Shareholder Report, Line Graph (Details)
|
12 Months Ended |
|
Sep. 30, 2024
USD ($)
|
|---|
| Themes Airlines ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Airlines ETF
|
| Account Value |
$ 10,663
|
| Themes Cloud Computing ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Cloud Computing ETF
|
| Account Value |
$ 11,221
|
| Themes Copper Miners ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Copper Miners ETF
|
| Account Value |
$ 11,203
|
| Themes Cybersecurity ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Cybersecurity ETF
|
| Account Value |
$ 11,583
|
| Themes European Luxury ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes European Luxury ETF
|
| Account Value |
$ 9,498
|
| Themes Generative Artificial Intelligence ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Generative Artificial Intelligence ETF
|
| Account Value |
$ 11,935
|
| Themes Global Systemically Important Banks ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Global Systemically Important Banks ETF
|
| Account Value |
$ 12,509
|
| Themes Gold Miners ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Gold Miners ETF
|
| Account Value |
$ 15,048
|
| Themes Lithium & Battery Metal Miners ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Lithium & Battery Metal Miners ETF
|
| Account Value |
$ 12,244
|
| Themes Natural Monopoly ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Natural Monopoly ETF
|
| Account Value |
$ 11,871
|
| Themes Robotics & Automation ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Robotics & Automation ETF
|
| Account Value |
$ 11,251
|
| Themes Silver Miners ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Silver Miners ETF
|
| Account Value |
$ 11,601
|
| Themes Uranium & Nuclear ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes Uranium & Nuclear ETF
|
| Account Value |
$ 10,564
|
| Themes US Cash Flow Champions ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes US Cash Flow Champions ETF
|
| Account Value |
$ 12,080
|
| Themes US Infrastructure ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes US Infrastructure ETF
|
| Account Value |
$ 10,831
|
| Themes US R&D Champions ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes US R&D Champions ETF
|
| Account Value |
$ 12,456
|
| Themes US Small Cap Cash Flow Champions ETF |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Themes US Small Cap Cash Flow Champions ETF
|
| Account Value |
$ 12,374
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,405
|
| Solactive Airlines Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Airlines Index
|
| Account Value |
$ 10,698
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,049
|
| Solactive Cloud Computing Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Cloud Computing Index
|
| Account Value |
$ 11,253
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 10,146
|
| BITA Global Copper Mining Select Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
BITA Global Copper Mining Select Index
|
| Account Value |
$ 11,226
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,405
|
| Solactive Cybersecurity Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Cybersecurity Index
|
| Account Value |
$ 11,631
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,049
|
| Solactive European Luxury Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive European Luxury Index
|
| Account Value |
$ 9,547
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,405
|
| Solactive Generative Artificial Intelligence Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Generative Artificial Intelligence Index
|
| Account Value |
$ 12,002
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,049
|
| KBW Nasdaq Global Bank Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
KBW Nasdaq Global Bank Index
|
| Account Value |
$ 12,628
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,288
|
| Solactive Global Pure Gold Miners Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Global Pure Gold Miners Index
|
| Account Value |
$ 15,141
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 10,146
|
| BITA Global Lithium and Battery Metals Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
BITA Global Lithium and Battery Metals Index
|
| Account Value |
$ 12,195
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 12,288
|
| Solactive Natural Monopoly Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Natural Monopoly Index
|
| Account Value |
$ 11,901
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 11,554
|
| Solactive Industrial Robotics & Automation Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive Industrial Robotics & Automation Index
|
| Account Value |
$ 10,639
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 11,282
|
| STOXX Global Silver Mining Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
STOXX Global Silver Mining Index
|
| Account Value |
$ 11,638
|
| MSCI ACWI Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
MSCI ACWI Index
|
| Account Value |
$ 10,146
|
| BITA Global Uranium and Nuclear Select Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
BITA Global Uranium and Nuclear Select Index
|
| Account Value |
$ 10,578
|
| S&P 500 Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
S&P 500 Index
|
| Account Value |
$ 12,549
|
| Solactive US Cash Flow Champions Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive US Cash Flow Champions Index
|
| Account Value |
$ 12,114
|
| S&P 500 Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
S&P 500 Index
|
| Account Value |
$ 10,382
|
| Solactive United States Infrastructure Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive United States Infrastructure Index
|
| Account Value |
$ 10,833
|
| S&P 500 Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
S&P 500 Index
|
| Account Value |
$ 12,549
|
| Solactive US R&D Champions Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive US R&D Champions Index
|
| Account Value |
$ 12,498
|
| S&P 500 Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
S&P 500 Index
|
| Account Value |
$ 12,549
|
| Solactive US Small Cap Cash Flow Champions Index [Member] |
|
| Account Value [Line Items] |
|
| Line Graph and Table Measure Name |
Solactive US Small Cap Cash Flow Champions Index
|
| Account Value |
$ 12,419
|