| Label | Element | Value | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Invesco Water Resources ETF | Invesco Water Resources ETF | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk/Return [Heading] | oef_RiskReturnHeading | Summary Information | ||||||||||||
| Objective [Heading] | oef_ObjectiveHeading | Investment Objective | ||||||||||||
| Objective, Primary [Text Block] | oef_ObjectivePrimaryTextBlock | The Invesco Water Resources ETF (the “Fund”) seeks to track the investment results (before fees and expenses) of the Nasdaq OMX US WaterTM Index (the “Underlying Index”).
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| Expense Heading [Optional Text] | oef_ExpenseHeading | Fund Fees and Expenses | ||||||||||||
| Expense Narrative [Text Block] | oef_ExpenseNarrativeTextBlock | This table describes 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 table and example below.
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| Operating Expenses Caption [Optional Text] | oef_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||
| Expense Example [Heading] | oef_ExpenseExampleHeading | Example. | ||||||||||||
| Expense Example Narrative [Text Block] | oef_ExpenseExampleNarrativeTextBlock | This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.
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. This example does not include brokerage commissions that investors may pay to buy and sell Shares. Although your actual costs may be higher or lower, your costs, based on these assumptions, would be:
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| Portfolio Turnover [Heading] | oef_PortfolioTurnoverHeading | Portfolio Turnover. | ||||||||||||
| Portfolio Turnover [Text Block] | oef_PortfolioTurnoverTextBlock | The Fund pays transaction costs, such as commissions, when it purchases and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate will cause the Fund to incur additional transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in Total 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 34% of the average value of its portfolio.
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| Portfolio Turnover, Rate | oef_PortfolioTurnoverRate | 34.00% | ||||||||||||
| Strategy [Heading] | oef_StrategyHeading | Principal Investment Strategies | ||||||||||||
| Strategy Narrative [Text Block] | oef_StrategyNarrativeTextBlock | The Fund is an index fund that seeks to track the investment results of the Underlying Index.
Strictly in accordance with its guidelines and mandated procedures, Nasdaq, Inc. (“Nasdaq” or the “Index Provider”) compiles the Underlying Index, which seeks to track the performance of companies that are listed on the New York Stock Exchange (“NYSE”), NYSE American, Cboe Exchange (“Cboe”) or The Nasdaq Stock Market®, that create products that conserve and purify water for homes, businesses and industries. The Underlying Index may include common stocks, ordinary shares, American depositary receipts (“ADRs”), shares of beneficial interest and tracking stocks.
As of June 30, 2026, the Underlying Index was comprised of 40 constituents with market capitalizations ranging from $465 million to $78.4 billion. The Fund employs a “full replication” methodology in seeking to track the Underlying Index, meaning that the Fund generally invests in all of the securities comprising the Underlying Index in proportion to their weightings in the Underlying Index.
The Fund is “non-diversified” and therefore is not required to meet certain diversification requirements under the Investment Company Act of 1940, as amended (the “1940 Act”).
In accordance with Rule 35d-1 under the 1940 Act, the Fund has adopted a policy to invest, under normal circumstances, at least 80% of the value of its net assets, plus the amount of any borrowings for investment purposes, in securities of companies engaged in the water industry, and in derivatives and other investments that have economic characteristics similar to securities of companies engaged in the water industry (the “80% investment policy”). For purposes of the 80% investment policy, the Fund considers the components of the Underlying Index to be securities of companies engaged in the water industry.
Concentration Policy. The Fund will concentrate its investments (i.e., invest 25% or more of the value of its total assets) in securities of issuers in any one industry or group of industries only to the extent that the Underlying Index reflects a concentration in that industry or group of industries. The Fund will not otherwise concentrate its investments in securities of issuers in any one industry or group of industries. As of April 30, 2026, the Fund had significant exposure to the water industry and the industrials sector. The Fund’s portfolio holdings, and the extent to which it concentrates its investments, are likely to change over time.
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| Strategy Portfolio Concentration [Text] | oef_StrategyPortfolioConcentration | The Fund will concentrate its investments (i.e., invest 25% or more of the value of its total assets) in securities of issuers in any one industry or group of industries only to the extent that the Underlying Index reflects a concentration in that industry or group of industries. The Fund will not otherwise concentrate its investments in securities of issuers in any one industry or group of industries. As of April 30, 2026, the Fund had significant exposure to the water industry and the industrials sector. The Fund’s portfolio holdings, and the extent to which it concentrates its investments, are likely to change over time. | ||||||||||||
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | fnd_NmRule35d1TermDfnSmryTextBlock | Strictly in accordance with its guidelines and mandated procedures, Nasdaq, Inc. ("Nasdaq" or the "Index Provider") compiles the Underlying Index, which seeks to track the performance of companies that are listed on the New York Stock Exchange (“NYSE”), NYSE American, Cboe Exchange ("Cboe") or The Nasdaq Stock Market®, that create products that conserve and purify water for homes, businesses and industries. For purposes of the 80% investment policy, the Fund considers the components of the Underlying Index to be securities of companies engaged in the water industry. | ||||||||||||
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | fnd_NmRule35d1TermSlctnCritSmryTextBlock | The Fund is an index fund that seeks to track the investment results of the Underlying Index. The Fund employs a "full replication" methodology in seeking to track the Underlying Index, meaning that the Fund generally invests in all of the securities comprising the Underlying Index in proportion to their weightings in the Underlying Index. | ||||||||||||
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | fnd_NmRule35d1EightyPctInvstmntPlcyTextBlock | In accordance with Rule 35d-1 under the 1940 Act, the Fund has adopted a policy to invest, under normal circumstances, at least 80% of the value of its net assets, plus the amount of any borrowings for investment purposes, in securities of companies engaged in the water industry, and in derivatives and other investments that have economic characteristics similar to securities of companies engaged in the water industry (the “80% investment policy”). | ||||||||||||
| Bar Chart and Performance Table [Heading] | oef_BarChartAndPerformanceTableHeading | Performance | ||||||||||||
| Performance Narrative [Text Block] | oef_PerformanceNarrativeTextBlock | The bar chart below shows how the Fund has performed. The table below the bar chart shows the Fund’s average annual total returns (before and after taxes). The bar chart and table provide an indication of the risks of investing in the Fund by showing how the Fund’s total returns have varied from year to year and by showing how the Fund’s average annual total returns compared with a broad measure of market performance and an additional index with characteristics relevant to the Fund. The Fund's performance reflects fee waivers, if any, absent which performance would have been lower. Although the information shown in the bar chart and the table gives you some idea of the risks involved in investing in the Fund, 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.invesco.com/ETFs.
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| Performance Information Illustrates Variability of Returns [Text] | oef_PerformanceInformationIllustratesVariabilityOfReturns | The bar chart and table provide an indication of the risks of investing in the Fund by showing how the Fund’s total returns have varied from year to year and by showing how the Fund’s average annual total returns compared with a broad measure of market performance and an additional index with characteristics relevant to the Fund. | ||||||||||||
| Performance Availability Website Address [Text] | oef_PerformanceAvailabilityWebSiteAddress | www.invesco.com/ETFs | ||||||||||||
| Performance Past Does Not Indicate Future [Text] | oef_PerformancePastDoesNotIndicateFuture | Although the information shown in the bar chart and the table gives you some idea of the risks involved in investing in the Fund, 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] | oef_BarChartHeading | Annual Total Returns—Calendar Years | ||||||||||||
| Bar Chart Closing [Text Block] | oef_BarChartClosingTextBlock |
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| Year to Date Return, Label [Optional Text] | oef_YearToDateReturnLabel | Year-to-date | ||||||||||||
| Bar Chart, Year to Date Return, Date | oef_BarChartYearToDateReturnDate | Jun. 30, 2026 | ||||||||||||
| Bar Chart, Year to Date Return | oef_BarChartYearToDateReturn | (1.46%) | ||||||||||||
| Highest Quarterly Return, Label [Optional Text] | oef_HighestQuarterlyReturnLabel | Best Quarter | ||||||||||||
| Highest Quarterly Return, Date | oef_BarChartHighestQuarterlyReturnDate | Mar. 31, 2019 | ||||||||||||
| Highest Quarterly Return | oef_BarChartHighestQuarterlyReturn | 20.29% | ||||||||||||
| Lowest Quarterly Return, Label [Optional Text] | oef_LowestQuarterlyReturnLabel | Worst Quarter | ||||||||||||
| Lowest Quarterly Return, Date | oef_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | ||||||||||||
| Lowest Quarterly Return | oef_BarChartLowestQuarterlyReturn | (18.65%) | ||||||||||||
| Performance Table Heading | oef_PerformanceTableHeading | Average Annual Total Returns (for the periods ended December 31, 2025) | ||||||||||||
| Index No Deduction for Fees, Expenses, or Taxes [Text] | oef_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees, expenses or taxes) | ||||||||||||
| Performance Table Uses Highest Federal Rate | oef_PerformanceTableUsesHighestFederalRate | After-tax returns in the above table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. | ||||||||||||
| Performance Table Not Relevant to Tax Deferred | oef_PerformanceTableNotRelevantToTaxDeferred | Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts. | ||||||||||||
| Performance Table Closing [Text Block] | oef_PerformanceTableClosingTextBlock | After-tax returns in the above table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold Shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Risk Lose Money [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | The Shares will change in value, and you could lose money by investing in the Fund. | ||||||||||||
| Invesco Water Resources ETF | Invesco Water Resources ETF | Market Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Market Risk. Securities in the Underlying Index are subject to market fluctuations. You should anticipate that the value of the Shares will decline, more or less, in correlation with any decline in value of the securities in the Underlying Index. Additionally, natural or environmental disasters, widespread disease or other public health issues, war, military conflicts, acts of terrorism, economic crises or other events could result in increased premiums or discounts to the Fund’s net asset value (“NAV”). Certain changes in the U.S. economy in particular, such as when the U.S. economy weakens or when its financial markets decline, may have a material adverse effect on global financial markets as a whole, and on the securities to which the Underlying Index has exposure. Increasingly strained relations between the U.S. and foreign countries, including as a result of economic sanctions and tariffs, may also adversely affect U.S. issuers, as well as non-U.S. issuers.
During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Underlying Index will rise in value.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Index Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock |
Index Risk. Unlike many investment companies, the Fund does not utilize an investing strategy that seeks returns in excess of its Underlying Index. Therefore, the Fund would not necessarily buy or sell a security unless that security is added to or removed from, respectively, its Underlying Index, even if that security generally is underperforming. Additionally, the Fund generally rebalances its portfolio in accordance with its Underlying Index, and, therefore, any changes to its Underlying Index’s rebalance schedule will typically result in corresponding changes to the Fund’s rebalance schedule.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Thematic Investing Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Thematic Investing Risk. The Fund relies on the Index Provider for the identification of securities for inclusion in the Underlying Index that provide exposure to the environmental themes of water conservation and purification, as set forth in the Underlying Index’s methodology. The Fund’s performance may suffer if such securities are not correctly identified. Performance may also suffer if the securities included in the Underlying Index do not benefit from the development of such themes. Further, there is a risk that information used by the Index Provider to evaluate thematic factors may not be readily available, complete or accurate, which could negatively impact the Index Provider’s ability to apply its standards when compiling the Underlying Index, and which may negatively impact the Fund’s performance. Performance may also be impacted by the inclusion of non-theme-relevant exposures in the Underlying Index.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Industry Concentration Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Industry Concentration Risk. In following its methodology, the Underlying Index will be concentrated to a significant degree in securities of issuers operating in a single industry or industry group. As a result, the Fund will also concentrate its investments in such industries or industry groups to approximately the same extent. By concentrating its investments in an industry or industry group, the Fund faces more risks than if it were diversified broadly over numerous industries or industry groups. Such industry-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 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 an industry. In addition, at times, such industry or industry group may be out of favor and underperform other industries or the market as a whole.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Water Industry Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Water Industry Risk. Companies operating in the water industry can be significantly affected by the availability of water, the level of rainfall and the occurrence of other climatic and environmental events, changes in water consumption and water conservation. Companies in the water industry are subject to environmental considerations, taxes, government regulation, institutional change, and price and supply fluctuations. Furthermore, because the Fund will focus its investments in the water industry, economic downturns and global and domestic events affecting the water industry will have a greater impact on the Fund than would be the case if the Fund’s investments were more diversified. These events may include inflation, an increase in the cost of raw materials and other operating costs, competition from new entrants into the sector, the success of exploration projects, changes in commodity prices, an increase in interest rates, technological advances, changes in consumer sentiment and spending and changes in government spending.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Industrials Sector Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Industrials Sector Risk. Changes in government regulation, world events and economic conditions may adversely affect companies in the industrials sector. In addition, these companies are at risk for environmental and product liability damage claims. Industrial companies also may be adversely affected by commodity price volatility, changes in exchange rates, imposition of import controls, trade disputes, supply chain and distribution disruptions, cyberattacks, increased competition, depletion of resources, obsolescence due to rapid technological developments and frequent new product introduction, consolidation, excess capacity, consumer preferences and spending trends, overall capital spending levels, business cycle fluctuations, labor relations and changes in the supply of and demand for their specific products or services or for industrials sector products in general.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Risk Nondiversified Status [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Non-Diversified Fund Risk. The Fund is non-diversified and can invest a greater portion of its assets in the obligations or securities of a small number of issuers or any single issuer than a diversified fund can. As a result, changes in the market value of a single investment could cause greater fluctuations in Share price than would occur in a diversified fund. This may increase the Fund's volatility and cause the performance of a relatively small number of issuers to have a greater impact on the Fund's performance.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Equity Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Equity Risk. Equity risk is the risk that the value of equity securities, including common stocks, may fall due to both changes in general economic conditions that impact the market as a whole, as well as factors that directly relate to a specific company or its industry. Such general economic conditions include changes in interest rates, periods of market turbulence or instability, or general and prolonged periods of economic decline and cyclical change. It is possible that a drop in the stock market may depress the price of most or all of the common stocks that the Fund holds. In addition, equity risk includes the risk that investor sentiment toward one or more industries will become negative, resulting in those investors exiting their investments in those industries, which could cause a reduction in the value of companies in those industries more broadly. Equity risk also includes the risk of large-capitalization companies, which may adapt more slowly to new competitive challenges or may be more mature and subject to more limited growth potential, and consequently may underperform other segments of the equity market or the market as a whole. The value of a company's common stock may fall solely because of factors, such as an increase in production costs, that negatively impact other companies in the same region, industry or sector of the market. A company's common stock also may decline significantly in price over a short period of time due to factors specific to that company, including decisions made by its management or lower demand for the company's products or services. For example, an adverse event, such as an unfavorable earnings report or the failure to make anticipated dividend payments, may depress the value of common stock.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Small- and Mid-Capitalization Companies Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Small- and Mid-Capitalization Companies Risk. Investing in securities of small- and mid-capitalization companies involves greater risk than customarily is associated with investing in larger, more established companies. Stocks of small- and mid-capitalization companies tend to be more vulnerable to changing market conditions, may have little or no operating history or track record of success, and may have more limited product lines and markets, less experienced management and fewer financial resources than larger companies. These companies’ securities may be more volatile and less liquid than those of more established companies. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Smaller companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of smaller companies may be subject to wider price fluctuations and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Since small- and mid-capitalization companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. It may take a substantial period of time to realize a gain on an investment in a small- or mid-capitalization company, if any gain is realized at all.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Foreign Investment Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Foreign Investment Risk. Investments in the securities of non-U.S. issuers involve risks beyond those associated with investments in U.S. securities. Foreign securities may have relatively low market liquidity, greater market volatility, decreased publicly available information and less reliable financial information about issuers, and inconsistent and potentially less stringent accounting, auditing and financial reporting requirements and standards of practice, including recordkeeping standards, comparable to those applicable to domestic issuers. Foreign securities also are subject to the risks of possible seizure, expropriation, nationalization, political or social instability, changes in economic or taxation policies or other adverse political or economic developments (in which the Fund could lose its entire investment in a certain market) and the difficulty of enforcing obligations in other countries, including the possible adoption of foreign governmental restrictions such as exchange controls. Investments in foreign securities also may be subject to dividend withholding or confiscatory taxes, currency blockage and/or transfer restrictions and higher transactional costs. To the extent the Fund invests in securities denominated in foreign currencies, fluctuations in the value of the U.S. dollar relative to the values of other currencies may adversely affect investments in foreign securities and may negatively impact the Fund’s returns, unless the Fund has hedged its foreign currency exposure. Currency exchange rates may fluctuate significantly over short periods of time. Currency hedging strategies, if used, may not always be successful. Foreign companies generally may be subject to less stringent regulations than U.S. companies, including financial reporting requirements and auditing and accounting controls, and may therefore be more susceptible to fraud or corruption. There may be less public information
available about foreign companies than U.S. companies, making it difficult to evaluate those foreign companies.
From time to time, certain companies in which the Fund invests may operate in, or have dealings with, countries subject to sanctions or embargoes imposed by the U.S. government and the United Nations and/or in countries the U.S. government identified as state sponsors of terrorism. One or more of these companies may be subject to constraints under U.S. law or regulations that could negatively affect the company’s performance. Additionally, one or more of these companies could suffer damage to its reputation if the market identifies it as a company that invests or deals with countries that the U.S. government identifies as state sponsors of terrorism or is subject to sanctions.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | ADR Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | ADR Risk. ADRs are certificates that evidence ownership of shares of a foreign issuer and are alternatives to purchasing the underlying foreign securities directly in their national markets and currencies. ADRs may be subject to certain of the risks associated with direct investments in the securities of foreign companies, such as currency, political, economic and market risks, because their values depend on the performance of the non-dollar denominated underlying foreign securities. Moreover, ADRs may not track the price of the underlying foreign securities on which they are based, and their value may change materially at times when U.S. markets are not open for trading.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Issuer-Specific Changes Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Issuer-Specific Changes Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform worse than the market as a whole, causing the value of the Fund’s securities to decline.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Valuation Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Valuation Risk. The price the Fund could receive upon the sale of a portfolio investment may differ from the Fund’s valuation of the investment, particularly for investments that trade in thin or volatile markets or that are valued using a fair valuation methodology. Fixed income securities are often valued assuming orderly transactions of institutional round lot size, but the Fund may hold or transact in the same securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots. Financial information related to securities of non-U.S. issuers may be less reliable than information related to securities of U.S. issuers, which may make it difficult to obtain a current price for a non-U.S. security held by the Fund. When market quotations are not readily available or deemed non-representative of fair value for Fund investments, those investments are fair valued by the Adviser. There are multiple methods that can be used to fair value a portfolio investment and such methods may involve more subjectivity than the use of market quotations. The value established for an investment through fair valuation may be different from what would be produced if the investment had been valued using market quotations. In addition, there is no assurance that the Fund could sell a portfolio investment at any time for the value ascribed to it for purposes of calculating the Fund’s net asset value, and it is possible that the Fund could incur a loss because an investment is sold at a discount to its ascribed value. The ability to value investments may also be impacted by technological issues and/or errors by pricing services or other third-party service providers.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Valuation Time Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Valuation Time Risk. Because foreign exchanges may be open on days when the Fund does not price its Shares, the value of the non-U.S. securities in the Fund’s portfolio may change on days when investors will not be able to purchase or sell the Fund’s Shares. As a result, trading spreads and the resulting premium or discount on the Fund’s Shares may widen, and, therefore, increase the difference between the market price of the Fund’s Shares and the NAV of such Shares.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Non-Correlation Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Non-Correlation 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 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.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Authorized Participant Concentration Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Authorized Participant Concentration Risk. Only authorized participants (“APs”) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as APs and such APs have no obligation to submit creation or redemption orders. Consequently, there is no assurance that APs will establish or maintain an active trading market for the Shares. This risk may be heightened to the extent that securities held by the Fund are traded outside a collateralized settlement system. In that case, APs may be required to post collateral on certain trades on an agency basis (i.e., on behalf of other market participants), which only a limited number of APs may be able to do. In addition, to the extent that APs exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other AP is able to step forward to create or redeem Creation Units (as defined below), this may result in a significantly diminished trading market for Shares, and Shares may be more likely to trade at a premium or discount to the Fund's NAV and to face trading halts and/or delisting. Additionally, to the extent that the Fund holds non-U.S. securities, such securities may have lower trading volumes or could experience extended market closures or trading halts. To the extent that the Fund invests in non-U.S. securities, it may face increased risks that APs may not be able to effectively create or redeem Creation Units, or that the Shares may be halted and/or delisted.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Market Trading Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock |
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for the Shares, losses from trading in secondary markets, periods of high volatility, and disruption in the creation/redemption process of the Fund. In stressed market conditions, the market for Shares may become less liquid in response to deteriorating liquidity in the markets for the Fund’s portfolio holdings, which may cause a variance in the market price of Shares and their underlying NAV. In addition, an exchange or market may issue trading halts on specific securities or financial instruments. As a result, the ability to trade certain securities or financial instruments may be restricted, which may disrupt the Fund’s creation/redemption process, potentially affect the price at which Shares trade in the secondary market, and/or result in the Fund being unable to trade certain securities or financial instruments at all. In these 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. Any of these factors may lead to the Shares trading at a premium or discount to the Fund's NAV.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Operational Risk [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Operational Risk. The Fund is exposed to operational risks 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 its investment adviser, Invesco Capital Management LLC (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 to address these risks.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Shares May Trade at Prices Different than NAV [Member] | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | Shares May Trade at Prices Different than NAV. Shares trade on a stock exchange at prices at, above or below the Fund’s most recent NAV. The Fund’s NAV is calculated at the end of each business day and fluctuates with changes in the market value of the Fund’s holdings. The trading price of the Shares fluctuates continuously throughout trading hours on the exchange, based on both the relative market supply of, and demand for, the Shares and the underlying value of the Fund’s portfolio holdings. As a result, the trading prices of the Shares may deviate from the Fund’s NAV. ANY OF THESE FACTORS, AMONG OTHERS, MAY LEAD TO THE SHARES TRADING AT A PREMIUM OR DISCOUNT TO NAV.
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| Invesco Water Resources ETF | Invesco Water Resources ETF | Invesco Water Resources ETF | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Management Fees (as a percentage of Assets) | oef_ManagementFeesOverAssets | 0.50% | ||||||||||||
| Other Expenses (as a percentage of Assets): | oef_OtherExpensesOverAssets | 0.09% | ||||||||||||
| Expenses (as a percentage of Assets) | oef_ExpensesOverAssets | 0.59% | ||||||||||||
| Expense Example, with Redemption, 1 Year | oef_ExpenseExampleYear01 | $ 60 | ||||||||||||
| Expense Example, with Redemption, 3 Years | oef_ExpenseExampleYear03 | 189 | ||||||||||||
| Expense Example, with Redemption, 5 Years | oef_ExpenseExampleYear05 | 329 | ||||||||||||
| Expense Example, with Redemption, 10 Years | oef_ExpenseExampleYear10 | $ 738 | ||||||||||||
| Invesco Water Resources ETF | Nasdaq OMX US WaterTM Index (reflects no deduction for fees, expenses or taxes) | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 8.18% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 9.93% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 13.75% | ||||||||||||
| Invesco Water Resources ETF | S&P 500® Index (reflects no deduction for fees, expenses or taxes) | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 17.88% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 14.42% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 14.82% | ||||||||||||
| Invesco Water Resources ETF | Invesco Water Resources ETF | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 13.86% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 23.56% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (6.26%) | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 37.46% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 20.82% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 31.26% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (14.88%) | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 18.92% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 8.60% | ||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 7.52% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 7.52% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 9.18% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 13.01% | ||||||||||||
| Performance Inception Date | oef_PerfInceptionDate | Dec. 06, 2005 | ||||||||||||
| Invesco Water Resources ETF | Invesco Water Resources ETF | After Taxes on Distributions | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 7.37% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 9.06% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 12.89% | ||||||||||||
| Invesco Water Resources ETF | Invesco Water Resources ETF | After Taxes on Distributions and Sales | ||||||||||||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 4.54% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 7.25% | ||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 10.91% |