Tema International Defense ETF Industry Concentration Risk [Member] Aerospace and Defense Risk [Member] Defense Tech Company Risk [Member] Industrial Sector Risk [Member] Absence of Prior Active Market Risk [Member] Active Management Risk [Member] Authorized Participant Concentration Risk [Member] Common Stock Risk [Member] Currency Risk [Member] Cybersecurity and Disaster Recovery Risks [Member] Depositary Receipt Risk [Member] Early Close/Trading Halt Risk [Member] Emerging Markets Securities Risk [Member] ETF Risk [Member] Not Individually Redeemable [Member] Trading Issues [Member] Market Price Variance Risk [Member] Authorized Participant Risk [Member] Fluctuation of Net Asset Value Risk [Member] Foreign Custody Risk [Member] Foreign Securities Risk [Member] Geographic Investment Risk [Member] Investment Risk [Member] Issuer-Specific Risk [Member] Large-Capitalization Risk [Member] Market Risk and Selection Risk [Member] National Closed Market Trading Risk [Member] New Fund Risk [Member] Non-U.S. Securities Risk [Member] Operational Risk [Member] Privately Placed and Restricted Securities Risk [Member] Proprietary Infrastructure Risk [Member] Securities Lending Risk [Member] Small- and Mid-Capitalization Company Risk [Member] Valuation Risk [Member] Value-Oriented Investment Strategies Risk [Member] Tema International Defense ETF [Member] Tema International Defense ETF. Tema International Defense ETF. Cybersecurity and Disaster Recovery Risks. Active Management Risk. Authorized Participant Concentration Risk. Common Stock Risk. Early Close/Trading Halt Risk. Fluctuation of Net Asset Value Risk. Issuer-Specific Risk. Large-Capitalization Risk. New Fund Risk. Operational Risk. Industry Concentration Risk. Value-Oriented Investment Strategies Risk. Valuation Risk. Small- and Mid-Capitalization Company Risk. Market Risk and Selection Risk. Investment Risk. Geographic Investment Risk. Foreign Securities Risk. Emerging Markets Securities Risk. Depositary Receipt Risk. Currency Risk. Absence of Prior Active Market Risk. Proprietary Infrastructure Risk. Securities Lending Risk. ETF Risk. Not Individually Redeemable. Trading Issues. Market Price Variance Risk. Authorized Participant Risk. National Closed Market Trading Risk.  Privately Placed and Restricted Securities Risk.  Aerospace and Defense Risk. Defense Tech Company Risk. Industrial Sector Risk. Foreign Custody Risk. Non-U.S. Securities Risk.