Shareholder Report, Average Annual Return (Details) 194692_Themes US Small Cap Cash Flow Champions ETF_TF_TSR Annual {TF} |
12 Months Ended | 22 Months Ended |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2025 |
|
| Themes US Small Cap Cash Flow Champions ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Themes US Small Cap Cash Flow Champions ETF | |
| Average Annual Return, Percent | 8.43% | 17.71% |
| S&P 500 Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | S&P 500 Index | |
| Average Annual Return, Percent | 17.60% | 24.09% |
| Solactive US Small Cap Cash Flow Champions Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Solactive US Small Cap Cash Flow Champions Index | |
| Average Annual Return, Percent | 7.97% | 17.67% |