Shareholder Report, Average Annual Return (Details) 1014071_Putnam BDC Income ETF_Single Class_TSR Annual {Single Class} |
12 Months Ended | 43 Months Ended |
|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2026 |
|
| Putnam BDC Income ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Putnam BDC Income ETF (NAV) | |
| Average Annual Return, Percent | 0.13% | 14.62% |
| Russell 3000 Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Russell 3000 Index | |
| Average Annual Return, Percent | 31.01% | 21.32% |
| S&P BDC Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | S&P BDC Index | |
| Average Annual Return, Percent | (1.87%) | 11.22% |