Expense Example, No Redemption - Class ACIS [Member] - DWS Intermediate Tax-Free Fund |
May 31, 2025
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 348 |
| Expense Example, No Redemption, 3 Years | 517 |
| Expense Example, No Redemption, 5 Years | 700 |
| Expense Example, No Redemption, 10 Years | 1,231 |
| Class C | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 151 |
| Expense Example, No Redemption, 3 Years | 489 |
| Expense Example, No Redemption, 5 Years | 851 |
| Expense Example, No Redemption, 10 Years | 1,660 |
| INST Class | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 49 |
| Expense Example, No Redemption, 3 Years | 169 |
| Expense Example, No Redemption, 5 Years | 300 |
| Expense Example, No Redemption, 10 Years | 683 |
| Class S | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 49 |
| Expense Example, No Redemption, 3 Years | 182 |
| Expense Example, No Redemption, 5 Years | 327 |
| Expense Example, No Redemption, 10 Years | $ 750 |