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Label Element Value
Prospectus: rr_ProspectusTable  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Nov. 30, 2015
Entity Registrant Name dei_EntityRegistrantName Global X Funds
Central Index Key dei_EntityCentralIndexKey 0001432353
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Apr. 25, 2016
Document Effective Date dei_DocumentEffectiveDate Apr. 25, 2016
Prospectus Date rr_ProspectusDate Apr. 25, 2016
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF  
Prospectus: rr_ProspectusTable  
Risk/Return [Heading] rr_RiskReturnHeading Global X MLP ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Global X MLP ETF (“Fund”) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Solactive MLP Infrastructure 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 commission 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. For the most recent fiscal period, the Fund’s portfolio turnover rate was 47.44% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.44%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You will also incur usual and customary brokerage commission when buying and selling Shares.
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 net assets in the securities of the Underlying Index. Moreover, at least 80% of the Fund’s net assets will be invested in securities that have economic characteristics of the Master Limited Partnership (“MLP”) asset class. The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed.

The Underlying Index is intended to give investors a means of tracking the performance of the energy infrastructure MLP asset class in the United States. As of January 1, 2016, the Underlying Index was composed of 20 MLPs engaged in the transportation, storage, and processing of natural resources ("Midstream MLPs"). The Fund’s investment objective and Underlying Index may be changed without shareholder approval.
The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which 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 that apply to the Fund but not the Underlying Index.
 
Midstream MLPs are publicly traded partnerships engaged in the transportation, storage and processing of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.

To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.
 
MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.
 
Due to the nature of the Fund’s investments, the Fund will not qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended (the “Code”). As a result, the Fund will be taxed as a regular corporation ("C" corporation)for federal income tax purposes.
The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses and taxes, and the performance of the Underlying Index. 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., hold 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 January 1, 2016, the Fund was concentrated in the Energy Sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund concentrates its investments (i.e., hold 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 January 1, 2016, the Fund was concentrated in the Energy 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").
 
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.
 
Cash Transaction Risk: Unlike many exchange-traded funds ("ETFs"), the Fund expects to effect redemptions for cash, rather than in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in a more conventional ETF.
 
Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based 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 in a particular sector or industry; 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 sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.
 
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.

Industry Specific Risks: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.
 
Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.
  
Marine Shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.
 
Investable Universe of Companies Risk: The investable universe of companies in which the 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 overall portfolio holdings and on Fund performance.

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.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.
 
Management Risk: The Fund is subject to the risk that the Adviser’s investment management strategy may cause the Fund to underperform the market or its relevant benchmark or adversely affect the ability of the Fund to achieve its investment objective.

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.
     
MLP Risk: Investments in securities of MLPs involve risks that differ from investments in common stock, including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, and cash flow risks. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.
 
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.

Potential Substantial After-Tax Tracking Error From Index Performance Risk: The Fund will be subject to taxation on its taxable income. The NAV of Shares will also be reduced by the accrual of any deferred tax liabilities. The Underlying Index, however, is calculated without any deductions for taxes. As a result, the Fund’s performance could differ significantly from the Underlying Index even if the pretax performance of the Fund and the performance of the Underlying Index are closely correlated. The performance of the Fund may diverge from that of the Underlying Index.

Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.

Risks Related to the Energy Infrastructure Industry: The Fund invests primarily in energy infrastructure companies. Energy infrastructure companies are subject to risks specific to the industry they serve, including, but not limited to, the following:

• reduced volumes of natural gas or other energy commodities available for transporting, processing or storing;
• new construction and acquisition risk, which can limit growth potential;
• a sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;
• changes in the regulatory environment;
• extreme weather;
• rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and
• threats of attack by terrorists.

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.
 
Tax Risks: Tax risks associated with investments in the Fund include, but are not limited to, the following:
 
Deferred Tax Liability. Cash distributions from an MLP to the Fund that exceed the Fund’s allocable share of such MLP’s net taxable income are considered a tax-deferred return of capital that will reduce the Fund’s adjusted tax basis in the equity securities of the MLP. These reductions in the Fund’s adjusted tax basis in the MLP equity securities will increase the amount of gain (or decrease the amount of loss) recognized by the Fund on a subsequent sale of the securities. The Fund will accrue deferred income taxes for any future tax liability associated with (i) that portion of MLP distributions considered to be a tax-deferred return of capital as well as (ii) capital appreciation of its investments. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes. The Fund’s accrued deferred tax liability will be reflected each day in the Fund’s NAV. Increases in deferred tax liability will decrease the Fund's NAV. Conversely, decreases in deferred tax liability will increase the Fund's NAV. The Fund will rely to some extent on information provided by the MLPs in which it invests, which is not necessarily timely, to estimate deferred tax liability for purposes of financial statement reporting and determining the Fund's NAV. From time to time, the Adviser will modify the estimates or assumptions regarding the Fund’s deferred tax liability as new information becomes available. The Fund’s estimates regarding its deferred tax liability are made in good faith. However, the daily estimate of the Fund’s deferred tax liability used to calculate the Fund’s NAV could vary significantly from the Fund’s actual tax liability. The Fund will generally compute deferred income taxes based on the federal income tax rate applicable to corporations (currently 35%) and an assumed rate attributable to state taxes.

MLP Tax Risk. MLPs do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law, or a change in the underlying business mix of a given MLP, could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction in the value of your investment in the Fund and lower income.

Return of Capital Distributions From the Fund Reduce the Tax Basis of Fund Shares. A portion of the Fund’s distributions are expected to be treated as a return of capital for tax purposes. Return of capital distributions are not taxable income to you, but reduce your tax basis in your Fund Shares. Such a reduction in tax basis will result in larger taxable gains and/or lower tax losses on a subsequent sale of Fund Shares. Shareholders who sell their Shares for less than they bought them may still recognize a gain due to the reduction in tax basis. Shareholders who periodically receive the payment of dividends or other distributions consisting of a return of capital may be under the impression that they are receiving net profits from the Fund when, in fact, they are not. Shareholders should not assume that the source of the distributions is from the net profits of the Fund.
 
Tax Status of the Fund. The Fund is taxed as a regular corporation ("C" corporation) for federal income tax purposes. This differs from most investment companies, which elect to be treated as regulated investment companies under the Code in order to avoid paying entity level income taxes. Under current law, the Fund is not eligible to elect treatment as a regulated investment company due to its investments primarily in MLPs invested in energy assets. As a result, the Fund will be obligated to pay applicable federal and state corporate income taxes on its taxable income as opposed to most investment companies which are not so obligated. As discussed below, the Fund expects that a portion of the distributions it receives from MLPs may be treated as a tax-deferred return of capital, thus reducing the Fund’s current tax liability. However, the amount of taxes currently paid by the Fund will vary depending on the amount of income and gains derived from investments and/or sales of MLP interests and such taxes may reduce your return from an investment in the Fund.

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.
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 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 bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future. Updated performance information is available online at www.globalxfunds.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.globalxfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (Years Ended December 31)
Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock
Best Quarter:
03/31/13
12.30%
Worst Quarter:
09/30/15
-22.32%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2013
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.30%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.32%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the Periods Ended December 31, 2015) 
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
1     After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

2    Hybrid Index performance reflects the performance of the Solactive MLP Composite Index.
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF | Solactive MLP Composite Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel Solactive MLP Composite Index (net)
1 Year rr_AverageAnnualReturnYear01 (33.07%) [1]
Since Inception rr_AverageAnnualReturnSinceInception (1.34%) [1]
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF | S&P 500 Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel S&P 500 Index
1 Year rr_AverageAnnualReturnYear01 1.38%
Since Inception rr_AverageAnnualReturnSinceInception 13.48%
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF | Global X MLP ETF  
Prospectus: rr_ProspectusTable  
Trading Symbol dei_TradingSymbol MLPA
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.45%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [2]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 567
Annual Return 2013 rr_AnnualReturn2013 17.82%
Annual Return 2014 rr_AnnualReturn2014 4.15%
Annual Return 2015 rr_AnnualReturn2015 (30.13%)
Label rr_AverageAnnualReturnLabel Return before taxes
1 Year rr_AverageAnnualReturnYear01 (30.13%)
Since Inception rr_AverageAnnualReturnSinceInception (3.70%)
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 18, 2012
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF | Global X MLP ETF | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions1
1 Year rr_AverageAnnualReturnYear01 (30.13%) [3]
Since Inception rr_AverageAnnualReturnSinceInception (4.78%) [3]
Global X MLP ETF (Prospectus Summary) | Global X MLP ETF | Global X MLP ETF | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund Shares1
1 Year rr_AverageAnnualReturnYear01 (20.02%) [3]
Since Inception rr_AverageAnnualReturnSinceInception (4.20%) [3]
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF  
Prospectus: rr_ProspectusTable  
Risk/Return [Heading] rr_RiskReturnHeading Global X Junior MLP ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Global X Junior MLP ETF (“Fund”) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Solactive Junior MLP Composite 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 commission 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. For the most recent fiscal period, the Fund’s portfolio turnover rate was 57.32% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 57.32%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You will also incur usual and customary brokerage commission when buying and selling Shares.
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 net assets in the securities of the Underlying Index.  Moreover, at least 80% of the Fund’s net assets will be invested in securities that have economic characteristics of the small-capitalization ("small-cap") segment of the Master Limited Partnership (“MLP”) asset class. For purposes of this policy, the Fund considers small-cap companies to be those companies included in, or similar in size to those included in, the Solactive Junior MLP Composite Index, as of the latest reconstitution date, at the time of purchase.  As of January 1, 2016, the market capitalization of the Underlying Index was between $100 million and $10 billion. The Fund’s capitalization range will change over time.  The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed.

The Underlying Index is intended to give investors a means of tracking the overall performance of the small-capitalization segment of the MLP asset class in the United States. As of January 1, 2016, the Underlying Index was composed of 30 MLPs engaged in the transportation, storage, processing, refining, marketing, exploration, production, and mining of natural resources. The Fund’s investment objective and Underlying Index may be changed without shareholder approval.
 
The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which 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 that apply to the Fund but not the Underlying Index.
 
MLPs are publicly traded partnerships engaged in the transportation, storage, processing, refining, marketing, exploration, production, and mining of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.
 
To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.
 
MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.
 
Due to the nature of the Fund’s investments, the Fund will not qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended (the “Code”). As a result, the Fund will be taxed as a regular corporation ("C" corporation) for federal income tax purposes.
 
The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses and taxes, and the performance of the Underlying Index. 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., hold 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 January 1, 2016, the Fund was concentrated in the Energy Sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund concentrates its investments (i.e., hold 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 January 1, 2016, the Fund was concentrated in the Energy 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").
 
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.
 
Cash Transaction Risk: Unlike many exchange-traded funds ("ETFs"), the Fund expects to effect redemptions for cash, rather than in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in a more conventional ETF.
 
Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based 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 in a particular sector or industry; 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 sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.
 
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.
 
Industry Specific Risk: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.
 
Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.
 
Exploration and Production. Exploration and production MLPs produce energy resources, including natural gas and crude oil. Exploration and production MLPs that own oil and gas reserves are particularly vulnerable to declines in the demand for and prices of crude oil and natural gas. Substantial downward adjustments in reserve estimates could have a material adverse effect on the value of such reserves and the financial condition of an MLP. Exploration and production MLPs seek to reduce cash flow volatility associated with commodity prices by executing multi-year hedging strategies that fix the price of gas and oil produced. There can be no assurance that the hedging strategies currently employed by these MLPs are currently effective or will remain effective.
 
Marine Shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.
 
Propane. Propane MLPs are distributors or propane to homeowners for space and water heating. MLPs with propane assets are subject to earnings variability based upon weather conditions in the markets they serve, fluctuating commodity prices, customer conservation and increased use of alternative fuels, increased governmental or environmental regulation, and accidents or catastrophic events, among others.

Natural Resource. MLPs with coal, timber, fertilizer and other mineral assets are subject to supply and demand fluctuations in the markets they serve, which will be impacted by a wide range of domestic and foreign factors including fluctuating commodity prices, the level of their customers’ coal stockpiles, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, declines in production, mining accidents or catastrophic events, health claims and economic conditions, among others.

Investable Universe of Companies Risk: The investable universe of companies in which the 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 overall portfolio holdings and on Fund performance.

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.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.
 
Market 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.
 
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. 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 NAV, the shareholder may sustain losses.
 
MLP Risk: Investments in securities of MLPs involve risks that differ from investments in common stock, including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, and cash flow risks. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.
 
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.
 
Potential Substantial After-Tax Tracking Error From Index Performance Risk: The Fund will be subject to taxation on its taxable income. The NAV of Shares will also be reduced by the accrual of any deferred tax liabilities. The Underlying Index, however, is calculated without any deductions for taxes. As a result, the Fund’s performance could differ significantly from the Underlying Index even if the pretax performance of the Fund and the performance of the Underlying Index are closely correlated. The performance of the Fund may diverge from that of the Underlying Index.
 
Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.

Risks Related to the Energy Infrastructure Industry: The Fund invests primarily in energy infrastructure companies. Energy infrastructure companies are subject to risks specific to the industry they serve, including, but not limited to, the following:
 
• reduced volumes of natural gas or other energy commodities available for transporting, processing or storing;
• new construction and acquisition risk, which can limit growth potential;
• a sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;
• changes in the regulatory environment;
• extreme weather;
• rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and
• threats of attack by terrorists.
 
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.
 
Tax Risks: Tax risks associated with investments in the Fund include, but are not limited to, the following:
 
Deferred Tax Liability. Cash distributions from an MLP to the Fund that exceed the Fund’s allocable share of such MLP’s net taxable income are considered a tax-deferred return of capital that will reduce the Fund’s adjusted tax basis in the equity securities of the MLP. These reductions in the Fund’s adjusted tax basis in the MLP equity securities will increase the amount of gain (or decrease the amount of loss) recognized by the Fund on a subsequent sale of the securities. The Fund will accrue deferred income taxes for any future tax liability associated with (i) that portion of MLP distributions considered to be a tax-deferred return of capital as well as (ii) capital appreciation of its investments. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes. The Fund’s accrued deferred tax liability will be reflected each day in the Fund’s NAV. Increases in deferred tax liability will decrease the Fund's NAV. Conversely, decreases in deferred tax liability will increase the Fund's NAV. The Fund will rely to some extent on information provided by the MLPs in which it invests, which is not necessarily timely, to estimate deferred tax liability for purposes of financial statement reporting and determining the Fund's NAV. From time to time, the Adviser will modify the estimates or assumptions regarding the Fund’s deferred tax liability as new information becomes available. The Fund’s estimates regarding its deferred tax liability are made in good faith. However, the daily estimate of the Fund’s deferred tax liability used to calculate the Fund’s NAV could vary significantly from the Fund’s actual tax liability. The Fund will generally compute deferred income taxes based on the federal income tax rate applicable to corporations (currently 35%) and an assumed rate attributable to state taxes.

MLP Tax Risk. MLPs do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law, or a change in the underlying business mix of a given MLP, could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction in the value of your investment in the Fund and lower income.
 
Return of Capital Distributions From the Fund Reduce the Tax Basis of Fund Shares. A portion of the Fund’s distributions are expected to be treated as a return of capital for tax purposes. Return of capital distributions are not taxable income to you, but reduce your tax basis in your Fund Shares. Such a reduction in tax basis will result in larger taxable gains and/or lower tax losses on a subsequent sale of Fund Shares. Shareholders who sell their Shares for less than they bought them may still recognize a gain due to the reduction in tax basis. Shareholders who periodically receive the payment of dividends or other distributions consisting of a return of capital may be under the impression that they are receiving net profits from the Fund when, in fact, they are not. Shareholders should not assume that the source of the distributions is from the net profits of the Fund.
 
Tax Status of the Fund. The Fund is taxed as a regular corporation ("C" corporation) for federal income tax purposes. This differs from most investment companies, which elect to be treated as regulated investment companies under the Code in order to avoid paying entity level income taxes. Under current law, the Fund is not eligible to elect treatment as a regulated investment company due to its investments primarily in MLPs invested in energy assets. As a result, the Fund will be obligated to pay applicable federal and state corporate income taxes on its taxable income as opposed to most investment companies which are not so obligated. As discussed below, the Fund expects that a portion of the distributions it receives from MLPs may be treated as a tax-deferred return of capital, thus reducing the Fund’s current tax liability. However, the amount of taxes currently paid by the Fund will vary depending on the amount of income and gains derived from investments and/or sales of MLP interests and such taxes may reduce your return from an investment in the Fund.
 
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.
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 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 bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future. Updated performance information is available online at www.globalxfunds.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.globalxfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (Years Ended December 31)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:
06/30/14
11.27%
Worst Quarter:
09/30/15
-29.26%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2014
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.27%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (29.26%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the Periods Ended December 31, 2015)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF | Solactive Junior MLP Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel Solactive Junior MLP Composite Index (net)
1 Year rr_AverageAnnualReturnYear01 (40.32%)
Since Inception rr_AverageAnnualReturnSinceInception (12.42%)
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF | S&P 500 Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel S&P 500 Index
1 Year rr_AverageAnnualReturnYear01 1.38%
Since Inception rr_AverageAnnualReturnSinceInception 14.12%
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF | Global X Junior MLP ETF  
Prospectus: rr_ProspectusTable  
Trading Symbol dei_TradingSymbol MLPJ
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.75%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.22% [4]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.97%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 99
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 309
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 536
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,190
Annual Return 2014 rr_AnnualReturn2014 (8.13%)
Annual Return 2015 rr_AnnualReturn2015 (38.03%)
Label rr_AverageAnnualReturnLabel Return before taxes
1 Year rr_AverageAnnualReturnYear01 (38.03%)
Since Inception rr_AverageAnnualReturnSinceInception (13.53%)
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 14, 2013
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF | Global X Junior MLP ETF | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions1
1 Year rr_AverageAnnualReturnYear01 (39.06%) [5]
Since Inception rr_AverageAnnualReturnSinceInception (15.61%) [5]
Global X Junior MLP ETF (Prospectus Summary) | Global X Junior MLP ETF | Global X Junior MLP ETF | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund Shares1
1 Year rr_AverageAnnualReturnYear01 (23.29%) [5]
Since Inception rr_AverageAnnualReturnSinceInception (10.75%) [5]
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF  
Prospectus: rr_ProspectusTable  
Risk/Return [Heading] rr_RiskReturnHeading Global X MLP & Energy Infrastructure ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Global X MLP & Energy Infrastructure ETF (“Fund”) seeks to provide investment results that correspond generally to the price and yield performance, before fees and expenses, of the Solactive MLP & Energy Infrastructure 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 commission 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. For the most recent fiscal period, the Fund’s portfolio turnover rate was 33.36% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 33.36%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You will also incur usual and customary brokerage commission when buying and selling Shares.
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 also invests at least 80% of its total assets in securities of master limited partnerships (“MLPs”) and energy infrastructure corporations. The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed. The Fund may lend securities representing up to one-third of the value of the Fund's total assets (including the value of the collateral received).
 
The Underlying Index tracks the performance of MLPs and energy infrastructure corporations. Energy infrastructure MLPs and corporations principally own and operate assets used in energy logistics, including, but not limited to, pipelines, storage facilities and other assets used in transporting, storing, gathering, and processing natural gas, natural gas liquids, crude oil or refined products. The Underlying Index limits its exposure to partnerships in order to comply with applicable tax diversification rules. Securities must be publicly traded in the United States. As of January 1, 2016, the Underlying Index was composed of 38 securities. The Fund’s investment objective and Underlying Index may be changed without shareholder approval.
 
The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which 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 will use 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.

MLPs are publicly traded partnerships engaged in the transportation, storage, processing, refining, marketing, exploration, production, and mining of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.
 
To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.
 
MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.

The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses and taxes, and the performance of the Underlying Index. 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 will concentrate its investments (i.e., hold 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 January 1, 2016, the Fund was concentrated in the Energy Sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund will concentrate its investments (i.e., hold 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 January 1, 2016, the Fund was concentrated in the Energy 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").

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.
 
Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based 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 in a particular sector or industry; 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 sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.
  
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.

Industry Specific Risk: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.
 
Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.
  
Marine shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.
 
Investable Universe of Companies Risk: The investable universe of companies in which the 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 overall portfolio holdings and on Fund performance.

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.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.

Management Risk: The Fund is subject to the risk that the Adviser’s investment management strategy may cause the Fund to underperform the market or its relevant benchmark or adversely affect the ability of the Fund to achieve its investment objective.

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.

MLP Risk: Investments in securities of MLPs involve risks that differ from investments in common stock, including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, and cash flow risks. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.

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.
  
Potential Substantial After-Tax Tracking Error From Index Performance Risk: The Fund will be subject to taxation on its taxable income. The NAV of Shares will also be reduced by the accrual of any deferred tax liabilities. The Underlying Index, however, is calculated without any deductions for taxes. As a result, the Fund’s performance could differ significantly from the Underlying Index even if the pretax performance of the Fund and the performance of the Underlying Index are closely correlated. The performance of the Fund may diverge from that of the Underlying Index.

Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.

Risks Related to the Energy Infrastructure Industry: The Fund invests primarily in energy infrastructure companies. Energy infrastructure companies are subject to risks specific to the industry they serve, including, but not limited to, the following:
 
• reduced volumes of natural gas or other energy commodities available for transporting, processing or storing;
• new construction and acquisition risk, which can limit growth potential;
• a sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;
• changes in the regulatory environment;
• extreme weather;
• rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and
• threats of attack by terrorists.

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.
Securities Lending Risk: Securities lending involves a risk of loss because the borrower may fail to return the securities in a timely manner or at all. If the Fund is not able to recover the securities loaned, it may sell the collateral and purchase a replacement security in the market. Lending securities entails a risk of loss to the Fund if and to the extent that the market value of the loaned securities increases and the collateral is not increased accordingly. Additionally, the Fund will bear any loss on the investment of cash collateral it receives. These events could also trigger adverse tax consequences for the Fund. As securities on loan may not be voted by the Fund, there is a risk that the Fund may not be able to recall the securities in sufficient time to vote on material proxy matters.

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.
 
Tax Risks: Tax risks associated with investments in the Fund include, but are not limited to, the following:

MLP Tax Risk. MLPs do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law, or a change in the underlying business mix of a given MLP, could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction in the value of your investment in the Fund and lower income.

Return of Capital Distributions From the Fund Reduce the Tax Basis of Fund Shares. A portion of the Fund’s distributions are expected to be treated as a return of capital for tax purposes. Return of capital distributions are not taxable income to you, but reduce your tax basis in your Fund Shares. Such a reduction in tax basis will result in larger taxable gains and/or lower tax losses on a subsequent sale of Fund Shares. Shareholders who sell their Shares for less than they bought them may still recognize a gain due to the reduction in tax basis. Shareholders who periodically receive the payment of dividends or other distributions consisting of a return of capital may be under the impression that they are receiving net profits from the Fund when, in fact, they are not. Shareholders should not assume that the source of the distributions is from the net profits of the Fund.

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.
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 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 bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future. Updated performance information is available online at www.globalxfunds.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table that follow show how the Fund performed on a calendar year basis and provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing the Fund's average annual total returns for the indicated periods compared with the Fund's benchmark index and a broad measure of market performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.globalxfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns (Years Ended December 31)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:
06/30/14
18.34%
Worst Quarter:
09/30/15
-23.51%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2014
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.34%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.51%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the Periods Ended December 31, 2015)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF | MLP & Energy Infrastructure Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel MLP & Energy Infrastructure Index (net)
1 Year rr_AverageAnnualReturnYear01 (34.68%)
Since Inception rr_AverageAnnualReturnSinceInception (7.29%)
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF | S&P 500 Index  
Prospectus: rr_ProspectusTable  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (Index returns do not reflect deductions for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel S&P 500 Index
1 Year rr_AverageAnnualReturnYear01 1.38%
Since Inception rr_AverageAnnualReturnSinceInception 10.34%
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF | Global X MLP & Energy Infrastructure ETF  
Prospectus: rr_ProspectusTable  
Trading Symbol dei_TradingSymbol MLPX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.45%
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 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 567
Annual Return 2014 rr_AnnualReturn2014 16.53%
Annual Return 2015 rr_AnnualReturn2015 (35.23%)
Label rr_AverageAnnualReturnLabel Return before taxes
1 Year rr_AverageAnnualReturnYear01 (35.23%)
Since Inception rr_AverageAnnualReturnSinceInception (7.85%)
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 06, 2013
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF | Global X MLP & Energy Infrastructure ETF | After Taxes on Distributions  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions1
1 Year rr_AverageAnnualReturnYear01 (36.18%) [6]
Since Inception rr_AverageAnnualReturnSinceInception (8.65%) [6]
Global X MLP & Energy Infrastructure ETF (Prospectus Summary) | Global X MLP & Energy Infrastructure ETF | Global X MLP & Energy Infrastructure ETF | After Taxes on Distributions and Sales  
Prospectus: rr_ProspectusTable  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund Shares1
1 Year rr_AverageAnnualReturnYear01 (19.73%) [6]
Since Inception rr_AverageAnnualReturnSinceInception (6.04%) [6]
Global X MLP Natural Gas ETF (Prospectus Summary) | Global X MLP Natural Gas ETF  
Prospectus: rr_ProspectusTable  
Risk/Return [Heading] rr_RiskReturnHeading Global X MLP Natural Gas ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Global X MLP Natural Gas ETF (“Fund”) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Solactive MLP Natural Gas 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 commission 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. The Fund had not yet commenced investment operations as of the most recent fiscal year end. Thus, no portfolio turnover rate is provided for the Fund.
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You will also incur usual and customary brokerage commission when buying and selling Shares.
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 net assets in the securities of the Underlying Index. Moreover, at least 80% of the Fund’s net assets will be invested in securities that have economic characteristics of the Master Limited Partnership (“MLP”) natural gas asset class. The Fund’s 80% investment policies are non-fundamental and require 60 days’ prior written notice to shareholders before they can be changed.
 
The Index is intended to give investors a means of tracking the performance of the United States MLP natural gas asset class in the United States. As of January 1, 2016, the Underlying Index was composed of 25 MLPs engaged in the transportation, storage, processing, marketing, exploration and production of natural gas. The Fund’s investment objective and Underlying Index may be changed without shareholder approval.
 
The Underlying Index is sponsored by Solactive AG, the provider of the Underlying Index ("Index Provider"), which 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 uses 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 that apply to the Fund but not the Underlying Index.
 
MLPs are publicly traded partnerships engaged in the transportation, storage, processing, refining, marketing, exploration, production, and mining of natural resources. By confining their operations to these specific activities, their interests, or units, are able to trade on public securities exchanges exactly like the shares of a corporation, without entity level taxation.
 
To qualify as a MLP and not to be taxed as a corporation, a partnership must receive at least 90% of its income from qualifying sources as set forth in Section 7704(d) of the Internal Revenue Code of 1986, as amended (the “Code”). These qualifying sources include interest, dividends, real estate rents, gain from the sale or disposition of real property, income and gain from mineral or natural resources activities, income and gain from the transportation or storage of certain fuels, gain from the sale or disposition of a capital asset held for the production of income described in the foregoing, and, in certain circumstances, income and gain from commodities or futures, forwards and options with respect to commodities.
 
MLPs generally have two classes of owners, the general partner and limited partners. The general partner of an MLP is typically owned by a major energy company, an investment fund, or the direct management of the MLP, or is an entity owned by one or more of such parties. The general partner may be structured as a private or publicly traded corporation or other entity. The general partner typically controls the operations and management of the MLP through an up to 2% equity interest in the MLP plus, in many cases, ownership of common units and subordinated units. Limited partners typically own the remainder of the partnership, through ownership of common units, and have a limited role in the partnership’s operations and management. MLPs are typically structured such that common units and general partner interests have first priority to receive quarterly cash distributions up to an established minimum amount (“minimum quarterly distributions” or “MQD”). Common and general partner interests also accrue arrearages in distributions to the extent the MQD is not paid. Once common and general partner interests have been paid, subordinated units receive distributions of up to the MQD; however, subordinated units do not accrue arrearages. Distributable cash in excess of the MQD is paid to both common and subordinated units and is distributed to both common and subordinated units generally on a pro rata basis. The general partner is also eligible to receive incentive distributions if the general partner operates the business in a manner which results in distributions paid per common unit surpassing specified target levels. As the general partner increases cash distributions to the limited partners, the general partner receives an increasingly higher percentage of the incremental cash distributions.
 
Due to the nature of the Fund’s investments, the Fund will not qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended (the “Code”). As a result, the Fund will be taxed as a regular corporation ("C" corporation)for federal income tax purposes.
 
The Adviser seeks a correlation over time of 95% or better between the Fund’s performance, before fund fees, expenses, and taxes, and the performance of the Underlying Index. 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., hold 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 January 1, 2016, the Fund was concentrated in the Energy Sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund concentrates its investments (i.e., hold 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 January 1, 2016, the Fund was concentrated in the Energy 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").
 
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.
 
Cash Transaction Risk: Unlike many exchange-traded funds ("ETFs"), the Fund expects to effect redemptions for cash, rather than in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in a more conventional ETF.
 
Concentration Risk: Because the Fund's investments are concentrated in the energy sector, the Fund will be susceptible to loss due to adverse occurrences affecting this sector or industry. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based 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 in a particular sector or industry; 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 sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole. For additional details on these risks, please see Risks Related to Investing in the Energy Sector.
 
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.
 
Industry Specific Risk: MLPs operating in the energy sector are also subject to risks specific to the industry they serve.
 
Midstream. Midstream MLPs that provide crude oil, refined product and natural gas services are subject to supply and demand fluctuations in the markets they serve, which may be impacted by a wide range of factors, including fluctuating commodity prices, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, rising interest rates, declines in domestic or foreign production, accidents or catastrophic events, increasing operating expenses and economic conditions, among others.
 
Exploration and production. Exploration and production MLPs produce energy resources, including natural gas and crude oil. Exploration and production MLPs that own oil and gas reserves are particularly vulnerable to declines in the demand for and prices of crude oil and natural gas. Substantial downward adjustments in reserve estimates could have a material adverse effect on the value of such reserves and the financial condition of an MLP. Exploration and production MLPs seek to reduce cash flow volatility associated with commodity prices by executing multi-year hedging strategies that fix the price of gas and oil produced. There can be no assurance that the hedging strategies currently employed by these MLPs are currently effective or will remain effective.

Marine shipping. Marine shipping MLPs are primarily marine transporters of natural gas, crude oil or refined petroleum products. Marine shipping companies are exposed to many of the same risks as other energy companies. The highly cyclical nature of the marine transportation industry may lead to volatile changes in charter rates and vessel values, which may adversely affect the revenues, profitability and cash flows of MLPs with marine transportation assets.
 
Propane. Propane MLPs are distributors or propane to homeowners for space and water heating. MLPs with propane assets are subject to earnings variability based upon weather conditions in the markets they serve, fluctuating commodity prices, customer conservation and increased use of alternative fuels, increased governmental or environmental regulation, and accidents or catastrophic events, among others.

Natural Resource. MLPs with coal, timber, fertilizer and other mineral assets are subject to supply and demand fluctuations in the markets they serve, which will be impacted by a wide range of domestic and foreign factors including fluctuating commodity prices, the level of their customers’ coal stockpiles, weather, increased conservation or use of alternative fuel sources, increased governmental or environmental regulation, depletion, declines in production, mining accidents or catastrophic events, health claims and economic conditions, among others.

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.
 
Investable Universe of Companies Risk: The investable universe of companies in which the 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 overall portfolio holdings and on Fund performance.

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.

Liquidity Risk: Certain securities of MLPs may trade less frequently than those of larger companies due to their smaller capitalizations.
 
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.
 
MLP Risk: Investments in securities of MLPs involve risks that differ from investments in common stock, including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, and cash flow risks. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.
 
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.
 
Potential Substantial After-Tax Tracking Error From Index Performance Risk: The Fund will be subject to taxation on its taxable income. The NAV of Shares will also be reduced by the accrual of any deferred tax liabilities. The Underlying Index, however, is calculated without any deductions for taxes. As a result, the Fund’s performance could differ significantly from the Underlying Index even if the pretax performance of the Fund and the performance of the Underlying Index are closely correlated. The performance of the Fund may diverge from that of the Underlying Index.
 
Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.
 
Risks Related to the Energy Infrastructure Industry: The Fund invests primarily in energy infrastructure companies. Energy infrastructure companies are subject to risks specific to the industry they serve, including, but not limited to, the following:
 
• reduced volumes of natural gas or other energy commodities available for transporting, processing or storing;
• new construction and acquisition risk, which can limit growth potential;
• a sustained reduced demand for crude oil, natural gas and refined petroleum products resulting from a recession or an increase in market price or higher taxes;
• changes in the regulatory environment;
• extreme weather;
• rising interest rates, which could result in a higher cost of capital and drive investors into other investment opportunities; and
• threats of attack by terrorists.

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.
 
Tax Risks: Tax risks associated with investments in the Fund include, but are not limited to, the following:
 
Deferred Tax Liability. Cash distributions from an MLP to the Fund that exceed the Fund’s allocable share of such MLP’s net taxable income are considered a tax-deferred return of capital that will reduce the Fund’s adjusted tax basis in the equity securities of the MLP. These reductions in the Fund’s adjusted tax basis in the MLP equity securities will increase the amount of gain (or decrease the amount of loss) recognized by the Fund on a subsequent sale of the securities. The Fund will accrue deferred income taxes for any future tax liability associated with (i) that portion of MLP distributions considered to be a tax-deferred return of capital as well as (ii) capital appreciation of its investments. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes. The Fund’s accrued deferred tax liability will be reflected each day in the Fund’s NAV. Increases in deferred tax liability will decrease the Fund's NAV. Conversely, decreases in deferred tax liability will increase the Fund's NAV. The Fund will rely to some extent on information provided by the MLPs in which it invests, which is not necessarily timely, to estimate deferred tax liability for purposes of financial statement reporting and determining the Fund's NAV. From time to time, the Adviser will modify the estimates or assumptions regarding the Fund’s deferred tax liability as new information becomes available. The Fund’s estimates regarding its deferred tax liability are made in good faith. However, the daily estimate of the Fund’s deferred tax liability used to calculate the Fund’s NAV could vary significantly from the Fund’s actual tax liability. The Fund will generally compute deferred income taxes based on the federal income tax rate applicable to corporations (currently 35%) and an assumed rate attributable to state taxes.
 
MLP Tax Risk. MLPs do not pay U.S. federal income tax at the partnership level. Rather, each partner is allocated a share of the partnership’s income, gains, losses, deductions and expenses. A change in current tax law, or a change in the underlying business mix of a given MLP, could result in an MLP being treated as a corporation for U.S. federal income tax purposes, which would result in such MLP being required to pay U.S. federal income tax on its taxable income. The classification of an MLP as a corporation for U.S. federal income tax purposes would have the effect of reducing the amount of cash available for distribution by the MLP. Thus, if any of the MLPs owned by the Fund were treated as corporations for U.S. federal income tax purposes, it could result in a reduction in the value of your investment in the Fund and lower income.
 
Return of Capital Distributions From the Fund Reduce the Tax Basis of Fund Shares. A portion of the Fund’s distributions are expected to be treated as a return of capital for tax purposes. Return of capital distributions are not taxable income to you, but reduce your tax basis in your Fund Shares. Such a reduction in tax basis will result in larger taxable gains and/or lower tax losses on a subsequent sale of Fund Shares. Shareholders who sell their Shares for less than they bought them may still recognize a gain due to the reduction in tax basis. Shareholders who periodically receive the payment of dividends or other distributions consisting of a return of capital may be under the impression that they are receiving net profits from the Fund when, in fact, they are not. Shareholders should not assume that the source of the distributions is from the net profits of the Fund.

Tax Status of the Fund. The Fund is taxed as a regular corporation ("C" corporation) for federal income tax purposes. This differs from most investment companies, which elect to be treated as regulated investment companies under the Code in order to avoid paying entity level income taxes. Under current law, the Fund is not eligible to elect treatment as a regulated investment company due to its investments primarily in MLPs invested in energy assets. As a result, the Fund will be obligated to pay applicable federal and state corporate income taxes on its taxable income as opposed to most investment companies which are not so obligated. As discussed below, the Fund expects that a portion of the distributions it receives from MLPs may be treated as a tax-deferred return of capital, thus reducing the Fund’s current tax liability. However, the amount of taxes currently paid by the Fund will vary depending on the amount of income and gains derived from investments and/or sales of MLP interests and such taxes may reduce your return from an investment in the Fund. Upon the sale of an MLP security, the Fund may be liable for previously deferred taxes even if the MLP security is sold at a loss.
 
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.
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 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 has not commenced operations as of the date of this prospectus. 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 has not commenced operations as of the date of this prospectus. Thus, no bar chart or average annual total returns table is included for the Fund.
Global X MLP Natural Gas ETF (Prospectus Summary) | Global X MLP Natural Gas ETF | Global X MLP Natural Gas ETF  
Prospectus: rr_ProspectusTable  
Trading Symbol dei_TradingSymbol MLPZ
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.58%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [7],[8]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.58%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 59
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 186
Global X SuperDividend Alternatives ETF (Prospectus Summary) | Global X SuperDividend Alternatives ETF  
Prospectus: rr_ProspectusTable  
Risk/Return [Heading] rr_RiskReturnHeading Global X SuperDividend® Alternatives ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Global X SuperDividend® Alternatives ETF (“Fund”) seeks to track, before fees and expenses, the price and yield performance of the Indxx SuperDividend® Alternatives 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 commission 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. From the Fund's commencement of operations on July 13, 2015 to the end of the most recent fiscal period, the Fund’s portfolio turnover rate was 21.50% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 21.50%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You will also incur usual and customary brokerage commission when buying and selling Shares.
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 Underlying Index is comprised of securities that rank among the highest dividend yielding securities in each eligible category of alternative income investments, at the time of reconstitution of the Underlying Index, as defined by the Index Provider (which is defined below). Alternative income investments that are eligible for inclusion in the Underlying Index fall into one of four classes: Master Limited Partnerships (“MLPs”) and Infrastructure, Real Estate, Institutional Managers, and Fixed Income and Derivative Strategies. The MLPs and Infrastructure categories primarily consist of units of MLPs and shares of infrastructure companies. The Real Estate category provides exposure to global Real Estate Investment Trusts (“REITs”), and gains this exposure through the Global X SuperDividend® REIT ETF. The Institutional Managers category primarily consists of shares of Business Development Companies (“BDCs”) and listed private equity firms. The Fixed Income and Derivative Strategies category includes exposure to emerging market debt, mortgage and asset-backed securities, and option-writing primarily through the purchase of publicly traded closed end funds (“CEFs”). Each of the Underlying Index components are selected from a universe of securities that are publicly traded in the U.S. The Underlying Index assigns weights to each of the four categories in a method that seeks to equalize the volatility contribution of each category, which assigns less weight to higher volatility categories and more weight to lower volatility categories. The Underlying Index is reconstituted annually, but may rebalance quarterly if any one category deviates more than 3% from its target weight. The Fund's investment objective and Underlying Index may be changed without shareholder approval. The Underlying Index is sponsored by an organization (“Index Provider”) 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 Fund’s Index Provider is Indxx, LLC.

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 “beat” 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 to shareholders, such as when there are practical difficulties or substantial costs involved in compiling a portfolio of equity securities to follow 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., hold 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 the date of this Prospectus, the Fund was not concentrated in a particular sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund concentrates its investments (i.e., hold 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 the date of this Prospectus, the Fund was not concentrated in a particular 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. 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").
 
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.

BDC Risk: BDCs may carry risks similar to those of a private equity or venture capital fund. BDC company securities are not redeemable at the option of the shareholder and they may trade in the market at a discount to their net asset value. BDCs usually trade at a discount to their net asset value because they invest in unlisted securities and have limited access to capital markets. The Fund will indirectly bear its pro rata share of the fees and expenses incurred by an BDC it invests in, including advisory fees.

Concentration Risk: Because the Fund's investments may be concentrated in a particular sector or industry, the Fund will be susceptible to loss due to adverse occurrences affecting these sectors or industries. To the extent that the Underlying Index concentrates in the securities of issuers in a particular sector or industry, the Fund will also concentrate its investments to approximately the same extent. By concentrating its investments in a sector or industry, the Fund faces more risks than if it were diversified broadly over numerous sectors or industries. Such sector-based 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 in a particular sector or industry; 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 sector or industry. In addition, at times, such sector or industry may be out of favor and underperform other sectors or industries or the market as a whole.
Credit Risk: Credit risk is the risk that an issuer of debt securities will be unable to pay principal and interest when due, or that the value of the security will suffer because investors believe the issuer is less able to make required principal and interest payments.

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 a foreign currency depreciates against the U.S. dollar.

Custody Risk: Less developed markets are more likely to experience problems with the clearing and settling of trades and the holding of securities by local banks, agents and depositories.

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 Financial Institution Risk: Certain of the securities that comprise the Underlying Index, while traded on U.S. exchanges, may be issued by foreign financial institutions. Therefore, the Fund may be subject to the risks of investing in securities issued by foreign companies, which may not be subject to the same regulations as companies domiciled in the U.S. The health of many foreign financial institutions is often tied closely with the financial stability of the local economy in which they are domiciled, and therefore are subject to additional risks including but not limited to: policy changes, slow economic growth, and high levels of debt.

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 United States’ 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.

High Dividend Yield Stocks Risk: High yielding stocks are often speculative, high risk investments. These companies can be paying out more than they can support and may reduce their dividends or stop paying dividends at any time, which could have a material adverse effect on the stock price of these companies and the Fund’s performance.

High Yield Securities Risk: Securities that are rated below investment grade (commonly referred to as “junk bonds,” including those bonds rated lower than “BBB-“ by Standard & Poor’s® (a division of the McGraw-Hill Companies, Inc.) (“S&P”) and Fitch, Inc. (“Fitch), “Baa3” by Moody’s® Investors Service, Inc. (“Moody’s”), or “BBBL” by Dominion Bond Rating Service Limited (“Dominion”)), or are unrated but judged by the Adviser to be of comparable quality, at the time of purchase, may be more volatile than higher-rated securities of similar maturity.

Income Risk: Income risk is the risk that the Fund’s income will decline because of falling interest rates.

Infrastructure Industry Risk: Companies in the infrastructure industry may be subject to a variety of factors that could adversely affect their business or operations, including high interest costs in connection with capital construction programs, high degrees of leverage, costs associated with governmental, environmental and other regulations, the level of government spending on infrastructure projects, and other factors. The stock prices of transportation companies may be affected by supply and demand for their specific product, government regulation, world events and economic conditions. The profitability of energy companies is related to worldwide energy prices, exploration, and production spending. Utilities companies face intense competition, which may have an adverse effect on their profit margins, and the rates charged by regulated utility companies are subject to review and limitation by governmental regulatory commissions.

Interest Rate Risk: Interest rate risk is the risk that prices of fixed income securities generally increase when interest rates decline and decrease when interest rates increase. The Fund may lose money if short-term or long-term interest rates rise sharply.

Investment Company Risk: The risks of investment in investment companies, such as CEFs and BDCs, typically reflect the risks of the types of instruments in which the investment companies invest. By investing in another investment company, the Fund becomes a shareholder of that investment company and bears its proportionate share of the fees and expenses of the other investment company.
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.

Liquidity Risk: Liquidity risk is the risk that the Fund may not be able to sell a security in a timely manner at a desired price.

Management Risk: The Fund is subject to the risk that the Adviser’s investment management strategy may cause the Fund to underperform the market or its relevant benchmark or adversely affect the ability of the Fund to achieve its investment objective.
 
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 Foreign Investment Company Risk: Some Fund holdings may be characterized as “passive foreign investment companies” (PFICs) for U.S. tax purposes. Because the application of the PFIC rules may affect, among other things, the character of gains and the amount of gain or loss and the timing of the recognition of income with respect to PFIC shares, and may subject the Fund itself to tax on certain income from PFIC shares, the amount that must be distributed to shareholders and will be taxed to shareholders as ordinary income or long-term capital gain may be increased or decreased substantially as compared to a fund that did not invest in PFIC shares.

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.

Risk Related to Investing in Actively Managed Portfolios: Certain of the Underlying Index constituents are actively managed portfolios, and their success depends upon the investment skills and analytical abilities of the investment adviser to that constituent to develop and effectively implement strategies to achieve the Underlying Index constituent’s investment objective. Subjective decisions made by the investment adviser may cause the Underlying Index constituent to incur losses or to miss profit opportunities on which it may otherwise have capitalized.

Risk Related to Investing in Bonds: Investments in debt securities are generally affected by changes in prevailing interest rates and the creditworthiness of the issuer. Prices of debt securities fall when prevailing interest rates rise. The Fund’s yield on investments in debt securities will fluctuate as the securities in the Fund are rebalanced and reinvested in securities with different interest rates. Investments in bonds are also subject to credit risk. Credit risk is the risk that an issuer of debt securities will be unable to pay principal and interest when due, or that the value of the security will suffer because investors believe the issuer is less able to make required principal and interest payments. This is broadly gauged by the credit ratings of the debt securities in which the Fund invests. However, credit ratings are only the opinions of the rating agencies issuing them, do not purport to reflect the risk of fluctuations in market value and are not absolute guarantees as to the payment of interest and the repayment of principal.

Risk Related to Investing in Closed-End Funds: Common shares of CEFs frequently trade at a discount from their NAV. This risk may be greater if shares of the CEF are removed from the Underlying Index in a relatively short period of time after completion of the initial offering of the CEF.

Risk Related to Investing in ETFs: The Fund may hold ETFs to gain exposure to certain asset classes. As a result, the Fund may be subject to the same risks as the underlying ETFs. While the risks of owning shares of an underlying ETF generally reflect the risks of owning the underlying securities of the index the ETF is designed to track, lack of liquidity in an underlying ETF can result in its value being more volatile than the underlying portfolio securities. Because the value of other ETF shares depends on the demand in the market, the Adviser may not be able to liquidate the Fund’s holdings in those shares at the most optimal time, thereby adversely affecting the Fund’s performance. In addition, ETF shares may trade at a premium or discount to net asset value.

Risks Related to Investing in Exchange Traded Notes (ETNs): The Fund may hold ETNs to gain exposure to certain asset classes. As a result, the Fund may be subject to the same risks as the underlying ETNs. An ETN may trade at a premium or discount to its net asset value. The Fund will indirectly bear its pro rata share of the fees and expenses incurred by an ETN it invests in, including advisory fees, and will pay brokerage commissions in connection with the purchase and sale of shares of ETNs. ETNs that invest in commodities may be, or may become, subject to regulatory trading limits that could hurt the value of their securities and could affect the Fund’s ability to pursue its investment program as described in this prospectus. The value of an ETN may also differ from the valuation of its reference market due to changes in the issuer’s credit rating, and any payments on an ETN by an issuer is subject to the issuer's ability to pay its obligations as they become due.

Risk Related to Investing in Leveraged Portfolios: Certain of the Underlying Index components may engage in transactions that give rise to leverage. Such transactions may include, among others, reverse repurchase agreements, securities lending, forward commitment transactions, short sales and certain derivative transactions. The use of leverage may cause the Underlying Index components to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet segregation requirements. Leverage may cause the Underlying Index component’s share price to be more volatile than if it had not been leveraged, as certain types of leverage may exaggerate the effect of any increase or decrease in the value of the Underlying Index component’s portfolio securities. The loss on leveraged investments may substantially exceed the initial investment.

Risk Related to Investing in Listed Private Equity Companies: There are certain risks inherent in investing in listed private equity companies, which encompass BDCs and other financial institutions or vehicles whose principal business is to invest in and lend capital to, or provide services to privately held companies. The 1940 Act imposes certain restraints upon the operations of a BDC. For example, BDCs are required to invest at least 70% of their total assets primarily in securities of private companies or thinly traded U.S. public companies, cash, cash equivalents, U.S. government securities and high quality debt investments that mature in one year or less. Generally, little public information exists for private and thinly traded companies, and there is a risk that investors may not be able to make a fully informed investment decision. With investments in debt instruments, there is a risk that the issuer may default on its payments or declare bankruptcy. Additionally, a BDC may incur indebtedness only in amounts such that the BDC’s asset coverage equals at least 200% after such incurrence. These limitations on asset mix and leverage may prohibit the way that the BDC raises capital. BDCs generally invest in less mature private companies, which involve greater risk than well-established, publicly-traded companies.

Risks Related to Investing in Master Limited Partnerships (MLPs): Investments in securities of MLPs involve risks that differ from investments in common stock including risks related to limited control and limited rights to vote on matters affecting the MLP, risks related to potential conflicts of interest between the MLP and the MLP’s general partner, cash flow risks, as described in more detail herein. MLP common units and other equity securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards MLPs or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of MLPs, generally measured in terms of distributable cash flow). Prices of common units of individual MLPs and other equity securities also can be affected by fundamentals unique to the partnership or company, including earnings power and coverage ratios.

Risks Related to Investing in Mortgage REITs: Mortgage REITs are exposed to the risks specific to the real estate market as well as credit risk, interest rate risk, leverage risk and prepayment risk.
 
Risk Related to Investing in Non-Hedging Foreign Currency Trading: Certain of the Underlying Index constituents may engage in forward foreign currency transactions for speculative purposes. The Underlying Index constituent’s advisors may purchase or sell foreign currencies through the use of forward contracts based on the applicable advisors’ judgment regarding the direction of the market for a particular foreign currency or currencies. In pursuing this strategy, the advisors seek to profit from anticipated movements in currency rates by establishing “long” and/or “short” positions in forward contracts on various foreign currencies. Foreign exchange rates can be extremely volatile and a variance in the degree of volatility of the market or in the direction of the market from the advisors’ expectations may produce significant losses to the Underlying Index constituent.

Risk Related to Investing in Option Trading Strategies: Options are generally subject to volatile swings in price based on changes in value of the underlying instrument, and the options written by an Underlying Index constituent may be particularly subject to this risk because of the volatility of the underlying stocks selected by the Underlying Index constituent. The Underlying Index constituent may incur a form of economic leverage through its use of options, which will increase the volatility of the Underlying Index constituent’s returns and may increase the risk of loss to the Underlying Index constituent. While the Underlying Index constituent will collect premiums on the options it writes, the Underlying Index constituent’s risk of loss if one or more of its options is exercised and expires in-the-money may substantially outweigh the gains to the Underlying Index constituent from the receipt of such option premiums. Moreover, the options sold by the Underlying Index constituent may have imperfect correlation to the returns of their underlying stocks.

Risks Related to Investing in Real Estate Stocks and REITs: The Fund may invest in an underlying fund that invests in companies that invest in real estate, such as REITs, which exposes investors in the Fund to the risks of owning real estate directly, as well as to risks that relate specifically to the way in which real estate companies are organized and operated. Real estate is highly sensitive to general and local economic conditions and developments, and characterized by intense competition and periodic overbuilding. Many real estate companies, including REITs, utilize leverage (and some may be highly leveraged), which increases risk and could adversely affect a real estate company's operations and market value in periods of rising interest rates.

Risks Related to Investing in the Energy Sector: The value of securities issued by companies in the energy sector may decline for many reasons, including, without limitation, changes in energy prices; international politics; energy conservation; the success of exploration projects; natural disasters or other catastrophes; changes in exchange rates, interest rates, or economic conditions; changes in demand for energy products and services; and tax and other government regulatory policies.

Risk 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.

Risk 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.

Short Sale Risk: Certain of the Underlying Index constituents in which the Fund invests may engage in short sale transactions. Short sale risks include, among others, the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale may fail to honor its contract terms, causing a loss to the Underlying Index constituent.

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.

Strategy Risk: There is no guarantee that the Underlying Index will outperform any alternative strategy that might be employed in respect of the component assets or that past volatilities and correlations of particular asset classes will be indicative of future results.

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 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 SuperDividend Alternatives ETF (Prospectus Summary) | Global X SuperDividend Alternatives ETF | Global X SuperDividend Alternatives ETF  
Prospectus: rr_ProspectusTable  
Trading Symbol dei_TradingSymbol ALTY
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.75%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [9]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 2.11% [10]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 2.86%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 289
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 886
[1] Hybrid Index performance reflects the performance of the Solactive MLP Composite Index.
[2] The Fund is classified for federal income tax purposes as a taxable regular corporation or so-called Subchapter "C’’ corporation. As a ‘‘C’’ corporation, the Fund accrues deferred tax liability for its future tax liability associated with the capital appreciation of its investments and the distributions received by the Fund on equity securities of master limited partnerships considered to be a return of capital and for any net operating gains. The Fund’s accrued deferred tax liability, if any, is reflected each day in the Fund’s net asset value per share. The deferred income tax expense/(benefit) represents an estimate of the Fund’s potential tax expense/(benefit) if it were to recognize the unrealized gains/(losses) in the portfolio. An estimate of deferred income tax expense/(benefit) is dependent upon the Fund’s net investment income/(loss) and realized and unrealized gains/(losses) on investments and such expenses may vary greatly from year to year and from day to day depending on the nature of the Fund’ s investments, the performance of those investments and general market conditions. Therefore, any estimate of deferred income tax expense/(benefit) cannot be reliably predicted from year to year. The Fund has accrued a state franchise tax liability for the year ended November 30, 2015. State franchise taxes are separate and distinct from state income taxes. State franchise taxes are imposed on a corporation for the right to conduct business in the state and typically are based off the net worth or capital apportioned to a state. Due to the nature of the Fund's investments, the Fund may be required to file franchise state returns in several states.
[3] After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
[4] The Fund's Other Expenses has been restated from fiscal year amounts to reflect estimated fees and expenses for the upcoming fiscal year. The Fund is classified for federal income tax purposes as a taxable regular corporation or so-called Subchapter ‘‘C’’ corporation. As a ‘‘C’’ corporation, the Fund accrues deferred tax liability for its future tax liability associated with the capital appreciation of its investments and the distributions received by the Fund on equity securities of master limited partnerships considered to be a return of capital and for any net operating gains. The Fund’s accrued deferred tax liability, if any, is reflected each day in the Fund’s net asset value per share. The deferred income tax expense/(benefit) represents an estimate of the Fund’s potential tax expense/(benefit) if it were to recognize the unrealized gains/(losses) in the portfolio. An estimate of deferred income tax expense/(benefit) is dependent upon the Fund’s net investment income/(loss) and realized and unrealized gains/(losses) on investments and such expenses may vary greatly from year to year and from day to day depending on the nature of the Fund’ s investments, the performance of those investments and general market conditions. Therefore, any estimate of deferred income tax expense/(benefit) cannot be estimated in advance or reliably predicted from year to year. The Fund has accrued a state franchise tax liability for the year ended November 30, 2015. State franchise taxes are separate and distinct from state income taxes. State franchise taxes are imposed on a corporation for the right to conduct business in the state and typically are based off the net worth or capital apportioned to a state. Due to the nature of the Fund's investments, the Fund may be required to file franchise state returns in several states.
[5] After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
[6] After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown above. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).
[7] The Fund will accrue a state franchise tax liability. State franchise taxes are separate and distinct from state income taxes. State franchise taxes are imposed on a corporation for the right to conduct business in the state and typically are based off the net worth or capital apportioned to a state. Due to the nature of the Fund's investments, the Fund may be required to file franchise state returns in several states.
[8] “Other Expenses” reflect estimated expenses for the Fund’s first fiscal year of operations. The Fund is classified for federal income tax purposes as a taxable regular corporation or so-called Subchapter ‘‘C’’ corporation. As a ‘‘C’’ corporation, the Fund will accrue deferred tax liability for its future tax liability associated with the capital appreciation of its investments and the distributions received by the Fund on equity securities of master limited partnerships considered to be a return of capital and for any net operating gains. The Fund’s accrued deferred tax liability, if any, will be reflected each day in the Fund’s net asset value per share. The deferred income tax expense/(benefit) represents an estimate of the Fund’s potential tax expense/(benefit) if it were to recognize the unrealized gains/(losses) in the portfolio. An estimate of deferred income tax expense/(benefit) is dependent upon the Fund’s net investment income/(loss) and realized and unrealized gains/(losses) on investments and such expenses may vary greatly from year to year and from day to day depending on the nature of the Fund’ s investments, the performance of those investments and general market conditions. Therefore, any estimate of deferred income tax expense/(benefit) cannot be reliably estimated in advance or predicted from year to year.
[9] "Other Expenses" reflect estimated expenses for the Fund's current fiscal year.
[10] “Acquired Fund Fees and Expenses” sets forth the Fund’s pro rata portion of the cumulative expenses charged by the exchange traded funds, closed end funds, business development companies and other investment companies in which the Fund invests. These expenses are calculated based on the Fund's portfolio holdings during the prior fiscal period. The actual Acquired Fund Fees and Expenses will vary with changes in the allocations of the Fund’s assets.