| Label | Element | Value | ||
|---|---|---|---|---|
| GMO Domestic Resilience ETF | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk/Return [Heading] | oef_RiskReturnHeading | Fund Summary – GMO Domestic Resilience ETF | ||
| Objective [Heading] | oef_ObjectiveHeading | Investment Objective | ||
| Objective, Primary [Text Block] | oef_ObjectivePrimaryTextBlock | The GMO Domestic Resilience ETF (the “Fund”) seeks total return. |
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| Expense Heading [Optional Text] | oef_ExpenseHeading | Fees and Expenses | ||
| Expense Narrative [Text Block] | oef_ExpenseNarrativeTextBlock | The table below describes the fees and expenses that you may pay if you buy, hold or sell shares of the Fund. 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) | ||
| Other Expenses, New Fund, Based on Estimates [Text] | oef_OtherExpensesNewFundBasedOnEstimates | Based on estimated amounts for the current fiscal year. | ||
| 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 or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: |
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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 buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher 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 above, affect the Fund’s performance. The Fund is new and does not yet have a portfolio turnover rate to disclose. |
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| Strategy [Heading] | oef_StrategyHeading | Principal Investment Strategies | ||
| Strategy Narrative [Text Block] | oef_StrategyNarrativeTextBlock | The Fund is an actively managed ETF that seeks to achieve its investment objective by investing the Fund’s assets primarily in equities of U.S. companies that GMO believes will benefit from the shift away from globalization and the anticipated acceleration of onshoring vital technologies and industries.
Under normal circumstances, the Fund invests directly and indirectly (e.g., through underlying funds or derivatives) at least 80% of its assets in companies tied economically to the United States (see “Name Policies”).
In selecting securities for the Fund, GMO uses a combination of investment methods, typically considering both (1) systematic factors, based on profitability, profit stability, leverage, and other publicly available financial information, and (2) judgmental factors, based on GMO’s assessment of future profitability, capital allocation, growth opportunities, and sustainability against competitive forces. GMO also may rely on valuation methodologies, such as discounted cash flow analysis and multiples of price to earnings, revenues, book values or other fundamental metrics. At times, the Fund may have substantial exposure to a single asset class, industry, sector and companies with similar market capitalizations. The Fund may invest in securities of companies of any market capitalization. The factors GMO considers and investment methods GMO uses can change over time.
The Fund also may invest in the GMO U.S. Treasury Fund, a mutual fund advised by GMO, in money market funds unaffiliated with GMO, and directly in the types of investments typically held by money market funds. |
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| Bar Chart and Performance Table [Heading] | oef_BarChartAndPerformanceTableHeading | Performance Information | ||
| Performance Narrative [Text Block] | oef_PerformanceNarrativeTextBlock | The Fund is new and therefore has no performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns and comparing the Fund’s performance to a broad measure of market performance. When available, updated performance information will be available on the Fund’s website at https://www.gmo.com/americas/investment-capabilities/etfs. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. |
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| Performance Information Illustrates Variability of Returns [Text] | oef_PerformanceInformationIllustratesVariabilityOfReturns | Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns and comparing the Fund’s performance to a broad measure of market performance. | ||
| Performance One Year or Less [Text] | oef_PerformanceOneYearOrLess | The Fund is new and therefore has no performance history. | ||
| Performance Availability Website Address [Text] | oef_PerformanceAvailabilityWebSiteAddress | https://www.gmo.com/americas/investment-capabilities/etfs | ||
| Performance Past Does Not Indicate Future [Text] | oef_PerformancePastDoesNotIndicateFuture | Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. | ||
| GMO Domestic Resilience ETF | Risk Lose Money [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Many factors can affect this value, and you may lose money by investing in the Fund or your investment in the Fund could underperform other investments. | ||
| GMO Domestic Resilience ETF | Risk Not Insured [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any government agency. | ||
| GMO Domestic Resilience ETF | Focused Investment Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Focused Investment Risk – Investments in countries, regions, asset classes, sectors, industries, currencies, or issuers that are subject to the same or similar risk factors and investments whose market prices are closely correlated are subject to higher overall risk than investments that are more diversified or whose market prices are not as closely correlated. | ||
| GMO Domestic Resilience ETF | Market Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Market Risk – Equities – The market price of an equity in the Fund’s portfolio may decline due to factors affecting the issuer or its industry or the economy and equity markets generally. If the Fund purchases an equity for less than its fundamental fair (or intrinsic) value as assessed by GMO, the Fund runs the risk that the market price of the equity will not appreciate or will decline, (for example, if GMO’s assessment proves to be incorrect or the market fails to recognize the equity’s intrinsic value). The Fund also may purchase equities that typically trade at higher multiples of current earnings than other securities, and the market prices of these equities often are more sensitive to changes in future earnings expectations and interest rates than the market prices of equities trading at lower multiples. Declines in stock market prices generally are likely to reduce the net asset value of the Fund’s shares. | ||
| GMO Domestic Resilience ETF | Management and Operational Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Management and Operational Risk – The Fund runs the risk that GMO’s investment techniques will fail to produce intended results. The Fund also runs the risk that GMO’s assessment of an investment, including a security’s fundamental fair (or intrinsic) value, is wrong or that deficiencies in GMO’s or another service provider’s internal systems or controls will cause losses for the Fund or impair Fund operations. | ||
| GMO Domestic Resilience ETF | Market Disruption and Geopolitical Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Market Disruption and Geopolitical Risk – Geopolitical and other events (e.g., wars, pandemics, sanctions, terrorism, diplomatic tensions, dramatic changes in regulatory and/or foreign policy, cyberattacks, and rapid technological developments such as artificial intelligence) often disrupt securities markets and adversely affect the general economy or particular economies and markets. Those events, as well as other changes in non-U.S. and U.S. economic and political conditions, could exacerbate other risks or otherwise reduce the value of the Fund’s investments. | ||
| GMO Domestic Resilience ETF | ETF Risks [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | ETF Risks – The Fund is an ETF and, as a result of this structure, is exposed to the following risks: oCosts of Buying or Selling Shares Risk. Due to the costs of buying or selling Fund shares, including brokerage commissions imposed by brokers and the variance in bid-ask spreads, frequent trading of Fund shares may significantly reduce investment results and an investment in Fund shares may not be advisable for investors who anticipate regularly making small investments. oLimited Authorized Participants, Market Makers and Liquidity Providers Risk. Because the Fund is an ETF, typically only a limited number of institutional investors (known as “Authorized Participants”) are authorized to purchase and redeem shares directly from the Fund. Retail investors cannot transact directly with the Fund. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace to transact in Fund shares, there may be demand for Fund shares thereby increasing the market price above NAV, or lack of demand, which may decrease the market price below NAV, or in stressed market conditions, the market for Fund shares may become less liquid in response to deteriorating liquidity in the markets for the Fund's underlying portfolio holdings. As a result of these considerations, Fund shares may trade at a material premium or discount to net asset value (“NAV”) or these factors may, in turn, lead to wider spreads between the bid and ask price of Fund shares. In addition, the Fund may face possible delisting if: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. oTrading Risk. Shares of the Fund may trade on the NYSE Arca, Inc. (the “Exchange”) above (premium) or below (discount) their NAV. In stressed market conditions, the market for Fund shares may become less liquid in response to deteriorating liquidity in the markets for the Fund’s underlying portfolio holdings, which may increase the variance between the market price of the Fund shares and the value of its underlying holdings. This can be reflected as a spread between the bid and ask prices for the Fund shares quoted during the day or a premium or discount in the closing price from the Fund’s NAV. In addition, although the Fund’s shares are currently listed on the Exchange, there can be no assurance that an active trading market for Fund shares will develop or be maintained. Trading in Fund shares may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares of the Fund inadvisable. oCash Transactions Risk. The Fund may effect some of its creations and redemptions for cash, rather than in-kind securities. As a result, the Fund may have to sell portfolio securities at inopportune times in order to obtain the cash needed to meet redemption orders. This may cause the Fund to sell a security and recognize a capital gain or loss that might not have been incurred if it had made a redemption in-kind. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV. In effecting creations and redemptions in exchange for cash, the Fund may incur certain costs, including brokerage costs in connection with investing cash received and may recognize capital gains in connection with cash redemptions, unlike an ETF that effects creations and redemptions only in-kind. In addition, costs could be imposed on the Fund which would have the effect of decreasing the Fund’s NAV to the extent the costs are not offset by a transaction fee payable by an Authorized Participant. | ||
| GMO Domestic Resilience ETF | Illiquidity Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Illiquidity Risk – Low trading volume, lack of a market maker, large position size, or legal restrictions increase the risk that the Fund or an underlying fund is limited or prevented from selling particular securities or closing derivative positions at desirable prices at a particular time or at all. | ||
| GMO Domestic Resilience ETF | Smaller Company Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | Smaller Company Risk – Smaller companies may have limited product lines, markets, or financial resources, lack the competitive strength of larger companies, have less experienced managers or depend on a few key employees. The securities of companies with smaller market capitalizations often are less widely held and trade less frequently and in lesser quantities, and their market prices often fluctuate more, than the securities of companies with larger market capitalizations. | ||
| GMO Domestic Resilience ETF | New/Smaller Fund Risk [Member] | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Risk [Text Block] | oef_RiskTextBlock | New/Smaller Fund Risk – A new or smaller fund is subject to the risk that its performance may not represent how the fund is expected to or may perform in the long term. In addition, new funds have limited operating histories for investors to evaluate and new and smaller funds may not attract sufficient assets to achieve investment and trading efficiencies. There can be no assurance that the Fund will achieve an economically viable size, in which case it could ultimately liquidate. | ||
| GMO Domestic Resilience ETF | GMO Domestic Resilience ETF | ||||
| Prospectus [Line Items] | oef_ProspectusLineItems | |||
| Management Fees (as a percentage of Assets) | oef_ManagementFeesOverAssets | 0.50% | ||
| Distribution and Service (12b-1) Fees | oef_DistributionAndService12b1FeesOverAssets | 0.00% | ||
| Other Expenses (as a percentage of Assets): | oef_OtherExpensesOverAssets | 0.00% | [1] | |
| Expenses (as a percentage of Assets) | oef_ExpensesOverAssets | 0.50% | ||
| Expense Example, with Redemption, 1 Year | oef_ExpenseExampleYear01 | $ 51 | ||
| Expense Example, with Redemption, 3 Years | oef_ExpenseExampleYear03 | 160 | ||
| Expense Example, No Redemption, 1 Year | oef_ExpenseExampleNoRedemptionYear01 | 51 | ||
| Expense Example, No Redemption, 3 Years | oef_ExpenseExampleNoRedemptionYear03 | $ 160 | ||
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