Shareholder Report, Average Annual Return (Details) 194683_Themes Natural Monopoly ETF_TF_TSR Annual {TF} |
12 Months Ended | 22 Months Ended |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2025 |
|
| Themes Natural Monopoly ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Themes Natural Monopoly ETF | |
| Average Annual Return, Percent | 10.82% | 16.43% |
| MSCI ACWI Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | MSCI ACWI Index | |
| Average Annual Return, Percent | 17.27% | 22.46% |
| Solactive Natural Monopoly Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Solactive Natural Monopoly Index | |
| Average Annual Return, Percent | 11.13% | 16.77% |