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GMO U.S. Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading GMO U.S. EQUITY FUND
Objective [Heading] rr_ObjectiveHeading Investment objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
High total return.
Expense [Heading] rr_ExpenseHeading Fees and expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
The table below describes the fees and expenses that you may bear for each class of shares if you buy, hold, and 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.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund operating expenses(expenses that you bear each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Jun. 30, 2023
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities. A higher portfolio turnover rate may result in higher transaction costs and, for holders of Fund shares subject to U.S. taxes, higher income taxes. These transaction costs, which are not reflected in Annual Fund operating expenses or in the Example, affect the Fund’s performance. During its fiscal year ended February 28, 2022, the Fund’s portfolio turnover rate (excluding short-term investments) was 115% of the average value of its portfolio securities. That portfolio turnover rate includes investments in U.S. Treasury Fund, which the Fund uses as a short-term investment vehicle for cash management. The Fund’s portfolio turnover rate during its fiscal year ended February 28, 2022, excluding transactions in U.S. Treasury Fund and other short-term investments, was 94% of the average value of its portfolio securities.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 115.00%
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, regardless of whether or not you redeem your shares at the end of such periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same as those shown in the table. The one year amounts shown reflect the expense reimbursement and waiver noted in the expense table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal investment strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
GMO seeks to achieve the Fund’s investment objective by investing the Fund’s assets primarily in U.S. equity markets. GMO selects the securities the Fund buys and sells based on its evaluation of companies’ published financial information, securities’ prices, equity and other markets (e.g., bond and currency), the overall global economy, and governmental policies. GMO may also consider ESG (environmental, social and governance) criteria.
In selecting securities for the Fund, GMO’s quantitative investment process uses a combination of investment methods to identify securities GMO believes have positive return potential relative to other securities tied economically to U.S. equity markets. Some of these methods evaluate individual companies or groups of companies based on the ratio of their security price to historical financial information and forecasted financial information, such as return on invested capital, profitability, cash flow and earnings, and a comparison of these ratios to current and historical industry, market or company averages. Other methods focus on patterns of information, such as price movement or volatility of an asset class, security, or market. In constructing the Fund’s portfolio, GMO considers a number of factors, including position size, sector and industry exposure, market capitalization, liquidity, and transaction costs. Among other ESG criteria, GMO seeks to avoid investing the Fund’s assets in companies engaged in the manufacture, supply, or distribution of cluster munitions, as well as companies primarily involved in the mining and production of coal and coal-related products used in the generation of energy. At times, the Fund may have substantial exposure to a single asset class, industry, sector or 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.
As an alternative to investing directly in equities, the Fund may invest in exchange-traded and over-the-counter (OTC) derivatives and exchange-traded funds (ETFs). The Fund also may invest in derivatives and ETFs in an attempt to obtain or adjust elements of its long or short investment exposure and as a substitute for securities lending. Derivatives used may include futures, options, and swap contracts. In addition, the Fund may lend its portfolio securities.
Under normal circumstances, the Fund invests directly and indirectly (e.g., through underlying funds or derivatives) at least 80% of its assets in equities tied economically to the United States (see “Name Policies”).
The Fund also may invest in U.S. Treasury Fund, in money market funds unaffiliated with GMO, and directly in the types of investments typically held by money market funds.
Risk [Heading] rr_RiskHeading Principal risks of investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
The value of the Fund’s shares changes with the value of the Fund’s investments. Many factors can affect this value, and you may lose money by investing in the Fund. The principal risks of investing in the Fund are summarized below. For a more complete discussion of these risks, see “Additional Information about the Funds’ Investment Strategies, Risks, and Expenses” and “Description of Principal Risks.”
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Market Risk – Equities – The market price of an equity 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 and GMO’s assessment proves to be incorrect, the Fund runs the risk that the market price of the equity will not appreciate or will decline. 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 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.
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Management and Operational Risk – The Fund runs the risk that GMO’s investment techniques will fail to produce desired results. GMO uses quantitative models as part of its investment process. GMO’s models may not accurately predict future market movements. In addition, GMO’s models rely on assumptions and data that are subject to limitations (e.g., inaccuracies, staleness) that could adversely affect their predictive value. 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.
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Focused Investment Risk – Investments focused in asset classes, sectors, industries, 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.
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Illiquidity Risk – Low trading volume, lack of a market maker, large position size, or legal restrictions may limit or prevent the Fund or an underlying fund from selling particular securities or closing derivative positions at desirable prices.
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Derivatives and Short Sales Risk – The use of derivatives involves the risk that their value may not change as expected relative to changes in the value of the underlying assets, pools of assets, rates, currencies or indices. Derivatives also present other risks, including market risk, illiquidity risk, currency risk, credit risk, and counterparty risk. The market price of an option is affected by many factors, including changes in the market prices or dividend rates of underlying securities (or in the case of indices, the securities in such indices); the time remaining before expiration; changes in interest rates or exchange rates; and changes in the actual or perceived volatility of the relevant index or underlying securities. The Fund may create short investment exposure by selling securities short or by taking a derivative position in which the value of the derivative moves in the opposite direction from the price of an underlying asset, pool of assets, rate, currency or index. The risks of loss associated with derivatives that provide short investment exposure and short sales of securities are theoretically unlimited.
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Counterparty Risk – The Fund runs the risk that the counterparty to a derivatives contract, a clearing member used by the Fund to hold a cleared derivatives contract, or a borrower of the Fund’s securities is unable or unwilling to make timely settlement payments, return the Fund’s collateral or otherwise honor its obligations.
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Leveraging Risk – The use of derivatives, short sales and securities lending can create leverage. Leverage increases the Fund’s losses when the value of its investments (including derivatives) declines. In addition, the Fund’s portfolio will be leveraged if it exercises its right to delay payment on a redemption, and losses will result if the value of the Fund’s assets declines between the time a redemption request is deemed to be received by the Fund and the time the Fund liquidates assets to meet that request.
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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.
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Market Disruption and Geopolitical Risk – Geopolitical and other events (e.g., wars, pandemics, sanctions, terrorism) may disrupt securities markets and adversely affect particular economies and markets as well as global 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.
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Large Shareholder Risk – To the extent that a large number of shares of the Fund is held by a single shareholder (e.g., an institutional investor or another GMO Fund) or a group of shareholders with a common investment strategy (e.g., GMO asset allocation accounts), the Fund is subject to the risk that a redemption by those shareholders of all or a large portion of their Fund shares will require the Fund to sell securities at disadvantageous prices, disrupt the Fund’s operations, or force the Fund’s liquidation.
Risk Lose Money [Text] rr_RiskLoseMoney Many factors can affect this value, and you may lose money by investing in the Fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s annual total returns from year to year for the periods indicated and by comparing the Fund’s average annual total returns for different calendar periods with those of two broad-based indices. Share classes not shown would have substantially similar annual returns to those below because all share classes invest in the same portfolio of securities. Annual returns vary among share classes to the extent that they bear different expenses. Share classes that bear higher expenses than the share classes shown below would have lower returns. After-tax returns 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 your tax situation and may differ from those shown. After-tax returns shown are not relevant if you are tax-exempt or if you hold your Fund shares through tax-advantaged arrangements (such as a 401(k) plan or individual retirement account). After-tax returns are shown for Class III shares only; after-tax returns for other classes will vary. Updated performance information for the Fund is available at www.gmo.com. Past performance (before and after taxes) is not an indication of future performance.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s annual total returns from year to year for the periods indicated and by comparing the Fund’s average annual total returns for different calendar periods with those of two broad-based indices.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.gmo.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns/Class III Shares*Years Ending December 31
Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock
* The Fund is the successor to GMO U.S. Core Fund, a former series of GMO Trust that had an investment objective and investment policies and restrictions substantially identical to those of the Fund. Performance of the Fund through September 16, 2005 is that of GMO U.S. Core Fund and reflects GMO U.S. Core Fund’s annual operating expenses (0.02% higher than those of the Fund). For periods during which the Fund or its predecessor had no Class V shares outstanding, Class V shares’ returns are those of the Fund’s Class IV shares, with no adjustment made to reflect the lower total annual operating expenses of Class V shares. Class V shares are invested in the same portfolio of securities as Class IV shares. Annual returns would principally differ to the extent Class V shares do not have the same expenses as Class IV shares.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarter: 19.81% (2Q2020)
Lowest Quarter: -21.15% (1Q2020)
Year-to-Date (as of 3/31/22): -4.82%
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Mar. 31, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (4.82%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 19.81%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.15%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns Periods Ending December 31, 2021
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns 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 rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant if you are tax-exempt or if you hold your Fund shares through tax-advantaged arrangements (such as a 401(k) plan or individual retirement account).
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Class III shares only; after-tax returns for other classes will vary.
GMO U.S. Equity Fund | Class III  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.46% [1]
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 0.50%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.47%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 48
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 157
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 277
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 625
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 48
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 157
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 277
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 625
Annual Return 2012 rr_AnnualReturn2012 12.81%
Annual Return 2013 rr_AnnualReturn2013 29.61%
Annual Return 2014 rr_AnnualReturn2014 9.27%
Annual Return 2015 rr_AnnualReturn2015 0.65%
Annual Return 2016 rr_AnnualReturn2016 13.58%
Annual Return 2017 rr_AnnualReturn2017 18.46%
Annual Return 2018 rr_AnnualReturn2018 (9.78%)
Annual Return 2019 rr_AnnualReturn2019 28.57%
Annual Return 2020 rr_AnnualReturn2020 13.69%
Annual Return 2021 rr_AnnualReturn2021 32.13%
1 Year rr_AverageAnnualReturnYear01 32.13% [2]
5 Years rr_AverageAnnualReturnYear05 15.60% [2]
10 Years rr_AverageAnnualReturnYear10 14.19% [2]
Since Inception rr_AverageAnnualReturnSinceInception 11.61% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 1985
GMO U.S. Equity Fund | Class III | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 25.47% [2]
5 Years rr_AverageAnnualReturnYear05 11.59% [2]
10 Years rr_AverageAnnualReturnYear10 11.10% [2]
Since Inception rr_AverageAnnualReturnSinceInception 8.79% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 1985
GMO U.S. Equity Fund | Class III | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 21.94% [2]
5 Years rr_AverageAnnualReturnYear05 11.39% [2]
10 Years rr_AverageAnnualReturnYear10 10.84% [2]
Since Inception rr_AverageAnnualReturnSinceInception 8.78% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 1985
GMO U.S. Equity Fund | Class III | S&P Composite 1500 Index (Fund benchmark) (reflects no deduction for fees, expenses, or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 28.45% [2]
5 Years rr_AverageAnnualReturnYear05 17.95% [2]
10 Years rr_AverageAnnualReturnYear10 16.35% [2]
Since Inception rr_AverageAnnualReturnSinceInception [2]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 1985
GMO U.S. Equity Fund | Class IV  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.41% [1]
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 0.45%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.42%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 43
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 141
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 249
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 564
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 43
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 141
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 249
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 564
GMO U.S. Equity Fund | Class V  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.395% [1]
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 0.44%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.41%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 42
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 138
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 243
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 552
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 42
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 138
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 243
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 552
GMO U.S. Equity Fund | Class VI  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.365% [1]
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 0.41%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.38%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 39
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 129
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 227
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 515
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 39
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 129
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 227
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 515
1 Year rr_AverageAnnualReturnYear01 32.34% [2]
5 Years rr_AverageAnnualReturnYear05 15.70% [2]
10 Years rr_AverageAnnualReturnYear10 14.29% [2]
Since Inception rr_AverageAnnualReturnSinceInception 9.66% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2003 [2]
GMO U.S. Equity Fund | Class VI | S&P Composite 1500 Index (Fund benchmark) (reflects no deduction for fees, expenses, or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 28.45% [2]
5 Years rr_AverageAnnualReturnYear05 17.95% [2]
10 Years rr_AverageAnnualReturnYear10 16.35% [2]
Since Inception rr_AverageAnnualReturnSinceInception 11.27% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2003 [2]
GMO U.S. Equity Fund | Class R6  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.46% [1]
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual fund operating expenses rr_ExpensesOverAssets 0.50%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.47%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 48
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 157
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 277
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 625
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 48
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 157
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 277
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 625
GMO U.S. Equity Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.46% [1]
Other expenses rr_OtherExpensesOverAssets 0.14% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 0.60%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.03%) [1],[3]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.57%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 58
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 189
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 332
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 747
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 58
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 189
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 332
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 747
[1] Includes both management fee of 0.31% and class-specific shareholder service fee, if any, for each class of shares. For additional information about the shareholder service fee applicable to each class of shares of the Fund, please see the table included in the section of the Prospectus entitled “Multiple Classes and Eligibility.” Grantham, Mayo, Van Otterloo & Co. LLC (“GMO”) has contractually agreed to reimburse the Fund for the portion of its “Specified Operating Expenses” ​(as defined below) that exceeds 0.01% of the Fund’s average daily net assets. “Specified Operating Expenses” means only the following expenses: audit expenses, fund accounting expenses, pricing service expenses, expenses of non-investment related tax services, transfer agency expenses (excluding, in the case of Class I shares, any amounts paid for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries for the benefit of Class I shareholders), expenses of non-investment related legal services provided to the Fund by or at the direction of GMO, federal securities law filing expenses, printing expenses, state and federal registration fees and custody expenses. GMO also has contractually agreed to waive or reduce the Fund’s management fees and shareholder service fees to the extent necessary to offset the management fees and shareholder service fees paid to GMO that are directly or indirectly borne by the Fund or a class of shares of the Fund as a result of the Fund’s direct or indirect investments in other series of GMO Trust (“GMO Funds”). Management fees and shareholder service fees will not be waived below zero. These reimbursements and waivers will continue through at least June 30, 2023 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.
[2] The Fund is the successor to GMO U.S. Core Fund, a former series of GMO Trust that had an investment objective and investment policies and restrictions substantially identical to those of the Fund. Performance of the Fund through September 16, 2005 is that of GMO U.S. Core Fund and reflects GMO U.S. Core Fund’s annual operating expenses (0.02% higher than those of the Fund). For periods during which the Fund or its predecessor had no Class V shares outstanding, Class V shares’ returns are those of the Fund’s Class IV shares, with no adjustment made to reflect the lower total annual operating expenses of Class V shares. Class V shares are invested in the same portfolio of securities as Class IV shares. Annual returns would principally differ to the extent Class V shares do not have the same expenses as Class IV shares.
[3] Includes estimate of payments for sub-transfer agency, recordkeeping and other administrative services for Class I’s initial fiscal year. GMO has contractually agreed to waive its fees with respect to and/or reimburse Class I shares to the extent that amounts paid by the Fund out of the net assets attributable to Class I shares for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries for the benefit of Class I shareholders exceed 0.10% of the average daily net assets attributable to Class I shares. This reimbursement will continue through at least June 30, 2023 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.