Transamerica Asset Allocation - Growth Portfolio Annual Fund Operating Expenses - Retail Class [Member] - Transamerica Asset Allocation - Growth Portfolio |
Oct. 31, 2025 |
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|---|---|---|---|---|---|---|---|---|
| Prospectus [Line Items] | ||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | <span style="font-family:Times New Roman;font-size:8pt;">March </span><span style="font-family:Times New Roman;font-size:8pt;">1, 2027</span> | |||||||
| A | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.10% | |||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||
| Other Expenses (as a percentage of Assets): | 0.13% | |||||||
| Acquired Fund Fees and Expenses | 0.71% | [1] | ||||||
| Expenses (as a percentage of Assets) | 1.19% | |||||||
| Fee Waiver or Reimbursement | 0.00% | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 1.19% | |||||||
| C | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.10% | |||||||
| Distribution and Service (12b-1) Fees | 1.00% | |||||||
| Other Expenses (as a percentage of Assets): | 0.20% | |||||||
| Acquired Fund Fees and Expenses | 0.71% | [1] | ||||||
| Expenses (as a percentage of Assets) | 2.01% | |||||||
| Fee Waiver or Reimbursement | 0.00% | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 2.01% | |||||||
| I | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.10% | |||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||
| Other Expenses (as a percentage of Assets): | 0.15% | |||||||
| Acquired Fund Fees and Expenses | 0.71% | [1] | ||||||
| Expenses (as a percentage of Assets) | 0.96% | |||||||
| Fee Waiver or Reimbursement | (0.10%) | [2],[3] | ||||||
| Net Expenses (as a percentage of Assets) | 0.86% | |||||||
| R | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.10% | |||||||
| Distribution and Service (12b-1) Fees | 0.50% | |||||||
| Other Expenses (as a percentage of Assets): | 0.13% | |||||||
| Acquired Fund Fees and Expenses | 0.71% | [1] | ||||||
| Expenses (as a percentage of Assets) | 1.44% | |||||||
| Fee Waiver or Reimbursement | 0.00% | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 1.44% | |||||||
| R3 | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.10% | |||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||
| Other Expenses (as a percentage of Assets): | 0.20% | |||||||
| Acquired Fund Fees and Expenses | 0.71% | [1] | ||||||
| Expenses (as a percentage of Assets) | 1.26% | |||||||
| Fee Waiver or Reimbursement | (0.31%) | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 0.95% | |||||||
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