.
HSBC U.S. Government Money Market Fund | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Market Risk: The value of the Fund’s investments may decline due to changing economic, political, social, regulatory or market conditions. Market risk may affect a single issuer, industry or section of the economy or it may affect the economy as a whole. Events such as war, acts of terrorism, social or political unrest or instability, natural disasters, rapid changes in interest rates, tariffs and other restrictions on trade, the spread of infectious illness or other public health threats could also significantly impact the Fund and its investments.
HSBC U.S. Government Money Market Fund | Repurchase Agreements [Member]  
Prospectus [Line Items]  
Risk [Text Block] Repurchase Agreements: If the seller in a repurchase agreement defaults on its obligation to repurchase the underlying securities at a time when the value of these securities has declined, the Fund may incur a loss upon disposition of the securities. There is also a risk that the seller of the agreement may become insolvent and subject to liquidation.
HSBC U.S. Government Money Market Fund | Stable NAV Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Stable NAV Risk: The Fund may not be able to maintain an NAV per share of $1.00 (a “Stable NAV”) at all times. The failure of other money market funds to maintain a Stable NAV (or the perceived threat of such a failure) could adversely affect the Fund’s NAV. Shareholders of the Fund should not rely on or expect the Adviser or an affiliate to help the Fund maintain a Stable NAV.
HSBC U.S. Government Money Market Fund | U.S. Government Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] U.S. Government Securities Risk: There are different types of U.S. Government Securities with different levels of credit risk. U.S. Government Securities issued or guaranteed by the U.S. Treasury and/or supported by the full faith and credit of the United States have the lowest credit risk, although they are not risk free and may default. A U.S. government-sponsored entity, although chartered or sponsored by an Act of Congress, may issue securities that are neither insured nor guaranteed by the U.S. Treasury and are riskier than those that are.
HSBC U.S. Government Money Market Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money by investing in the Fund.
HSBC U.S. Government Money Market Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a bank account or a deposit of HSBC Bank USA, N.A. and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
HSBC U.S. Treasury Money Market Fund  
Prospectus [Line Items]  
Risk [Text Block]

The Fund has the following principal investment risks. The risks are presented in an order intended to facilitate readability, and their order does not imply that the realization of one risk is likely to occur more frequently than another risk, nor does it imply that the realization of one risk is likely to have a greater adverse impact than another risk.

HSBC U.S. Treasury Money Market Fund | Debt Instruments Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Debt Instruments Risk: The risks of investing in debt instruments include:
HSBC U.S. Treasury Money Market Fund | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Credit Risk: The Fund could lose money if an issuer or guarantor of a debt instrument is unable or unwilling to make or perceived to be unable or unwilling to make timely payments of interest or principal, defaults on its other obligations or enters bankruptcy. The issuer or guarantor could also suffer a rapid decrease in credit quality rating, which would adversely affect the value and liquidity of the investment.
HSBC U.S. Treasury Money Market Fund | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Interest Rate Risk: Fluctuations in interest rates may affect the yield, volatility, liquidity and value of investments in income producing or debt instruments. Generally, if interest rates rise, the value of such investments will fall. A low interest rate environment poses additional risks to the Fund, because low yields on the Fund’s portfolio holdings may have an adverse impact on the Fund’s ability to provide a positive yield to shareholders, pay expenses out of current income, or, at times, maintain a stable $1.00 share price and/or achieve its investment objective. The risks associated with changing interest rates may have unpredictable effects on the markets and the Fund’s investments.
HSBC U.S. Treasury Money Market Fund | Inventory Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Inventory Risk: The market-making capacity in debt markets has declined as a result of reduced broker-dealer inventories relative to fund assets, reduced broker-dealer proprietary trading activity and increased regulatory capital requirements for financial institutions such as banks. Because market makers provide stability to a market through their intermediary services, a significant reduction in dealer market-making capacity has the potential to decrease liquidity and increase volatility in the debt markets. A decrease in liquidity may affect the ability of the Fund to pay redemption proceeds within the allowable time period.
HSBC U.S. Treasury Money Market Fund | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Market Risk: The value of the Fund’s investments may decline due to changing economic, political, social, regulatory or market conditions. Market risk may affect a section of the economy or it may affect the economy as a whole. Events such as war, acts of terrorism, social or political unrest or instability, natural disasters, rapid changes in interest rates, tariffs and other restrictions on trade, the spread of infectious illness or other public health threats could also significantly impact the Fund and its investments.
HSBC U.S. Treasury Money Market Fund | Stable NAV Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Stable NAV Risk: The Fund may not be able to maintain an NAV per share of $1.00 (a “Stable NAV”) at all times. The failure of other money market funds to maintain a Stable NAV (or the perceived threat of such a failure) could adversely affect the Fund’s NAV. Shareholders of the Fund should not rely on or expect the Adviser or an affiliate to help the Fund maintain a Stable NAV.
HSBC U.S. Treasury Money Market Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money by investing in the Fund.
HSBC U.S. Treasury Money Market Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a bank account or a deposit of HSBC Bank USA, N.A. and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.