Label	Element	Value
Prospectus:	rr_ProspectusTable
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jul. 29, 2016
Entity Registrant Name	dei_EntityRegistrantName	Global X Funds
Central Index Key	dei_EntityCentralIndexKey	0001432353
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jul. 29, 2016
Document Effective Date	dei_DocumentEffectiveDate	Jul. 29, 2016
Prospectus Date	rr_ProspectusDate	Jul. 29, 2016
Global X Thematic ETF Prospectus \| Global X Education Thematic ETF Series
Prospectus:	rr_ProspectusTable
Risk/Return [Heading]	rr_RiskReturnHeading	Global X Education Thematic ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Global X Education Thematic ETF (“Fund”) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the INDXX Global Education Thematic Index (“Underlying Index”).
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares (“Shares”) of the Fund. You will also incur usual and customary brokerage commissions when buying and selling Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling Shares of the Fund in the secondary market.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its total assets in the securities of the Underlying Index and in American Depositary Receipts ("ADRs") and Global Depositary Receipts ("GDRs") based on the securities in the Underlying Index. The Fund’s 80% investment policy is non-fundamental and requires 60 days’ prior written notice to shareholders before it can be changed. The objective of the Underlying Index is to provide exposure to exchange-listed companies globally that provide educational products and services, including companies involved in online learning and educational content/publishing, as well as early childhood education, higher education and professional education, (collectively, “Education Companies”), as defined by INDXX, the provider of the Underlying Index ("Index Provider"). The eligible universe of the Underlying Index includes among the most liquid and investable companies in accordance with the market capitalization and liquidity criteria associated with developed and emerging markets, as defined by the Index Provider. As of July 1, 2016, companies must have a minimum market capitalization of $100 million and a minimum average daily turnover for the last 6 months greater than or equal to $2 million in order to be eligible for inclusion in the Underlying Index. As of July 1, 2016, components from the following countries were eligible for inclusion in the Underlying Index: Australia, Austria, Belgium, Brazil, Canada, Chile, China, Colombia, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hong Kong, Hungary, Indonesia, Ireland, Israel, Italy, Japan, Malaysia, Netherlands, New Zealand, Norway, Philippines, Poland, Portugal, Peru, Qatar, Russia, Singapore, South Africa, Spain, Sweden, Switzerland, South Korea, Thailand, Turkey, United Arab Emirates, the United Kingdom and the United States. From the eligible universe, the Index Provider identifies Education Companies by applying a proprietary analysis that consists of two primary components: theme identification and company analysis. As part of the theme identification process, the Index Provider analyzes industry reports, investment research and consumer data related to the education industry in order to establish the themes that are expected to provide the most exposure to the growth of the education industry. As of July 1, 2016, the Index Provider has identified the following five education themes: (1) Educational Content/Publishing, (2) Online Learning, (3) Early Childhood Education, (4) Higher and Professional Education and (5) Education Finance, Housing and Services (collectively, “Education Themes”). In order to be included in the Underlying Index, a company must be identified as having significant exposure to one of these Education Themes. In the second step of the process, the Index Provider analyzes companies based on two primary criteria: revenue exposure and primary business operations. A company is identified as having significant exposure to one of the Education Themes if (i), according to a public filing, it generates a majority of its revenue from the sale of products or services from one of the Education Themes, (ii), in the absence of a revenue segment breakdown, it has stated its primary business to be in products and services focused on one of the Education Themes. Accordingly, the Fund assets will be concentrated (that is, it will hold 25% or more of its total assets) in companies that provide exposure to the education industry. The Underlying Index is weighted according to a modified capitalization weighting methodology and is reconstituted and rebalanced annually. At the annual rebalance, a capping methodology is applied to reduce concentration in individual securities and increase diversification of the Underlying Index. The Underlying Index may include large-, mid- or small-capitalization companies, and components primarily include consumer discretionary, financials and information technology companies. The Fund's investment objective and Underlying Index may be changed without shareholder approval. The Underlying Index is sponsored by the Index Provider, which is an organization that is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations (such as tax diversification requirements) that apply to the Fund but not the Underlying Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Underlying Index, before fees and expenses, will exceed 95%. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy. The Fund concentrates its investments (i.e., holds 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of July 1, 2016, the Underlying Index was concentrated in the Consumer Discretionary Sector.
Risk [Heading]	rr_RiskHeading	SUMMARY OF PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Funds’ Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI"). ADR/GDR Risk: To the extent the Fund seeks exposure to foreign companies, the Fund’s investments may be in the form of depositary receipts or other securities convertible into securities of foreign issuers, including ADRs and GDRs. While the use of ADRs and GDRs, which are traded on exchanges and represent an ownership in a foreign security, provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in ADRs and GDRs continue to be subject to certain of the risks associated with investing directly in foreign securities. Asset Class Risk: Securities in the Underlying Index or the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes. Authorized Participants Concentration Risk: The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). Only APs who have entered into agreements with the Fund’s distributor may engage in creation or redemption transactions directly with the Fund. To the extent that those APs exit the business or are unable to process creation and/or redemption orders, and no other AP is able to step forward to create or redeem in either of those cases, Shares may trade like closed-end fund shares at a discount to NAV and possibly face trading halts and/or delisting from NASDAQ (the "Exchange"). Concentration Risk: To the extent that the Underlying Index concentrates in the securities of issuers in a particular country, industry, market, asset class, or sector, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a country, industry, market, asset class, or sector, the Fund faces more risks than if it were diversified broadly over numerous countries, industries, markets, asset classes, or sectors. Such risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a particular country, industry, market, asset class, or sector. In addition, at times, such country, industry, market, asset class, or sector may be out of favor and underperform other similar categories or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Consumer Discretionary Sector. Currency Risk: Because the Fund's NAV is determined in U.S. dollars, the Fund's NAV could decline if currencies of the underlying securities depreciate against the U.S. dollar. Custody Risk: Less developed markets are more likely to experience problems with the clearing and settling of trades. Cyber Security Risk: Failures or breaches of the electronic systems of the Fund, the Fund's adviser, and the Fund's other service providers, market makers, Authorized Participants or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund's business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherit limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund's service providers, market makers, Authorized Participants or issuers of securities in which the Fund invests. Emerging Markets Risk: The Fund’s investment in an emerging market country may be subject to a greater risk of loss than investments in developed markets. Securities markets of emerging market countries are less liquid, subject to greater price volatility, have smaller market capitalizations, have less government regulation, and are not subject to as extensive and frequent accounting, financial, and other reporting requirements as the securities markets of more developed countries. Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. Foreign Security Risk: Investments in the securities of foreign issuers (including investments in ADRs and GDRs) are subject to the risks associated with investing in those foreign markets, such as heightened risks of inflation or nationalization. In addition, securities of foreign issuers may lose value due to political, economic and geographic events affecting a foreign issuer or market. During periods of social, political or economic instability in a country or region, the value of a foreign security traded on U.S. exchanges, nonetheless, could be affected by, among other things, increasing price volatility, illiquidity, or the closure of the primary market on which the security (or the security underlying the ADR or GDR) is traded. You may lose money due to political, economic and geographic events affecting a foreign issuer or market. Geographic Risk: A natural disaster could occur in a geographic region in which the Fund invests, which could affect the economy or particular business operations of companies in the specific geographic region, causing an adverse impact on the Fund’s investments in the affected region. International Closed-Market Trading: Because the Fund’s investments may be traded in markets that are closed when the Exchange is open, there are likely to be deviations between the current value of an underlying investment and last sale pricing (i.e., the last quote from its closed foreign market), resulting in premiums or discounts to NAV that may be greater than those experienced by other exchange-traded funds. Investable Universe of Companies Risk: The investable universe of companies in which a Fund may invest may be limited. If a company no longer meets the Index Provider’s criteria for inclusion in the Underlying Index, the Fund may need to reduce or eliminate its holdings in that company. The reduction or elimination of the Fund’s holdings in the company may have an adverse impact on the liquidity of the Fund’s underlying portfolio holdings and on Fund performance. Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline. Market Risk: The Fund's NAV could decline over short periods due to short-term market movements and over longer periods during market downturns. Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the 1940 Act. As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds. Passive Investment Risk: The Fund is not actively managed and the Adviser does not attempt to take defensive positions in declining markets. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, it would not necessarily buy or sell a security unless that security is added or removed, respectively, from the Underlying Index, even if that security generally is underperforming. Risks Related to Investing in the Consumer Discretionary Sector: The consumer discretionary sector may be affected by changes in domestic and international economies, exchange and interest rates, competition, consumers’ disposable income and consumer preferences, social trends and marketing campaigns. Risks Related to Investing in Education Companies: Education companies may be affected by changes in demographics and changes in consumer demands. Furthermore, government regulations, programs and policies can have a significant impact on the products and services provided by education companies. Some education companies rely heavily on tax breaks and government subsidies, which can be very policy-dependent and may not continue indefinitely in the future. Education companies are also affected by macroeconomic growth and the overall strength of the labor market, which can influence the demand for educational products and services. Some education companies have recently faced increased regulatory scrutiny, and in some cases litigation, due to business practices that were perceived as unfair and misleading to consumers. Ongoing and future legal actions could have a negative impact on education companies. Risks Related to Investing in Hong Kong: Investments in Hong Kong issuers may subject the Fund to legal, regulatory, political, currency, security, and economic risk specific to Hong Kong. China is Hong Kong’s largest trading partner, both in terms of exports and imports. Any changes in the Chinese economy, trade regulations or currency exchange rates, or a tightening of China’s control over Hong Kong, may have an adverse impact on Hong Kong’s economy. Risks Related to Investing in International Stocks: The Fund’s investments in foreign stocks can be riskier than U.S. stock investments. The prices of foreign stocks and the prices of U.S. stocks have, at times, moved in opposite directions. In addition, world events - such as political upheaval, financial troubles, or natural disasters - could adversely affect the value of securities issued by companies in foreign countries or regions. Stocks of companies located in emerging markets will be substantially more volatile, and substantially less liquid, than the stocks of companies located in more developed foreign markets. Risks Related to Investing in the United Kingdom: Investments in United Kingdom issuers may subject the Fund to regulatory, political, currency, security, and economic risks specific to the United Kingdom. The United Kingdom has one of the largest economies in Europe, and the United States and other European countries are substantial trading partners of the United Kingdom. As a result, the United Kingdom’s economy may be impacted by changes to the economic condition of the United States and other European countries. The United Kingdom’s economy, along with certain other European Union (the “EU”) economies, experienced a significant economic slowdown during the financial crisis that began in 2007; certain United Kingdom financial institutions suffered significant losses, were severely under-capitalized and required government intervention to survive. In a referendum held on June 23, 2016, the United Kingdom resolved to leave the European Union. The referendum may introduce significant new uncertainties and instability in the financial markets as the United Kingdom negotiates its exit from the European Union. Risks Related to Investing in the United States: The Fund may have significant exposure to United States issuers. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. Small- and Mid-Capitalization Companies Risk: Small- and mid-capitalization companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. In addition, these companies are often subject to less analyst coverage and may be in early and less predictable periods of their corporate existences. These companies tend to have smaller revenues, narrower product lines, less management depth and experience, smaller shares of their product or service markets, fewer financial resources and less competitive strength than larger companies. Tracking Error Risk: The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints. Trading Halt Risk: An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell certain securities or financial instruments. In such circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. Valuation Risk: The sales price the Fund could receive for a security may differ from the Fund’s valuation of the security and may differ from the value used by the Underlying Index, particularly for securities that trade in low value or volatile markets or that are valued using a fair value methodology. The value of the securities in the Fund's portfolio may change on days when shareholders will not be able to purchase or sell the Fund's Shares.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the 1940 Act. As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Global X Thematic ETF Prospectus \| Global X Education Thematic ETF Series \| Global X Education Thematic ETF
Prospectus:	rr_ProspectusTable
Trading Symbol	dei_TradingSymbol	EDUX
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.68%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	none
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.68%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 69
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 218
Global X Thematic ETF Prospectus \| Global X FinTech ETF Series
Prospectus:	rr_ProspectusTable
Risk/Return [Heading]	rr_RiskReturnHeading	Global X FinTech Thematic ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Global X FinTech Thematic ETF (“Fund”) seeks to provide investment results that correspond generally to the price and yield performance, before fees and expenses, of the INDXX Global Fintech Thematic Index (“Underlying Index”).
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares (“Shares”) of the Fund. You will also incur usual and customary brokerage commissions when buying and selling Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling Shares of the Fund in the secondary market.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its total assets in the securities of the Underlying Index. The Fund’s 80% investment policy is non-fundamental and requires 60 days’ prior written notice to shareholders before it can be changed. The Underlying Index is designed to provide exposure to exchange-listed companies in developed markets that provide financial technology products and services, including companies involved in mobile payments, peer-to-peer (P2P) and marketplace lending, financial analytics software and alternative currencies (collectively, “FinTech Companies”), as defined by INDXX, the provider of the Underlying Index. The eligible universe of the Underlying Index includes among the most liquid and investable companies in accordance with the standard market capitalization and liquidity criteria associated with developed markets, as defined by the Index Provider. As of July 1, 2016, companies must have a minimum market capitalization of $100 million and a minimum average daily turnover for the last 6 months greater than or equal to $2 million in order to be eligible for inclusion in the Underlying Index. As of July 1, 2016, components from the following countries were eligible for inclusion in the Underlying Index: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, South Korea, the United Kingdom and the United States. From the eligible universe, the Index Provider identifies FinTech Companies by applying a proprietary analysis that consists of two primary components: theme identification and company analysis. As part of the theme identification process, the Index Provider analyzes industry reports, investment research and consumer data related to the fintech industry in order to establish the themes that are expected to provide the most exposure to the growth of the fintech industry. As of July 1, 2016, the Index Provider has identified the following six fintech themes: (1) Mobile Payments (2) Peer-to-Peer (P2P) and Marketplace Lending, (3) Enterprise Solutions, (4) Blockchain and Alternative Currencies, (5) Crowdfunding and (6) Personal Finance Software and Automated Wealth Management/Trading (collectively, “FinTech Themes”). In order to be included in the Underlying Index, a company must be identified as having significant exposure to one of these FinTech Themes. In the second step of the process, companies are analyzed based on two primary criteria: revenue exposure and primary business operations. A company is deemed to have significant exposure to one of the FinTech Themes if (i), according to a public filing, it generates a majority of its revenue from one of the FinTech Themes, (ii), in the absence of a revenue segment breakdown, it has stated its primary business to be in products and services focused on one of the FinTech Themes. Accordingly, the Fund assets will be concentrated (that is, it will hold 25% or more of its total assets) in companies that provide exposure to the fintech industry. The Underlying Index is weighted according to a modified capitalization weighting methodology and is reconstituted and rebalanced annually. At the annual rebalance, a capping methodology is applied to reduce concentration in individual securities and increase diversification of the Underlying Index. The Underlying Index may include large-, mid- or small-capitalization companies, and components primarily include financial and information technology companies. The Fund's investment objective and Underlying Index may be changed without shareholder approval. The Underlying Index is sponsored by the Index Provider, which is an organization that is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations (such as tax diversification requirements) that apply to the Fund but not the Underlying Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Underlying Index, before fees and expenses, will exceed 95%. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy. The Fund concentrates its investments (i.e., holds 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of July 1, 2016, the Underlying Index was concentrated in the Financials Sector and the Information Technology Sector.
Risk [Heading]	rr_RiskHeading	SUMMARY OF PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Fund’s Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI"). ADR/GDR Risk: To the extent the Fund seeks exposure to foreign companies, the Fund’s investments may be in the form of depositary receipts or other securities convertible into securities of foreign issuers, including ADRs and GDRs. While the use of ADRs and GDRs, which are traded on exchanges and represent an ownership in a foreign security, provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in ADRs and GDRs continue to be subject to certain of the risks associated with investing directly in foreign securities. Asset Class Risk: Securities in the Underlying Index or otherwise held in the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes. Authorized Participants Concentration Risk: The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). Only APs who have entered into agreements with the Fund’s distributor may engage in creation or redemption transactions directly with the Fund. To the extent that those APs exit the business or are unable to process creation and/or redemption orders, and no other AP is able to step forward to create or redeem in either of those cases, Shares may trade like closed-end fund shares at a discount to NAV and possibly face trading halts and/or delisting from NASDAQ (the "Exchange"). Concentration Risk: To the extent that the Underlying Index concentrates in the securities of issuers in a particular country, industry, market, asset class, or sector, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a country, industry, market, asset class, or sector, the Fund faces more risks than if it were diversified broadly over numerous countries, industries, markets, asset classes, or sectors. Such risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a particular country, industry, market, asset class, or sector. In addition, at times, such country, industry, market, asset class, or sector may be out of favor and underperform other similar categories or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Financials Sector and Risks Related to Investing in the Information Technology Sector. Currency Risk: The Fund may invest in securities denominated in foreign currencies. Because the Fund's NAV is determined in U.S. dollars, the Fund's NAV could decline if the relevant foreign currencies depreciate against the U.S. dollar. Cyber Security Risk: Failures or breaches of the electronic systems of the Fund, the Fund's adviser, and the Fund's other service providers, market makers, Authorized Participants or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund's business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherit limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund's service providers, market makers, Authorized Participants or issuers of securities in which the Fund invests. Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. Foreign Securities Risk: Investments in the securities of foreign issuers are subject to the risks associated with investing in those foreign markets, such as heightened risks of inflation or nationalization. In addition, securities of foreign issuers may lose value due to political, economic and geographic events affecting a foreign issuer or market. During periods of social, political or economic instability in a country or region, the value of a foreign security traded on U.S. exchanges, nonetheless, could be affected by, among other things, increasing price volatility, illiquidity, or the closure of the primary market on which the security is traded. The Fund may lose value due to political, economic and geographic events affecting a foreign issuer or market. Geographic Risk: A natural disaster could occur in a geographic region in which the Fund invests, which could affect the economy or particular business operations of companies in the specific geographic region, causing an adverse impact on the Fund’s investments in the affected region. International Closed-Market Trading: Because the Fund’s investments may be traded in markets that are closed when the Exchange is open, there are likely to be deviations between the current value of an underlying investment and last sale pricing (i.e., the last quote from its closed foreign market), resulting in premiums or discounts to NAV that may be greater than those experienced by other exchange-traded funds. Investment Risk: An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your Shares, they could be worth less than what you paid for them. Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline. Large-Capitalization Companies Risk: Large-capitalization companies may trail the returns of the overall stock market. Large-capitalization stocks tend to go through cycles of doing better - or worse - than the stock market in general. These periods have, in the past, lasted for as long as several years. Market Risk: Turbulence in the financial markets and reduced liquidity may negatively affect issuers, which could have an adverse effect on the Fund. In addition, there is a risk that policy changes by the U.S. Government, Federal Reserve, or other government actors, which could include increasing interest rates, could cause increased volatility in financial markets and lead to higher levels of Fund redemptions, which could have a negative impact on the Fund. The Fund’s NAV could decline over short periods due to short-term market movements and over longer periods during market downturns. Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds. Operational Risk: The Fund is exposed to operational risk arising from a number of factors, including but not limited to human error, processing and communication errors, errors of the Fund's service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate for those risks that they are intended to address. Passive Investment Risk: The Fund is not actively managed and the Adviser does not attempt to take defensive positions in declining markets. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, it would not necessarily buy or sell a security unless that security is added or removed, respectively, from the Underlying Index, even if that security generally is underperforming. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. Premium/Discount Risk: Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for Shares may result in Shares trading at a significant premium or discount to NAV. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. Risk of Investing in Developed Countries: The Fund’s investment in developed country issuers may subject the Fund to regulatory, political, currency, security, and economic risks specific to developed countries. Developed countries tend to represent a significant portion of the global economy and have generally experienced slower economic growth than some other countries. A majority of developed countries have recently experienced a significant economic slowdown. In addition, developed countries may be impacted by changes to the economic health of certain key trading partners, regulatory burdens, debt burdens and the price or availability of certain commodities. Risks Related to Investing in Australia: Investments in Australian issuers may subject the Fund to regulatory, political, currency, security, and economic risk specific to Australia. The Australian economy is heavily dependent on exports from the energy, agricultural and mining sectors. This makes the Australian economy susceptible to fluctuations in the commodity markets. Australia is also dependent on trading with key trading partners. Risks Related to Investing in Fintech Companies: Fintech companies may be adversely impacted by government regulations, economic conditions and deterioration in credit markets. These companies may have significant exposure to consumers and businesses (especially small businesses) in the form of loans and other financial products or services. Fintech companies typically face intense competition and potentially rapid product obsolescence. In addition, many Fintech companies store sensitive consumer information and could be the target of cybersecurity attacks and other types of theft, which could have a negative impact on these companies. Many fintech companies currently operate under less regulatory scrutiny than traditional financial services companies and banks, but there is significant risk that regulatory oversight could increase in the future. Higher levels of regulation could increase costs and adversely impact the current business models of some fintech companies. These companies could be negatively impacted by disruptions in service caused by hardware or software failure, or by interruptions or delays in service by third-party data center hosting facilities and maintenance providers. Fintech companies involved in alternative currencies may face slow adoption rates and be subject to higher levels of regulatory scrutiny in the future, which could severely impact the viability of these companies. Fintech companies, especially smaller companies, tend to be more volatile than companies that do not rely heavily on technology. Risks Related to Investing in Germany: The Fund’s investment in German issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks specific to Germany. The German economy, along with certain other European Union (the “EU”) economies, experienced a significant economic slowdown during the financial crisis that began in 2007. Germany has an export dependent economy and therefore relies heavily on trade with key trading partners, including the Netherlands, China, the United States, France, Italy and other European countries. Germany is dependent on the economies of these other countries and any change in the price or demand for German exports may have an adverse impact on its economy. Risks Related to Investing in Switzerland: Investments in Swiss issuers may subject the Fund to legal, regulatory, political, currency, security, and economic risks specific to Switzerland. International trade is a large component of the Swiss economy and Switzerland depends upon exports to generate economic growth. The Swiss economy relies on certain key trading partners in order to sustain continued economic growth. Switzerland’s economic growth generally mirrors slowdowns and growth spurts experienced in other countries, including the United States and certain Western European countries. Risks Related to Investing in the Financials Sector: Performance of companies in the financials sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. This sector has experienced significant losses in the recent past, and the impact of more stringent capital requirements and of recent or future regulation on any individual financial company or on the sector as a whole cannot be predicted. Risks Related to Investing in the Information Technology Sector: Information technology companies may have limited product lines, markets, financial resources or personnel. Information technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Risks Related to Investing in the United States: The Fund may have significant exposure to United States issuers. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. Secondary Market Trading Risk: Investors buying or selling Shares in the secondary market may pay brokerage commissions, which may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares. Although Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. Small- and Mid-Capitalization Companies Risk: Small- and mid-capitalization companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. In addition, these companies are often subject to less analyst coverage and may be in early and less predictable periods of their corporate existences. These companies tend to have smaller revenues, narrower product lines, less management depth and experience, smaller shares of their product or service markets, fewer financial resources and less competitive strength than larger companies. Tracking Error Risk: The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints. Trading Halt Risk: An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell certain securities or financial instruments. In such circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. Valuation Risk: The sales price the Fund could receive for a security may differ from the Fund’s valuation of the security and may differ from the value used by the Underlying Index, particularly for securities that trade in low value or volatile markets or that are valued using a fair value methodology. The value of the securities in the Fund's portfolio may change on days when shareholders will not be able to purchase or sell the Fund's Shares.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Global X Thematic ETF Prospectus \| Global X FinTech ETF Series \| Global X FinTech Thematic ETF
Prospectus:	rr_ProspectusTable
Trading Symbol	dei_TradingSymbol	FINX
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.68%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	none
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.68%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 69
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 218
Global X Thematic ETF Prospectus \| Global X Internet of Things Thematic ETF Series
Prospectus:	rr_ProspectusTable
Risk/Return [Heading]	rr_RiskReturnHeading	Global X Internet of Things Thematic ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Global X Internet of Things Thematic ETF (“Fund”) seeks to provide investment results that correspond generally to the price and yield performance, before fees and expenses, of the INDXX Global Internet of Things Thematic Index (“Underlying Index”).
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares (“Shares”) of the Fund. You will also incur usual and customary brokerage commissions when buying and selling Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling Shares of the Fund in the secondary market.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 69
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 218
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its total assets in the securities of the Underlying Index. The Fund’s 80% investment policy is non-fundamental and requires 60 days’ prior written notice to shareholders before it can be changed. The Underlying Index is designed to provide exposure to exchange-listed companies in developed markets that facilitate the Internet of Things industry, including companies involved in wearable technology, home automation, connected automotive technology, sensors, networking infrastructure/software, smart metering and energy control devices (collectively, “Internet of Things Companies”), as defined by INDXX, the provider of the Underlying Index. The Internet of Things refers to the network of physical objects (devices, vehicles, equipment, homes, buildings) that are connected to the internet through embedded devices and software, which allows these physical objects to collect, analyze and exchange data. The eligible universe of the Underlying Index includes among the most liquid and investable companies in accordance with the standard market capitalization and liquidity criteria associated with developed markets, as defined by the Index Provider. As of July 1, 2016, companies must have a minimum market capitalization of $100 million and a minimum average daily turnover for the last 6 months greater than or equal to $2 million in order to be eligible for inclusion in the Underlying Index. As of July 1, 2016, components from the following countries were eligible for inclusion in the Underlying Index: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, South Korea, the United Kingdom and the United States. From the eligible universe, the Index Provider identifies Internet of Things Companies by applying a proprietary analysis that consists of two primary components: theme identification and company analysis. As part of the theme identification process, the Index Provider analyzes industry reports, investment research and consumer data related to the Internet of Things industry in order to establish the themes that are expected to provide the most exposure to the growth of the Internet of Things industry. As of July 1, 2016, the Index Provider has identified the following four Internet of Things themes: (1) Consumer IoT Technology (2) Equipment, Vehicle, and Infrastructure/Building Technology, (3) Semiconductors and Sensors and (4) Networking Infrastructure/Software (collectively, “Internet of Things Themes”). In order to be included in the Underlying Index, a company must be identified as having significant exposure to one of these Internet of Things Themes. In the second step of the process, companies are analyzed based on two primary criteria: revenue exposure and primary business operations. A company is deemed to have significant exposure to one of the Internet of Things Themes if (i), according to a public filing, it generates a majority of its revenue from one of the Internet of Things Themes, (ii), in the absence of a revenue segment breakdown, it has stated its primary business to be in products and services focused on one of the Internet of Things Themes. In addition, companies with more diversified revenue streams may also be included in the Underlying Index if they meet the following criteria: (1) identified as being critical to the IoT ecosystem due to scale in certain IoT technologies and services, (2) have a distinct business unit(s) focused on IoT products and services and (3) have a core competency that is expected to benefit from increased adoption of IoT. Companies that meet these criteria are eligible for inclusion in the Underlying Index with a weighting cap of 2%. Accordingly, the Fund assets will be concentrated (that is, it will hold 25% or more of its total assets) in companies that provide products and services that provide exposure to the Internet of Things industry. The Underlying Index is weighted according to a modified capitalization weighting methodology and is reconstituted and rebalanced annually. At the annual rebalance, a capping methodology is applied to reduce concentration in individual securities and increase diversification of the Underlying Index. The Underlying Index may include large-, mid- or small-capitalization companies, and components primarily include industrials and information technology companies. The Fund's investment objective and Underlying Index may be changed without shareholder approval. The Underlying Index is sponsored by the Index Provider, which is an organization that is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations (such as tax diversification requirements) that apply to the Fund but not the Underlying Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Underlying Index, before fees and expenses, will exceed 95%. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy. The Fund concentrates its investments (i.e., holds 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of July 1, 2016, the Underlying Index was concentrated in the Information Technology Sector.
Risk [Heading]	rr_RiskHeading	SUMMARY OF PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Fund’s Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI"). ADR/GDR Risk: To the extent the Fund seeks exposure to foreign companies, the Fund’s investments may be in the form of depositary receipts or other securities convertible into securities of foreign issuers, including ADRs and GDRs. While the use of ADRs and GDRs, which are traded on exchanges and represent an ownership in a foreign security, provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in ADRs and GDRs continue to be subject to certain of the risks associated with investing directly in foreign securities. Asset Class Risk: Securities in the Underlying Index or otherwise held in the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes. Authorized Participants Concentration Risk: The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). Only APs who have entered into agreements with the Fund’s distributor may engage in creation or redemption transactions directly with the Fund. To the extent that those APs exit the business or are unable to process creation and/or redemption orders, and no other AP is able to step forward to create or redeem in either of those cases, Shares may trade like closed-end fund shares at a discount to NAV and possibly face trading halts and/or delisting from NASDAQ (the "Exchange"). Concentration Risk: To the extent that the Underlying Index concentrates in the securities of issuers in a particular country, industry, market, asset class, or sector, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a country, industry, market, asset class, or sector, the Fund faces more risks than if it were diversified broadly over numerous countries, industries, markets, asset classes, or sectors. Such risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a particular country, industry, market, asset class, or sector. In addition, at times, such country, industry, market, asset class, or sector may be out of favor and underperform other similar categories or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Information Technology Sector. Currency Risk: The Fund may invest in securities denominated in foreign currencies. Because the Fund's NAV is determined in U.S. dollars, the Fund's NAV could decline if the relevant foreign currencies depreciate against the U.S. dollar. Cyber Security Risk: Failures or breaches of the electronic systems of the Fund, the Fund's adviser, and the Fund's other service providers, market makers, Authorized Participants or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund's business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherit limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund's service providers, market makers, Authorized Participants or issuers of securities in which the Fund invests. Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. Foreign Securities Risk: Investments in the securities of foreign issuers are subject to the risks associated with investing in those foreign markets, such as heightened risks of inflation or nationalization. In addition, securities of foreign issuers may lose value due to political, economic and geographic events affecting a foreign issuer or market. During periods of social, political or economic instability in a country or region, the value of a foreign security traded on U.S. exchanges, nonetheless, could be affected by, among other things, increasing price volatility, illiquidity, or the closure of the primary market on which the security is traded. The Fund may lose value due to political, economic and geographic events affecting a foreign issuer or market. Geographic Risk: A natural disaster could occur in a geographic region in which the Fund invests, which could affect the economy or particular business operations of companies in the specific geographic region, causing an adverse impact on the Fund’s investments in the affected region. International Closed-Market Trading: Because the Fund’s investments may be traded in markets that are closed when the Exchange is open, there are likely to be deviations between the current value of an underlying investment and last sale pricing (i.e., the last quote from its closed foreign market), resulting in premiums or discounts to NAV that may be greater than those experienced by other exchange-traded funds. Investment Risk: An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your Shares, they could be worth less than what you paid for them. Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline. Large-Capitalization Companies Risk: Large-capitalization companies may trail the returns of the overall stock market. Large-capitalization stocks tend to go through cycles of doing better - or worse - than the stock market in general. These periods have, in the past, lasted for as long as several years. Market Risk: Turbulence in the financial markets and reduced liquidity may negatively affect issuers, which could have an adverse effect on the Fund. In addition, there is a risk that policy changes by the U.S. Government, Federal Reserve, or other government actors, which could include increasing interest rates, could cause increased volatility in financial markets and lead to higher levels of Fund redemptions, which could have a negative impact on the Fund. The Fund’s NAV could decline over short periods due to short-term market movements and over longer periods during market downturns. Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds. Operational Risk: The Fund is exposed to operational risk arising from a number of factors, including but not limited to human error, processing and communication errors, errors of the Fund's service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate for those risks that they are intended to address. Passive Investment Risk: The Fund is not actively managed and the Adviser does not attempt to take defensive positions in declining markets. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, it would not necessarily buy or sell a security unless that security is added or removed, respectively, from the Underlying Index, even if that security generally is underperforming. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. Premium/Discount Risk: Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for Shares may result in Shares trading at a significant premium or discount to NAV. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. Risk of Investing in Developed Countries: The Fund’s investment in developed country issuers may subject the Fund to regulatory, political, currency, security, and economic risks specific to developed countries. Developed countries tend to represent a significant portion of the global economy and have generally experienced slower economic growth than some other countries. A majority of developed countries have recently experienced a significant economic slowdown. In addition, developed countries may be impacted by changes to the economic health of certain key trading partners, regulatory burdens, debt burdens and the price or availability of certain commodities. Risks Related to Investing in Internet of Things Companies: Internet of Things companies may have limited product lines, markets, financial resources or personnel. These companies typically face intense competition and potentially rapid product obsolescence. In addition, many Internet of Things companies store sensitive consumer information and could be the target of cybersecurity attacks and other types of theft, which could have a negative impact on these companies. As a result, Internet of Things companies may be adversely impacted by government regulations, and may be subject to additional regulatory oversight with regard to privacy concerns and cybersecurity risk. These companies are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Internet of Things companies could be negatively impacted by disruptions in service caused by hardware or software failure, or by interruptions or delays in service by third-party data center hosting facilities and maintenance providers. Internet of Things companies, especially smaller companies, tend to be more volatile than companies that do not rely heavily on technology. Risks Related to Investing in Taiwan: Investments in Taiwanese issuers may subject the Fund to legal, regulatory, political, currency and economic risks that are specific to Taiwan. Specifically, Taiwan’s geographic proximity and history of political contention with China have resulted in ongoing tensions between the two countries. These tensions may materially affect the Taiwanese economy and its securities market. Taiwan’s economy is export-oriented, so it depends on an open world trade regime and remains vulnerable to fluctuations in the world economy. Risks Related to Investing in the Industrials Sector: Investments in securities of companies in the industrials sector are subject to fluctuations in supply and demand for their specific product or service. The products of manufacturing companies may face product obsolescence due to rapid technological developments. Government regulation, world events and economic conditions affect the performance of companies in the industrials sector. Companies also may be adversely affected by environmental damage and product liability claims. Risks Related to Investing in the Information Technology Sector: Information technology companies may have limited product lines, markets, financial resources or personnel. Information technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Risks Related to Investing in the Netherlands: Investments in Dutch issuers may subject the Fund to legal, regulatory, political, currency, security and economic risk specific to the Netherlands. In addition, because the economy of the Netherlands is export driven, the Netherlands relies heavily on its key trading partners Risks Related to Investing in the United States: The Fund may have significant exposure to United States issuers. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. Secondary Market Trading Risk: Investors buying or selling Shares in the secondary market may pay brokerage commissions, which may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares. Although Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. Small- and Mid-Capitalization Companies Risk: Small- and mid-capitalization companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. In addition, these companies are often subject to less analyst coverage and may be in early and less predictable periods of their corporate existences. These companies tend to have smaller revenues, narrower product lines, less management depth and experience, smaller shares of their product or service markets, fewer financial resources and less competitive strength than larger companies. Tracking Error Risk: The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints. Trading Halt Risk: An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell certain securities or financial instruments. In such circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. Valuation Risk: The sales price the Fund could receive for a security may differ from the Fund’s valuation of the security and may differ from the value used by the Underlying Index, particularly for securities that trade in low value or volatile markets or that are valued using a fair value methodology. The value of the securities in the Fund's portfolio may change on days when shareholders will not be able to purchase or sell the Fund's Shares.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Global X Thematic ETF Prospectus \| Global X Internet of Things Thematic ETF Series \| Global X Internet of Things Thematic ETF
Prospectus:	rr_ProspectusTable
Trading Symbol	dei_TradingSymbol	SNSR
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.68%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	none
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.68%
Global X Thematic ETF Prospectus \| Global X Robotics & Artificial Intelligence Thematic ETF Series
Prospectus:	rr_ProspectusTable
Risk/Return [Heading]	rr_RiskReturnHeading	Global X Robotics & Artificial Intelligence Thematic ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Global X Robotics & Artificial Intelligence Thematic ETF (“Fund”) seeks to provide investment results that correspond generally to the price and yield performance, before fees and expenses, of the INDXX Global Robotics & Artificial Intelligence Thematic Index (“Underlying Index”).
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares (“Shares”) of the Fund. You will also incur usual and customary brokerage commissions when buying and selling Shares.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover:
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example:
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. This example does not take into account customary brokerage commissions that you pay when purchasing or selling Shares of the Fund in the secondary market.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests at least 80% of its total assets in the securities of the Underlying Index. The Fund’s 80% investment policy is non-fundamental and requires 60 days’ prior written notice to shareholders before it can be changed. The Underlying Index is designed to provide exposure to exchange-listed companies in developed markets that are involved in the development of robotics and/or artificial intelligence, including companies involved in developing industrial robots and production systems, automated inventory management, unmanned vehicles, voice/image/text recognition, and medical robots or robotic instruments (collectively, “Robotics & Artificial Intelligence Companies”), as defined by INDXX, the provider of the Underlying Index. The eligible universe of the Underlying Index includes among the most liquid and investable companies in accordance with the standard market capitalization and liquidity criteria associated with developed markets, as defined by the Index Provider. As of July 1, 2016, companies must have a minimum market capitalization of $100 million and a minimum average daily turnover for the last 6 months greater than or equal to $2 million in order to be eligible for inclusion in the Underlying Index. As of July 1, 2016, components from the following countries were eligible for inclusion in the Underlying Index: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, South Korea, the United Kingdom and the United States. From the eligible universe, the Index Provider identifies Robotics & Artificial Intelligence Companies by applying a proprietary analysis that consists of two primary components: theme identification and company analysis. As part of the theme identification process, the Index Provider analyzes industry reports, investment research and consumer data related to the robotics and artificial intelligence industry in order to establish the themes that are expected to provide the most exposure to the growth of the robotics and artificial intelligence industry. As of July 1, 2016, the Index Provider has identified the following four robotics and artificial intelligence themes: (1) Industrial Robotiss and Automation (2) Unmanned Vehicles and Drones, (3) Artificial Intelligence, (4) Non-Industrial Robotics (collectively, “Robotics & Artificial Intelligence Themes”). In order to be included in the Underlying Index, a company must be identified as having significant exposure to one of these Robotics & Artificial Intelligence Themes. In the second step of the process, companies are analyzed based on two primary criteria: revenue exposure and primary business operations. A company is deemed to have significant exposure to one of the Robotics & Artificial Intelligence Themes if (i), according to a public filing, it generates a majority of its revenue from one of the Robotics & Artificial Intelligence Themes, (ii), in the absence of a revenue segment breakdown, it has stated its primary business to be in products and services focused on one of the Robotics & Artificial Intelligence Themes. Accordingly, the Fund assets will be concentrated (that is, it will hold 25% or more of its total assets) in companies that provide exposure to the robotics and artificial intelligence industry. The Underlying Index is weighted according to a modified capitalization weighting methodology and is reconstituted and rebalanced annually. At the annual rebalance, a capping methodology is applied to reduce concentration in individual securities and increase diversification of the Underlying Index. The Underlying Index may include large-, mid- or small-capitalization companies, and components primarily include industrials and information technology companies. The Fund's investment objective and Underlying Index may be changed without shareholder approval. The Underlying Index is sponsored by the Index Provider, which is an organization that is independent of the Fund and Global X Management Company LLC, the investment adviser for the Fund (“Adviser”). The Index Provider determines the relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Adviser uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. The Fund generally will use a replication strategy. A replication strategy is an indexing strategy that involves investing in the securities of the Underlying Index in approximately the same proportions as in the Underlying Index. However, the Fund may utilize a representative sampling strategy with respect to the Underlying Index when a replication strategy might be detrimental or disadvantageous to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to replicate the Underlying Index, in instances in which a security in the Underlying Index becomes temporarily illiquid, unavailable or less liquid, or as a result of legal restrictions or limitations (such as tax diversification requirements) that apply to the Fund but not the Underlying Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Underlying Index, before fees and expenses, will exceed 95%. A correlation percentage of 100% would indicate perfect correlation. If the Fund uses a replication strategy, it can be expected to have greater correlation to the Underlying Index than if it uses a representative sampling strategy. The Fund concentrates its investments (i.e., holds 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of July 1, 2016, the Underlying Index was concentrated in the Industrials Sector and the Information Technology Sector.
Risk [Heading]	rr_RiskHeading	SUMMARY OF PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. There is no guarantee that the Fund will achieve its investment objective. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value ("NAV"), trading price, yield, total return and ability to meet its investment objective, as well as other risks that are described in greater detail in the Additional Information About the Fund’s Strategies and Risks section of the Prospectus and in the Statement of Additional Information ("SAI"). ADR/GDR Risk: To the extent the Fund seeks exposure to foreign companies, the Fund’s investments may be in the form of depositary receipts or other securities convertible into securities of foreign issuers, including ADRs and GDRs. While the use of ADRs and GDRs, which are traded on exchanges and represent an ownership in a foreign security, provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in ADRs and GDRs continue to be subject to certain of the risks associated with investing directly in foreign securities. Asset Class Risk: Securities in the Underlying Index or otherwise held in the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes. Authorized Participants Concentration Risk: The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). Only APs who have entered into agreements with the Fund’s distributor may engage in creation or redemption transactions directly with the Fund. To the extent that those APs exit the business or are unable to process creation and/or redemption orders, and no other AP is able to step forward to create or redeem in either of those cases, Shares may trade like closed-end fund shares at a discount to NAV and possibly face trading halts and/or delisting from NASDAQ (the "Exchange"). Concentration Risk: To the extent that the Underlying Index concentrates in the securities of issuers in a particular country, industry, market, asset class, or sector, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a country, industry, market, asset class, or sector, the Fund faces more risks than if it were diversified broadly over numerous countries, industries, markets, asset classes, or sectors. Such risks, any of which may adversely affect the companies in which the Fund invests, may include, but are not limited to, the following: general economic conditions or cyclical market patterns that could negatively affect supply and demand; competition for resources, adverse labor relations, political or world events; obsolescence of technologies; and increased competition or new product introductions that may affect the profitability or viability of companies in a particular country, industry, market, asset class, or sector. In addition, at times, such country, industry, market, asset class, or sector may be out of favor and underperform other similar categories or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Industrials Sector and Risks Related to Investing in the Information Technology Sector. Currency Risk: The Fund may invest in securities denominated in foreign currencies. Because the Fund's NAV is determined in U.S. dollars, the Fund's NAV could decline if the relevant foreign currencies depreciate against the U.S. dollar. Cyber Security Risk: Failures or breaches of the electronic systems of the Fund, the Fund's adviser, and the Fund's other service providers, market makers, Authorized Participants or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund's business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherit limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund's service providers, market makers, Authorized Participants or issuers of securities in which the Fund invests. Equity Securities Risk: Equity securities are subject to changes in value and their values may be more volatile than other asset classes, as a result of such factors as a company’s business performance, investor perceptions, stock market trends and general economic conditions. Foreign Securities Risk: Investments in the securities of foreign issuers are subject to the risks associated with investing in those foreign markets, such as heightened risks of inflation or nationalization. In addition, securities of foreign issuers may lose value due to political, economic and geographic events affecting a foreign issuer or market. During periods of social, political or economic instability in a country or region, the value of a foreign security traded on U.S. exchanges, nonetheless, could be affected by, among other things, increasing price volatility, illiquidity, or the closure of the primary market on which the security is traded. The Fund may lose value due to political, economic and geographic events affecting a foreign issuer or market. Geographic Risk: A natural disaster could occur in a geographic region in which the Fund invests, which could affect the economy or particular business operations of companies in the specific geographic region, causing an adverse impact on the Fund’s investments in the affected region. International Closed-Market Trading: Because the Fund’s investments may be traded in markets that are closed when the Exchange is open, there are likely to be deviations between the current value of an underlying investment and last sale pricing (i.e., the last quote from its closed foreign market), resulting in premiums or discounts to NAV that may be greater than those experienced by other exchange-traded funds. Investment Risk: An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your Shares, they could be worth less than what you paid for them. Issuer Risk: Fund performance depends on the performance of individual companies in which the Fund invests. Changes to the financial condition of any of those companies may cause the value of their securities to decline. Large-Capitalization Companies Risk: Large-capitalization companies may trail the returns of the overall stock market. Large-capitalization stocks tend to go through cycles of doing better - or worse - than the stock market in general. These periods have, in the past, lasted for as long as several years. Market Risk: Turbulence in the financial markets and reduced liquidity may negatively affect issuers, which could have an adverse effect on the Fund. In addition, there is a risk that policy changes by the U.S. Government, Federal Reserve, or other government actors, which could include increasing interest rates, could cause increased volatility in financial markets and lead to higher levels of Fund redemptions, which could have a negative impact on the Fund. The Fund’s NAV could decline over short periods due to short-term market movements and over longer periods during market downturns. Market Trading Risk: The Fund faces numerous market trading risks, including the potential lack of an active market for Shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors may lead to the Shares trading at a premium or discount to NAV. Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds. Operational Risk: The Fund is exposed to operational risk arising from a number of factors, including but not limited to human error, processing and communication errors, errors of the Fund's service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and the Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate for those risks that they are intended to address. Passive Investment Risk: The Fund is not actively managed and the Adviser does not attempt to take defensive positions in declining markets. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, it would not necessarily buy or sell a security unless that security is added or removed, respectively, from the Underlying Index, even if that security generally is underperforming. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s return to be lower than if the Fund employed an active strategy. Premium/Discount Risk: Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for Shares may result in Shares trading at a significant premium or discount to NAV. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. Risk of Investing in Developed Countries: The Fund’s investment in developed country issuers may subject the Fund to regulatory, political, currency, security, and economic risks specific to developed countries. Developed countries tend to represent a significant portion of the global economy and have generally experienced slower economic growth than some other countries. A majority of developed countries have recently experienced a significant economic slowdown. In addition, developed countries may be impacted by changes to the economic health of certain key trading partners, regulatory burdens, debt burdens and the price or availability of certain commodities. Risks Related to Investing in Denmark: Investments in Danish issuers subject the Fund to legal, regulatory, political, currency, security, and economic risks specific to Denmark. The Danish economy, along with certain other European Union (the “EU”) economies, experienced a significant economic slowdown during the recent financial crisis. Denmark’s economy has also been characterized by slow growth and is facing demographic challenges that could lead to labor supply shortages in the near future. Risks Related to Investing in Germany: The Fund’s investment in German issuers subjects the Fund to legal, regulatory, political, currency, security, and economic risks specific to Germany. The German economy, along with certain other European Union (the “EU”) economies, experienced a significant economic slowdown during the financial crisis that began in 2007. Germany has an export dependent economy and therefore relies heavily on trade with key trading partners, including the Netherlands, China, the United States, France, Italy and other European countries. Germany is dependent on the economies of these other countries and any change in the price or demand for German exports may have an adverse impact on its economy. Risks Related to Investing in Japan: The Japanese economy may be subject to considerable degrees of economic, political and social instability, which could have a negative impact on Japanese securities. Since the year 2000, Japan’s economic growth rate has remained relatively low, and it may remain low in the future. In addition, Japan is subject to the risk of natural disasters, such as earthquakes, volcanic eruptions, typhoons and tsunamis, which could negatively affect the Fund. Risks Related to Investing in Robotics & Artificial Intelligence Companies: Robotics and artificial intelligence companies may have limited product lines, markets, financial resources or personnel. These companies typically face intense competition and potentially rapid product obsolescence. These companies are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. There can be no assurance these companies will be able to successfully protect their intellectual property to prevent the misappropriation of their technology, or that competitors will not develop technology that is substantially similar or superior to such companies’ technology. Robotics and artificial intelligence companies typically engage in significant amounts of spending on research and development, and there is no guarantee that the products or services produced by these companies will be successful. Robotics and artificial intelligence companies, especially smaller companies, tend to be more volatile than companies that do not rely heavily on technology. Risks Related to Investing in Switzerland: Investments in Swiss issuers may subject the Fund to legal, regulatory, political, currency, security, and economic risks specific to Switzerland. International trade is a large component of the Swiss economy and Switzerland depends upon exports to generate economic growth. The Swiss economy relies on certain key trading partners in order to sustain continued economic growth. Switzerland’s economic growth generally mirrors slowdowns and growth spurts experienced in other countries, including the United States and certain Western European countries. Risks Related to Investing in the Industrials Sector: Investments in securities of companies in the industrials sector are subject to fluctuations in supply and demand for their specific product or service. The products of manufacturing companies may face product obsolescence due to rapid technological developments. Government regulation, world events and economic conditions affect the performance of companies in the industrials sector. Companies also may be adversely affected by environmental damage and product liability claims. Risks Related to Investing in the Information Technology Sector: Information technology companies may have limited product lines, markets, financial resources or personnel. Information technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. Risks Related to Investing in the United States: The Fund may have significant exposure to United States issuers. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. Secondary Market Trading Risk: Investors buying or selling Shares in the secondary market may pay brokerage commissions, which may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares. Although Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. Small- and Mid-Capitalization Companies Risk: Small- and mid-capitalization companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. In addition, these companies are often subject to less analyst coverage and may be in early and less predictable periods of their corporate existences. These companies tend to have smaller revenues, narrower product lines, less management depth and experience, smaller shares of their product or service markets, fewer financial resources and less competitive strength than larger companies. Tracking Error Risk: The Fund’s return may not match the return of the Underlying Index for a number of reasons. For example, the Fund incurs operating expenses not applicable to the Underlying Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Underlying Index. In addition, the performance of the Fund and the Underlying Index may vary due to asset valuation differences and differences between the Fund’s portfolio and the Underlying Index resulting from legal restrictions, costs or liquidity constraints. Trading Halt Risk: An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may result in the Fund being unable to buy or sell certain securities or financial instruments. In such circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. Valuation Risk: The sales price the Fund could receive for a security may differ from the Fund’s valuation of the security and may differ from the value used by the Underlying Index, particularly for securities that trade in low value or volatile markets or that are valued using a fair value methodology. The value of the securities in the Fund's portfolio may change on days when shareholders will not be able to purchase or sell the Fund's Shares.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-Diversification Risk: The Fund is classified as a “non-diversified” investment company under the Investment Company Act of 1940 ("1940 Act"). As a result, the Fund is subject to the risk that it will be more volatile than a diversified fund because the Fund may invest its assets in a smaller number of issuers or may invest a larger proportion of its assets in a single issuer. As a result, the gains and losses on a single investment may have a greater impact on the Fund’s NAV and may make the Fund more volatile than more diversified funds.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	The Fund does not have a full calendar year of performance. Thus, no bar chart or Average Annual Total Returns table is included for the Fund.
Global X Thematic ETF Prospectus \| Global X Robotics & Artificial Intelligence Thematic ETF Series \| Global X Robotics & Artificial Intelligence Thematic ETF
Prospectus:	rr_ProspectusTable
Trading Symbol	dei_TradingSymbol	BOTZ
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.68%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	none
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.68%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 69
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 218