Daily Income Fund Fees and Expenses - Daily Income Fund	Dec. 31, 2024
Prospectus [Line Items]
Expense Heading [Optional Text]	<span style="color:#39A872;font-family:Arial;font-size:10pt;font-weight:bold;">Fees and Expenses</span>
Expense Narrative [Text Block]	The table describes the fees and expenses 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 tables and examples below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	<span style="color:#000000;font-family:Arial;font-size:8pt;">Total Annual Fund Operating Expenses shown here differ from the expense ratios shown in the Financial Highlights on page 76 because the expenses shown on this page include Acquired Fund Fees and Expenses and amounts shown in the Financial Highlights do not include Acquired Fund Fees and Expenses.</span>
Shareholder Fees Caption [Optional Text]	<span style="color:#39A872;font-family:Arial;font-size:9pt;font-weight:bold;">Shareholder Fees </span><span style="color:#39A872;font-family:Arial;font-size:9pt;">(fees paid directly from your investment)</span>
Operating Expenses Caption [Optional Text]	<span style="color:#39A872;font-family:Arial;font-size:9pt;font-weight:bold;">Annual Fund Operating Expenses </span><span style="color:#39A872;font-family:Arial;font-size:9pt;">(expenses that you pay each year as a percentage of the value of your investment)</span>
Expense Example [Heading]	<span style="color:#39A872;font-family:Arial;font-size:10pt;font-weight:bold;">Expense Example</span>
Expense Example Narrative [Text Block]	This example is intended to help you compare the cost of investing in the Fund to the cost of investing in other mutual funds. The example assumes you invest $10,000 in the Fund for the time periods indicated and then 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, except for any fee waiver or expense reimbursement, which, if applicable, is only in effect during the first year. Although your actual costs may be higher or lower, based on these assumptions your costs would be: