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DWS RREEF Global Real Estate Securities Fund Annual Fund Operating Expenses - DWS RREEF Global Real Estate Securities Fund
Apr. 29, 2026
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination <span style="font-family:Arial;font-size:10pt;">September 30, 2027</span>
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.48% [1]
Expenses (as a percentage of Assets) 1.43%
Fee Waiver or Reimbursement (0.38%)
Net Expenses (as a percentage of Assets) 1.05%
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.43% [1]
Expenses (as a percentage of Assets) 2.13%
Fee Waiver or Reimbursement (0.33%)
Net Expenses (as a percentage of Assets) 1.80%
Class R6  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.27% [1]
Expenses (as a percentage of Assets) 0.97%
Fee Waiver or Reimbursement (0.18%)
Net Expenses (as a percentage of Assets) 0.79%
INST Class  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.37% [1]
Expenses (as a percentage of Assets) 1.07%
Fee Waiver or Reimbursement (0.27%)
Net Expenses (as a percentage of Assets) 0.80%
Class S  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.70%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.50% [1]
Expenses (as a percentage of Assets) 1.20%
Fee Waiver or Reimbursement (0.30%)
Net Expenses (as a percentage of Assets) 0.90%
[1] “Other expenses” are restated to exclude a negative expense adjust-ment related to proxy expenses. “Other expenses” would have been 0.44%, 0.39%, 0.23%, 0.33% and 0.46% for Class A, Class C, Class R6, Institutional Class and Class S, respectively, had the negative expense adjustment related to proxy expenses been included.