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VanEck Vectors® Brazil Small-Cap ETF  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading VanEck Vectors® Brazil Small-Cap ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
VanEck Vectors® Brazil Small-Cap ETF (the “Fund”) seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the MVIS® Brazil Small-Cap Index (the “Brazil Small-Cap Index”).
Expense [Heading] rr_ExpenseHeading FUND FEES AND EXPENSES
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”).
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination May 01, 2021
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading PORTFOLIO TURNOVER
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund will pay transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover will cause the Fund to incur additional transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, may affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 38% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 38.00%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions This example does not take into account brokerage commissions that you pay when purchasing or selling Shares of the Fund.
Expense Example [Heading] rr_ExpenseExampleHeading EXPENSE EXAMPLE
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This 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 brokerage commissions that you pay when purchasing or selling Shares of the Fund.
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 redeem all of your Shares at the end of those periods. The example also assumes that your investment has a 5% annual return and that the Fund’s operating expenses remain the same (except that the example incorporates the fee waivers and/or expense reimbursement arrangement for only the first year). 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 normally invests at least 80% of its total assets in securities that comprise the Fund’s benchmark index. The Brazil Small-Cap Index includes securities of Brazilian small-capitalization companies. A company is generally considered to be a Brazilian company if it is incorporated in Brazil or is incorporated outside of Brazil but has at least 50% of its revenues/related assets in Brazil. As of December 31, 2019, the Brazil Small-Cap Index included 66 securities of companies with a market capitalization range of between approximately $406.1 million and $3.4 billion and a weighted average market capitalization of $2.0 billion. These amounts are subject to change. The Fund’s 80% investment policy is non-fundamental and may be changed without shareholder approval upon 60 days’ prior written notice to shareholders.

The Fund, using a “passive” or indexing investment approach, attempts to approximate the investment performance of the Brazil Small-Cap Index by investing in a portfolio of securities that generally replicates the Brazil Small-Cap Index. Unlike many investment companies that try to “beat” the performance of a benchmark index, the Fund does not try to “beat” the Brazil Small-Cap Index and does not seek temporary defensive positions when markets decline or appear overvalued. Indexing may eliminate the chance that the Fund will substantially outperform the Brazil Small-Cap Index but also may reduce some of the risks of active management, such as poor security selection.

The Fund may concentrate its investments in a particular industry or group of industries to the extent that the Brazil Small-Cap Index concentrates in an industry or group of industries. As of December 31, 2019, each of the basic materials, consumer discretionary and utilities sectors represented a significant portion of the Fund.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund may concentrate its investments in a particular industry or group of industries to the extent that the Brazil Small-Cap Index concentrates in an industry or group of industries. As of December 31, 2019, each of the basic materials, consumer discretionary and utilities sectors represented a significant portion of the Fund.
Risk [Heading] rr_RiskHeading PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk. An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Therefore, you should consider carefully the following risks before investing in the Fund, each of which could significantly and adversely affect the value of an investment in the Fund.

Special Risk Considerations of Investing in Brazilian Issuers. Investments in securities of Brazilian issuers, including issuers located outside of Brazil that generate significant revenues from Brazil, involve risks and special considerations not typically associated with investments in the U.S. securities markets. The Brazilian economy has been characterized by frequent, and occasionally drastic, interventions by the Brazilian government, including the imposition of wage and price controls, exchange controls, limiting imports, blocking access to bank accounts and other measures. The Brazilian government has often changed monetary, taxation, credit, trade and other policies to influence the core of Brazil’s economy. Actions taken by the Brazilian government concerning the economy may have significant effects on Brazilian companies and on market conditions and prices of Brazilian securities. Brazil’s economy may be subject to sluggish economic growth due to, among other things, weak consumer spending, political turmoil, high rates of inflation and low commodity prices. Brazil suffers from chronic structural public sector deficits. The Brazilian government has privatized certain entities, which have suffered losses due to, among other things, the inability to adjust to a competitive environment.

The market for Brazilian securities is directly influenced by the flow of international capital, and economic and market conditions of certain countries, especially emerging market countries. As a result, adverse economic conditions or developments in other emerging market countries have at times significantly affected the availability of credit in the Brazilian economy and resulted in considerable outflows of funds and declines in the amount of foreign currency invested in Brazil.

Investments in Brazilian securities may be subject to certain restrictions on foreign investment. Brazilian law provides that whenever a serious imbalance in Brazil’s balance of payments exists or is anticipated, the Brazilian government may impose temporary restrictions on the remittance to foreign investors of the proceeds of their investment in Brazil and on the conversion of the Brazilian real into foreign currency.

Brazil has historically experienced high rates of inflation and a high level of debt, each of which may constrain economic growth. Brazil suffers from high levels of corruption, crime and income disparity. The Brazilian economy is also heavily dependent upon commodity prices and international trade. Unanticipated political or social developments may result in sudden and significant investment losses. An increase in prices for commodities, such as petroleum, the depreciation of the Brazilian real and future governmental measures seeking to maintain the value of the Brazilian real in relation to the U.S. dollar, may trigger increases in inflation in Brazil and may slow the rate of growth of the Brazilian economy. Conversely, appreciation of the Brazilian real relative to the U.S. dollar may lead to the deterioration of Brazil’s current account and balance of payments as well as limit the growth of exports.

Risk of Investing in Foreign Securities. Investments in the securities of foreign issuers involve risks beyond those associated with investments in U.S. securities. These additional risks include greater market volatility, the availability of less reliable financial information, higher transactional and custody costs, taxation by foreign governments, decreased market liquidity and political instability. Because certain foreign securities markets may be limited in size, the activity of large traders may have an undue influence on the prices of securities that trade in such markets. The Fund invests in securities of issuers located in countries whose economies are heavily dependent upon trading with key partners. Any reduction in this trading may have an adverse impact on the Fund’s investments.

Risk of Investing in Emerging Market Issuers. Investments in securities of emerging market issuers are exposed to a number of risks that may make these investments volatile in price or difficult to trade. Emerging markets are more likely than developed markets to experience problems with the clearing and settling of trades, as well as the holding of securities by local banks, agents and depositories. Political risks may include unstable governments, nationalization, restrictions on foreign ownership, laws that prevent investors from getting their money out of a country and legal systems that do not protect property rights as well as the laws of the United States. Market risks may also include economies that concentrate in only a few industries, securities issues that are held by only a few investors, liquidity issues and limited trading capacity in local exchanges and the possibility that markets or issues may be manipulated by foreign nationals who have inside information.

Foreign Currency Risk. Because the Fund’s assets may be invested in securities denominated in foreign currencies, the proceeds received by the Fund from these investments will generally be in foreign currencies. The Fund’s exposure to foreign currencies and changes in the value of foreign currencies versus the U.S. dollar may result in reduced returns for the Fund, and the value of certain foreign currencies may be subject to a high degree of fluctuation. Moreover, the Fund may incur costs in connection with conversions between U.S. dollars and foreign currencies.

Risk of Investing in Depositary Receipts. The Fund may invest in depositary receipts which involve similar risks to those associated with investments in foreign securities. Depositary receipts are receipts listed on U.S. or foreign exchanges issued by banks or trust companies that entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares. Investments in depositary receipts may be less liquid than the underlying shares in their primary trading market and, if not included in the Brazil Small-Cap Index, may negatively affect the Fund’s ability to replicate the performance of the Brazil Small-Cap Index.

Risk of Investing in the Basic Materials Sector. The Fund will be sensitive to, and its performance may depend to a greater extent on, the overall condition of the basic materials sector. Companies engaged in the production and distribution of basic materials may be adversely affected by changes in world events, political and economic conditions, energy conservation, environmental policies, commodity price volatility, changes in exchange rates, imposition of import controls, increased competition, depletion of resources and labor relations.

Risk of Investing in the Consumer Discretionary Sector. The Fund will be sensitive to, and its performance may depend to a greater extent on, the overall condition of the consumer discretionary sector. Companies in the consumer discretionary sector are subject to fluctuations in supply and demand. These companies may also be adversely affected by changes in consumer spending as a result of world events, political and economic conditions, commodity price volatility, changes in exchange rates, imposition of import controls, increased competition, depletion of resources and labor relations.

Risk of Investing in the Utilities Sector. The Fund will be sensitive to, and its performance may depend to a greater extent on, the overall condition of the utilities sector. Companies in the utilities sector may be adversely affected by changes in exchange rates, domestic and international competition, difficulty in raising adequate amounts of capital and governmental limitation on rates charged to customers.

Risk of Investing in Small-Capitalization Companies. Small-capitalization companies may be more volatile and more likely than medium- and large-capitalization companies to have narrower product lines, fewer financial resources, less management depth and experience and less competitive strength. In addition, these companies often have greater price volatility, lower trading volume and less liquidity than larger more established companies. Returns on investments in securities of small-capitalization companies could trail the returns on investments in securities of medium-capitalization and large-capitalization companies.

Risk of Cash Transactions. Unlike other exchange-traded funds (“ETFs”), the Fund expects to effect its creations and redemptions partially for in-kind securities and principally for cash, rather than wholly for in-kind securities. Therefore, it may be required to sell portfolio securities and subsequently incur brokerage costs and/or recognize gains or losses on such sales that the Fund might not have recognized if it were to distribute portfolio securities in kind. As such, investments in Shares may be less tax-efficient than an investment in a conventional ETF.

Equity Securities Risk. The value of the equity securities held by the Fund may fall due to general market and economic conditions, perceptions regarding the markets in which the issuers of securities held by the Fund participate, or factors relating to specific issuers in which the Fund invests. Equity securities are subordinated to preferred securities and debt in a company’s capital structure with respect to priority in right to a share of corporate income, and therefore will be subject to greater dividend risk than preferred securities or debt instruments. In addition, while broad market measures of equity securities have historically generated higher average returns than fixed income securities, equity securities have generally also experienced significantly more volatility in those returns, although under certain market conditions fixed income securities may have comparable or greater price volatility.

Market Risk. The prices of the securities in the Fund are subject to the risks associated with investing in the securities market, including general economic conditions, sudden and unpredictable drops in value, exchange trading suspensions and closures and public health risks. These risks may be magnified if certain social, political, economic and other conditions and events (such as natural disasters, epidemics and pandemics, terrorism, conflicts and social unrest) adversely interrupt the global economy; in these and other circumstances, such events or developments might affect companies world-wide. An investment in the Fund may lose money.

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 system failures.

Index Tracking Risk. The Fund’s return may not match the return of the Brazil Small-Cap Index for a number of reasons. For example, the Fund incurs a number of operating expenses, including taxes, not applicable to the Brazil Small-Cap Index and incurs costs associated with buying and selling securities, especially when rebalancing the Fund’s securities holdings to reflect changes in the composition of the Brazil Small-Cap Index and raising cash to meet redemptions or deploying cash in connection with newly created Creation Units (defined herein), which are not factored into the return of the Brazil Small-Cap Index. Transaction costs, including brokerage costs, will decrease the Fund’s net asset value ("NAV") to the extent not offset by the transaction fee payable by an Authorized Participant (“AP”). Market disruptions and regulatory restrictions could have an adverse effect on the Fund’s ability to adjust its exposure to the required levels in order to track the Brazil Small-Cap Index. Errors in the Brazil Small-Cap Index data, the Brazil Small-Cap Index computations and/or the construction of the Brazil Small-Cap Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Brazil Small-Cap Index provider for a period of time or at all, which may have an adverse impact on the Fund and its shareholders. Shareholders should understand that any gains from the Brazil Small-Cap Index provider's errors will be kept by the Fund and its shareholders and any losses or costs resulting from the Brazil Small-Cap Index provider's errors will be borne by the Fund and its shareholders. When the Brazil Small-Cap Index is rebalanced and the Fund in turn rebalances its portfolio to attempt to increase the correlation between the Fund’s portfolio and the Brazil Small-Cap Index, any transaction costs and market exposure arising from such portfolio rebalancing will be borne directly by the Fund and its shareholders. Apart from scheduled rebalances, the Brazil Small-Cap Index provider or its agents may carry out additional ad hoc rebalances to the Brazil Small-Cap Index. Therefore, errors and additional ad hoc rebalances carried out by the Brazil Small-Cap Index provider or its agents to the Brazil Small-Cap Index may increase the costs to and the tracking error risk of the Fund. In addition, the Fund may not invest in certain securities included in the Brazil Small-Cap Index, or invest in them in the exact proportions in which they are represented in the Brazil Small-Cap Index. The Fund’s performance may also deviate from the return of the Brazil Small-Cap Index due to legal restrictions or limitations imposed by the governments of certain countries, certain listing standards of the Fund’s listing exchange (the “Exchange”), a lack of liquidity on stock exchanges in which such securities trade, potential adverse tax consequences or other regulatory reasons (such as diversification requirements). The Fund may value certain of its investments and/or other assets based on fair value prices. To the extent the Fund calculates its NAV based on fair value prices and the value of the Brazil Small-Cap Index is based on securities' closing prices on local foreign markets ( i.e., the value of the Brazil Small-Cap Index is not based on fair value prices), the Fund’s ability to track the Brazil Small-Cap Index may be adversely affected. In addition, any issues the Fund encounters with regard to currency convertibility (including the cost of borrowing funds, if any) and repatriation may also increase the index tracking risk. When markets are volatile, the ability to sell securities at fair value prices may be adversely impacted and may result in additional trading costs and/or increase the index tracking risk. The Fund may also need to rely on borrowings to meet redemptions, which may lead to increased expenses. For tax efficiency purposes, the Fund may sell certain securities, and such sale may cause the Fund to realize a loss and deviate from the performance of the Brazil Small-Cap Index. In light of the factors discussed above, the Fund’s return may deviate significantly from the return of the Brazil Small-Cap Index. Changes to the composition of the Brazil Small-Cap Index in connection with a rebalancing or reconstitution of the Brazil Small-Cap Index may cause the Fund to experience increased volatility, during which time the Fund’s index tracking risk may be heightened.

Authorized Participant Concentration Risk. The Fund may have a limited number of financial institutions that act as APs, none of which are obligated to engage in creation and/or redemption transactions. To the extent that those APs exit the business, or are unable to or choose not to process creation and/or redemption orders, and no other AP is able to step forward to create and redeem, there may be a significantly diminished trading market for Shares or Shares may trade like closed-end funds at a discount (or premium) to NAV and possibly face trading halts and/or de-listing. The AP concentration risk may be heightened in scenarios where APs have limited or diminished access to the capital required to post collateral.

No Guarantee of Active Trading Market. While Shares are listed on the Exchange, there can be no assurance that an active trading market for the Shares will be maintained. Further, secondary markets may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods in times of market stress because market makers and APs may step away from making a market in the Shares and in executing creation and redemption orders, which could cause a material deviation in the Fund’s market price from its NAV.

Trading Issues. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange’s “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.

Passive Management Risk. An investment in the Fund involves risks similar to those of investing in any fund invested in equity securities traded on an exchange, such as market fluctuations caused by such factors as economic and political developments, changes in interest rates and perceived trends in security prices. However, because the Fund is not “actively” managed, unless a specific security is removed from the Brazil Small-Cap Index, the Fund generally would not sell a security because the security’s issuer was in financial trouble. Additionally, unusual market conditions may cause the Brazil Small-Cap Index provider to postpone a scheduled rebalance or reconstitution, which could cause the Brazil Small-Cap Index to vary from its normal or expected composition. Therefore, the Fund’s performance could be lower than funds that may actively shift their portfolio assets to take advantage of market opportunities or to lessen the impact of a market decline or a decline in the value of one or more issuers.

Fund Shares Trading, Premium/Discount Risk and Liquidity of Fund Shares. The market price of the Shares may fluctuate in response to the Fund’s NAV, the intraday value of the Fund’s holdings and supply and demand for Shares. The Adviser cannot predict whether Shares will trade above, below, or at their most recent NAV. Disruptions to creations and redemptions, the existence of market volatility or potential lack of an active trading market for Shares (including through a trading halt), as well as other factors, may result in Shares trading at a significant premium or discount to NAV or to the intraday value of the Fund’s holdings. If a shareholder purchases Shares at a time when the market price is at a premium to the NAV or sells Shares at a time when the market price is at a discount to the NAV, the shareholder may pay significantly more or receive significantly less than the underlying value of the Shares that were bought or sold or the shareholder may be unable to sell his or her Shares. The securities held by the Fund may be traded in markets that close at a different time than the Exchange. Liquidity in those securities may be reduced after the applicable closing times. Accordingly, during the time when the Exchange is open but after the applicable market closing, fixing or settlement times, bid-ask spreads on the Exchange and the resulting premium or discount to the Shares’ NAV may widen. Additionally, in stressed market conditions, the market for the Fund’s Shares may become less liquid in response to deteriorating liquidity in the markets for the Fund’s underlying portfolio holdings. There are various methods by which investors can purchase and sell Shares. Investors should consult their financial intermediaries before purchasing or selling Shares of the Fund.

Concentration Risk. The Fund’s assets may be concentrated in a particular sector or sectors or industry or group of industries to the extent the Brazil Small-Cap Index concentrates in a particular sector or sectors or industry or group of industries. To the extent that the Fund is concentrated in a particular sector or sectors or industry or group of industries, the Fund will be subject to the risk that economic, political or other conditions that have a negative effect on those sectors and/or industries may negatively impact the Fund to a greater extent than if the Fund’s assets were invested in a wider variety of sectors or industries.
Risk Lose Money [Text] rr_RiskLoseMoney An investment in the Fund may lose money.
RIsk Not Insured [Text] rr_RiskNotInsured An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart that follows shows how the Fund performed for the calendar years shown. The table below the bar chart shows the Fund’s average annual returns (before and after taxes). The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for the one year, five year, ten year and/or since inception periods, as applicable, compared with the Fund’s benchmark index and a broad measure of market performance. All returns assume reinvestment of dividends and distributions. 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.vaneck.com .
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table provide an indication of the risks of investing in the Fund by comparing the Fund’s performance from year to year and by showing how the Fund’s average annual returns for the one year, five year, ten year and/or since inception periods, as applicable, compared with the Fund’s benchmark index and a broad measure of market performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.vaneck.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 (%)—Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best Quarter:
26.74%
3Q '17
Worst Quarter:
-35.49%
3Q '15
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2017
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.74%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.49%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns for the Periods Ended December 31, 2019
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate The after-tax returns presented in the table below are calculated using the highest historical individual 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.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
The after-tax returns presented in the table below are calculated using the highest historical individual 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 below. 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.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
See “License Agreements and Disclaimers” for important information about the Fund’s benchmark index.
VanEck Vectors® Brazil Small-Cap ETF | MVIS Brazil Small-Cap Index (reflects no deduction for fees, expenses or taxes, except withholding taxes)  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 41.43%
Past 5 Years rr_AverageAnnualReturnYear05 9.80%
Past 10 Years rr_AverageAnnualReturnYear10 (0.48%)
VanEck Vectors® Brazil Small-Cap ETF | S&P 500® Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 31.49%
Past 5 Years rr_AverageAnnualReturnYear05 11.70%
Past 10 Years rr_AverageAnnualReturnYear10 13.56%
VanEck Vectors® Brazil Small-Cap ETF | VanEck Vectors Brazil Small-Cap ETF  
Risk/Return: rr_RiskReturnAbstract  
Shareholder Fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Management Fee rr_ManagementFeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.73% [1]
Fee Waivers and Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.10%) [1]
Total Annual Fund Operating Expenses After Fee Waivers and Expense Reimbursement rr_NetExpensesOverAssets 0.63% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 64
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 223
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 396
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 897
Annual Return 2010 rr_AnnualReturn2010 25.57%
Annual Return 2011 rr_AnnualReturn2011 (27.47%)
Annual Return 2012 rr_AnnualReturn2012 17.86%
Annual Return 2013 rr_AnnualReturn2013 (28.58%)
Annual Return 2014 rr_AnnualReturn2014 (25.19%)
Annual Return 2015 rr_AnnualReturn2015 (48.97%)
Annual Return 2016 rr_AnnualReturn2016 60.92%
Annual Return 2017 rr_AnnualReturn2017 51.71%
Annual Return 2018 rr_AnnualReturn2018 (11.66%)
Annual Return 2019 rr_AnnualReturn2019 40.81%
Past 1 Year rr_AverageAnnualReturnYear01 40.81%
Past 5 Years rr_AverageAnnualReturnYear05 9.16%
Past 10 Years rr_AverageAnnualReturnYear10 (1.17%)
VanEck Vectors® Brazil Small-Cap ETF | VanEck Vectors Brazil Small-Cap ETF | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 39.38%
Past 5 Years rr_AverageAnnualReturnYear05 7.60%
Past 10 Years rr_AverageAnnualReturnYear10 (2.59%)
VanEck Vectors® Brazil Small-Cap ETF | VanEck Vectors Brazil Small-Cap ETF | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 24.30%
Past 5 Years rr_AverageAnnualReturnYear05 6.36%
Past 10 Years rr_AverageAnnualReturnYear10 (1.29%)
[1] Van Eck Associates Corporation (the "Adviser") has agreed to waive fees and/or pay Fund expenses to the extent necessary to prevent the operating expenses of the Fund (excluding acquired fund fees and expenses, interest expense, trading expenses, taxes and extraordinary expenses) from exceeding 0.59% of the Fund's average daily net assets per year until at least May 1, 2021. During such time, the expense limitation is expected to continue until the Fund's Board of Trustees acts to discontinue all or a portion of such expense limitation.