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Fees and Expenses - Dreyfus Institutional Preferred Treasury Obligations Fund
Apr. 30, 2024
Hamilton Shares Prospectus  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and examples below.

Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
   

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

Hamilton Shares

Management fees

.10

Other expenses:

 

Shareholder services fees

.05

Miscellaneous other expenses

.01

Total other expenses

.06

Total annual fund operating expenses

.16

Fee waiver*

(.01)

Total annual fund operating expenses (after fee waiver)

.15

* The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has agreed in its management agreement with the fund to: (1) pay all of the fund's direct expenses, except management fees, fees pursuant to any service plan adopted by the fund and certain other expenses, including the fees and expenses of the independent board members and independent counsel to the fund and to the independent board members, and (2) reduce its fees pursuant to the management agreement in an amount equal to the fund's allocable portion of the fees and expenses of the independent board members and independent counsel to the fund and to the independent board members (in the amount of .01% for the past fiscal year). These provisions in the management agreement may not be amended without the approval of the fund's shareholders.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

The Example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The Example is based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
         
 

1 Year

3 Years

5 Years

10 Years

Hamilton Shares

$15

$48

$85

$192

Instiutional Shares Prospectus  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and examples below.

Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
   

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

 

Institutional Shares

Management fees

.10

Other expenses

.01

Total annual fund operating expenses

.11

Fee waiver*

(.01)

Total annual fund operating expenses (after fee waiver)

.10

* The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has agreed in its management agreement with the fund to: (1) pay all of the fund's direct expenses, except management fees and certain other expenses, including the fees and expenses of the independent board members and independent counsel to the fund and to the independent board members, and (2) reduce its fees pursuant to the management agreement in an amount equal to the fund's allocable portion of the fees and expenses of the independent board members and independent counsel to the fund and to the independent board members (in the amount of .01% for the past fiscal year). These provisions in the management agreement may not be amended without the approval of the fund's shareholders.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

The Example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The Example is based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
         
 

1 Year

3 Years

5 Years

10 Years

Institutional Shares

$10

$32

$56

$128