Shareholder Report, Line Graph (Details) 194687_Themes US R-D Champions ETF_TF_TSR Annual {TF} - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Dec. 13, 2023 |
Sep. 30, 2025 |
|
| Themes US R&D Champions ETF | |||
| Account Value [Line Items] | |||
| Line Graph and Table Measure Name | Themes US R&D Champions ETF | ||
| Accumulated Value | $ 12,456 | $ 10,000 | $ 13,647 |
| S&P 500 Index | |||
| Account Value [Line Items] | |||
| Line Graph and Table Measure Name | S&P 500 Index | ||
| Accumulated Value | 12,549 | 10,000 | $ 14,757 |
| Solactive US R&D Champions Index | |||
| Account Value [Line Items] | |||
| Line Graph and Table Measure Name | Solactive US R&D Champions Index | ||
| Accumulated Value | $ 12,498 | $ 10,000 | $ 13,783 |