v3.26.1
Shareholder Report, Line Graph (Details) 194693_Themes Robotics - Automation ETF_TF_TSR Annual {TF} - USD ($)
12 Months Ended
Sep. 30, 2024
Apr. 22, 2024
Sep. 30, 2025
Themes Humanoid Robotics ETF      
Account Value [Line Items]      
Line Graph and Table Measure Name     Themes Humanoid Robotics ETF
Accumulated Value $ 11,251 $ 10,000 $ 16,146
MSCI ACWI Index      
Account Value [Line Items]      
Line Graph and Table Measure Name     MSCI ACWI Index
Accumulated Value 11,554 10,000 $ 13,548
Solactive Industrial Robotics & Automation Index      
Account Value [Line Items]      
Line Graph and Table Measure Name     Solactive Industrial Robotics & Automation Index
Accumulated Value $ 10,639 $ 10,000 $ 13,885