Transamerica High Yield Muni Expense Example, No Redemption - Retail Class [Member] - Transamerica High Yield Muni |
Oct. 31, 2025
USD ($)
|
|---|---|
| A | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 415 |
| Expense Example, No Redemption, 3 Years | 626 |
| Expense Example, No Redemption, 5 Years | 855 |
| Expense Example, No Redemption, 10 Years | 1,512 |
| C | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 154 |
| Expense Example, No Redemption, 3 Years | 534 |
| Expense Example, No Redemption, 5 Years | 939 |
| Expense Example, No Redemption, 10 Years | 2,072 |
| I | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 78 |
| Expense Example, No Redemption, 3 Years | 254 |
| Expense Example, No Redemption, 5 Years | 445 |
| Expense Example, No Redemption, 10 Years | 997 |
| I2 | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 73 |
| Expense Example, No Redemption, 3 Years | 227 |
| Expense Example, No Redemption, 5 Years | 395 |
| Expense Example, No Redemption, 10 Years | $ 883 |