v3.26.1
Fees and Expenses - Prospectus Summary
Jan. 31, 2026
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Administrative Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.10%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.11%
Expenses (as a percentage of Assets) 0.31%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.27%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses as a result of such expense limitation agreement, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Administrative shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Administrative Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 28
Expense Example, with Redemption, 3 Years 96
Expense Example, with Redemption, 5 Years 170
Expense Example, with Redemption, 10 Years $ 389
Dreyfus Government Securities Cash Management  
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 - Prospectus Summary - Dreyfus Government Securities Cash Management
Administrative Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.10%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.11%
Expenses (as a percentage of Assets) 0.31%
Fee Waiver or Reimbursement (0.01%) [1]
Net Expenses (as a percentage of Assets) 0.30%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .01% of the value of the fund's average daily net assets. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Securities Cash Management
Administrative Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 31
Expense Example, with Redemption, 3 Years 99
Expense Example, with Redemption, 5 Years 173
Expense Example, with Redemption, 10 Years $ 392
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
BOLD® Shares
Management Fees (as a percentage of Assets) 0.20%
Other Expenses (as a percentage of Assets): 0.00% [1]
Expenses (as a percentage of Assets) 0.20%
Fee Waiver or Reimbursement (0.04%) [2]
Net Expenses (as a percentage of Assets) 0.16%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] Amount represents less than .01%.
[2] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including BOLD® shares (which amounted to .01% for the past fiscal year). On or after June 1 2027, BNY Mellon Investment Adviser, Inc. may terminate the fee waiver agreement and/or expense limitation agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the fee waiver agreement by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
BOLD® Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 16
Expense Example, with Redemption, 3 Years 60
Expense Example, with Redemption, 5 Years 109
Expense Example, with Redemption, 10 Years $ 251
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
BOLD® Future Shares
Management Fees (as a percentage of Assets) 0.20%
Component1 Other Expenses 0.05%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.07%
Other Expenses (as a percentage of Assets): 0.37%
Expenses (as a percentage of Assets) 0.57%
Fee Waiver or Reimbursement (0.10%) [1]
Net Expenses (as a percentage of Assets) 0.47%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, BNY Mellon Investment Adviser, Inc. has contractually agreed, until June 1, 2027, to waive receipt of its fees and/or assume the direct expenses of the fund's BOLD® Future shares so that the direct expenses of BOLD® Future shares (excluding taxes, brokerage commissions and extraordinary expenses) do not exceed .47%. To the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses, the amount of the waiver or reimbursement will be applied equally to each share class of the fund. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate the fee waiver agreement and/or expense limitation agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the fee waiver and expense limitation agreements by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
BOLD® Future Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 48
Expense Example, with Redemption, 3 Years 173
Expense Example, with Redemption, 5 Years 308
Expense Example, with Redemption, 10 Years $ 704
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Independence Point Shares
Management Fees (as a percentage of Assets) 0.20%
Other Expenses (as a percentage of Assets): 0.02% [1]
Expenses (as a percentage of Assets) 0.22%
Fee Waiver or Reimbursement (0.03%) [2]
Net Expenses (as a percentage of Assets) 0.19%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] Other expenses are based on estimated amounts for the current fiscal year.
[2] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the fee waiver agreement by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Independence Point Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 19
Expense Example, with Redemption, 3 Years 68
Expense Example, with Redemption, 5 Years 121
Expense Example, with Redemption, 10 Years $ 277
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Institutional Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.00% [1]
Component3 Other Expenses 0.00% [1]
Other Expenses (as a percentage of Assets): 0.00% [1]
Expenses (as a percentage of Assets) 0.20%
Fee Waiver or Reimbursement (0.04%) [2]
Net Expenses (as a percentage of Assets) 0.16%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] Amount represents less than .01%.
[2] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to reimburse the fund's common expenses as a result of such expense limitation agreement, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Institutional shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Institutional Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 16
Expense Example, with Redemption, 3 Years 60
Expense Example, with Redemption, 5 Years 109
Expense Example, with Redemption, 10 Years $ 251
Dreyfus Government Securities Cash Management  
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 - Prospectus Summary - Dreyfus Government Securities Cash Management
Institutional Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.00% [1]
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.21%
Fee Waiver or Reimbursement (0.01%) [2]
Net Expenses (as a percentage of Assets) 0.20%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] Amount represents less than .01%.
[2] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .01% of the value of the fund's average daily net assets. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Securities Cash Management
Institutional Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 20
Expense Example, with Redemption, 3 Years 67
Expense Example, with Redemption, 5 Years 117
Expense Example, with Redemption, 10 Years $ 267
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Investor Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.26%
Expenses (as a percentage of Assets) 0.46%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.42%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or to reimburse the fund's common expenses as a result of such expense limitation agreement, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Investor shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Investor Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 43
Expense Example, with Redemption, 3 Years 144
Expense Example, with Redemption, 5 Years 254
Expense Example, with Redemption, 10 Years $ 575
Dreyfus Government Securities Cash Management  
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 - Prospectus Summary - Dreyfus Government Securities Cash Management
Investor Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.26%
Expenses (as a percentage of Assets) 0.46%
Fee Waiver or Reimbursement (0.01%) [1]
Net Expenses (as a percentage of Assets) 0.45%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .01% of the value of the fund's average daily net assets. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Securities Cash Management
Investor Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 46
Expense Example, with Redemption, 3 Years 147
Expense Example, with Redemption, 5 Years 257
Expense Example, with Redemption, 10 Years $ 578
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Participant Shares
Management Fees (as a percentage of Assets) 0.20%
Component1 Other Expenses 0.15%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.41%
Expenses (as a percentage of Assets) 0.61%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.57%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to reimburse the fund's common expenses as a result of such expense limitation agreement, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Participant shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Participant Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 58
Expense Example, with Redemption, 3 Years 191
Expense Example, with Redemption, 5 Years 336
Expense Example, with Redemption, 10 Years $ 758
Dreyfus Government Securities Cash Management  
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 - Prospectus Summary - Dreyfus Government Securities Cash Management
Participant Shares
Management Fees (as a percentage of Assets) 0.20%
Component1 Other Expenses 0.15%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.41%
Expenses (as a percentage of Assets) 0.61%
Fee Waiver or Reimbursement (0.01%) [1]
Net Expenses (as a percentage of Assets) 0.60%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .01% of the value of the fund's average daily net assets. On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Securities Cash Management
Participant Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 61
Expense Example, with Redemption, 3 Years 194
Expense Example, with Redemption, 5 Years 339
Expense Example, with Redemption, 10 Years $ 761
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Service Shares
Management Fees (as a percentage of Assets) 0.20%
Component1 Other Expenses 0.55%
Component2 Other Expenses 0.25%
Other Expenses (as a percentage of Assets): 0.80%
Expenses (as a percentage of Assets) 1.00%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.96%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Service shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate the expense limitation agreement with respect to a fund at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Service Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 98
Expense Example, with Redemption, 3 Years 314
Expense Example, with Redemption, 5 Years 549
Expense Example, with Redemption, 10 Years $ 1,221
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
SPARKSM Shares
Management Fees (as a percentage of Assets) 0.20%
Other Expenses (as a percentage of Assets): 0.00% [1]
Expenses (as a percentage of Assets) 0.20%
Fee Waiver or Reimbursement (0.04%) [2]
Net Expenses (as a percentage of Assets) 0.16%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] Amount represents less than .01%.
[2] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets.. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including SPARKSM shares (which amounted to .01% for the past fiscal year).
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the fee waiver. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
SPARKSM Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 16
Expense Example, with Redemption, 3 Years 60
Expense Example, with Redemption, 5 Years 109
Expense Example, with Redemption, 10 Years $ 251
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
SPARKSM Future Shares
Management Fees (as a percentage of Assets) 0.20%
Component1 Other Expenses 0.12%
Component3 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.15%
Expenses (as a percentage of Assets) 0.35%
Fee Waiver or Reimbursement (0.05%) [1]
Net Expenses (as a percentage of Assets) 0.30%
[1] Other expenses are based on estimated amounts for the current fiscal year.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the fee waiver and expense limitation agreements by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
SPARKSM Future Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 31
Expense Example, with Redemption, 3 Years 107
Expense Example, with Redemption, 5 Years 191
Expense Example, with Redemption, 10 Years $ 438
Dreyfus Government Cash Management  
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 - Prospectus Summary - Dreyfus Government Cash Management
Wealth Shares
Management Fees (as a percentage of Assets) 0.20%
Component2 Other Expenses 0.25%
Component3 Other Expenses 0.01%
Other Expenses (as a percentage of Assets): 0.26%
Expenses (as a percentage of Assets) 0.46%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.42%
Fee Waiver or Reimbursement over Assets, Date of Termination June 1, 2027
[1] The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily net assets. In addition, the fund's BOLD® Future shares are offered in a different prospectus, but, to the extent that it is necessary for BNY Mellon Investment Adviser, Inc. to waive receipt of its management fee or reimburse the fund's common expenses, the amount of the waiver or reimbursement will be applied equally to each share class of the fund, including Wealth shares (which amounted to .01% for the past fiscal year). On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver agreement at any time.
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 $10,000 in the fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The one-year example and the first year of the three-, five- and ten-years examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - Dreyfus Government Cash Management
Wealth Shares
USD ($)
Expense Example, with Redemption, 1 Year $ 43
Expense Example, with Redemption, 3 Years 144
Expense Example, with Redemption, 5 Years 254
Expense Example, with Redemption, 10 Years $ 575