v3.25.4
Transamerica Asset Allocation - Conservative Portfolio Expense Example - Retail Class [Member] - Transamerica Asset Allocation - Conservative Portfolio
Oct. 31, 2025
USD ($)
A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 651
Expense Example, with Redemption, 3 Years 866
Expense Example, with Redemption, 5 Years 1,098
Expense Example, with Redemption, 10 Years 1,762
C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 285
Expense Example, with Redemption, 3 Years 572
Expense Example, with Redemption, 5 Years 985
Expense Example, with Redemption, 10 Years 2,137
I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 73
Expense Example, with Redemption, 3 Years 249
Expense Example, with Redemption, 5 Years 440
Expense Example, with Redemption, 10 Years 992
R  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 129
Expense Example, with Redemption, 3 Years 403
Expense Example, with Redemption, 5 Years 697
Expense Example, with Redemption, 10 Years 1,534
R3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 332
Expense Example, with Redemption, 5 Years 591
Expense Example, with Redemption, 10 Years $ 1,333