v3.25.4
Investment Risks - Select Shares [Member] - Federated Hermes Money Market Management Digital Treasury Fund
Mar. 05, 2026
Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates. Very low or negative interest rates magnify interest rate risk. During periods when interest rates are low or there are negative interest rates, the Fund’s yield (and total return) also is likely to be lower or the Fund may be unable to maintain a positive return, or yield, or a stable NAV.
Counterparty Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Counterparty Risk. A party to a transaction involving the Fund may fail to meet its obligations. This could cause the Fund to lose money or to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategies.
Risk Related to the Economy [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Risk Related to the Economy. The value of the Fund’s portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Global economic, political and financial conditions including geopolitical and other events (e.g., wars, sanctions and terrorism), legislative changes, industry or economic trends and developments, natural disasters or public health risks, such as epidemics or pandemics, may, from time to time, and for varying periods of time, have a significant effect on the economies of many nations, including the U.S., and financial markets generally and cause the Fund to experience volatility, illiquidity, loss of value, shareholder redemptions, and/or other potentially adverse effects.
Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Liquidity Risk. Liquidity risk is the risk that the Fund will experience significant net redemptions of Fund Shares at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss.
Large Shareholder Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Large Shareholder Risk. A significant percentage of the Fund’s shares may be owned or controlled by a large shareholder. Accordingly, the Fund can be subject to the potential for large scale inflows and outflows as a result of purchases and redemptions made by significant shareholders. These inflows and outflows could be significant and, if frequently occurring, could negatively affect the Fund’s net asset value and performance and could cause the Fund to sell securities at inopportune times in order to meet redemption requests.
Stablecoin Issuer Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Stablecoin Issuer Risk. Since the Fund’s principal investment strategy limits its investments to eligible reserve assets in which payment stablecoin issuers are permitted to maintain under the GENIUS Act, the Fund’s yield may be lower than other money market funds that are permitted to invest in a wider universe of investments.
U.S. Treasury Obligations Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ U.S. Treasury Obligations Risk. U.S. Treasury obligations may differ from other securities in their interest rates, maturities, times of issuance and other characteristics and may provide relatively lower returns than those of other securities. Similar to other issuers, changes to the financial condition or credit rating of the U.S. government may cause the value of the Fund’s U.S. Treasury obligations to decline.
Risk Associated with Use of Amortized Cost [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Risk Associated with Use of Amortized Cost. In the unlikely event that the Fund’s Board of Trustees (“Board”) were to determine, pursuant to Rule 2a-7, that the extent of the deviation between the Fund’s amortized cost per Share and its market-based NAV per Share may result in material dilution or other unfair results to shareholders, the Board will cause the Fund to take such action as it deems appropriate to eliminate or reduce to the extent practicable such dilution or unfair results.
Additional Factors Affecting Yield [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Additional Factors Affecting Yield. There is no guarantee that the Fund will provide a certain level of income or that any such income will exceed the rate of inflation. Further, the Fund’s yield will vary. Periods of very low or negative interest rates impact, in a negative way, the Fund’s ability to maintain a positive return, or yield, or pay dividends to Fund shareholders.
Technology Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ■ Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective(s) and strategy described in this Prospectus. For example, proprietary and third-party data and systems are utilized to support decision making for the Fund. Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance.
Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] All mutual funds take investment risks. Therefore, even though the Fund is a money market fund that seeks to maintain a stable NAV, it is possible to lose money by investing in the Fund.You could lose money by investing in the Fund.
Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Money Market Fund May Not Preserve Dollar [Member]  
Prospectus [Line Items]  
Risk [Text Block] Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.
Risk Money Market Fund Sponsor May Not Provide Support [Member]  
Prospectus [Line Items]  
Risk [Text Block] The Fund’s sponsor is not required to reimburse the Fund for losses, and you should not expect that the sponsor will provide financial support to the Fund at any time, including during periods of market stress.