Shareholder Report

12 Months Ended

May 31, 2024

USD ($)

Holding

Shareholder Report [Line Items]

Document Type

N-CSR

Amendment Flag

false

Registrant Name

Federated Hermes Money Market Obligations Trust

Entity Central Index Key

0000856517

Entity Investment Company Type

N-1A

Document Period End Date

May 31, 2024

C000190788

Shareholder Report [Line Items]

Fund Name

Federated Hermes Tax-Free Obligations Fund

Trading Symbol

TBVXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Tax-Free Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Advisor Shares	$21	0.21%

Expenses Paid, Amount

$ 21

Expense Ratio, Percent

0.21%

AssetsNet

$ 4,679,633,676

Holdings Count | Holding

306

Advisory Fees Paid, Amount

$ 4,704,164

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,679,633,676
Number of Investments	306
Total Advisory Fees Paid	$4,704,164

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Municipal Notes	11.9%
Commercial Paper	19.8%
Variable Rate Demand Instruments	69.5%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000026165

Shareholder Report [Line Items]

Fund Name

Federated Hermes Tax-Free Obligations Fund

Class Name

Service Shares

Trading Symbol

TBSXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Tax-Free Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Service Shares	$47	0.46%

Expenses Paid, Amount

$ 47

Expense Ratio, Percent

0.46%

AssetsNet

$ 4,679,633,676

Holdings Count | Holding

306

Advisory Fees Paid, Amount

$ 4,704,164

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,679,633,676
Number of Investments	306
Total Advisory Fees Paid	$4,704,164

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Municipal Notes	11.9%
Commercial Paper	19.8%
Variable Rate Demand Instruments	69.5%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000157042

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Cash Series Shares

Trading Symbol

MFSXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Cash Series Shares	$103	1.02%

Expenses Paid, Amount

$ 103

Expense Ratio, Percent

1.02%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000157043

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Investment Shares

Trading Symbol

MOIXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Investment Shares	$77	0.76%

Expenses Paid, Amount

$ 77

Expense Ratio, Percent

0.76%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000157041

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Cash II Shares

Trading Symbol

MODXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Cash II Shares	$92	0.91%

Expenses Paid, Amount

$ 92

Expense Ratio, Percent

0.91%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000157044

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Automated Shares

Trading Symbol

MOTXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Automated Shares	$47	0.46%

Expenses Paid, Amount

$ 47

Expense Ratio, Percent

0.46%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000026110

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Capital Shares

Trading Symbol

MFCXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Capital Shares	$32	0.31%

Expenses Paid, Amount

$ 32

Expense Ratio, Percent

0.31%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000026164

Shareholder Report [Line Items]

Fund Name

Federated Hermes Tax-Free Obligations Fund

Class Name

Wealth Shares

Trading Symbol

TBIXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Tax-Free Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Wealth Shares	$21	0.21%

Expenses Paid, Amount

$ 21

Expense Ratio, Percent

0.21%

AssetsNet

$ 4,679,633,676

Holdings Count | Holding

306

Advisory Fees Paid, Amount

$ 4,704,164

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,679,633,676
Number of Investments	306
Total Advisory Fees Paid	$4,704,164

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Municipal Notes	11.9%
Commercial Paper	19.8%
Variable Rate Demand Instruments	69.5%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000026108

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Wealth Shares

Trading Symbol

MOFXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Wealth Shares	$21	0.21%

Expenses Paid, Amount

$ 21

Expense Ratio, Percent

0.21%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

C000026109

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Obligations Fund

Class Name

Service Shares

Trading Symbol

MOSXX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Obligations Fund (the "Fund") for the period of June 1, 2023 to May 31, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

You can find additional information at www.FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1-800-341-7400, Option 4, or your financial advisor.

Additional Information Phone Number

1-800-341-7400

Additional Information Website

<span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; height: auto; max-height: none; min-height: 0px;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0); height: auto; max-height: none; min-height: 0px;">www.FederatedHermes.com/us/FundInformation</span></span>

Expenses [Text Block]

What were the Fund costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Service Shares	$47	0.46%

Expenses Paid, Amount

$ 47

Expense Ratio, Percent

0.46%

AssetsNet

$ 4,495,209,731

Holdings Count | Holding

319

Advisory Fees Paid, Amount

$ 4,514,532

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$4,495,209,731
Number of Investments	319
Total Advisory Fees Paid	$4,514,532

Holdings [Text Block]

Top Security Types (% of Net Assets)

Value	Value
Commercial Paper	11.0%
Municipal Notes	16.7%
Variable Rate Demand Instruments	72.6%

Material Fund Change [Text Block]

Material Fund Changes 

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.

Summary of Change Legend [Text Block]

The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective October 2, 2023, pursuant to amendments to Rule 2a-7 under the Investment Company Act of 1940, as amended, the Fund may no longer impose a redemption gate and the imposition of liquidity fees is no longer tied to the Fund’s weekly liquid assets.

Effective April 2, 2024, the Fund may impose discretionary liquidity fees on redemptions subject to a determination by the Fund’s Board of Trustees, or its delegate, that such liquidity fee is in the Fund’s best interests. Any such fee may not exceed 2% of the value of the shares redeemed and would generally be imposed, if at all, during periods of extraordinary market stress.