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Label

Element

Value

Prospectus [Line Items]

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dei_DocumentType

485BPOS

Period end date

dei_DocumentPeriodEndDate

Feb. 28, 2023

Registrant Name

dei_EntityRegistrantName

EATON VANCE GROWTH TRUST

dei_EntityCentralIndexKey

0000102816

dei_AmendmentFlag

false

Prospectus [Line Items]

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dei_TradingSymbol

EAFGX

Prospectus [Line Items]

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dei_TradingSymbol

ECFGX

Prospectus [Line Items]

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dei_TradingSymbol

EIFGX

Prospectus [Line Items]

rr_ProspectusLineItems

dei_TradingSymbol

EAFVX

Prospectus [Line Items]

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dei_TradingSymbol

ECFVX

Prospectus [Line Items]

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dei_TradingSymbol

EIFVX

Eaton Vance Focused Growth Opportunities Fund

Prospectus [Line Items]

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Eaton Vance Focused Growth Opportunities Fund

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Investment Objective

Objective, Primary

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The Fund's investment objective is to seek long-term capital growth.

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative

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This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. Investors may also pay commissions or other fees to their financial intermediary, which are not reflected below. You may qualify for a reduced sales charge on purchases of Class A shares if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance funds. Certain financial intermediaries also may offer variations in Fund sales charges to their customers as described in Appendix A – Financial Intermediary Sales Charge Variations in this Prospectus. More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 27 of this Prospectus and page 22 of the Fund’s Statement of Additional Information.

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses you pay each year as a percentage of the value of your investment)

Portfolio Turnover

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” the portfolio). A higher portfolio turnover rate 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, affect the Fund’s performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 30% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

30.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for a reduced sales charge on purchases of Class A shares if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance funds. Certain financial intermediaries also may offer variations in Fund sales charges to their customers as described in Appendix A – Financial Intermediary Sales Charge Variations in this Prospectus. More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 27 of this Prospectus and page 22 of the Fund’s Statement of Additional Information.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Example

rr_ExpenseExampleHeading

Example.

Expense Example Narrative

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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 mutual funds. 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% return each year, that the operating expenses remain the same and that any expense reimbursement arrangement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests primarily in large-cap companies, but may invest in common stocks of companies of any market capitalization, including smaller companies. The portfolio managers generally consider large-cap companies to be those companies having market capitalizations equal to or greater than the median capitalization of companies included in the Russell 1000® Growth Index. The Fund generally expects to hold approximately 25 to 40 stocks. The Fund may invest up to 25% of its total assets in foreign securities, some of which may be issued by companies domiciled in emerging market countries, and may also invest in U.S. dollar-denominated securities of foreign companies that trade on U.S. exchanges or in the over-the-counter market (including depositary receipts, such as American Depositary Receipts sponsored or unsponsored and Global Depositary Receipts, that evidence ownership in underlying foreign stocks). The Fund may also invest in publicly traded real estate investment trusts (“REITs”). The Fund may invest in exchange-traded funds (“ETFs”), a type of pooled investment vehicle, in order to manage cash positions or seek exposure to certain markets or market sectors. The Fund may also lend its securities. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in the securities of a single issuer than a “diversified” fund.

Investment decisions are made primarily on the basis of fundamental research. The Fund employs a “growth at a reasonable price” investing style, seeking to acquire growing companies that the portfolio managers believe are reasonably priced in relation to their fundamental value. The portfolio managers may seek to capitalize on market volatility and the actions of short-term investors. The portfolio managers utilize information provided by, and the expertise of the investment adviser’s research staff in making investment decisions. In selecting stocks, the portfolio managers will consider (among other factors) a company’s earnings or cash flow capabilities, financial strength, growth potential, the strength of the company’s business franchises and management team, sustainability of a company’s competitiveness and estimates of the company’s net value. The portfolio managers seek to manage investment risk through rigorous fundamental analysis of risk/return characteristics in securities selection. The portfolio managers also use various risk tools to help manage and monitor the portfolio’s risk profile as well as an individual stock’s valuation, volatility and other risk characteristics. Such risk tools include quantitative tools to assist in portfolio construction, monitoring, and maintaining issuer and industry diversification among the Fund’s holdings. The portfolio managers may sell a security when they believe it is fully valued, the fundamentals of a company deteriorate, a stock’s price falls below its acquisition cost, management fails to execute its strategy or to pursue more attractive investment options. The portfolio managers may also consider financially material environmental, social and governance (“ESG”) factors in evaluating an issuer. These considerations may be taken into account alongside other fundamental research in the investment selection process.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal market conditions, the Fund invests primarily in large-cap companies, but may invest in common stocks of companies of any market capitalization, including smaller companies. The portfolio managers generally consider large-cap companies to be those companies having market capitalizations equal to or greater than the median capitalization of companies included in the Russell 1000® Growth Index. The Fund generally expects to hold approximately 25 to 40 stocks. The Fund may invest up to 25% of its total assets in foreign securities, some of which may be issued by companies domiciled in emerging market countries, and may also invest in U.S. dollar-denominated securities of foreign companies that trade on U.S. exchanges or in the over-the-counter market (including depositary receipts, such as American Depositary Receipts sponsored or unsponsored and Global Depositary Receipts, that evidence ownership in underlying foreign stocks). The Fund may also invest in publicly traded real estate investment trusts (“REITs”). The Fund may invest in exchange-traded funds (“ETFs”), a type of pooled investment vehicle, in order to manage cash positions or seek exposure to certain markets or market sectors. The Fund may also lend its securities. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in the securities of a single issuer than a “diversified” fund.

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Principal Risks

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Market Risk. The value of investments held by the Fund may increase or decrease in response to social, economic, political, financial, public health crises or other disruptive events (whether real, expected or perceived) in the U.S. and global markets and include events such as war, natural disasters, epidemics and pandemics, terrorism, conflicts and social unrest. These events may negatively impact broad segments of businesses and populations and may exacerbate pre-existing risks to the Fund. The frequency and magnitude of resulting changes in the value of the Fund’s investments cannot be predicted. Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in reaction to changing market conditions. Monetary and/or fiscal actions taken by U.S. or foreign governments to stimulate or stabilize the global economy may not be effective and could lead to high market volatility.

Equity Securities Risk. The value of equity securities and related instruments may decline in response to adverse changes in the economy or the economic outlook; deterioration in investor sentiment; interest rate, currency, and commodity price fluctuations; adverse geopolitical, social or environmental developments; issuer and sector-specific considerations, which are more significant in a focused fund that invests in a limited number of securities; unexpected trading activity among retail investors; or other factors. Market conditions may affect certain types of stocks to a greater extent than other types of stocks. If the stock market declines in value, the value of the Fund’s equity securities will also likely decline. Although prices can rebound, there is no assurance that values will return to previous levels.

Large-Cap Growth Risk. Because the Fund normally invests primarily in stocks of large-cap growth companies, it is subject to the risk of underperforming the overall stock market during periods in which stocks of such companies are out of favor and generate lower returns than the market as a whole.

Information Technology Sector Risk. The value of Fund shares may be particularly impacted by events that adversely affect the information technology sector, such as rapid changes in technology product cycles, product obsolescence, government regulation, and competition, and may fluctuate more than that of a fund that does not concentrate in companies in the technology sector.

Foreign Investment Risk. Foreign investments can be adversely affected by political, economic and market developments abroad, including the imposition of economic and other sanctions by the United States or another country against a particular country or countries, organizations, entities and/or individuals. There may be less publicly available information about foreign issuers because they may not be subject to reporting practices, requirements or regulations comparable to those to which United States companies are subject. Adverse changes in investment regulations, capital requirements or exchange controls could adversely affect the value of the Fund's investments. Foreign markets may be smaller, less liquid and more volatile than the major markets in the United States and, as a result, Fund share values may be more volatile. Trading in foreign markets typically involves higher expense than trading in the United States. The Fund may have difficulties enforcing its legal or contractual rights in a foreign country. Depositary receipts are subject to many of the risks associated with investing directly in foreign instruments, including the political and economic risks of the underlying issuer's country and, in the case of depositary receipts traded on foreign markets, currency risk.

Emerging Markets Investment Risk. Investment markets within emerging market countries are typically smaller, less liquid, less developed and more volatile than those in more developed markets like the United States, and may be focused in certain sectors. Emerging market securities often involve greater risks than developed market securities. The information available about an emerging market issuer may be less reliable than for comparable issuers in more developed capital markets.

Currency Risk. Exchange rates for currencies fluctuate daily. The value of foreign investments may be affected favorably or unfavorably by changes in currency exchange rates in relation to the U.S. dollar. Currency markets generally are not as regulated as securities markets and currency transactions are subject to settlement, custodial and other operational risks.

Smaller Company Risk. The stocks of smaller, less seasoned companies are generally subject to greater price fluctuations, limited liquidity, higher transaction costs and higher investment risk than the stocks of larger, more established companies. Such companies may have limited product lines, markets or financial resources, may be dependent on a limited management group, and may lack substantial capital reserves or an established performance record. There may be generally less publicly available information about such companies than for larger, more established companies. Stocks of these companies frequently have lower trading volumes making them more volatile and potentially less liquid and more difficult to value.

Sector Risk. Because the Fund may, under certain market conditions, invest a significant portion of its assets in one or more sectors, the value of Fund shares may be affected by events that adversely affect a particular sector and may fluctuate more than that of a fund that invests more broadly.

Real Estate Risk. Real estate investments are subject to risks associated with owning real estate, including declines in real estate values, increases in property taxes, fluctuations in interest rates, limited availability of mortgage financing, decreases in revenues from underlying real estate assets, declines in occupancy rates, changes in government regulations affecting zoning, land use, and rents, environmental liabilities, and risks related to the management skill and creditworthiness of the issuer. Companies in the real estate industry may also be subject to liabilities under environmental and hazardous waste laws, among others. REITs must satisfy specific requirements for favorable tax treatment and can involve unique risks in addition to the risks generally affecting the real estate industry. Changes in underlying real estate values may have an exaggerated effect to the extent that investments are concentrated in particular geographic regions or property types.

ETF Risk. ETFs are subject to the risks of investing in the underlying securities or other investments. ETF shares may trade at a premium or discount to net asset value and are subject to secondary market trading risks. In addition, the Fund will bear a pro rata portion of the operating expenses of an ETF in which it invests.

Liquidity Risk. The Fund is exposed to liquidity risk when trading volume, lack of a market maker or trading partner, large position size, market conditions, or legal restrictions impair its ability to sell particular investments or to sell them at advantageous market prices. Consequently, the Fund may have to accept a lower price to sell an investment or continue to hold it or keep the position open, sell other investments to raise cash or abandon an investment opportunity, any of which could have a negative effect on the Fund’s performance. These effects may be exacerbated during times of financial or political stress.

Securities Lending Risk. Securities lending involves a possible delay in recovery of the loaned securities or a possible loss of rights in the collateral if the borrower fails financially. The Fund could also lose money if the value of the collateral decreases.

Issuer Non-Diversification Risk. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in the securities of a single issuer than a fund that is “diversified.” Non-diversified funds may focus their investments in a small number of issuers, making them more susceptible to risks affecting such issuers than a more diversified fund might be, and the value of the Fund's shares may be more volatile than the values of shares of more diversified funds.

Risks Associated with Active Management. The success of the Fund’s investment strategy depends on portfolio management’s successful application of analytical skills and investment judgment. Active management involves subjective decisions and there is no guarantee that such decisions will produce the desired results or expected returns.

General Fund Investing Risks. The Fund is not a complete investment program and there is no guarantee that the Fund will achieve its investment objective. It is possible to lose money by investing in the Fund. The Fund is designed to be a long-term investment vehicle and is not suited for short-term trading. Investors in the Fund should have a long-term investment perspective and be able to tolerate potentially sharp declines in value. Purchase and redemption activities by Fund shareholders may impact the management of the Fund and its ability to achieve its investment objective(s). In addition, the redemption by one or more large shareholders or groups of shareholders of their holdings in the Fund could have an adverse impact on the remaining shareholders in the Fund. The Fund relies on various service providers, including the investment adviser and sub-adviser, if applicable, in its operations and is susceptible to operational, information security and related events (such as public health crises, cyber or hacking attacks) that may affect the service providers or the services that they provide to the Fund. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Risk Lose Money

rr_RiskLoseMoney

The Fund is not a complete investment program and there is no guarantee that the Fund will achieve its investment objective. It is possible to lose money by investing in the Fund.

Risk Not Insured Depository Institution

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Risk Nondiversified Status

rr_RiskNondiversifiedStatus

Issuer Non-Diversification Risk. The Fund is “non-diversified,” which means it may invest a greater percentage of its assets in the securities of a single issuer than a fund that is “diversified.” Non-diversified funds may focus their investments in a small number of issuers, making them more susceptible to risks affecting such issuers than a more diversified fund might be, and the value of the Fund's shares may be more volatile than the values of shares of more diversified funds.

Bar Chart and Performance Table

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Performance

Performance Narrative

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The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and how the Fund’s average annual returns over time compare with those of a broad-based securities market index. The returns in the bar chart are for Class A shares and do not reflect a sales charge. If the sales charge was reflected, the returns would be lower. Past performance (both before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The Fund’s performance for certain periods reflects the effects of expense reductions. Absent these reductions, performance for certain periods would have been lower. Updated Fund performance information can be obtained by visiting www.eatonvance.com.

Performance Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and how the Fund’s average annual returns over time compare with those of a broad-based securities market index.

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.eatonvance.com

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

Past performance (both before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Does Not Reflect Sales Loads

rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart are for Class A shares and do not reflect a sales charge. If the sales charge was reflected, the returns would be lower.

Annual Return Caption

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Calendar year-by-year total return

Bar Chart Closing

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During the ten years ended December 31, 2022, the highest quarterly total return for Class A was 31.04% for the quarter ended June 30, 2020, and the lowest quarterly return was -22.75% for the quarter ended June 30, 2022. The year-to-date total return through the end of the most recent calendar quarter (December 31, 2022 to March 31, 2023) was 13.55%.

Year to Date Return, Label

rr_YearToDateReturnLabel

The year-to-date total return through the end of the most recent calendar quarter (December 31, 2022 to March 31, 2023) was 13.55%.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

These returns reflect the maximum current sales charge for Class A (5.25%) and any applicable contingent deferred sales charge (“CDSC”) for Class C.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest historical individual federal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder’s tax situation and the actual characterization of distributions, and may differ from those shown.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant to shareholders who hold shares in tax-deferred accounts or to shares held by non-taxable entities.

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns for other Classes of shares will vary from the after-tax returns presented for Class A shares.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

Return After Taxes on Distributions for a period may be the same as Return Before Taxes for that period because no taxable distributions were made during that period. Also, Return After Taxes on Distributions and Sale of Fund Shares for a period may be greater than or equal to Return Before Taxes and/or Return After Taxes on Distributions for the same period because of losses realized on the sale of Fund shares.

Performance Table Closing

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These returns reflect the maximum current sales charge for Class A (5.25%) and any applicable contingent deferred sales charge (“CDSC”) for Class C. Effective November 5, 2020, Class C shares automatically convert to Class A shares eight years after purchase. The average total returns listed for Class C reflect conversion to Class A shares after eight years. Investors cannot invest directly in an Index.

After-tax returns are calculated using the highest historical individual federal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder’s tax situation and the actual characterization of distributions, and may differ from those shown. After-tax returns are not relevant to shareholders who hold shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns for other Classes of shares will vary from the after-tax returns presented for Class A shares. Return After Taxes on Distributions for a period may be the same as Return Before Taxes for that period because no taxable distributions were made during that period. Also, Return After Taxes on Distributions and Sale of Fund Shares for a period may be greater than or equal to Return Before Taxes and/or Return After Taxes on Distributions for the same period because of losses realized on the sale of Fund shares.

Average Annual Return, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Return as of December 31, 2022

Eaton Vance Focused Growth Opportunities Fund | Russell 1000® Growth Index

Prospectus [Line Items]

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Index No Deduction for Fees, Expenses, Taxes

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(reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnYear01

(29.14%)

rr_AverageAnnualReturnYear05

10.95%

rr_AverageAnnualReturnYear10

14.09%

Eaton Vance Focused Growth Opportunities Fund | Class A

Prospectus [Line Items]

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Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.25%

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[1]

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.19%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.09%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[2]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

1.05%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 626

rr_ExpenseExampleYear03

850

rr_ExpenseExampleYear05

1,091

rr_ExpenseExampleYear10

1,781

rr_ExpenseExampleNoRedemptionYear01

626

rr_ExpenseExampleNoRedemptionYear03

850

rr_ExpenseExampleNoRedemptionYear05

1,091

rr_ExpenseExampleNoRedemptionYear10

$ 1,781

rr_AnnualReturn2013

33.27%

rr_AnnualReturn2014

14.20%

rr_AnnualReturn2015

6.44%

rr_AnnualReturn2016

3.30%

rr_AnnualReturn2017

25.15%

rr_AnnualReturn2018

0.62%

rr_AnnualReturn2019

29.45%

rr_AnnualReturn2020

44.21%

rr_AnnualReturn2021

16.23%

rr_AnnualReturn2022

(32.41%)

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2023

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

13.55%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly total return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2020

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

31.04%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2022

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(22.75%)

rr_AverageAnnualReturnYear01

(35.96%)

rr_AverageAnnualReturnYear05

6.93%

rr_AverageAnnualReturnYear10

11.33%

Eaton Vance Focused Growth Opportunities Fund | Class A | After Taxes on Distributions

Prospectus [Line Items]

rr_ProspectusLineItems

rr_AverageAnnualReturnYear01

(39.07%)

rr_AverageAnnualReturnYear05

4.23%

rr_AverageAnnualReturnYear10

9.73%

Eaton Vance Focused Growth Opportunities Fund | Class A | After Taxes on Distributions and Sales

Prospectus [Line Items]

rr_ProspectusLineItems

rr_AverageAnnualReturnYear01

(17.74%)

rr_AverageAnnualReturnYear05

5.90%

rr_AverageAnnualReturnYear10

9.77%

Eaton Vance Focused Growth Opportunities Fund | Class C

Prospectus [Line Items]

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Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.19%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.84%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[2]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

1.80%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 283

rr_ExpenseExampleYear03

575

rr_ExpenseExampleYear05

992

rr_ExpenseExampleYear10

1,957

rr_ExpenseExampleNoRedemptionYear01

183

rr_ExpenseExampleNoRedemptionYear03

575

rr_ExpenseExampleNoRedemptionYear05

992

rr_ExpenseExampleNoRedemptionYear10

$ 1,957

rr_AverageAnnualReturnYear01

(33.39%)

rr_AverageAnnualReturnYear05

7.29%

rr_AverageAnnualReturnYear10

11.27%

Eaton Vance Focused Growth Opportunities Fund | Class I

Prospectus [Line Items]

rr_ProspectusLineItems

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.19%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.84%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[2]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

0.80%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 82

rr_ExpenseExampleYear03

264

rr_ExpenseExampleYear05

462

rr_ExpenseExampleYear10

1,033

rr_ExpenseExampleNoRedemptionYear01

82

rr_ExpenseExampleNoRedemptionYear03

264

rr_ExpenseExampleNoRedemptionYear05

462

rr_ExpenseExampleNoRedemptionYear10

$ 1,033

rr_AverageAnnualReturnYear01

(32.24%)

rr_AverageAnnualReturnYear05

8.36%

rr_AverageAnnualReturnYear10

12.22%

Eaton Vance Focused Value Opportunities Fund

Prospectus [Line Items]

rr_ProspectusLineItems

rr_RiskReturnHeading

Eaton Vance Focused Value Opportunities Fund

rr_ObjectiveHeading

Investment Objective

Objective, Primary

rr_ObjectivePrimaryTextBlock

The Fund's investment objective is total return.

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. Investors may also pay commissions or other fees to their financial intermediary, which are not reflected below. You may qualify for a reduced sales charge on purchases of Class A shares if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance funds. Certain financial intermediaries also may offer variations in Fund sales charges to their customers as described in Appendix A – Financial Intermediary Sales Charge Variations in this Prospectus. More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 27 of this Prospectus and page 22 of the Fund’s Statement of Additional Information.

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses you pay each year as a percentage of the value of your investment)

Portfolio Turnover

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” the portfolio). A higher portfolio turnover rate 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, affect the Fund’s performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 113% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

113.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for a reduced sales charge on purchases of Class A shares if you invest, or agree to invest over a 13-month period, at least $50,000 in Eaton Vance funds. Certain financial intermediaries also may offer variations in Fund sales charges to their customers as described in Appendix A – Financial Intermediary Sales Charge Variations in this Prospectus. More information about these and other discounts is available from your financial intermediary and in Sales Charges beginning on page 27 of this Prospectus and page 22 of the Fund’s Statement of Additional Information.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Example

rr_ExpenseExampleHeading

Example.

Expense Example Narrative

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 and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year, that the operating expenses remain the same and that any expense reimbursement arrangement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests primarily in large-cap companies, but may invest in common stocks of companies of any market capitalization, including smaller companies. The portfolio managers generally consider large-cap companies to be those companies having market capitalizations equal to or greater than the median capitalization of companies included in the Russell 1000® Value Index. The Fund invests primarily in value stocks, which are common stocks that, in the opinion of the investment adviser, are inexpensive or undervalued relative to the overall stock market. The Fund generally expects to hold approximately 25 to 45 stocks. The Fund may invest up to 25% of its total assets in foreign securities, some of which may be issued by companies domiciled in emerging market countries, and may also invest in U.S. dollar-denominated securities of foreign companies that trade on U.S. exchanges or in the over-the-counter market (including depositary receipts, such as American Depositary Receipts sponsored or unsponsored and Global Depositary Receipts, that evidence ownership in underlying foreign stocks). The Fund may also invest in publicly traded real estate investment trusts (“REITs”). The Fund may invest in exchange-traded funds (“ETFs”), a type of pooled investment vehicle, in order to manage cash positions or seek exposure to certain markets or market sectors. The Fund may also lend its securities.

Investment decisions are made primarily on the basis of fundamental research. The portfolio managers utilize information provided by, and the expertise of the investment adviser’s research staff in making investment decisions. In selecting securities, the portfolio managers consider (among other factors) a company’s earnings or cash flow capabilities, dividend prospects, financial strength, growth potential, the strength of the company’s business franchises and management team, sustainability of a company’s competitiveness, and estimates of the company’s net value. The portfolio managers may sell a security when the investment adviser’s price objective for the security is reached, the fundamentals of the company deteriorate, a security’s price falls below acquisition cost or to pursue more attractive investment options. The portfolio managers seek to manage investment risk by utilizing fundamental analysis of risk/return characteristics in securities selection and also by using quantitative tools to assist in portfolio construction, monitoring, and maintaining issuer and industry diversification among the Fund’s holdings. The portfolio managers may also consider financially material environmental, social and governance (“ESG”) factors in evaluating an issuer. These considerations may be taken into account alongside other fundamental research in the investment selection process.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal market conditions, the Fund invests primarily in large-cap companies, but may invest in common stocks of companies of any market capitalization, including smaller companies. The portfolio managers generally consider large-cap companies to be those companies having market capitalizations equal to or greater than the median capitalization of companies included in the Russell 1000® Value Index. The Fund invests primarily in value stocks, which are common stocks that, in the opinion of the investment adviser, are inexpensive or undervalued relative to the overall stock market. The Fund generally expects to hold approximately 25 to 45 stocks. The Fund may invest up to 25% of its total assets in foreign securities, some of which may be issued by companies domiciled in emerging market countries, and may also invest in U.S. dollar-denominated securities of foreign companies that trade on U.S. exchanges or in the over-the-counter market (including depositary receipts, such as American Depositary Receipts sponsored or unsponsored and Global Depositary Receipts, that evidence ownership in underlying foreign stocks). The Fund may also invest in publicly traded real estate investment trusts (“REITs”). The Fund may invest in exchange-traded funds (“ETFs”), a type of pooled investment vehicle, in order to manage cash positions or seek exposure to certain markets or market sectors. The Fund may also lend its securities.

rr_RiskHeading

Principal Risks

rr_RiskNarrativeTextBlock

Market Risk. The value of investments held by the Fund may increase or decrease in response to social, economic, political, financial, public health crises or other disruptive events (whether real, expected or perceived) in the U.S. and global markets and include events such as war, natural disasters, epidemics and pandemics, terrorism, conflicts and social unrest. These events may negatively impact broad segments of businesses and populations and may exacerbate pre-existing risks to the Fund. The frequency and magnitude of resulting changes in the value of the Fund’s investments cannot be predicted. Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in reaction to changing market conditions. Monetary and/or fiscal actions

taken by U.S. or foreign governments to stimulate or stabilize the global economy may not be effective and could lead to high market volatility.

Equity Securities Risk. The value of equity securities and related instruments may decline in response to adverse changes in the economy or the economic outlook; deterioration in investor sentiment; interest rate, currency, and commodity price fluctuations; adverse geopolitical, social or environmental developments; issuer and sector-specific considerations, which are more significant in a focused fund that invests in a limited number of securities; unexpected trading activity among retail investors; or other factors. Market conditions may affect certain types of stocks to a greater extent than other types of stocks. If the stock market declines in value, the value of the Fund’s equity securities will also likely decline. Although prices can rebound, there is no assurance that values will return to previous levels.

Large-Cap Value Risk. Because the Fund normally invests primarily in stocks of large-cap value companies, it is subject to the risk of underperforming the overall stock market during periods in which stocks of such companies are out of favor and generate lower returns than the market as a whole.

Foreign Investment Risk. Foreign investments can be adversely affected by political, economic and market developments abroad, including the imposition of economic and other sanctions by the United States or another country against a particular country or countries, organizations, entities and/or individuals. There may be less publicly available information about foreign issuers because they may not be subject to reporting practices, requirements or regulations comparable to those to which United States companies are subject. Adverse changes in investment regulations, capital requirements or exchange controls could adversely affect the value of the Fund's investments. Foreign markets may be smaller, less liquid and more volatile than the major markets in the United States and, as a result, Fund share values may be more volatile. Trading in foreign markets typically involves higher expense than trading in the United States. The Fund may have difficulties enforcing its legal or contractual rights in a foreign country. Depositary receipts are subject to many of the risks associated with investing directly in foreign instruments, including the political and economic risks of the underlying issuer's country and, in the case of depositary receipts traded on foreign markets, currency risk.

Emerging Markets Investment Risk. Investment markets within emerging market countries are typically smaller, less liquid, less developed and more volatile than those in more developed markets like the United States, and may be focused in certain sectors. Emerging market securities often involve greater risks than developed market securities. The information available about an emerging market issuer may be less reliable than for comparable issuers in more developed capital markets.

Currency Risk. Exchange rates for currencies fluctuate daily. The value of foreign investments may be affected favorably or unfavorably by changes in currency exchange rates in relation to the U.S. dollar. Currency markets generally are not as regulated as securities markets and currency transactions are subject to settlement, custodial and other operational risks.

Smaller Company Risk. The stocks of smaller, less seasoned companies are generally subject to greater price fluctuations, limited liquidity, higher transaction costs and higher investment risk than the stocks of larger, more established companies. Such companies may have limited product lines, markets or financial resources, may be dependent on a limited management group, and may lack substantial capital reserves or an established performance record. There may be generally less publicly available information about such companies than for larger, more established companies. Stocks of these companies frequently have lower trading volumes making them more volatile and potentially less liquid and more difficult to value.

Sector Risk. Because the Fund may, under certain market conditions, invest a significant portion of its assets in one or more sectors, the value of Fund shares may be affected by events that adversely affect a particular sector and may fluctuate more than that of a fund that invests more broadly.

Real Estate Risk. Real estate investments are subject to risks associated with owning real estate, including declines in real estate values, increases in property taxes, fluctuations in interest rates, limited availability of mortgage financing, decreases in revenues from underlying real estate assets, declines in occupancy rates, changes in government regulations affecting zoning, land use, and rents, environmental liabilities, and risks related to the management skill and creditworthiness of the issuer. Companies in the real estate industry may also be subject to liabilities under environmental and hazardous waste laws, among others. REITs must satisfy specific requirements for favorable tax treatment and can involve unique risks in addition to the risks generally affecting the real estate industry. Changes in underlying real estate values may have an exaggerated effect to the extent that investments are concentrated in particular geographic regions or property types.

ETF Risk. ETFs are subject to the risks of investing in the underlying securities or other investments. ETF shares may trade at a premium or discount to net asset value and are subject to secondary market trading risks. In addition, the Fund will bear a pro rata portion of the operating expenses of an ETF in which it invests.

Liquidity Risk. The Fund is exposed to liquidity risk when trading volume, lack of a market maker or trading partner, large position size, market conditions, or legal restrictions impair its ability to sell particular investments or to sell them at advantageous market prices. Consequently, the Fund may have to accept a lower price to sell an investment or continue to hold it or keep the position open, sell other investments to raise cash or abandon an investment opportunity, any of which could have a negative effect on the Fund’s performance. These effects may be exacerbated during times of financial or political stress.

Portfolio Turnover Risk. The annual portfolio turnover rate of the Fund may exceed 100%. A mutual fund with a high turnover rate (100% or more) may generate more capital gains and may involve greater expenses (which may reduce return) than a fund with a lower rate. Capital gains distributions will be made to shareholders if offsetting capital loss carry forwards do not exist.

Securities Lending Risk. Securities lending involves a possible delay in recovery of the loaned securities or a possible loss of rights in the collateral if the borrower fails financially. The Fund could also lose money if the value of the collateral decreases.

Risks Associated with Active Management. The success of the Fund’s investment strategy depends on portfolio management’s successful application of analytical skills and investment judgment. Active management involves subjective decisions and there is no guarantee that such decisions will produce the desired results or expected returns.

General Fund Investing Risks. The Fund is not a complete investment program and there is no guarantee that the Fund will achieve its investment objective. It is possible to lose money by investing in the Fund. The Fund is designed to be a long-term investment vehicle and is not suited for short-term trading. Investors in the Fund should have a long-term investment perspective and be able to tolerate potentially sharp declines in value. Purchase and redemption activities by Fund shareholders may impact the management of the Fund and its ability to achieve its investment objective(s). In addition, the redemption by one or more large shareholders or groups of shareholders of their holdings in the Fund could have an adverse impact on the remaining shareholders in the Fund. The Fund relies on various service providers, including the investment adviser and sub-adviser, if applicable, in its operations and is susceptible to operational, information security and related events (such as public health crises, cyber or hacking attacks) that may affect the service providers or the services that they provide to the Fund. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Risk Lose Money

rr_RiskLoseMoney

The Fund is not a complete investment program and there is no guarantee that the Fund will achieve its investment objective. It is possible to lose money by investing in the Fund.

Risk Not Insured Depository Institution

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative

rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and how the Fund’s average annual returns over time compare with those of a broad-based securities market index. The returns in the bar chart are for Class A shares and do not reflect a sales charge. If the sales charge was reflected, the returns would be lower. Past performance (both before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The Fund’s performance reflects the effects of expense reductions. Absent these reductions, performance would have been lower. Updated Fund performance information can be obtained by visiting www.eatonvance.com.

Performance Information Illustrates Variability of Returns

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following bar chart and table provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and how the Fund’s average annual returns over time compare with those of a broad-based securities market index.

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

www.eatonvance.com

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

Past performance (both before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Does Not Reflect Sales Loads

rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart are for Class A shares and do not reflect a sales charge. If the sales charge was reflected, the returns would be lower.

Annual Return Caption

rr_AnnualReturnCaption

Calendar year-by-year total return

Bar Chart Closing

rr_BarChartClosingTextBlock

During the ten years ended December 31, 2022, the highest quarterly total return for Class A was 15.81% for the quarter ended June 30, 2020, and the lowest quarterly return was -27.81% for the quarter ended March 31, 2020. The year-to-date total return through the end of the most recent calendar quarter (December 31, 2022 to March 31, 2023) was -3.03%.

Year to Date Return, Label

rr_YearToDateReturnLabel

The year-to-date total return through the end of the most recent calendar quarter (December 31, 2022 to March 31, 2023) was -3.03%.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

These returns reflect the maximum current sales charge for Class A (5.25%) and any applicable contingent deferred sales charge (“CDSC”) for Class C.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest historical individual federal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder’s tax situation and the actual characterization of distributions, and may differ from those shown.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant to shareholders who hold shares in tax-deferred accounts or to shares held by non-taxable entities.

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns for other Classes of shares will vary from the after-tax returns presented for Class A shares.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

Return After Taxes on Distributions for a period may be the same as Return Before Taxes for that period because no taxable distributions were made during that period. Also, Return After Taxes on Distributions and Sale of Fund Shares for a period may be greater than or equal to Return Before Taxes and/or Return After Taxes on Distributions for the same period because of losses realized on the sale of Fund shares.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

These returns reflect the maximum current sales charge for Class A (5.25%) and any applicable contingent deferred sales charge (“CDSC”) for Class C. Effective November 5, 2020, Class C shares automatically convert to Class A shares eight years after purchase. The average total returns listed for Class C reflect conversion to Class A shares after eight years. Prior to November 5, 2020, Class C shares automatically converted to Class A shares ten years after purchase. Investors cannot invest directly in an Index.

After-tax returns are calculated using the highest historical individual federal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder’s tax situation and the actual characterization of distributions, and may differ from those shown. After-tax returns are not relevant to shareholders who hold shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns for other Classes of shares will vary from the after-tax returns presented for Class A shares. Return After Taxes on Distributions for a period may be the same as Return Before Taxes for that period because no taxable distributions were made during that period. Also, Return After Taxes on Distributions and Sale of Fund Shares for a period may be greater than or equal to Return Before Taxes and/or Return After Taxes on Distributions for the same period because of losses realized on the sale of Fund shares.

Average Annual Return, Caption

rr_AverageAnnualReturnCaption

Average Annual Total Return as of December 31, 2022

Eaton Vance Focused Value Opportunities Fund | Russell 1000® Value Index

Prospectus [Line Items]

rr_ProspectusLineItems

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnYear01

(7.54%)

rr_AverageAnnualReturnYear05

6.66%

rr_AverageAnnualReturnYear10

10.29%

Eaton Vance Focused Value Opportunities Fund | Class A

Prospectus [Line Items]

rr_ProspectusLineItems

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.25%

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[3]

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.04%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.05%)

^[4]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

0.99%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 621

rr_ExpenseExampleYear03

834

rr_ExpenseExampleYear05

1,064

rr_ExpenseExampleYear10

1,725

rr_ExpenseExampleNoRedemptionYear01

621

rr_ExpenseExampleNoRedemptionYear03

834

rr_ExpenseExampleNoRedemptionYear05

1,064

rr_ExpenseExampleNoRedemptionYear10

$ 1,725

rr_AnnualReturn2013

32.17%

rr_AnnualReturn2014

9.94%

rr_AnnualReturn2015

(0.51%)

rr_AnnualReturn2016

7.52%

rr_AnnualReturn2017

20.13%

rr_AnnualReturn2018

(5.88%)

rr_AnnualReturn2019

32.34%

rr_AnnualReturn2020

1.98%

rr_AnnualReturn2021

23.49%

rr_AnnualReturn2022

(3.50%)

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2023

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(3.03%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly total return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2020

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

15.81%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(27.81%)

rr_AverageAnnualReturnYear01

(8.56%)

rr_AverageAnnualReturnYear05

7.48%

rr_AverageAnnualReturnYear10

10.34%

Eaton Vance Focused Value Opportunities Fund | Class A | After Taxes on Distributions

Prospectus [Line Items]

rr_ProspectusLineItems

rr_AverageAnnualReturnYear01

(9.23%)

rr_AverageAnnualReturnYear05

5.73%

rr_AverageAnnualReturnYear10

8.96%

Eaton Vance Focused Value Opportunities Fund | Class A | After Taxes on Distributions and Sales

Prospectus [Line Items]

rr_ProspectusLineItems

rr_AverageAnnualReturnYear01

(4.35%)

rr_AverageAnnualReturnYear05

5.64%

rr_AverageAnnualReturnYear10

8.34%

Eaton Vance Focused Value Opportunities Fund | Class C

Prospectus [Line Items]

rr_ProspectusLineItems

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.79%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.05%)

^[4]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

1.74%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 277

rr_ExpenseExampleYear03

558

rr_ExpenseExampleYear05

965

rr_ExpenseExampleYear10

1,904

rr_ExpenseExampleNoRedemptionYear01

177

rr_ExpenseExampleNoRedemptionYear03

558

rr_ExpenseExampleNoRedemptionYear05

965

rr_ExpenseExampleNoRedemptionYear10

$ 1,904

rr_AverageAnnualReturnYear01

(5.15%)

rr_AverageAnnualReturnYear05

7.83%

rr_AverageAnnualReturnYear10

10.29%

Eaton Vance Focused Value Opportunities Fund | Class I

Prospectus [Line Items]

rr_ProspectusLineItems

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of net asset value at time of purchase or redemption)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

Expense Reimbursement (1)

rr_FeeWaiverOrReimbursementOverAssets

(0.05%)

^[4]

Total Annual Fund Operating Expenses After Expense Reimbursement

rr_NetExpensesOverAssets

0.74%

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

June 30, 2024

rr_ExpenseExampleYear01

$ 76

rr_ExpenseExampleYear03

247

rr_ExpenseExampleYear05

434

rr_ExpenseExampleYear10

973

rr_ExpenseExampleNoRedemptionYear01

76

rr_ExpenseExampleNoRedemptionYear03

247

rr_ExpenseExampleNoRedemptionYear05

434

rr_ExpenseExampleNoRedemptionYear10

$ 973

rr_AverageAnnualReturnYear01

(3.32%)

rr_AverageAnnualReturnYear05

8.90%

rr_AverageAnnualReturnYear10

11.22%

[1]	Class A shares purchased at net asset value in amounts of $1 million or more are subject to a 1.00% contingent deferred sales charge if redeemed within 12 months of purchase.
[2]	The investment adviser and administrator has agreed to reimburse the Fund’s expenses to the extent that Total Annual Fund Operating Expenses exceed 1.05% for Class A shares, 1.80% for Class C shares and 0.80% for Class I shares. This expense reimbursement will continue through June 30, 2024. Any amendment to or termination of this reimbursement would require approval of the Board of Trustees. The expense reimbursement relates to ordinary operating expenses only and does not include expenses such as: brokerage commissions, acquired fund fees and expenses of unaffiliated funds, borrowing costs (including borrowing costs of any acquired funds), taxes or litigation expenses. Amounts reimbursed may be recouped by the investment adviser and administrator during the same fiscal year to the extent actual expenses are less than any contractual expense cap in place during such year. Pursuant to this arrangement, the investment adviser and administrator may recoup from the Fund any reimbursed expenses during the same fiscal year if such recoupment does not cause the Fund’s Total Annual Operating Expenses after such recoupment to exceed (i) the expense limit in effect at the time of reimbursement; or (ii) the expense limit in effect at the time of recoupment.
[3]	Class A shares purchased at net asset value in amounts of $1 million or more are subject to a 1.00% contingent deferred sales charge if redeemed within 12 months of purchase.
[4]	The investment adviser and administrator has agreed to reimburse the Fund’s expenses to the extent that Total Annual Fund Operating Expenses exceed 0.99% for Class A shares, 1.74% for Class C shares and 0.74% for Class I shares. This expense reimbursement will continue through June 30, 2024. Any amendment to or termination of this reimbursement would require approval of the Board of Trustees. The expense reimbursement relates to ordinary operating expenses only and does not include expenses such as: brokerage commissions, acquired fund fees and expenses of unaffiliated funds, borrowing costs (including borrowing costs of any acquired funds), taxes or litigation expenses. Amounts reimbursed may be recouped by the investment adviser and administrator during the same fiscal year to the extent actual expenses are less than any contractual expense cap in place during such year. Pursuant to this arrangement, the investment adviser and administrator may recoup from the Fund any reimbursed expenses during the same fiscal year if such recoupment does not cause the Fund’s Total Annual Operating Expenses after such recoupment to exceed (i) the expense limit in effect at the time of reimbursement; or (ii) the expense limit in effect at the time of recoupment.