v3.25.4
Transamerica High Yield Bond Expense Example - Retail Class [Member] - Transamerica High Yield Bond
Oct. 31, 2025
USD ($)
A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 576
Expense Example, with Redemption, 3 Years 790
Expense Example, with Redemption, 5 Years 1,022
Expense Example, with Redemption, 10 Years 1,686
C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 274
Expense Example, with Redemption, 3 Years 539
Expense Example, with Redemption, 5 Years 928
Expense Example, with Redemption, 10 Years 2,019
I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 63
Expense Example, with Redemption, 3 Years 218
Expense Example, with Redemption, 5 Years 386
Expense Example, with Redemption, 10 Years 874
I2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 340
Expense Example, with Redemption, 10 Years 762
R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 62
Expense Example, with Redemption, 3 Years 195
Expense Example, with Redemption, 5 Years 340
Expense Example, with Redemption, 10 Years $ 762