Objective, Primary [Text Block]

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Risk/Return [Heading]

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VanEck Vectors® Intermediate Muni ETF

Objective [Heading]

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INVESTMENT OBJECTIVE

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VanEck Vectors ^® Intermediate Muni ETF ¹ (the “Fund”) seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the Bloomberg Barclays AMT-Free Intermediate Continuous Municipal Index (the “Intermediate Index”).

¹ Prior to September 1, 2020, the Fund's name was VanEck Vectors ^® AMT-Free Intermediate Municipal Inde x ETF.

Expense [Heading]

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FUND FEES AND EXPENSES

Expense Narrative [Text Block]

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The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund (“Shares”). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Text]

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

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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

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Sep. 01, 2021

Portfolio Turnover [Heading]

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PORTFOLIO TURNOVER

Portfolio Turnover [Text Block]

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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 7% of the average value of its portfolio.

Portfolio Turnover, Rate

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7.00%

Expense Exchange Traded Fund Commissions [Text]

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You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

Expense Example [Heading]

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EXPENSE EXAMPLE

Expense Example Narrative [Text Block]

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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.

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.

Expense Example by, Year, Caption [Text]

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Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Strategy [Heading]

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PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

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The Fund normally invests at least 80% of its total assets in fixed income securities that comprise the Intermediate Index. The Intermediate Index is comprised of publicly traded municipal bonds that cover the U.S. dollar denominated intermediate term tax-exempt bond market. This 80% investment policy is non-fundamental and may be changed without shareholder approval upon 60 days’ prior written notice to shareholders.

The Fund has adopted a fundamental investment policy to invest at least 80% of its assets in investments suggested by its name. For purposes of this policy, the term “assets” means net assets plus the amount of any borrowings for investment purposes. This percentage limitation applies at the time of the investment.

The Fund, using a “passive” or indexing investment approach, attempts to approximate the investment performance of the Intermediate Index. Unlike many investment companies that try to “beat” the performance of a benchmark index, the Fund does not try to “beat” the Intermediate Index and does not take temporary defensive positions that are inconsistent with its investment objective of seeking to replicate the Intermediate Index. Because of the practical difficulties and expense of purchasing all of the securities in the Intermediate Index, the Fund does not purchase all of the securities in the Intermediate Index. Instead, the Adviser utilizes a “sampling” methodology in seeking to achieve the Fund’s objective. As such, the Fund may purchase a subset of the bonds in the Intermediate Index in an effort to hold a portfolio of bonds with generally the same risk and return characteristics of the Intermediate Index.

The Fund may concentrate its investments in a particular industry or group of industries to the extent that the Intermediate Index concentrates in an industry or group of industries. As of April 30, 2020 , each of the special tax ( i.e. , revenue bonds backed by a specific tax) and transportation sectors represented a significant portion of the Fund.

Strategy Portfolio Concentration [Text]

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Risk [Heading]

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PRINCIPAL RISKS OF INVESTING IN THE FUND

Risk Narrative [Text Block]

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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.

Municipal Securities Risk. Municipal securities are subject to the risk that litigation, legislation or other political events, local business or economic conditions, credit rating downgrades, or the bankruptcy of the issuer could have a significant effect on an issuer’s ability to make payments of principal and/or interest or otherwise affect the value of such securities. Certain municipalities may have difficulty meeting their obligations due to, among other reasons, changes in underlying demographics. Municipal securities can be significantly affected by political changes as well as uncertainties in the municipal market related to government regulation, taxation, legislative changes or the rights of municipal security holders. Because many municipal securities are issued to finance similar projects, especially those relating to education, health care, transportation, utilities and water and sewer, conditions in those sectors can affect the overall municipal market. Municipal securities include general obligation bonds, which are backed by the “full faith and credit” of the issuer, which has the power to tax residents to pay bondholders. Timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base. General obligation bonds generally are not backed by revenues from a specific project or source. Municipal securities also include revenue bonds, which are generally backed by revenue from a specific project or tax. The issuer of a revenue bond makes interest and principal payments from revenues generated from a particular source or facility, such as a tax on particular property or revenues generated from a municipal water or sewer utility or an airport. Revenue bonds generally are not backed by the full faith and credit and general taxing power of the issuer. The market for municipal bonds may be less liquid than for taxable bonds. There may be less information available on the financial condition of issuers of municipal securities than for public corporations. Municipal instruments may be susceptible to periods of economic stress, which could affect the market values and marketability of many or all municipal obligations of issuers in a state, U.S. territory, or possession. For example, the COVID-19 pandemic has significantly stressed the financial resources of many municipal issuers, which may impair a municipal issuer’s ability to meet its financial obligations when due and could adversely impact the value of its bonds, which could negatively impact the performance of the Fund.

Credit Risk. Bonds are subject to credit risk. Credit risk refers to the possibility that the issuer or guarantor of a security will be unable and/or unwilling to make timely interest payments and/or repay the principal on its debt or to otherwise honor its obligations and/or default completely. Bonds are subject to varying degrees of credit risk, depending on the issuer’s financial condition and on the terms of the securities, which may be reflected in credit ratings. There is a possibility that the credit rating of a bond may be downgraded after purchase or the perception of an issuer’s credit worthiness may decline, which may adversely affect the value of the security.

Interest Rate Risk. Debt securities, such as bonds, are also subject to interest rate risk. Interest rate risk refers to fluctuations in the value of a bond resulting from changes in the general level of interest rates. When the general level of interest rates goes up, the prices of most debt securities go down. When the general level of interest rates goes down, the prices of most debt securities go up. The prevailing historically low interest rate environment increases the risks associated with rising interest rates, including the potential for periods of volatility and increased redemptions. In addition, debt securities, such as bonds, with longer durations tend to be more sensitive to interest rate changes, usually making them more volatile than debt securities with shorter durations. In addition, in response to the COVID-19 pandemic, as with other serious economic disruptions, governmental authorities and regulators are enacting significant fiscal and monetary policy changes, including providing direct capital infusions into companies, creating new monetary programs and lowering interest rates. These actions present heightened risks to debt instruments, and such risks could be even further heightened if these actions are unexpectedly or suddenly reversed or are ineffective in achieving their desired outcomes.

Call Risk. The Fund may invest in callable bonds. If interest rates fall, it is possible that issuers of callable securities will “call” (or prepay) their bonds before their maturity date. If a call were exercised by the issuer during or following a period of declining interest rates, the Fund is likely to have to replace such called security with a lower yielding security or securities with greater risks or other less favorable features. If that were to happen, it would decrease the Fund’s net investment income.

California Risk. The Fund may invest a significant portion of its assets in municipal obligations of issuers located in the State of California. Consequently, the Fund may be affected by political, economic, regulatory and other developments within California and by the financial condition of California’s political subdivisions, agencies, instrumentalities and public authorities.

New York Risk. The Fund may invest a significant portion of its assets in municipal obligations of issuers located in the State of New York. Consequently, the Fund may be affected by political, economic, regulatory and other developments within New York and by the financial condition of New York’s political subdivisions, agencies, instrumentalities and public authorities.

Special Tax Bond Risk. The Fund will be sensitive to, and its performance may depend to a greater extent on, the overall condition and performance of special tax bonds. Special tax bonds are usually backed and payable through a single tax, or series of special taxes such as incremental property taxes. The failure of the tax levy to generate adequate revenue to pay the debt service on the bonds may cause the value of the bonds to decline. Adverse conditions and developments affecting a particular project may result in lower revenues to the issuer of the municipal securities, which may adversely affect the value of the Fund’s portfolio.

Transportation Bond Risk. The Fund will be sensitive to, and its performance may depend to a greater extent on, the overall condition and performance of transportation bonds. Transportation bonds may be issued to finance the construction of airports, toll roads, highways or other transit facilities. Airport bonds are dependent on the general stability of the airline industry and on the stability of a specific carrier who uses the airport as a hub. Air traffic generally follows broader economic trends and is also affected by the price and availability of fuel. Toll road bonds are also affected by the cost and availability of fuel as well as toll levels, the presence of competing roads and the general economic health of an area. Fuel costs and availability also affect other transportation related securities, as do the presence of alternate forms of transportation, such as public transportation. Municipal securities that are issued to finance a particular transportation project often depend solely on revenues from that project to make principal and interest payments. Adverse conditions and developments affecting a particular project may result in lower revenues to the issuer of the municipal securities.

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.

Sampling Risk. The Fund’s use of a representative sampling approach will result in its holding a smaller number of securities than are in the Intermediate Index. As a result, an adverse development respecting an issuer of securities held by the Fund could result in a greater decline in net asset value (“NAV”) than would be the case if the Fund held all of the securities in the Intermediate Index. Conversely, a positive development relating to an issuer of securities in the Intermediate Index that is not held by the Fund could cause the Fund to underperform the Intermediate Index. To the extent the assets in the Fund are smaller, these risks will be greater.

Index Tracking Risk. The Fund’s return may not match the return of the Intermediate Index for a number of reasons. For example, the Fund incurs a number of operating expenses, including taxes, not applicable to the Inter mediate 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 Inter mediate Index, which are not factored into the return of the Inter mediate Index. Transaction costs, including brokerage costs, will decrease the Fund’s 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 Inter mediate Index. Errors in the Intermediate Index data, Interme d iate Index computations and/or the construction of the In termediate Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Intermediate 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 Interm ediate Index provider's errors will be kept by the Fund and its shareholders and any losses or costs resulting from the Intermediate Index provider's errors will be borne by the Fund and its shareholders. When the Intermed iate Index is rebalanced and the Fund in turn rebalances its portfolio to attempt to increase the correlation between the Fund’s portfolio and the Intermediate Index, any transaction costs and market exposure arising from such portfolio rebalancing will be borne directly by the Fund and its shareholders. In addition, the Fund's use of a representative sampling approach may cause the fund to not be as well correlated with the return of the Intermediate Index as would be the case if the Fund purchased all of the securities in the Intermediate Index in the proportions in which they are represented in the Intermediate Index. Apart from scheduled rebalances, the Intermediate Index provider or its agents may carry out additional ad hoc rebalances to the Interm ediate Index. Therefore, errors and additional ad hoc rebalances carried out by the Intermediate Index provider or its agents to the Intermediate Index may increase the costs to and the tracking error risk of the Fund. The Fund’s performance may also deviate from the return of the Inter mediate Index due to certain listing standards of the Fund's listing exchange (the "Exchange") or legal restrictions or limitations (such as diversification requirements). The Fund may value certain of its investments and/or other assets based on fair value prices. 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. 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 Intermediate Index. In light of the factors discussed above, the Fund’s return may deviate significantly from the return of the Intermediate Index. Changes to the composition of the Intermediate Index in connection with a rebalancing or reconstitution of the Intermediate Index may cause the Fund to experience increased volatility, during which time the Fund’s index tracking risk may be heightened.

Tax Risk. There is no guarantee that the Fund’s income will be exempt from U.S. federal or state income taxes. Events occurring after the date of issuance of a municipal bond or after the Fund’s acquisition of a municipal bond may result in a determination that interest on that bond is includible in gross income for U.S. federal income tax purposes retroactively to its date of issuance. Such a determination may cause a portion of prior distributions by the Fund to its shareholders to be taxable to those shareholders in the year of receipt. Federal or state changes in income or alternative minimum tax rates or in the tax treatment of municipal bonds may make municipal bonds less attractive as investments and cause them to lose value.

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 bonds, 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 Intermediate 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 Intermediate Index provider to postpone a scheduled rebalance or reconstitution, which could cause the Intermediate 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 Intermediate 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]

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An investment in the Fund may lose money.

RIsk Not Insured [Text]

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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]

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PERFORMANCE

Performance Narrative [Text Block]

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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]

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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]

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www.vaneck.com

Performance Past Does Not Indicate Future [Text]

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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]

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Annual Total Returns (%)—Calendar Years

Bar Chart Closing [Text Block]

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The year-to-date total return as of June 30, 20 20 was 2.79 % .


Best Quarter:	4.26	%	3Q '11
Worst Quarter:	-5.27	%	4Q '10

Year to Date Return, Label

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year-to-date total annual return

Bar Chart, Year to Date Return, Date

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Jun. 30, 2020

Bar Chart, Year to Date Return

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2.79%

Highest Quarterly Return, Label

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Best Quarter:

Highest Quarterly Return, Date

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Sep. 30, 2011

Highest Quarterly Return

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4.26%

Lowest Quarterly Return, Label

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Worst Quarter:

Lowest Quarterly Return, Date

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Dec. 31, 2010

Lowest Quarterly Return

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(5.27%)

Performance Table Heading

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Average Annual Total Returns for the Periods Ended December 31, 2019

Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses or taxes)

Performance Table Uses Highest Federal Rate

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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

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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

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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]

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See “License Agreements and Disclaimers” for important information about the Fund’s benchmark index.

VanEck Vectors® Intermediate Muni ETF | Bloomberg Barclays AMT-Free Intermediate Continuous Municipal Index (reflects no deduction for fees, expenses or taxes)

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Bloomberg Barclays AMT-Free Intermediate Continuous Municipal Index (reflects no deduction for fees, expenses or taxes)

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8.83%

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4.09%

VanEck Vectors® Intermediate Muni ETF | Bloomberg Barclays US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)

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5.02%

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Bloomberg Barclays US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)

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8.72%

rr_AverageAnnualReturnYear05

3.05%

VanEck Vectors® Intermediate Muni ETF | VanEck Vectors AMT-Free Intermediate Municipal Index ETF

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3.75%

Shareholder Fees (fees paid directly from your investment)

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none

Management Fee

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0.24%

Other Expenses

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none

^[1]

Total Annual Fund Operating Expenses

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0.24%

^[1]

Expense Example, with Redemption, 1 Year

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$ 25

Expense Example, with Redemption, 3 Years

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Expense Example, with Redemption, 5 Years

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135

Expense Example, with Redemption, 10 Years

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$ 306

Annual Return 2010

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2.28%

Annual Return 2011

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12.77%

Annual Return 2012

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6.16%

Annual Return 2013

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(3.53%)

Annual Return 2014

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9.00%

Annual Return 2015

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3.67%

Annual Return 2016

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(0.58%)

Annual Return 2017

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6.21%

Annual Return 2018

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0.63%

Annual Return 2019

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8.22%

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VanEck Vector Intermediate Muni ETF (return before taxes)

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8.22%

rr_AverageAnnualReturnYear05

3.58%

VanEck Vectors® Intermediate Muni ETF | VanEck Vectors AMT-Free Intermediate Municipal Index ETF | After Taxes on Distributions

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4.38%

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VanEck Vectors Intermediate Muni ETF (return after taxes on distributions)

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8.22%

rr_AverageAnnualReturnYear05

3.58%

VanEck Vectors® Intermediate Muni ETF | VanEck Vectors AMT-Free Intermediate Municipal Index ETF | After Taxes on Distributions and Sale of Fund Shares

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4.37%

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VanEck Vectors Intermediate Muni ETF (return after taxes on distributions and sale of Fund Shares)

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5.83%

rr_AverageAnnualReturnYear05

3.28%