Federated Hermes U S Treasury Cash Reserves Performance Management - Cash Reserve Shares [Member] - Federated Hermes U S Treasury Cash Reserves |
Apr. 30, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | <span style="color:#000000;font-family:Arial;font-size:8pt;font-weight:bold;text-transform:uppercase;">Performance: Bar Chart and Table</span><span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;">Risk/Return Bar Chart</span> |
| Performance Narrative [Text Block] | The total returns shown below are for an existing class of shares, Institutional Shares (IS), offered by the Fund. The total returns for the IS class are disclosed below because the Fund’s CRS class commenced operations on May 2, 2025. The total returns for the CRS class would be substantially similar to the annual returns for the IS class over the same period because the classes are invested in the same portfolio of securities and would differ only to the extent the classes do not have the same expenses and, where applicable, sales loads/charges imposed on the purchase and redemption of those classes.The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund’s investment risks in light of its historical returns. The bar chart shows the variability of the Fund’s IS class total returns on a calendar year-by-year basis. The Average Annual Total Return Table shows returns averaged over the stated periods. The Fund’s performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the “Products” section at FederatedHermes.com/us or by calling 1-800-341-7400. |
| Performance Past Does Not Indicate Future [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;">The Fund’s performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results.</span> |
| Performance Information Illustrates Variability of Returns [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:10pt;">The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">analyze the Fund’s investment risks in light of its historical returns. The bar chart shows the variability of the Fund’s IS class total returns on a calendar year-by-year basis.</span> |
| Bar Chart, Returns for Class Not Offered in Prospectus [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:10pt;margin-left:10pt;">The total returns shown below are for an existing class of shares, Institutional Shares (IS), offered by the Fund. The total </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">returns for the IS class are disclosed below because the Fund’s CRS class commenced operations on May 2, 2025. The total returns for the CRS class would be substantially similar to the annual returns for the IS class over the same period because the classes are invested in the same portfolio of securities and would differ only to the extent the classes do not have the same expenses and, where applicable, sales loads/charges imposed on the purchase and redemption of those classes.</span> |
| Bar Chart [Heading] | Federated Hermes U.S. Treasury Cash Reserves – IS Class |
| Bar Chart Closing [Text Block] | The Fund's IS class total return for the three-month period from January 1, 2026 to March 31, 2026, was 0.87%. Within the periods shown in the bar chart, the Fund's IS class highest quarterly return was 1.32% (quarter ended December 31, 2023). Its lowest quarterly return was 0.00% (quarter ended March 31, 2022). |
| Performance Table Heading | <span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;">Average Annual Total Return Table</span> |
| Performance Table Narrative | The following table represents the Fund’s IS class Average Annual Total Returns for the calendar period ended December 31, 2025. |
| Performance Table Closing [Text Block] | The Fund’s IS class 7-Day Net Yield as of December 31, 2025, was 3.59%. You may call the Fund at 1-800-341-7400 for the current 7-Day Net Yield. |
| Money Market Seven Day Yield, Caption [Optional Text] | <span style="font-family:Arial Narrow;font-size:7.75pt;font-style:italic;">The Fund’s IS class 7-Day Net Yield as of December 31, 2025</span> |
| Money Market Seven Day Yield Phone | <span style="font-family:Arial Narrow;font-size:7.75pt;font-style:italic;">1-800-341-7400</span> |
| Money Market Seven Day Yield | 3.59% |
| Performance Availability Website Address [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">FederatedHermes.com/us</span> |
| Performance Availability Phone [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:10pt;">1-800-341-7400</span> |
| IS | |
| Prospectus [Line Items] | |
| Year to Date Return, Label [Optional Text] | The Fund's IS class total return for the three-month period |
| Bar Chart, Year to Date Return | 0.87% |
| Bar Chart, Year to Date Return, Date | Mar. 31, 2026 |
| Highest Quarterly Return, Label [Optional Text] | highest quarterly return |
| Highest Quarterly Return | 1.32% |
| Highest Quarterly Return, Date | Dec. 31, 2023 |
| Lowest Quarterly Return, Label [Optional Text] | lowest quarterly return |
| Lowest Quarterly Return | none |
| Lowest Quarterly Return, Date | Mar. 31, 2022 |