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S000005649 [Member] Fees and Expenses - Wilmington U.S. Treasury Money Market Fund
Apr. 30, 2025
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 and hold the Fund’s Preferred Institutional Class Shares, Institutional Class Shares, Select Class Shares, Administrative Class Shares and Service Class Shares. 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.
Shareholder Fees Caption [Optional Text] Shareholder Fees (Fees paid directly from your investment)
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)
Expense Example [Heading] Example
Expense Example Narrative [Text Block]
This 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’s Preferred Institutional Class Shares, Institutional Class Shares, Select Class Shares, Administrative Class Shares and Service Class Shares 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 and that the fee waivers/expense reimbursements remain in place for the contractual period. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be: