XML 12 R26.htm IDEA: XBRL DOCUMENT v2.3.0.15
LabelElementValue
Risk/Return:rr_RiskReturnAbstract 
Document Typedei_DocumentType485BPOS
Document Period End Datedei_DocumentPeriodEndDateOct. 14, 2011
Registrant Namedei_EntityRegistrantNameFIDELITY INVESTMENT TRUST
Central Index Keydei_EntityCentralIndexKey0000744822
Amendment Flagdei_AmendmentFlagfalse
Document Creation Datedei_DocumentCreationDateOct. 14, 2011
Document Effective Datedei_DocumentEffectiveDateOct. 17, 2011
Prospectus Daterr_ProspectusDateOct. 17, 2011
Retail | Fidelity Emerging Market Discovery Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Markets Discovery Fund/Fidelity Emerging Markets Discovery Fund
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks capital appreciation.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlockThe following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in either "growth" stocks or "value" stocks or both.
  • Allocating investments across different emerging market countries.
  • Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
  • Mid Cap Investing. The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
  • Small Cap Investing. The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.

In addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Nondiversified Status [Text]rr_RiskNondiversifiedStatusIn addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.
Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
Retail | Fidelity Emerging Market Discovery Fund | Fidelity Emerging Market Discovery Fund - Retail
 
Shareholder feesrr_ShareholderFeesAbstract 
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption2.00%
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.86%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets none
Other expensesrr_OtherExpensesOverAssets0.70%[1]
Total annual operating expensesrr_ExpensesOverAssets1.56%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.11%[2]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.45%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01 148
3 yearsrr_ExpenseExampleYear03480
Retail | Fidelity Total Emerging Markets Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total Emerging Markets Fund/Fidelity Total Emerging Markets Fund
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks income and capital growth.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlockThe following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally invests at least 80% of the fund's assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing approximately 60% of assets in stocks and other equity securities and the remainder in bonds and other debt securities, including lower-quality debt securities, when its outlook is neutral.
  • Allocating the fund's assets across emerging markets sectors, using different Fidelity managers.
  • Allocating investments across different emerging market countries.
  • Analyzing a security's structural features and current pricing, trading opportunities, and the credit, currency, and economic risks of the security and its issuer to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Lower-quality debt securities (those of less than investment-grade quality) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
Retail | Fidelity Total Emerging Markets Fund | Fidelity Total Emerging Markets Fund - Retail
 
Shareholder feesrr_ShareholderFeesAbstract 
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption1.50%
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.81%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets none
Other expensesrr_OtherExpensesOverAssets0.81%[1]
Total annual operating expensesrr_ExpensesOverAssets1.62%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.22%[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.40%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01143
3 yearsrr_ExpenseExampleYear03484
A T C | Fidelity Emerging Market Discovery Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Markets Discovery Fund/Fidelity Advisor® Emerging Markets Discovery Fund A, T, C
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks capital appreciation.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity funds. More information about these and other discounts is available from your investment professional and in the Fund Distribution section beginning on page (Click Here) of the prospectus.

Expense Breakpoint Discounts [Text]rr_ExpenseBreakpointDiscountsYou may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity funds.
Expense Breakpoint, Minimum Investment Required [Amount]rr_ExpenseBreakpointMinimumInvestmentRequiredAmount50,000
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:

Expense Example by, Year, Caption [Text]rr_ExpenseExampleByYearCaptionSell All Shares
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
Expense Example, No Redemption, By Year, Caption [Text]rr_ExpenseExampleNoRedemptionByYearCaptionHold Shares
Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in either "growth" stocks or "value" stocks or both.
  • Allocating investments across different emerging market countries.
  • Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
  • Mid Cap Investing. The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
  • Small Cap Investing. The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.

In addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Nondiversified Status [Text]rr_RiskNondiversifiedStatusIn addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.
Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
A T C | Fidelity Emerging Market Discovery Fund | Fidelity Emerging Markets Discovery Fund - Class A
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther none [4]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption2.00%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockClass A and Class T purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class T purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.86%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets0.25%
Other expensesrr_OtherExpensesOverAssets0.70%[1]
Total annual operating expensesrr_ExpensesOverAssets1.81%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.11%[5]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.70%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01738
3 yearsrr_ExpenseExampleYear031,100
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01738
3 yearsrr_ExpenseExampleNoRedemptionYear031,100
A T C | Fidelity Emerging Market Discovery Fund | Fidelity Emerging Markets Discovery Fund - Class T
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther none [4]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption2.00%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockClass A and Class T purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class T purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.86%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets0.50%
Other expensesrr_OtherExpensesOverAssets0.70%[1]
Total annual operating expensesrr_ExpensesOverAssets2.06%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.11%[5]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.95%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01541
3 yearsrr_ExpenseExampleYear03961
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01541
3 yearsrr_ExpenseExampleNoRedemptionYear03961
A T C | Fidelity Emerging Market Discovery Fund | Fidelity Emerging Markets Discovery Fund - Class C
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther1.00%[6]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption2.00%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockOn Class C shares redeemed less than one year after purchase.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.86%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets1.00%
Other expensesrr_OtherExpensesOverAssets0.70%[1]
Total annual operating expensesrr_ExpensesOverAssets2.56%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.11%[5]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets2.45%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01348
3 yearsrr_ExpenseExampleYear03784
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01248
3 yearsrr_ExpenseExampleNoRedemptionYear03784
A T C | Fidelity Total Emerging Markets Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total Emerging Markets Fund/Fidelity Advisor® Total Emerging Markets Fund A, T, C
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks income and capital growth.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity funds. More information about these and other discounts is available from your investment professional and in the Fund Distribution section beginning on page (Click Here) of the prospectus.

Expense Breakpoint Discounts [Text]rr_ExpenseBreakpointDiscountsYou may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity funds.
Expense Breakpoint, Minimum Investment Required [Amount]rr_ExpenseBreakpointMinimumInvestmentRequiredAmount50,000
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:

Expense Example by, Year, Caption [Text]rr_ExpenseExampleByYearCaptionSell All Shares
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
Expense Example, No Redemption, By Year, Caption [Text]rr_ExpenseExampleNoRedemptionByYearCaptionHold Shares
Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally invests at least 80% of the fund's assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing approximately 60% of assets in stocks and other equity securities and the remainder in bonds and other debt securities, including lower-quality debt securities, when its outlook is neutral.
  • Allocating the fund's assets across emerging markets sectors, using different Fidelity managers.
  • Allocating investments across different emerging market countries.
  • Analyzing a security's structural features and current pricing, trading opportunities, and the credit, currency, and economic risks of the security and its issuer to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Lower-quality debt securities (those of less than investment-grade quality) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
A T C | Fidelity Total Emerging Markets Fund | Fidelity Total Emerging Markets Fund - Class A
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther none [4]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption1.50%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockClass A and Class T purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class T purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.81%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets0.25%
Other expensesrr_OtherExpensesOverAssets0.81%[1]
Total annual operating expensesrr_ExpensesOverAssets1.87%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.22%[7]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.65%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01733
3 yearsrr_ExpenseExampleYear031,104
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01733
3 yearsrr_ExpenseExampleNoRedemptionYear031,104
A T C | Fidelity Total Emerging Markets Fund | Fidelity Total Emerging Markets Fund - Class T
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther none [4]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption1.50%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockClass A and Class T purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class T purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.81%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets0.50%
Other expensesrr_OtherExpensesOverAssets0.81%[1]
Total annual operating expensesrr_ExpensesOverAssets2.12%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.22%[7]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.90%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01536
3 yearsrr_ExpenseExampleYear03965
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01536
3 yearsrr_ExpenseExampleNoRedemptionYear03965
A T C | Fidelity Total Emerging Markets Fund | Fidelity Total Emerging Markets Fund - Class C
 
Shareholder feesrr_ShareholderFeesAbstract 
Maximum sales charge (load) on purchases (as a % of offering price)rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds)rr_MaximumDeferredSalesChargeOverOther1.00%[6]
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption1.50%
Expenses Deferred Charges [Text Block]rr_ExpensesDeferredChargesTextBlockOn Class C shares redeemed less than one year after purchase.
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.81%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets1.00%
Other expensesrr_OtherExpensesOverAssets0.81%[1]
Total annual operating expensesrr_ExpensesOverAssets2.62%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.22%[7]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets2.40%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01343
3 yearsrr_ExpenseExampleYear03789
Expense Example, No Redemptionrr_ExpenseExampleNoRedemptionAbstract 
1 yearrr_ExpenseExampleNoRedemptionYear01243
3 yearsrr_ExpenseExampleNoRedemptionYear03789
Inst | Fidelity Emerging Market Discovery Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Markets Discovery Fund/Fidelity Advisor® Emerging Markets Discovery Fund Institutional
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks capital appreciation.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlockThe following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in either "growth" stocks or "value" stocks or both.
  • Allocating investments across different emerging market countries.
  • Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
  • Mid Cap Investing. The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
  • Small Cap Investing. The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.

In addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Nondiversified Status [Text]rr_RiskNondiversifiedStatusIn addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.
Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
Inst | Fidelity Emerging Market Discovery Fund | Fidelity Emerging Markets Discovery Fund - Institutional
 
Shareholder feesrr_ShareholderFeesAbstract 
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption2.00%
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.86%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets none
Other expensesrr_OtherExpensesOverAssets0.65%[1]
Total annual operating expensesrr_ExpensesOverAssets1.51%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.06%[8]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.45%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01148
3 yearsrr_ExpenseExampleYear03470
Inst | Fidelity Total Emerging Markets Fund
 
Risk/Return:rr_RiskReturnAbstract 
Risk/Return [Heading]rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total Emerging Markets Fund/Fidelity Advisor® Total Emerging Markets Fund Institutional
Objective [Heading]rr_ObjectiveHeadingInvestment Objective
Objective, Primary [Text Block]rr_ObjectivePrimaryTextBlockThe fund seeks income and capital growth.
Fee Tablefit744822_FundFeesAndExpensesAbstract 
Expense [Heading]rr_ExpenseHeadingFee Table
Expense Narrative [Text Block]rr_ExpenseNarrativeTextBlockThe following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.
Shareholder feesrr_ShareholderFeesAbstract 
Shareholder Fees Caption [Text]rr_ShareholderFeesCaptionShareholder fees (fees paid directly from your investment)
Annual class operating expensesrr_OperatingExpensesAbstract 
Operating Expenses Caption [Text]rr_OperatingExpensesCaptionAnnual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Other Expenses, New Fund, Based on Estimates [Text]rr_OtherExpensesNewFundBasedOnEstimatesBased on estimated amounts for the current fiscal year.
Fee Waiver or Reimbursement over Assets, Date of Terminationrr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationDecember 31, 2012
Expense Examplerr_ExpenseExampleAbstract 
Expense Example Narrative [Text Block]rr_ExpenseExampleNarrativeTextBlock

This example helps compare the cost of investing in the fund with the cost of investing in other mutual funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

Portfolio Turnoverfit744822_PortfolioTurnoverAltAbstract 
Portfolio Turnover [Heading]rr_PortfolioTurnoverHeadingPortfolio Turnover
Portfolio Turnover [Text Block]rr_PortfolioTurnoverTextBlockThe fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its 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 operating expenses or in the example, affect the fund's performance.
Strategy [Heading]rr_StrategyHeadingPrincipal Investment Strategies
Strategy Narrative [Text Block]rr_StrategyNarrativeTextBlock
  • Normally invests at least 80% of the fund's assets in securities of issuers in emerging markets (countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar emerging characteristics) and other investments that are tied economically to emerging markets.
  • Normally investing approximately 60% of assets in stocks and other equity securities and the remainder in bonds and other debt securities, including lower-quality debt securities, when its outlook is neutral.
  • Allocating the fund's assets across emerging markets sectors, using different Fidelity managers.
  • Allocating investments across different emerging market countries.
  • Analyzing a security's structural features and current pricing, trading opportunities, and the credit, currency, and economic risks of the security and its issuer to select investments.
Risk [Heading]rr_RiskHeadingPrincipal Investment Risks
Risk Narrative [Text Block]rr_RiskNarrativeTextBlock
  • Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.
  • Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.
  • Foreign and Emerging Market Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
  • Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.
  • Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Lower-quality debt securities (those of less than investment-grade quality) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]rr_RiskNotInsuredDepositoryInstitutionAn investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]rr_RiskLoseMoneyYou could lose money by investing in the fund.
Performancefit744822_FundPastPerformanceAbstract 
Bar Chart and Performance Table [Heading]rr_BarChartAndPerformanceTableHeadingPerformance
Performance One Year or Less [Text]rr_PerformanceOneYearOrLessPerformance history will be available for the fund after the fund has been in operation for one calendar year.
Inst | Fidelity Total Emerging Markets Fund | Fidelity Total Emerging Markets Fund - Institutional
 
Shareholder feesrr_ShareholderFeesAbstract 
Redemption fee on shares held less than 90 days (as a % of amount redeemed)rr_RedemptionFeeOverRedemption1.50%
Annual class operating expensesrr_OperatingExpensesAbstract 
Management feerr_ManagementFeesOverAssets0.81%
Distribution and/or Service (12b-1) feesrr_DistributionAndService12b1FeesOverAssets none
Other expensesrr_OtherExpensesOverAssets0.76%[1]
Total annual operating expensesrr_ExpensesOverAssets1.57%
Fee waiver and/or expense reimbursementrr_FeeWaiverOrReimbursementOverAssets0.17%[9]
Total annual fund operating expenses after fee waiver and/or expense reimbursementrr_NetExpensesOverAssets1.40%
Expense Examplerr_ExpenseExampleAbstract 
1 yearrr_ExpenseExampleYear01143
3 yearsrr_ExpenseExampleYear03 475
[1]Based on estimated amounts for the current fiscal year.
[2]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 1.45%. This arrangement will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue this arrangement at any time.
[3]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse the class of shares of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 1.40%. This arrangement will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue this arrangement at any time.
[4]Class A and Class T purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class T purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 1.00% or 0.25%, respectively.
[5]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Class A, Class T, and Class C of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed the following rates: Class A: 1.70%, Class T: 1.95%, Class C: 2.45%. These arrangements will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue these arrangements at any time.
[6]On Class C shares redeemed less than one year after purchase.
[7]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Class A, Class T, and Class C of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of their respective average net assets, exceed the following rates: Class A: 1.65%, Class T: 1.90%, Class C: 2.40%. These arrangements will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue these arrangements at any time.
[8]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 1.45%. This arrangement will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue this arrangement at any time.
[9]Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Institutional Class of the fund to the extent that total operating expenses (excluding interest, taxes, certain securities lending costs, brokerage commissions, extraordinary expenses, and acquired fund fees and expenses, if any), as a percentage of its average net assets, exceed 1.40%. This arrangement will remain in effect through December 31, 2012, after which date FMR, in its sole discretion, may discontinue this arrangement at any time.