Annual Fund Operating Expenses - Putnam Strategic Intermediate Municipal Fund |
Jul. 31, 2025 |
|---|---|
| Class C Shares | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.43% |
| Distribution and Service (12b-1) Fees | 1.00% |
| Other Expenses (as a percentage of Assets): | 0.22% |
| Expenses (as a percentage of Assets) | 1.65% |
| Class A Shares | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.43% |
| Distribution and Service (12b-1) Fees | 0.25% |
| Other Expenses (as a percentage of Assets): | 0.22% |
| Expenses (as a percentage of Assets) | 0.90% |
| CLASS Y | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.43% |
| Distribution and Service (12b-1) Fees | 0.00% |
| Other Expenses (as a percentage of Assets): | 0.22% |
| Expenses (as a percentage of Assets) | 0.65% |
| Class R6 Shares | |
| Prospectus [Line Items] | |
| Management Fees (as a percentage of Assets) | 0.43% |
| Distribution and Service (12b-1) Fees | 0.00% |
| Other Expenses (as a percentage of Assets): | 0.13% |
| Expenses (as a percentage of Assets) | 0.56% |