v3.25.3
Expense Example, No Redemption - Class C
Jul. 31, 2025
USD ($)
(Nomura Strategic Income Fund - Classes A, C, R and Institutional) | Nomura Strategic Income Fund  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 163
Expense Example, No Redemption, 3 Years 553
Expense Example, No Redemption, 5 Years 969
Expense Example, No Redemption, 10 Years 2,129
(Nomura Emerging Markets Debt Corporate Fund - Classes A, C and Institutional) | Nomura Emerging Markets Debt Corporate Fund  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 183
Expense Example, No Redemption, 3 Years 631
Expense Example, No Redemption, 5 Years 1,106
Expense Example, No Redemption, 10 Years $ 2,417