v3.26.1
DWS RREEF Global Real Estate Securities Fund Expense Example, No Redemption - DWS RREEF Global Real Estate Securities Fund
Apr. 29, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 676
Expense Example, No Redemption, 3 Years 966
Expense Example, No Redemption, 5 Years 1,278
Expense Example, No Redemption, 10 Years 2,159
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 183
Expense Example, No Redemption, 3 Years 635
Expense Example, No Redemption, 5 Years 1,114
Expense Example, No Redemption, 10 Years 2,257
Class R6  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 81
Expense Example, No Redemption, 3 Years 291
Expense Example, No Redemption, 5 Years 519
Expense Example, No Redemption, 10 Years 1,173
INST Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 82
Expense Example, No Redemption, 3 Years 314
Expense Example, No Redemption, 5 Years 564
Expense Example, No Redemption, 10 Years 1,281
Class S  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 92
Expense Example, No Redemption, 3 Years 351
Expense Example, No Redemption, 5 Years 631
Expense Example, No Redemption, 10 Years $ 1,428