v3.26.3
Shareholder Report, Line Graph (Details) 190906_Boston Partners Global Equity Fund_R6 Share Class_TSR Annual {R6 Share Class} - USD ($)
12 Months Ended
Jul. 06, 2026
Aug. 31, 2026
R6 Share Class    
Account Value [Line Items]    
Line Graph and Table Measure Name   R6 Share Class
Accumulated Value $ 100,000 $ 104,361
MSCI THE WORLD INDEX Gross (USD) [Member]    
Account Value [Line Items]    
Line Graph and Table Measure Name   MSCI THE WORLD INDEX Gross (USD)
Accumulated Value 100,000 $ 102,291
MSCI THE WORLD INDEX Net (USD) [Member]    
Account Value [Line Items]    
Line Graph and Table Measure Name   MSCI THE WORLD INDEX Net (USD)
Accumulated Value 100,000 $ 102,252
MSCI World Value Net Total Return Index [Member]    
Account Value [Line Items]    
Line Graph and Table Measure Name   MSCI World Value Net Total Return Index
Accumulated Value $ 100,000 $ 104,685