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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName WILMINGTON FUNDS
Prospectus Date rr_ProspectusDate Aug. 31, 2016
Supplement [Text Block] wf_SupplementTextBlock
Supplement dated January 5, 2017 to the Wilmington Funds (the “Trust”) Prospectus dated August 31, 2016 (the “Prospectus”)

Effective January 5, 2017, the information in the Prospectus with respect to the Wilmington Multi-Manager International Fund will be amended, supplemented or replaced as follows:

1.The following amends and replaces information in the sub-section entitled “Fees and Expenses” on page 4 of the Prospectus relating to the Wilmington Multi-Manager International Fund:

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

   Class A  Class I
Management Fee*
  0.81%  0.81%
Distribution and/or Service (12b-1) Fees
  0.25%  None
Other Expenses
  0.57%  0.57%
Acquired Fund Fees and Expenses
  0.03%  0.03%
Total Annual Fund Operating Expenses
  1.66%  1.41%
Fee Waivers and/or Expense Reimbursements(1)
  (0.59)%  (0.47)%
Total Annual Fund Operating Expenses After Fee
    
Waiver/Expense Reimbursement
  1.07%  0.94%

 

*The management fee has been restated to reflect current fees.

(1) The Fund’s Advisor, distributor and shareholder services provider have agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses paid by the Fund’s Class A and Class I Shares will not exceed 1.04% and 0.91%, respectively, not including the effects of acquired fund fees and expenses, taxes, or other extraordinary expenses. This waiver may be amended or withdrawn after January 31, 2018, or with the agreement of the Fund’s Board of Trustees.

Example
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 Class A shares and Class I 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. The costs for the Fund reflect the net expenses of the Fund that result from the fee waiver/expense reimbursement in the first year only. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

   1 Year    3 Years    5 Years    10 Years
Class A
  $653    $990    $1,350    $2,361
Class I
  $96    $400    $726    $1,650
Wilmington Multi-Manager International Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] wf_SupplementTextBlock
Supplement dated January 5, 2017 to the Wilmington Funds (the “Trust”) Prospectus dated August 31, 2016 (the “Prospectus”)

Effective January 5, 2017, the information in the Prospectus with respect to the Wilmington Multi-Manager International Fund will be amended, supplemented or replaced as follows:

1.The following amends and replaces information in the sub-section entitled “Fees and Expenses” on page 4 of the Prospectus relating to the Wilmington Multi-Manager International Fund:

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

   Class A  Class I
Management Fee*
  0.81%  0.81%
Distribution and/or Service (12b-1) Fees
  0.25%  None
Other Expenses
  0.57%  0.57%
Acquired Fund Fees and Expenses
  0.03%  0.03%
Total Annual Fund Operating Expenses
  1.66%  1.41%
Fee Waivers and/or Expense Reimbursements(1)
  (0.59)%  (0.47)%
Total Annual Fund Operating Expenses After Fee
    
Waiver/Expense Reimbursement
  1.07%  0.94%

 

*The management fee has been restated to reflect current fees.

(1) The Fund’s Advisor, distributor and shareholder services provider have agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses paid by the Fund’s Class A and Class I Shares will not exceed 1.04% and 0.91%, respectively, not including the effects of acquired fund fees and expenses, taxes, or other extraordinary expenses. This waiver may be amended or withdrawn after January 31, 2018, or with the agreement of the Fund’s Board of Trustees.

Example
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 Class A shares and Class I 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. The costs for the Fund reflect the net expenses of the Fund that result from the fee waiver/expense reimbursement in the first year only. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

   1 Year    3 Years    5 Years    10 Years
Class A
  $653    $990    $1,350    $2,361
Class I
  $96    $400    $726    $1,650
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination January 31, 2018
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The management fee has been restated to reflect current fees.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock 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 Class A shares and Class I 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. The costs for the Fund reflect the net expenses of the Fund that result from the fee waiver/expense reimbursement in the first year only. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:
Wilmington Multi-Manager International Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.81% [1]
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.57%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.66%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.59%) [2]
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement rr_NetExpensesOverAssets 1.07%
1 Year rr_ExpenseExampleYear01 $ 653
3 Years rr_ExpenseExampleYear03 990
5 Years rr_ExpenseExampleYear05 1,350
10 Years rr_ExpenseExampleYear10 $ 2,361
Wilmington Multi-Manager International Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.81% [1]
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.57%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.41%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.47%) [2]
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement rr_NetExpensesOverAssets 0.94%
1 Year rr_ExpenseExampleYear01 $ 96
3 Years rr_ExpenseExampleYear03 400
5 Years rr_ExpenseExampleYear05 726
10 Years rr_ExpenseExampleYear10 $ 1,650
[1] The management fee has been restated to reflect current fees.
[2] The Fund's Advisor, distributor and shareholder services provider have agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses paid by the Fund's Class A and Class I Shares will not exceed 1.04% and 0.91%, respectively, not including the effects of acquired fund fees and expenses, taxes, or other extraordinary expenses. This waiver may be amended or withdrawn after January 31, 2018, or with the agreement of the Fund's Board of Trustees.