XML 23 R360.htm IDEA: XBRL DOCUMENT v2.4.0.6
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Oct. 31, 2011
Registrant Name dei_EntityRegistrantName FIDELITY INVESTMENT TRUST
Central Index Key dei_EntityCentralIndexKey 0000744822
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Dec. 30, 2011
Document Effective Date dei_DocumentEffectiveDate Dec. 30, 2011
Prospectus Date rr_ProspectusDate Dec. 30, 2011
Fidelity International Capital Appreciation Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® International Capital Appreciation Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.78% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.38%
Total annual operating expenses rr_ExpensesOverAssets 1.16%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 118
3 years rr_ExpenseExampleYear03 368
5 years rr_ExpenseExampleYear05 638
10 years rr_ExpenseExampleYear10 1,409
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 254% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 254.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

2001 rr_AnnualReturn2001 (8.86%)
2002 rr_AnnualReturn2002 (11.02%)
2003 rr_AnnualReturn2003 42.73%
2004 rr_AnnualReturn2004 10.27%
2005 rr_AnnualReturn2005 13.88%
2006 rr_AnnualReturn2006 15.44%
2007 rr_AnnualReturn2007 5.20%
2008 rr_AnnualReturn2008 (50.67%)
2009 rr_AnnualReturn2009 55.18%
2010 rr_AnnualReturn2010 15.87%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.99%June 30, 2009
Lowest Quarter Return-26.27%September 30, 2008
Year-to-Date Return-19.32%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.99%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.27%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (19.32%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Fidelity International Capital Appreciation Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 15.87%
Past 5 years rr_AverageAnnualReturnYear05 1.50%
Past 10 years rr_AverageAnnualReturnYear10 4.59%
Fidelity International Capital Appreciation Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 15.51%
Past 5 years rr_AverageAnnualReturnYear05 0.08%
Past 10 years rr_AverageAnnualReturnYear10 3.68%
Fidelity International Capital Appreciation Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.72%
Past 5 years rr_AverageAnnualReturnYear05 0.93%
Past 10 years rr_AverageAnnualReturnYear10 3.82%
Fidelity International Capital Appreciation Fund | MSCI® ACWI® (All Country World Index) ex USA Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® (All Country World Index) ex USA Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 11.29%
Past 5 years rr_AverageAnnualReturnYear05 4.99%
Past 10 years rr_AverageAnnualReturnYear10 5.73%
Fidelity Emerging Asia Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Emerging Asia Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.49% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.33%
Total annual operating expenses rr_ExpensesOverAssets 0.82%
Expense Example rr_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:
1 year rr_ExpenseExampleYear01 84
3 years rr_ExpenseExampleYear03 262
5 years rr_ExpenseExampleYear05 455
10 years rr_ExpenseExampleYear10 1,014
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 115% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 115.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Asian emerging market issuers and other investments that are tied economically to Asian emerging markets.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Asian countries with emerging markets.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Asian emerging market issuers and other investments that are tied economically to Asian emerging markets.
Risk [Heading] rr_RiskHeading Principal 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.
  • Geographic Concentration in Asia. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Asia, the fund's performance is expected to be closely tied to social, political, and economic conditions within Asia and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Prior to December 1, 2010, the fund operated under certain different investment policies and compared its performance to a different index. The fund's historical performance may not represent its current investment policies. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
2001 rr_AnnualReturn2001 (3.68%)
2002 rr_AnnualReturn2002 (11.35%)
2003 rr_AnnualReturn2003 52.34%
2004 rr_AnnualReturn2004 13.59%
2005 rr_AnnualReturn2005 33.56%
2006 rr_AnnualReturn2006 37.19%
2007 rr_AnnualReturn2007 55.39%
2008 rr_AnnualReturn2008 (51.89%)
2009 rr_AnnualReturn2009 39.20%
2010 rr_AnnualReturn2010 22.78%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return29.99%December 31, 2001
Lowest Quarter Return-22.08%September 30, 2001
Year-to-Date Return-20.25%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.99%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2001
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.08%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2001
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.25%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Market Index Changed rr_PerformanceTableMarketIndexChanged Effective December 1, 2010, the fund began comparing its performance to the MSCI® AC (All Country) Asia ex Japan Index rather than the MSCI AC (All Country) Far East ex Japan Index because the MSCI AC (All Country) Asia ex Japan Index conforms more closely to the fund's investment strategies.
Fidelity Emerging Asia Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Asia Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 22.78%
Past 5 years rr_AverageAnnualReturnYear05 11.88%
Past 10 years rr_AverageAnnualReturnYear10 13.22%
Fidelity Emerging Asia Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Asia Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 22.44%
Past 5 years rr_AverageAnnualReturnYear05 11.04%
Past 10 years rr_AverageAnnualReturnYear10 12.78%
Fidelity Emerging Asia Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Asia Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 15.28%
Past 5 years rr_AverageAnnualReturnYear05 10.15%
Past 10 years rr_AverageAnnualReturnYear10 11.86%
Fidelity Emerging Asia Fund | MSCI® AC (All Country) Asia ex Japan Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® AC (All Country) Asia ex Japan Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 19.93%
Past 5 years rr_AverageAnnualReturnYear05 13.19%
Past 10 years rr_AverageAnnualReturnYear10 13.31%
Fidelity Emerging Asia Fund | MSCI AC (All Country) Far East ex Japan Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI AC (All Country) Far East ex Japan Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 19.54%
Past 5 years rr_AverageAnnualReturnYear05 12.47%
Past 10 years rr_AverageAnnualReturnYear10 12.66%
Fidelity Emerging Asia Fund | Fidelity Emerging Asia Fund Linked Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Fidelity Emerging Asia Fund Linked Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 19.84%
Past 5 years rr_AverageAnnualReturnYear05 12.53%
Past 10 years rr_AverageAnnualReturnYear10 12.68%
Fidelity Europe Capital Appreciation Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Europe Capital Appreciation Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.68% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.34%
Total annual operating expenses rr_ExpensesOverAssets 1.02%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 104
3 years rr_ExpenseExampleYear03 325
5 years rr_ExpenseExampleYear05 563
10 years rr_ExpenseExampleYear10 1,248
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 116% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 116.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of European issuers and other investments that are tied economically to Europe.
  • Normally investing primarily in common stocks.
  • Allocating investments across different European 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of European issuers and other investments that are tied economically to Europe.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Europe. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

2001 rr_AnnualReturn2001 (13.11%)
2002 rr_AnnualReturn2002 (15.01%)
2003 rr_AnnualReturn2003 36.87%
2004 rr_AnnualReturn2004 16.41%
2005 rr_AnnualReturn2005 16.20%
2006 rr_AnnualReturn2006 35.45%
2007 rr_AnnualReturn2007 14.76%
2008 rr_AnnualReturn2008 (46.26%)
2009 rr_AnnualReturn2009 32.08%
2010 rr_AnnualReturn2010 8.38%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return23.54%June 30, 2009
Lowest Quarter Return-22.82%September 30, 2002
Year-to-Date Return-21.17%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 23.54%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.82%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2002
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (21.17%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Fidelity Europe Capital Appreciation Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 8.38%
Past 5 years rr_AverageAnnualReturnYear05 3.64%
Past 10 years rr_AverageAnnualReturnYear10 5.04%
Fidelity Europe Capital Appreciation Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 8.38%
Past 5 years rr_AverageAnnualReturnYear05 2.62%
Past 10 years rr_AverageAnnualReturnYear10 4.20%
Fidelity Europe Capital Appreciation Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Capital Appreciation Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 5.81%
Past 5 years rr_AverageAnnualReturnYear05 3.16%
Past 10 years rr_AverageAnnualReturnYear10 4.30%
Fidelity Europe Capital Appreciation Fund | MSCI® Europe Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Europe Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 4.13%
Past 5 years rr_AverageAnnualReturnYear05 3.10%
Past 10 years rr_AverageAnnualReturnYear10 3.48%
Fidelity Europe Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Europe Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital over the long term.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.81% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.29%
Total annual operating expenses rr_ExpensesOverAssets 1.10%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 112
3 years rr_ExpenseExampleYear03 350
5 years rr_ExpenseExampleYear05 606
10 years rr_ExpenseExampleYear10 1,340
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 117% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 117.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of European issuers and other investments that are tied economically to Europe.
  • Normally investing primarily in common stocks.
  • Allocating investments across different European 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of European issuers and other investments that are tied economically to Europe.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Europe. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

2001 rr_AnnualReturn2001 (16.03%)
2002 rr_AnnualReturn2002 (25.46%)
2003 rr_AnnualReturn2003 46.91%
2004 rr_AnnualReturn2004 28.95%
2005 rr_AnnualReturn2005 18.17%
2006 rr_AnnualReturn2006 25.18%
2007 rr_AnnualReturn2007 16.41%
2008 rr_AnnualReturn2008 (44.02%)
2009 rr_AnnualReturn2009 31.65%
2010 rr_AnnualReturn2010 8.56%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return29.36%June 30, 2003
Lowest Quarter Return-28.01%September 30, 2002
Year-to-Date Return-21.01%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.36%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2003
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (28.01%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2002
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (21.01%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Fidelity Europe Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 8.56%
Past 5 years rr_AverageAnnualReturnYear05 3.12%
Past 10 years rr_AverageAnnualReturnYear10 5.03%
Fidelity Europe Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 8.60%
Past 5 years rr_AverageAnnualReturnYear05 2.33%
Past 10 years rr_AverageAnnualReturnYear10 4.32%
Fidelity Europe Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Europe Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 6.40%
Past 5 years rr_AverageAnnualReturnYear05 2.78%
Past 10 years rr_AverageAnnualReturnYear10 4.33%
Fidelity Europe Fund | MSCI® Europe Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Europe Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 4.13%
Past 5 years rr_AverageAnnualReturnYear05 3.10%
Past 10 years rr_AverageAnnualReturnYear10 3.48%
Fidelity Japan Smaller Companies Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Japan Smaller Companies Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.34%
Total annual operating expenses rr_ExpensesOverAssets 1.05%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 107
3 years rr_ExpenseExampleYear03 334
5 years rr_ExpenseExampleYear05 579
10 years rr_ExpenseExampleYear10 1,283
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 133% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 133.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Japanese issuers, and other investments that are tied economically to Japan, with smaller market capitalizations (which, for purposes of this fund, are those companies with market capitalizations similar to companies in the Russell/Nomura Mid-Small Cap Index or the Japanese Association of Securities Dealers Automated Quotations Index (JASDAQ)).
  • Potentially investing in securities of Japanese issuers with larger market capitalizations.
  • Normally investing primarily in common stocks.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Japanese issuers, and other investments that are tied economically to Japan, with smaller market capitalizations (which, for purposes of this fund, are those companies with market capitalizations similar to companies in the Russell/Nomura Mid-Small Cap Index or the Japanese Association of Securities Dealers Automated Quotations Index (JASDAQ)).
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Japan. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Japan, the fund's performance is expected to be closely tied to social, political, and economic conditions within Japan and to be more volatile than the performance of more geographically diversified funds.
  • 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

2001 rr_AnnualReturn2001 (20.05%)
2002 rr_AnnualReturn2002 0.94%
2003 rr_AnnualReturn2003 60.89%
2004 rr_AnnualReturn2004 22.29%
2005 rr_AnnualReturn2005 41.36%
2006 rr_AnnualReturn2006 (21.54%)
2007 rr_AnnualReturn2007 (12.35%)
2008 rr_AnnualReturn2008 (34.49%)
2009 rr_AnnualReturn2009 18.08%
2010 rr_AnnualReturn2010 12.25%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return41.19%June 30, 2009
Lowest Quarter Return-20.08%March 31, 2009
Year-to-Date Return-6.31%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 41.19%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.08%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2009
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (6.31%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Fidelity Japan Smaller Companies Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Smaller Companies Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 12.25%
Past 5 years rr_AverageAnnualReturnYear05 (9.80%)
Past 10 years rr_AverageAnnualReturnYear10 2.97%
Fidelity Japan Smaller Companies Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Smaller Companies Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 12.06%
Past 5 years rr_AverageAnnualReturnYear05 (10.00%)
Past 10 years rr_AverageAnnualReturnYear10 2.77%
Fidelity Japan Smaller Companies Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Smaller Companies Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 8.36%
Past 5 years rr_AverageAnnualReturnYear05 (7.99%)
Past 10 years rr_AverageAnnualReturnYear10 2.65%
Fidelity Japan Smaller Companies Fund | Russell/Nomura Mid-Small Cap Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Russell/Nomura Mid-Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 17.00%
Past 5 years rr_AverageAnnualReturnYear05 (3.17%)
Past 10 years rr_AverageAnnualReturnYear10 3.90%
Fidelity Japan Smaller Companies Fund | Fidelity Japan Smaller Companies Fund Linked Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Fidelity Japan Smaller Companies Fund Linked Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 17.00%
Past 5 years rr_AverageAnnualReturnYear05 (4.57%)
Past 10 years rr_AverageAnnualReturnYear10 5.19%
Fidelity Nordic Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Nordic Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.34%
Total annual operating expenses rr_ExpensesOverAssets 1.05%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 107
3 years rr_ExpenseExampleYear03 334
5 years rr_ExpenseExampleYear05 579
10 years rr_ExpenseExampleYear10 1,283
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 265% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 265.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Danish, Finnish, Norwegian, and Swedish issuers and other investments that are tied economically to the Nordic region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Nordic countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Nordic market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Nordic market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Nordic Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the Nordic region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the Nordic region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

2001 rr_AnnualReturn2001 (27.89%)
2002 rr_AnnualReturn2002 (18.27%)
2003 rr_AnnualReturn2003 38.82%
2004 rr_AnnualReturn2004 32.72%
2005 rr_AnnualReturn2005 18.50%
2006 rr_AnnualReturn2006 36.67%
2007 rr_AnnualReturn2007 23.22%
2008 rr_AnnualReturn2008 (55.96%)
2009 rr_AnnualReturn2009 47.49%
2010 rr_AnnualReturn2010 26.49%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return31.00%June 30, 2009
Lowest Quarter Return-30.46%September 30, 2008
Year-to-Date Return-23.03%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 31.00%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.46%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (23.03%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Fidelity Nordic Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Nordic Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 26.49%
Past 5 years rr_AverageAnnualReturnYear05 6.71%
Past 10 years rr_AverageAnnualReturnYear10 5.94%
Fidelity Nordic Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Nordic Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 26.43%
Past 5 years rr_AverageAnnualReturnYear05 6.24%
Past 10 years rr_AverageAnnualReturnYear10 5.53%
Fidelity Nordic Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Nordic Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 17.52%
Past 5 years rr_AverageAnnualReturnYear05 5.88%
Past 10 years rr_AverageAnnualReturnYear10 5.21%
Fidelity Nordic Fund | FTSE Capped Nordic Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel FTSE Capped Nordic Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 28.00%
Past 5 years rr_AverageAnnualReturnYear05 9.43%
Past 10 years rr_AverageAnnualReturnYear10 5.98%
Fidelity Pacific Basin Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund:
Fidelity® Pacific Basin Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital over the long term.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses (expenses that you pay each year as a % of the value of your investment)
Management fee rr_ManagementFeesOverAssets 0.82% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.32%
Total annual operating expenses rr_ExpensesOverAssets 1.14%
Expense Example rr_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:

1 year rr_ExpenseExampleYear01 116
3 years rr_ExpenseExampleYear03 362
5 years rr_ExpenseExampleYear05 628
10 years rr_ExpenseExampleYear10 1,386
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 59% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 59.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Pacific Basin issuers and other investments that are tied economically to the Pacific Basin.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Pacific Basin 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Pacific Basin issuers and other investments that are tied economically to the Pacific Basin.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Pacific Basin. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the Pacific Basin, the fund's performance is expected to be closely tied to social, political, and economic conditions within the Pacific Basin and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
2001 rr_AnnualReturn2001 (19.90%)
2002 rr_AnnualReturn2002 (7.87%)
2003 rr_AnnualReturn2003 38.69%
2004 rr_AnnualReturn2004 14.08%
2005 rr_AnnualReturn2005 32.52%
2006 rr_AnnualReturn2006 16.16%
2007 rr_AnnualReturn2007 25.23%
2008 rr_AnnualReturn2008 (55.76%)
2009 rr_AnnualReturn2009 59.32%
2010 rr_AnnualReturn2010 32.80%
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return40.87%June 30, 2009
Lowest Quarter Return-26.67%September 30, 2008
Year-to-Date Return-18.30%September 30, 2011
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 40.87%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.67%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.30%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Fidelity Pacific Basin Fund | Return Before Taxes
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Pacific Basin Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 32.80%
Past 5 years rr_AverageAnnualReturnYear05 6.37%
Past 10 years rr_AverageAnnualReturnYear10 7.74%
Fidelity Pacific Basin Fund | Return After Taxes on Distributions
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Pacific Basin Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 31.55%
Past 5 years rr_AverageAnnualReturnYear05 5.29%
Past 10 years rr_AverageAnnualReturnYear10 7.15%
Fidelity Pacific Basin Fund | Return After Taxes on Distributions and Sale of Fund Shares
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Pacific Basin Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 21.56%
Past 5 years rr_AverageAnnualReturnYear05 5.28%
Past 10 years rr_AverageAnnualReturnYear10 6.73%
Fidelity Pacific Basin Fund | MSCI® AC (All Country) Pacific Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® AC (All Country) Pacific Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 16.78%
Past 5 years rr_AverageAnnualReturnYear05 4.14%
Past 10 years rr_AverageAnnualReturnYear10 6.12%
Retail | Fidelity Diversified International Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Diversified International Fund/Fidelity Diversified International Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital growth.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 45% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 45.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return22.83%June 30, 2009
Lowest Quarter Return-23.37%December 31, 2008
Year-to-Date Return-17.78%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Diversified International Fund | Class: Fidelity Diversified International Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.65% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25%
Total annual operating expenses rr_ExpensesOverAssets 0.90%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 92
3 years rr_ExpenseExampleYear03 287
5 years rr_ExpenseExampleYear05 498
10 years rr_ExpenseExampleYear10 1,108
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (12.99%)
2002 rr_AnnualReturn2002 (9.37%)
2003 rr_AnnualReturn2003 42.38%
2004 rr_AnnualReturn2004 19.66%
2005 rr_AnnualReturn2005 17.23%
2006 rr_AnnualReturn2006 22.52%
2007 rr_AnnualReturn2007 16.03%
2008 rr_AnnualReturn2008 (45.21%)
2009 rr_AnnualReturn2009 31.78%
2010 rr_AnnualReturn2010 9.65%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.83%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.37%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (17.78%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Diversified International Fund | Return Before Taxes | Class: Fidelity Diversified International Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Diversified International Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 9.65%
Past 5 years rr_AverageAnnualReturnYear05 2.39%
Past 10 years rr_AverageAnnualReturnYear10 5.89%
Retail | Fidelity Diversified International Fund | Return After Taxes on Distributions | Class: Fidelity Diversified International Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Diversified International Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 9.48%
Past 5 years rr_AverageAnnualReturnYear05 1.93%
Past 10 years rr_AverageAnnualReturnYear10 5.58%
Retail | Fidelity Diversified International Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Diversified International Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Diversified International Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 6.78%
Past 5 years rr_AverageAnnualReturnYear05 2.21%
Past 10 years rr_AverageAnnualReturnYear10 5.26%
Retail | Fidelity Diversified International Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Past 5 years rr_AverageAnnualReturnYear05 2.63%
Past 10 years rr_AverageAnnualReturnYear10 3.68%
Retail | Fidelity Overseas Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Overseas Fund/Fidelity Overseas Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 77% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 77.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.04%June 30, 2009
Lowest Quarter Return-21.87%December 31, 2008
Year-to-Date Return-20.66%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Overseas Fund | Class: Fidelity Overseas Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.46% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.27%
Total annual operating expenses rr_ExpensesOverAssets 0.73%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 75
3 years rr_ExpenseExampleYear03 233
5 years rr_ExpenseExampleYear05 406
10 years rr_ExpenseExampleYear10 906
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (20.22%)
2002 rr_AnnualReturn2002 (19.45%)
2003 rr_AnnualReturn2003 44.30%
2004 rr_AnnualReturn2004 13.54%
2005 rr_AnnualReturn2005 19.29%
2006 rr_AnnualReturn2006 20.49%
2007 rr_AnnualReturn2007 21.82%
2008 rr_AnnualReturn2008 (47.32%)
2009 rr_AnnualReturn2009 25.19%
2010 rr_AnnualReturn2010 6.59%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.04%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.87%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.66%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Overseas Fund | Return Before Taxes | Class: Fidelity Overseas Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Overseas Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 6.59%
Past 5 years rr_AverageAnnualReturnYear05 0.63%
Past 10 years rr_AverageAnnualReturnYear10 2.63%
Retail | Fidelity Overseas Fund | Return After Taxes on Distributions | Class: Fidelity Overseas Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Overseas Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 6.44%
Past 5 years rr_AverageAnnualReturnYear05 (0.24%)
Past 10 years rr_AverageAnnualReturnYear10 2.14%
Retail | Fidelity Overseas Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Overseas Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Overseas Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 4.68%
Past 5 years rr_AverageAnnualReturnYear05 0.62%
Past 10 years rr_AverageAnnualReturnYear10 2.32%
Retail | Fidelity Overseas Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Past 5 years rr_AverageAnnualReturnYear05 2.63%
Past 10 years rr_AverageAnnualReturnYear10 3.68%
Retail | Fidelity Worldwide Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Worldwide Fund/Fidelity Worldwide Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 203% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 203.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return20.92%June 30, 2003
Lowest Quarter Return-20.93%December 31, 2008
Year-to-Date Return-11.79%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Worldwide Fund | Class: Fidelity Worldwide Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.31%
Total annual operating expenses rr_ExpensesOverAssets 1.08%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 110
3 years rr_ExpenseExampleYear03 343
5 years rr_ExpenseExampleYear05 595
10 years rr_ExpenseExampleYear10 1,317
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (6.21%)
2002 rr_AnnualReturn2002 (18.83%)
2003 rr_AnnualReturn2003 38.41%
2004 rr_AnnualReturn2004 12.24%
2005 rr_AnnualReturn2005 13.57%
2006 rr_AnnualReturn2006 17.42%
2007 rr_AnnualReturn2007 18.49%
2008 rr_AnnualReturn2008 (40.24%)
2009 rr_AnnualReturn2009 28.53%
2010 rr_AnnualReturn2010 17.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.92%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2003
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.93%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (11.79%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Worldwide Fund | Return Before Taxes | Class: Fidelity Worldwide Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Worldwide Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 17.04%
Past 5 years rr_AverageAnnualReturnYear05 4.58%
Past 10 years rr_AverageAnnualReturnYear10 5.33%
Retail | Fidelity Worldwide Fund | Return After Taxes on Distributions | Class: Fidelity Worldwide Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Worldwide Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.96%
Past 5 years rr_AverageAnnualReturnYear05 3.67%
Past 10 years rr_AverageAnnualReturnYear10 4.76%
Retail | Fidelity Worldwide Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Worldwide Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Worldwide Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.31%
Past 5 years rr_AverageAnnualReturnYear05 3.84%
Past 10 years rr_AverageAnnualReturnYear10 4.59%
Retail | Fidelity Worldwide Fund | MSCI® World Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® World Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 12.16%
Past 5 years rr_AverageAnnualReturnYear05 2.83%
Past 10 years rr_AverageAnnualReturnYear10 2.66%
Retail | Fidelity Global Commodity Stock Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Global Commodity Stock Fund/Fidelity Global Commodity Stock Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination at least one year from the effective date of the prospectus
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
  • Allocating investments across different countries and regions.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Commodities Industry Concentration. The energy, metals, and agriculture industries can be significantly affected by commodity prices and consumption, world events, import and export controls, worldwide competition, government regulations, and economic conditions.
  • 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. The value of securities of smaller issuers 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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return20.28%September 30, 2010
Lowest Quarter Return-17.86%June 30, 2010
Year-to-Date Return-24.04%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity Global Commodity Stock Fund | Class: Fidelity Global Commodity Stock Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [4]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.37%
Total annual operating expenses rr_ExpensesOverAssets 1.08%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 110
3 years rr_ExpenseExampleYear03 343
5 years rr_ExpenseExampleYear05 595
10 years rr_ExpenseExampleYear10 1,317
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 18.06%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.28%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.86%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.04%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Global Commodity Stock Fund | Return Before Taxes | Class: Fidelity Global Commodity Stock Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Global Commodity Stock Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.06%
Life of class rr_AverageAnnualReturnSinceInception 37.07% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Retail | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions | Class: Fidelity Global Commodity Stock Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Global Commodity Stock Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 17.89%
Life of class rr_AverageAnnualReturnSinceInception 36.85% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Retail | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Global Commodity Stock Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Global Commodity Stock Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 12.09%
Life of class rr_AverageAnnualReturnSinceInception 32.01% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Retail | Fidelity Global Commodity Stock Fund | MSCI® ACWI® (All Country World Index) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® (All Country World Index) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 13.03%
Life of class rr_AverageAnnualReturnSinceInception 33.19% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Retail | Fidelity Global Commodity Stock Fund | MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.70%
Life of class rr_AverageAnnualReturnSinceInception 35.99% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Retail | Fidelity International Discovery Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Discovery Fund/Fidelity International Discovery Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Prior to October 1, 2004, the fund operated under certain different investment policies. The fund's historical performance may not represent its current investment policies. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return22.27%June 30, 2009
Lowest Quarter Return-21.17%September 30, 2008
Year-to-Date Return-18.10%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity International Discovery Fund | Class: Fidelity International Discovery Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.27%
Total annual operating expenses rr_ExpensesOverAssets 0.97%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 99
3 years rr_ExpenseExampleYear03 309
5 years rr_ExpenseExampleYear05 536
10 years rr_ExpenseExampleYear10 1,190
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (17.43%)
2002 rr_AnnualReturn2002 (9.87%)
2003 rr_AnnualReturn2003 43.34%
2004 rr_AnnualReturn2004 19.05%
2005 rr_AnnualReturn2005 18.55%
2006 rr_AnnualReturn2006 24.22%
2007 rr_AnnualReturn2007 18.98%
2008 rr_AnnualReturn2008 (44.28%)
2009 rr_AnnualReturn2009 30.07%
2010 rr_AnnualReturn2010 11.00%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.27%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.17%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.10%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity International Discovery Fund | Return Before Taxes | Class: Fidelity International Discovery Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Discovery Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 11.00%
Past 5 years rr_AverageAnnualReturnYear05 3.52%
Past 10 years rr_AverageAnnualReturnYear10 6.00%
Retail | Fidelity International Discovery Fund | Return After Taxes on Distributions | Class: Fidelity International Discovery Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Discovery Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 10.74%
Past 5 years rr_AverageAnnualReturnYear05 3.19%
Past 10 years rr_AverageAnnualReturnYear10 5.70%
Retail | Fidelity International Discovery Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity International Discovery Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Discovery Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 7.62%
Past 5 years rr_AverageAnnualReturnYear05 3.10%
Past 10 years rr_AverageAnnualReturnYear10 5.28%
Retail | Fidelity International Discovery Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Past 5 years rr_AverageAnnualReturnYear05 2.63%
Past 10 years rr_AverageAnnualReturnYear10 3.68%
Retail | Fidelity International Growth Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Growth Fund/Fidelity International Growth Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Differs from ratios of expenses to average net assets in the financial highlights section of the prospectus because of acquired fund fees and expenses.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Normally investing in companies Fidelity Management & Research Company (FMR) believes have above-average growth potential (stocks of these companies are often called "growth" stocks).
  • Allocating investments across countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return20.69%June 30, 2009
Lowest Quarter Return-21.67%September 30, 2008
Year-to-Date Return-15.22%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity International Growth Fund | Class: Fidelity International Growth Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.72%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 1.53% [6]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.33% [7]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 122
3 years rr_ExpenseExampleYear03 451
5 years rr_ExpenseExampleYear05 803
10 years rr_ExpenseExampleYear10 1,796
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (41.29%)
2009 rr_AnnualReturn2009 36.50%
2010 rr_AnnualReturn2010 16.94%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.69%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.67%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.22%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity International Growth Fund | Return Before Taxes | Class: Fidelity International Growth Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Growth Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.94%
Life of class rr_AverageAnnualReturnSinceInception (3.40%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity International Growth Fund | Return After Taxes on Distributions | Class: Fidelity International Growth Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Growth Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.88%
Life of class rr_AverageAnnualReturnSinceInception (3.41%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity International Growth Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity International Growth Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Growth Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.31%
Life of class rr_AverageAnnualReturnSinceInception (2.77%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity International Growth Fund | MSCI® EAFE® (Europe, Australasia, Far East) Growth Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Growth Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 12.35%
Life of class rr_AverageAnnualReturnSinceInception (6.61%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity Total International Equity Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total International Equity Fund/Fidelity Total International Equity Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in equity securities.
  • Normally investing primarily in common stocks.
  • Using the MSCI® ACWI® (All Country World Index) ex USA Index as a guide in allocating investments across foreign developed and emerging markets, including investments in "growth" stocks, "value" stocks, and securities of companies with small market capitalizations.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return26.51%June 30, 2009
Lowest Quarter Return-23.52%September 30, 2008
Year-to-Date Return-18.58%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Total International Equity Fund | Class: Fidelity Total International Equity Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.73%
Total annual operating expenses rr_ExpensesOverAssets 1.42% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.22% [7]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 122
3 years rr_ExpenseExampleYear03 428
5 years rr_ExpenseExampleYear05 755
10 years rr_ExpenseExampleYear10 1,683
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (47.23%)
2009 rr_AnnualReturn2009 41.17%
2010 rr_AnnualReturn2010 12.52%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.51%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.52%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.58%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Total International Equity Fund | Return Before Taxes | Class: Fidelity Total International Equity Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Total International Equity Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 12.52%
Life of class rr_AverageAnnualReturnSinceInception (7.08%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity Total International Equity Fund | Return After Taxes on Distributions | Class: Fidelity Total International Equity Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Total International Equity Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 12.38%
Life of class rr_AverageAnnualReturnSinceInception (7.13%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity Total International Equity Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Total International Equity Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Total International Equity Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 8.64%
Life of class rr_AverageAnnualReturnSinceInception (5.81%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity Total International Equity Fund | MSCI® ACWI® ex USA Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® ex USA Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 11.29%
Life of class rr_AverageAnnualReturnSinceInception (6.17%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Retail | Fidelity International Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Value Fund/Fidelity International Value Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 83% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 83.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in securities of companies that Fidelity Management & Research Company (FMR) believes are undervalued in the marketplace in relation to factors such as assets, sales, earnings, growth potential, or cash flow, or in relation to securities of other companies in the same industry (stocks of these companies are often called "value" stocks).
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return29.35%June 30, 2009
Lowest Quarter Return-22.91%December 31, 2008
Year-to-Date Return-19.90%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity International Value Fund | Class: Fidelity International Value Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.40%
Total annual operating expenses rr_ExpensesOverAssets 1.04%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 106
3 years rr_ExpenseExampleYear03 331
5 years rr_ExpenseExampleYear05 574
10 years rr_ExpenseExampleYear10 1,271
Annual Total Returns rr_BarChartTableAbstract  
2007 rr_AnnualReturn2007 9.50%
2008 rr_AnnualReturn2008 (46.72%)
2009 rr_AnnualReturn2009 36.11%
2010 rr_AnnualReturn2010 5.19%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.35%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.91%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (19.90%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity International Value Fund | Return Before Taxes | Class: Fidelity International Value Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Value Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 5.19%
Life of class rr_AverageAnnualReturnSinceInception (1.40%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Retail | Fidelity International Value Fund | Return After Taxes on Distributions | Class: Fidelity International Value Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Value Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 4.61%
Life of class rr_AverageAnnualReturnSinceInception (1.83%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Retail | Fidelity International Value Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity International Value Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Value Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 3.89%
Life of class rr_AverageAnnualReturnSinceInception (1.14%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Retail | Fidelity International Value Fund | MSCI® EAFE® (Europe, Australasia, Far East) Value Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Value Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 3.40%
Life of class rr_AverageAnnualReturnSinceInception (0.80%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Retail | Fidelity Canada Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Canada Fund/Fidelity Canada Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital over the long term.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 104% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 104.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Canadian issuers and other investments that are tied economically to Canada.
  • Potentially investing in securities of U.S. issuers.
  • Normally investing primarily in common stocks.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Canada. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Canada, the fund's performance is expected to be closely tied to social, political, and economic conditions within Canada and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.96%June 30, 2009
Lowest Quarter Return-30.45%December 31, 2008
Year-to-Date Return-17.01%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity Canada Fund | Class: Fidelity Canada Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25%
Total annual operating expenses rr_ExpensesOverAssets 0.82%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 84
3 years rr_ExpenseExampleYear03 262
5 years rr_ExpenseExampleYear05 455
10 years rr_ExpenseExampleYear10 1,014
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (9.61%)
2002 rr_AnnualReturn2002 (4.27%)
2003 rr_AnnualReturn2003 51.91%
2004 rr_AnnualReturn2004 23.92%
2005 rr_AnnualReturn2005 27.89%
2006 rr_AnnualReturn2006 15.04%
2007 rr_AnnualReturn2007 35.02%
2008 rr_AnnualReturn2008 (42.64%)
2009 rr_AnnualReturn2009 39.63%
2010 rr_AnnualReturn2010 21.84%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.96%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.45%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (17.01%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Canada Fund | Return Before Taxes | Class: Fidelity Canada Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Canada Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 21.84%
Past 5 years rr_AverageAnnualReturnYear05 8.67%
Past 10 years rr_AverageAnnualReturnYear10 12.19%
Retail | Fidelity Canada Fund | Return After Taxes on Distributions | Class: Fidelity Canada Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Canada Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 21.47%
Past 5 years rr_AverageAnnualReturnYear05 8.29%
Past 10 years rr_AverageAnnualReturnYear10 12.00%
Retail | Fidelity Canada Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Canada Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Canada Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.48%
Past 5 years rr_AverageAnnualReturnYear05 7.50%
Past 10 years rr_AverageAnnualReturnYear10 10.98%
Retail | Fidelity Canada Fund | S&P®/TSX Composite Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel S&P®/TSX Composite Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 24.08%
Past 5 years rr_AverageAnnualReturnYear05 10.01%
Past 10 years rr_AverageAnnualReturnYear10 11.06%
Retail | Fidelity China Region Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® China Region Fund/Fidelity China Region Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 87% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 87.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Hong Kong, Taiwanese, and Chinese issuers and other investments that are tied economically to the China region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different China region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in the China Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the China region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the China region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.41%June 30, 2009
Lowest Quarter Return-21.87%September 30, 2008
Year-to-Date Return-24.27%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity China Region Fund | Class: Fidelity China Region Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.33%
Total annual operating expenses rr_ExpensesOverAssets 1.04%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 106
3 years rr_ExpenseExampleYear03 331
5 years rr_ExpenseExampleYear05 574
10 years rr_ExpenseExampleYear10 1,271
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (10.49%)
2002 rr_AnnualReturn2002 (15.08%)
2003 rr_AnnualReturn2003 45.49%
2004 rr_AnnualReturn2004 11.55%
2005 rr_AnnualReturn2005 14.46%
2006 rr_AnnualReturn2006 29.67%
2007 rr_AnnualReturn2007 46.26%
2008 rr_AnnualReturn2008 (44.85%)
2009 rr_AnnualReturn2009 65.55%
2010 rr_AnnualReturn2010 18.00%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.41%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.87%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.27%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity China Region Fund | Return Before Taxes | Class: Fidelity China Region Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® China Region Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.00%
Past 5 years rr_AverageAnnualReturnYear05 15.36%
Past 10 years rr_AverageAnnualReturnYear10 11.18%
Retail | Fidelity China Region Fund | Return After Taxes on Distributions | Class: Fidelity China Region Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® China Region Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 17.80%
Past 5 years rr_AverageAnnualReturnYear05 14.66%
Past 10 years rr_AverageAnnualReturnYear10 10.65%
Retail | Fidelity China Region Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity China Region Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® China Region Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 12.00%
Past 5 years rr_AverageAnnualReturnYear05 13.41%
Past 10 years rr_AverageAnnualReturnYear10 9.84%
Retail | Fidelity China Region Fund | MSCI® Golden Dragon Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Golden Dragon Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 13.60%
Past 5 years rr_AverageAnnualReturnYear05 13.09%
Past 10 years rr_AverageAnnualReturnYear10 9.53%
Retail | Fidelity China Region Fund | Fidelity China Region Fund Linked Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Fidelity China Region Fund Linked Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 13.60%
Past 5 years rr_AverageAnnualReturnYear05 12.28%
Past 10 years rr_AverageAnnualReturnYear10 9.10%
Retail | Fidelity Emerging Markets Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Markets Fund/Fidelity Emerging Markets Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 122% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 122.00%
Strategy [Heading] rr_StrategyHeading Principal 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.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • 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.
Risk [Heading] rr_RiskHeading Principal 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return36.33%June 30, 2009
Lowest Quarter Return-34.17%December 31, 2008
Year-to-Date Return-24.21%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity Emerging Markets Fund | Class: Fidelity Emerging Markets Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 1.07%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 109
3 years rr_ExpenseExampleYear03 340
5 years rr_ExpenseExampleYear05 590
10 years rr_ExpenseExampleYear10 1,306
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (2.48%)
2002 rr_AnnualReturn2002 (6.93%)
2003 rr_AnnualReturn2003 48.80%
2004 rr_AnnualReturn2004 22.94%
2005 rr_AnnualReturn2005 44.31%
2006 rr_AnnualReturn2006 33.39%
2007 rr_AnnualReturn2007 45.06%
2008 rr_AnnualReturn2008 (60.83%)
2009 rr_AnnualReturn2009 76.00%
2010 rr_AnnualReturn2010 18.22%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 36.33%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (34.17%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.21%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Emerging Markets Fund | Return Before Taxes | Class: Fidelity Emerging Markets Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.22%
Past 5 years rr_AverageAnnualReturnYear05 9.53%
Past 10 years rr_AverageAnnualReturnYear10 14.22%
Retail | Fidelity Emerging Markets Fund | Return After Taxes on Distributions | Class: Fidelity Emerging Markets Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 18.16%
Past 5 years rr_AverageAnnualReturnYear05 9.45%
Past 10 years rr_AverageAnnualReturnYear10 14.17%
Retail | Fidelity Emerging Markets Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Emerging Markets Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 12.36%
Past 5 years rr_AverageAnnualReturnYear05 8.53%
Past 10 years rr_AverageAnnualReturnYear10 13.04%
Retail | Fidelity Emerging Markets Fund | MSCI® Emerging Markets Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Emerging Markets Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 19.20%
Past 5 years rr_AverageAnnualReturnYear05 13.11%
Past 10 years rr_AverageAnnualReturnYear10 16.23%
Retail | Fidelity Japan Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Japan Fund/Fidelity Japan Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 134% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 134.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
  • Normally investing primarily in common stocks.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Japan. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Japan, the fund's performance is expected to be closely tied to social, political, and economic conditions within Japan and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return26.58%June 30, 2009
Lowest Quarter Return-26.00%September 30, 2001
Year-to-Date Return-14.13%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Japan Fund | Class: Fidelity Japan Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.32%
Total annual operating expenses rr_ExpensesOverAssets 0.86%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 88
3 years rr_ExpenseExampleYear03 274
5 years rr_ExpenseExampleYear05 477
10 years rr_ExpenseExampleYear10 1,061
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (33.82%)
2002 rr_AnnualReturn2002 (7.36%)
2003 rr_AnnualReturn2003 37.02%
2004 rr_AnnualReturn2004 10.92%
2005 rr_AnnualReturn2005 42.68%
2006 rr_AnnualReturn2006 (5.02%)
2007 rr_AnnualReturn2007 (2.68%)
2008 rr_AnnualReturn2008 (36.81%)
2009 rr_AnnualReturn2009 15.33%
2010 rr_AnnualReturn2010 14.70%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.58%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.00%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2001
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.13%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Japan Fund | Return Before Taxes | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.70%
Past 5 years rr_AverageAnnualReturnYear05 (5.03%)
Past 10 years rr_AverageAnnualReturnYear10 0.27%
Retail | Fidelity Japan Fund | Return After Taxes on Distributions | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 14.20%
Past 5 years rr_AverageAnnualReturnYear05 (5.57%)
Past 10 years rr_AverageAnnualReturnYear10 (0.02%)
Retail | Fidelity Japan Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.46%
Past 5 years rr_AverageAnnualReturnYear05 (4.05%)
Past 10 years rr_AverageAnnualReturnYear10 0.32%
Retail | Fidelity Japan Fund | Tokyo Stock Price Index (TOPIX) (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Tokyo Stock Price Index (TOPIX)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.89%
Past 5 years rr_AverageAnnualReturnYear05 (2.97%)
Past 10 years rr_AverageAnnualReturnYear10 1.20%
Retail | Fidelity Latin America Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Latin America Fund/Fidelity Latin America Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 11% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 11.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Latin American issuers and other investments that are tied economically to Latin America.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Latin American countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Latin America. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Latin America, the fund's performance is expected to be closely tied to social, political, and economic conditions within Latin America and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return36.89%June 30, 2009
Lowest Quarter Return-35.24%December 31, 2008
Year-to-Date Return-23.21%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Retail | Fidelity Latin America Fund | Class: Fidelity Latin America Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.29%
Total annual operating expenses rr_ExpensesOverAssets 1.00%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 102
3 years rr_ExpenseExampleYear03 318
5 years rr_ExpenseExampleYear05 552
10 years rr_ExpenseExampleYear10 1,225
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (6.04%)
2002 rr_AnnualReturn2002 (20.85%)
2003 rr_AnnualReturn2003 65.78%
2004 rr_AnnualReturn2004 41.11%
2005 rr_AnnualReturn2005 55.17%
2006 rr_AnnualReturn2006 44.33%
2007 rr_AnnualReturn2007 43.71%
2008 rr_AnnualReturn2008 (54.64%)
2009 rr_AnnualReturn2009 91.60%
2010 rr_AnnualReturn2010 16.49%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 36.89%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.24%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (23.21%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Latin America Fund | Return Before Taxes | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Latin America Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.49%
Past 5 years rr_AverageAnnualReturnYear05 16.00%
Past 10 years rr_AverageAnnualReturnYear10 18.95%
Retail | Fidelity Latin America Fund | Return After Taxes on Distributions | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.22%
Past 5 years rr_AverageAnnualReturnYear05 15.72%
Past 10 years rr_AverageAnnualReturnYear10 18.59%
Retail | Fidelity Latin America Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity® Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.33%
Past 5 years rr_AverageAnnualReturnYear05 14.20%
Past 10 years rr_AverageAnnualReturnYear10 17.28%
Retail | Fidelity Latin America Fund | MSCI® EM (Emerging Markets) Latin America Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Latin America Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 14.89%
Past 5 years rr_AverageAnnualReturnYear05 19.83%
Past 10 years rr_AverageAnnualReturnYear10 21.41%
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Europe, Middle East, Africa (EMEA) Fund/Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 53% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 53.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of emerging Europe, Middle East and Africa (EMEA) issuers and other investments that are tied economically to the EMEA region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different EMEA region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
Risk [Heading] rr_RiskHeading Principal 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.
  • Geographic Concentration in the EMEA Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the EMEA region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the EMEA region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return34.43%June 30, 2009
Lowest Quarter Return-11.04%June 30, 2010
Year-to-Date Return-20.00%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Class: Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.54%
Total annual operating expenses rr_ExpensesOverAssets 1.35%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 137
3 years rr_ExpenseExampleYear03 428
5 years rr_ExpenseExampleYear05 739
10 years rr_ExpenseExampleYear10 1,624
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 61.42%
2010 rr_AnnualReturn2010 25.47%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 34.43%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.04%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.00%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Class: Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 25.47%
Life of class rr_AverageAnnualReturnSinceInception (1.00%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions | Class: Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 25.38%
Life of class rr_AverageAnnualReturnSinceInception (1.08%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 16.97%
Life of class rr_AverageAnnualReturnSinceInception (0.79%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Retail | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 23.80%
Life of class rr_AverageAnnualReturnSinceInception (2.33%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Retail | Fidelity International Small Cap Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Fund/Fidelity International Small Cap Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 47% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.17% June 30, 2009
Lowest Quarter Return-25.82%September 30, 2008
Year-to-Date Return-14.82% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity International Small Cap Fund | Class: Fidelity International Small Cap Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 1.26%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 128
3 years rr_ExpenseExampleYear03 400
5 years rr_ExpenseExampleYear05 692
10 years rr_ExpenseExampleYear10 1,523
Annual Total Returns rr_BarChartTableAbstract  
2003 rr_AnnualReturn2003 80.25%
2004 rr_AnnualReturn2004 29.43%
2005 rr_AnnualReturn2005 29.47%
2006 rr_AnnualReturn2006 14.22%
2007 rr_AnnualReturn2007 13.21%
2008 rr_AnnualReturn2008 (46.54%)
2009 rr_AnnualReturn2009 45.50%
2010 rr_AnnualReturn2010 25.40%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.17%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jan. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.82%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.82%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity International Small Cap Fund | Return Before Taxes | Class: Fidelity International Small Cap Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 25.40%
Past 5 years rr_AverageAnnualReturnYear05 4.75%
Life of class rr_AverageAnnualReturnSinceInception 18.30% [12]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 2002
Retail | Fidelity International Small Cap Fund | Return After Taxes on Distributions | Class: Fidelity International Small Cap Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 24.17%
Past 5 years rr_AverageAnnualReturnYear05 3.06%
Life of class rr_AverageAnnualReturnSinceInception 16.68% [12]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 2002
Retail | Fidelity International Small Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity International Small Cap Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 16.73%
Past 5 years rr_AverageAnnualReturnYear05 3.72%
Life of class rr_AverageAnnualReturnSinceInception 16.10% [12]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 2002
Retail | Fidelity International Small Cap Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 14.17% [12]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 18, 2002
Retail | Fidelity International Small Cap Opportunities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Opportunities Fund/Fidelity International Small Cap Opportunities Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 24.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.54%June 30, 2009
Lowest Quarter Return-34.36%December 31, 2008
Year-to-Date Return-13.57%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Retail | Fidelity International Small Cap Opportunities Fund | Class: Fidelity International Small Cap Opportunities Fund
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.42%
Total annual operating expenses rr_ExpensesOverAssets 1.08%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 110
3 years rr_ExpenseExampleYear03 343
5 years rr_ExpenseExampleYear05 595
10 years rr_ExpenseExampleYear10 1,317
Annual Total Returns rr_BarChartTableAbstract  
2006 rr_AnnualReturn2006 25.72%
2007 rr_AnnualReturn2007 2.95%
2008 rr_AnnualReturn2008 (58.44%)
2009 rr_AnnualReturn2009 46.26%
2010 rr_AnnualReturn2010 23.30%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.54%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (34.36%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (13.57%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Retail | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Class: Fidelity International Small Cap Opportunities Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Opportunities Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 23.30%
Past 5 years rr_AverageAnnualReturnYear05 (0.61%)
Life of class rr_AverageAnnualReturnSinceInception 3.72% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Retail | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions | Class: Fidelity International Small Cap Opportunities Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Opportunities Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 22.97%
Past 5 years rr_AverageAnnualReturnYear05 (1.02%)
Life of class rr_AverageAnnualReturnSinceInception 3.32% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Retail | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity International Small Cap Opportunities Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity International Small Cap Opportunities Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 15.57%
Past 5 years rr_AverageAnnualReturnYear05 (0.37%)
Life of class rr_AverageAnnualReturnSinceInception 3.34% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Retail | Fidelity International Small Cap Opportunities Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 5.30% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity Worldwide Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Worldwide Fund/Fidelity Advisor® Worldwide Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 203% of the average value of its portfolio
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 203.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return15.75% September 30, 2010
Lowest Quarter Return-12.35%June 30, 2010
Year-to-Date Return-12.00% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
A T B C | Fidelity Worldwide Fund | Fidelity Worldwide Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 1.41%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 710
3 years rr_ExpenseExampleYear03 996
5 years rr_ExpenseExampleYear05 1,302
10 years rr_ExpenseExampleYear10 2,169
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 710
3 years rr_ExpenseExampleNoRedemptionYear03 996
5 years rr_ExpenseExampleNoRedemptionYear05 1,302
10 years rr_ExpenseExampleNoRedemptionYear10 2,169
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 16.71%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 15.75%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.35%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (12.00%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Worldwide Fund | Fidelity Worldwide Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 1.66%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 513
3 years rr_ExpenseExampleYear03 855
5 years rr_ExpenseExampleYear05 1,221
10 years rr_ExpenseExampleYear10 2,247
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 513
3 years rr_ExpenseExampleNoRedemptionYear03 855
5 years rr_ExpenseExampleNoRedemptionYear05 1,221
10 years rr_ExpenseExampleNoRedemptionYear10 2,247
A T B C | Fidelity Worldwide Fund | Fidelity Worldwide Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 2.16%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 719
3 years rr_ExpenseExampleYear03 976
5 years rr_ExpenseExampleYear05 1,359
10 years rr_ExpenseExampleYear10 2,213
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 219
3 years rr_ExpenseExampleNoRedemptionYear03 676
5 years rr_ExpenseExampleNoRedemptionYear05 1,159
10 years rr_ExpenseExampleNoRedemptionYear10 2,213
A T B C | Fidelity Worldwide Fund | Fidelity Worldwide Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 2.16%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 319
3 years rr_ExpenseExampleYear03 676
5 years rr_ExpenseExampleYear05 1,159
10 years rr_ExpenseExampleYear10 2,493
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 219
3 years rr_ExpenseExampleNoRedemptionYear03 676
5 years rr_ExpenseExampleNoRedemptionYear05 1,159
10 years rr_ExpenseExampleNoRedemptionYear10 2,493
A T B C | Fidelity Worldwide Fund | Return Before Taxes | Fidelity Worldwide Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.00%
Life of class rr_AverageAnnualReturnSinceInception 30.11% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | Return Before Taxes | Fidelity Worldwide Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 12.33%
Life of class rr_AverageAnnualReturnSinceInception 31.45% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | Return Before Taxes | Fidelity Worldwide Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.85%
Life of class rr_AverageAnnualReturnSinceInception 31.63% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | Return Before Taxes | Fidelity Worldwide Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.88%
Life of class rr_AverageAnnualReturnSinceInception 33.34% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | Return After Taxes on Distributions | Fidelity Worldwide Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 9.94%
Life of class rr_AverageAnnualReturnSinceInception 30.03% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Worldwide Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 6.70%
Life of class rr_AverageAnnualReturnSinceInception 26.05% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Worldwide Fund | MSCI® World Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® World Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 12.16%
Life of class rr_AverageAnnualReturnSinceInception 32.92% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
A T B C | Fidelity Global Commodity Stock Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Global Commodity Stock Fund/Fidelity Advisor® Global Commodity Stock Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination at least one year from the effective date of the prospectus
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
  • Allocating investments across different countries and regions.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Commodities Industry Concentration. The energy, metals, and agriculture industries can be significantly affected by commodity prices and consumption, world events, import and export controls, worldwide competition, government regulations, and economic conditions.
  • 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. The value of securities of smaller issuers 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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return20.16% September 30, 2010
Lowest Quarter Return-17.90%June 30, 2010
Year-to-Date Return-24.17%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
A T B C | Fidelity Global Commodity Stock Fund | Fidelity Global Commodity Stock Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [18]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 1.32%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 702
3 years rr_ExpenseExampleYear03 969
5 years rr_ExpenseExampleYear05 1,257
10 years rr_ExpenseExampleYear10 2,074
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 702
3 years rr_ExpenseExampleNoRedemptionYear03 969
5 years rr_ExpenseExampleNoRedemptionYear05 1,257
10 years rr_ExpenseExampleNoRedemptionYear10 2,074
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 17.72%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.16%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.90%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.17%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Global Commodity Stock Fund | Fidelity Global Commodity Stock Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [18]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 1.60%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 507
3 years rr_ExpenseExampleYear03 837
5 years rr_ExpenseExampleYear05 1,190
10 years rr_ExpenseExampleYear10 2,184
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 507
3 years rr_ExpenseExampleNoRedemptionYear03 837
5 years rr_ExpenseExampleNoRedemptionYear05 1,190
10 years rr_ExpenseExampleNoRedemptionYear10 2,184
A T B C | Fidelity Global Commodity Stock Fund | Fidelity Global Commodity Stock Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [18]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.40%
Total annual operating expenses rr_ExpensesOverAssets 2.11%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 714
3 years rr_ExpenseExampleYear03 961
5 years rr_ExpenseExampleYear05 1,334
10 years rr_ExpenseExampleYear10 2,145
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 214
3 years rr_ExpenseExampleNoRedemptionYear03 661
5 years rr_ExpenseExampleNoRedemptionYear05 1,134
10 years rr_ExpenseExampleNoRedemptionYear10 2,145
A T B C | Fidelity Global Commodity Stock Fund | Fidelity Global Commodity Stock Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [18]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.38%
Total annual operating expenses rr_ExpensesOverAssets 2.09%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 312
3 years rr_ExpenseExampleYear03 655
5 years rr_ExpenseExampleYear05 1,124
10 years rr_ExpenseExampleYear10 2,421
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 212
3 years rr_ExpenseExampleNoRedemptionYear03 655
5 years rr_ExpenseExampleNoRedemptionYear05 1,124
10 years rr_ExpenseExampleNoRedemptionYear10 2,421
A T B C | Fidelity Global Commodity Stock Fund | Return Before Taxes | Fidelity Global Commodity Stock Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.95%
Life of class rr_AverageAnnualReturnSinceInception 32.20% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | Return Before Taxes | Fidelity Global Commodity Stock Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 13.29%
Life of class rr_AverageAnnualReturnSinceInception 33.64% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | Return Before Taxes | Fidelity Global Commodity Stock Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 11.74%
Life of class rr_AverageAnnualReturnSinceInception 33.81% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | Return Before Taxes | Fidelity Global Commodity Stock Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 15.76%
Life of class rr_AverageAnnualReturnSinceInception 35.65% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions | Fidelity Global Commodity Stock Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 10.81%
Life of class rr_AverageAnnualReturnSinceInception 32.02% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Global Commodity Stock Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 7.41%
Life of class rr_AverageAnnualReturnSinceInception 27.77% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | MSCI® ACWI® (All Country World Index) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® (All Country World Index) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 13.03%
Life of class rr_AverageAnnualReturnSinceInception 33.19% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity Global Commodity Stock Fund | MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.70%
Life of class rr_AverageAnnualReturnSinceInception 35.99% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
A T B C | Fidelity International Discovery Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Discovery Fund/Fidelity Advisor® International Discovery Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return22.16% June 30, 2009
Lowest Quarter Return-21.20%September 30, 2008
Year-to-Date Return-18.33% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.35%
Total annual operating expenses rr_ExpensesOverAssets 1.30%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 700
3 years rr_ExpenseExampleYear03 963
5 years rr_ExpenseExampleYear05 1,247
10 years rr_ExpenseExampleYear10 2,053
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 700
3 years rr_ExpenseExampleNoRedemptionYear03 963
5 years rr_ExpenseExampleNoRedemptionYear05 1,247
10 years rr_ExpenseExampleNoRedemptionYear10 2,053
Annual Total Returns rr_BarChartTableAbstract  
2006 rr_AnnualReturn2006 24.00%
2007 rr_AnnualReturn2007 18.72%
2008 rr_AnnualReturn2008 (44.40%)
2009 rr_AnnualReturn2009 29.74%
2010 rr_AnnualReturn2010 10.69%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.16%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.20%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.33%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 1.56%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 503
3 years rr_ExpenseExampleYear03 825
5 years rr_ExpenseExampleYear05 1,170
10 years rr_ExpenseExampleYear10 2,141
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 503
3 years rr_ExpenseExampleNoRedemptionYear03 825
5 years rr_ExpenseExampleNoRedemptionYear05 1,170
10 years rr_ExpenseExampleNoRedemptionYear10 2,141
A T B C | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 2.06%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 709
3 years rr_ExpenseExampleYear03 946
5 years rr_ExpenseExampleYear05 1,308
10 years rr_ExpenseExampleYear10 2,104
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 209
3 years rr_ExpenseExampleNoRedemptionYear03 646
5 years rr_ExpenseExampleNoRedemptionYear05 1,108
10 years rr_ExpenseExampleNoRedemptionYear10 2,104
A T B C | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.35%
Total annual operating expenses rr_ExpensesOverAssets 2.05%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 308
3 years rr_ExpenseExampleYear03 643
5 years rr_ExpenseExampleYear05 1,103
10 years rr_ExpenseExampleYear10 2,379
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 208
3 years rr_ExpenseExampleNoRedemptionYear03 643
5 years rr_ExpenseExampleNoRedemptionYear05 1,103
10 years rr_ExpenseExampleNoRedemptionYear10 2,379
A T B C | Fidelity International Discovery Fund | Return Before Taxes | Fidelity International Discovery Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 4.32%
Past 5 years rr_AverageAnnualReturnYear05 2.07%
Life of class rr_AverageAnnualReturnSinceInception 5.09% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | Return Before Taxes | Fidelity International Discovery Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 6.56%
Past 5 years rr_AverageAnnualReturnYear05 2.19%
Life of class rr_AverageAnnualReturnSinceInception 5.15% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | Return Before Taxes | Fidelity International Discovery Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 4.84%
Past 5 years rr_AverageAnnualReturnYear05 2.05%
Life of class rr_AverageAnnualReturnSinceInception 5.12% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | Return Before Taxes | Fidelity International Discovery Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 8.86%
Past 5 years rr_AverageAnnualReturnYear05 2.42%
Life of class rr_AverageAnnualReturnSinceInception 5.29% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | Return After Taxes on Distributions | Fidelity International Discovery Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 4.16%
Past 5 years rr_AverageAnnualReturnYear05 1.79%
Life of class rr_AverageAnnualReturnSinceInception 4.67% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Discovery Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 3.23%
Past 5 years rr_AverageAnnualReturnYear05 1.87%
Life of class rr_AverageAnnualReturnSinceInception 4.43% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Discovery Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Past 5 years rr_AverageAnnualReturnYear05 2.63%
Life of class rr_AverageAnnualReturnSinceInception 4.85% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
A T B C | Fidelity International Growth Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Growth Fund/Fidelity Advisor® International Growth Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses.
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Normally investing in companies Fidelity Management & Research Company (FMR) believes have above-average growth potential (stocks of these companies are often called "growth" stocks).
  • Allocating investments across countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return20.49% June 30, 2009
Lowest Quarter Return-21.81%September 30, 2008
Year-to-Date Return-15.47% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity International Growth Fund | Fidelity International Growth Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.72%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 1.78% [20]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.33% [21]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.45%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 714
3 years rr_ExpenseExampleYear03 1,067
5 years rr_ExpenseExampleYear05 1,449
10 years rr_ExpenseExampleYear10 2,519
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 714
3 years rr_ExpenseExampleNoRedemptionYear03 1,067
5 years rr_ExpenseExampleNoRedemptionYear05 1,449
10 years rr_ExpenseExampleNoRedemptionYear10 2,519
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (41.45%)
2009 rr_AnnualReturn2009 36.12%
2010 rr_AnnualReturn2010 16.77%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.49%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.81%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.47%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity International Growth Fund | Fidelity International Growth Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.73%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 2.04% [20]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.34% [21]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.70%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 517
3 years rr_ExpenseExampleYear03 936
5 years rr_ExpenseExampleYear05 1,380
10 years rr_ExpenseExampleYear10 2,611
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 517
3 years rr_ExpenseExampleNoRedemptionYear03 936
5 years rr_ExpenseExampleNoRedemptionYear05 1,380
10 years rr_ExpenseExampleNoRedemptionYear10 2,611
A T B C | Fidelity International Growth Fund | Fidelity International Growth Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.75%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 2.56% [20]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.36% [21]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 2.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 723
3 years rr_ExpenseExampleYear03 1,063
5 years rr_ExpenseExampleYear05 1,529
10 years rr_ExpenseExampleYear10 2,589
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 223
3 years rr_ExpenseExampleNoRedemptionYear03 763
5 years rr_ExpenseExampleNoRedemptionYear05 1,329
10 years rr_ExpenseExampleNoRedemptionYear10 2,589
A T B C | Fidelity International Growth Fund | Fidelity International Growth Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.72%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 2.53% [20]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.33% [21]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 2.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 323
3 years rr_ExpenseExampleYear03 756
5 years rr_ExpenseExampleYear05 1,316
10 years rr_ExpenseExampleYear10 2,842
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 223
3 years rr_ExpenseExampleNoRedemptionYear03 756
5 years rr_ExpenseExampleNoRedemptionYear05 1,316
10 years rr_ExpenseExampleNoRedemptionYear10 2,842
A T B C | Fidelity International Growth Fund | Return Before Taxes | Fidelity International Growth Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.06%
Life of class rr_AverageAnnualReturnSinceInception (5.41%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | Return Before Taxes | Fidelity International Growth Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 12.34%
Life of class rr_AverageAnnualReturnSinceInception (4.94%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | Return Before Taxes | Fidelity International Growth Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.88%
Life of class rr_AverageAnnualReturnSinceInception (5.25%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | Return Before Taxes | Fidelity International Growth Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.82%
Life of class rr_AverageAnnualReturnSinceInception (4.35%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | Return After Taxes on Distributions | Fidelity International Growth Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 10.03%
Life of class rr_AverageAnnualReturnSinceInception (5.39%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Growth Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 6.78%
Life of class rr_AverageAnnualReturnSinceInception (4.45%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Growth Fund | MSCI® EAFE® (Europe, Australasia, Far East) Growth Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Growth Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 12.35%
Life of class rr_AverageAnnualReturnSinceInception (6.61%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total International Equity Fund/Fidelity Advisor® Total International Equity Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in equity securities.
  • Normally investing primarily in common stocks.
  • Using the MSCI® ACWI® (All Country World Index) ex USA Index as a guide in allocating investments across foreign developed and emerging markets, including investments in "growth" stocks, "value" stocks, and securities of companies with small market capitalizations.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return26.51% June 30, 2009
Lowest Quarter Return-23.55%September 30, 2008
Year-to-Date Return-18.83% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity Total International Equity Fund | Fidelity Total International Equity Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.79%
Total annual operating expenses rr_ExpensesOverAssets 1.73% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.28% [22]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.45%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 714
3 years rr_ExpenseExampleYear03 1,063
5 years rr_ExpenseExampleYear05 1,435
10 years rr_ExpenseExampleYear10 2,477
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 714
3 years rr_ExpenseExampleNoRedemptionYear03 1,063
5 years rr_ExpenseExampleNoRedemptionYear05 1,435
10 years rr_ExpenseExampleNoRedemptionYear10 2,477
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (47.29%)
2009 rr_AnnualReturn2009 40.72%
2010 rr_AnnualReturn2010 12.27%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.51%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.55%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.83%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Total International Equity Fund | Fidelity Total International Equity Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.83%
Total annual operating expenses rr_ExpensesOverAssets 2.02% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.32% [22]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.70%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 517
3 years rr_ExpenseExampleYear03 932
5 years rr_ExpenseExampleYear05 1,371
10 years rr_ExpenseExampleYear10 2,591
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 517
3 years rr_ExpenseExampleNoRedemptionYear03 932
5 years rr_ExpenseExampleNoRedemptionYear05 1,371
10 years rr_ExpenseExampleNoRedemptionYear10 2,591
A T B C | Fidelity Total International Equity Fund | Fidelity Total International Equity Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.82%
Total annual operating expenses rr_ExpensesOverAssets 2.51% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.31% [22]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 2.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 723
3 years rr_ExpenseExampleYear03 1,052
5 years rr_ExpenseExampleYear05 1,508
10 years rr_ExpenseExampleYear10 2,541
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 223
3 years rr_ExpenseExampleNoRedemptionYear03 752
5 years rr_ExpenseExampleNoRedemptionYear05 1,308
10 years rr_ExpenseExampleNoRedemptionYear10 2,541
A T B C | Fidelity Total International Equity Fund | Fidelity Total International Equity Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.82%
Total annual operating expenses rr_ExpensesOverAssets 2.51% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.31% [22]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 2.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 323
3 years rr_ExpenseExampleYear03 752
5 years rr_ExpenseExampleYear05 1,308
10 years rr_ExpenseExampleYear10 2,823
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 223
3 years rr_ExpenseExampleNoRedemptionYear03 752
5 years rr_ExpenseExampleNoRedemptionYear05 1,308
10 years rr_ExpenseExampleNoRedemptionYear10 2,823
A T B C | Fidelity Total International Equity Fund | Return Before Taxes | Fidelity Total International Equity Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 5.82%
Life of class rr_AverageAnnualReturnSinceInception (9.00%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | Return Before Taxes | Fidelity Total International Equity Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 7.95%
Life of class rr_AverageAnnualReturnSinceInception (8.57%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | Return Before Taxes | Fidelity Total International Equity Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 6.42%
Life of class rr_AverageAnnualReturnSinceInception (8.85%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | Return Before Taxes | Fidelity Total International Equity Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.38%
Life of class rr_AverageAnnualReturnSinceInception (8.00%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | Return After Taxes on Distributions | Fidelity Total International Equity Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 5.72%
Life of class rr_AverageAnnualReturnSinceInception (9.02%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Total International Equity Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 4.22%
Life of class rr_AverageAnnualReturnSinceInception (7.39%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity Total International Equity Fund | MSCI® ACWI® ex USA Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® ex USA Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 11.29%
Life of class rr_AverageAnnualReturnSinceInception (6.17%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
A T B C | Fidelity International Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Value Fund/Fidelity Advisor® International Value Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 83% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 83.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in securities of companies that Fidelity Management & Research Company (FMR) believes are undervalued in the marketplace in relation to factors such as assets, sales, earnings, growth potential, or cash flow, or in relation to securities of other companies in the same industry (stocks of these companies are often called "value" stocks).
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return29.55% June 30, 2009
Lowest Quarter Return-22.97%December 31, 2008
Year-to-Date Return-20.00% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity International Value Fund | Fidelity International Value Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.47%
Total annual operating expenses rr_ExpensesOverAssets 1.36%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 706
3 years rr_ExpenseExampleYear03 981
5 years rr_ExpenseExampleYear05 1,277
10 years rr_ExpenseExampleYear10 2,116
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 706
3 years rr_ExpenseExampleNoRedemptionYear03 981
5 years rr_ExpenseExampleNoRedemptionYear05 1,277
10 years rr_ExpenseExampleNoRedemptionYear10 2,116
Annual Total Returns rr_BarChartTableAbstract  
2007 rr_AnnualReturn2007 9.07%
2008 rr_AnnualReturn2008 (46.92%)
2009 rr_AnnualReturn2009 35.77%
2010 rr_AnnualReturn2010 4.88%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.55%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.97%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.00%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity International Value Fund | Fidelity International Value Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.49%
Total annual operating expenses rr_ExpensesOverAssets 1.63%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 510
3 years rr_ExpenseExampleYear03 846
5 years rr_ExpenseExampleYear05 1,205
10 years rr_ExpenseExampleYear10 2,215
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 510
3 years rr_ExpenseExampleNoRedemptionYear03 846
5 years rr_ExpenseExampleNoRedemptionYear05 1,205
10 years rr_ExpenseExampleNoRedemptionYear10 2,215
A T B C | Fidelity International Value Fund | Fidelity International Value Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.47%
Total annual operating expenses rr_ExpensesOverAssets 2.11%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 714
3 years rr_ExpenseExampleYear03 961
5 years rr_ExpenseExampleYear05 1,334
10 years rr_ExpenseExampleYear10 2,160
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 214
3 years rr_ExpenseExampleNoRedemptionYear03 661
5 years rr_ExpenseExampleNoRedemptionYear05 1,134
10 years rr_ExpenseExampleNoRedemptionYear10 2,160
A T B C | Fidelity International Value Fund | Fidelity International Value Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.48%
Total annual operating expenses rr_ExpensesOverAssets 2.12%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 315
3 years rr_ExpenseExampleYear03 664
5 years rr_ExpenseExampleYear05 1,139
10 years rr_ExpenseExampleYear10 2,452
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 215
3 years rr_ExpenseExampleNoRedemptionYear03 664
5 years rr_ExpenseExampleNoRedemptionYear05 1,139
10 years rr_ExpenseExampleNoRedemptionYear10 2,452
A T B C | Fidelity International Value Fund | Return Before Taxes | Fidelity International Value Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (1.15%)
Life of class rr_AverageAnnualReturnSinceInception (2.95%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | Return Before Taxes | Fidelity International Value Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 0.98%
Life of class rr_AverageAnnualReturnSinceInception (2.71%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | Return Before Taxes | Fidelity International Value Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (0.78%)
Life of class rr_AverageAnnualReturnSinceInception (2.80%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | Return Before Taxes | Fidelity International Value Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 3.14%
Life of class rr_AverageAnnualReturnSinceInception (2.43%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | Return After Taxes on Distributions | Fidelity International Value Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 (1.60%)
Life of class rr_AverageAnnualReturnSinceInception (3.29%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Value Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 (0.26%)
Life of class rr_AverageAnnualReturnSinceInception (2.40%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity International Value Fund | MSCI® EAFE® (Europe, Australasia, Far East) Value Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Value Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 3.40%
Life of class rr_AverageAnnualReturnSinceInception (0.80%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
A T B C | Fidelity Canada Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Canada Fund/Fidelity Advisor® Canada Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital over the long term.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 104% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 104.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Canadian issuers and other investments that are tied economically to Canada.
  • Potentially investing in securities of U.S. issuers.
  • Normally investing primarily in common stocks.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Canada. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Canada, the fund's performance is expected to be closely tied to social, political, and economic conditions within Canada and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return24.89%June 30, 2009
Lowest Quarter Return-30.51%December 31, 2008
Year-to-Date Return-17.19%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
A T B C | Fidelity Canada Fund | Fidelity Canada Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.30%
Total annual operating expenses rr_ExpensesOverAssets 1.12%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 683
3 years rr_ExpenseExampleYear03 911
5 years rr_ExpenseExampleYear05 1,156
10 years rr_ExpenseExampleYear10 1,860
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 683
3 years rr_ExpenseExampleNoRedemptionYear03 911
5 years rr_ExpenseExampleNoRedemptionYear05 1,156
10 years rr_ExpenseExampleNoRedemptionYear10 1,860
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (42.81%)
2009 rr_AnnualReturn2009 39.28%
2010 rr_AnnualReturn2010 21.48%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.89%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.51%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (17.19%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Canada Fund | Fidelity Canada Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.35%
Total annual operating expenses rr_ExpensesOverAssets 1.42%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 489
3 years rr_ExpenseExampleYear03 784
5 years rr_ExpenseExampleYear05 1,099
10 years rr_ExpenseExampleYear10 1,992
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 489
3 years rr_ExpenseExampleNoRedemptionYear03 784
5 years rr_ExpenseExampleNoRedemptionYear05 1,099
10 years rr_ExpenseExampleNoRedemptionYear10 1,992
A T B C | Fidelity Canada Fund | Fidelity Canada Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.34%
Total annual operating expenses rr_ExpensesOverAssets 1.91%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 694
3 years rr_ExpenseExampleYear03 900
5 years rr_ExpenseExampleYear05 1,232
10 years rr_ExpenseExampleYear10 1,931
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 194
3 years rr_ExpenseExampleNoRedemptionYear03 600
5 years rr_ExpenseExampleNoRedemptionYear05 1,032
10 years rr_ExpenseExampleNoRedemptionYear10 1,931
A T B C | Fidelity Canada Fund | Fidelity Canada Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.29%
Total annual operating expenses rr_ExpensesOverAssets 1.86%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 289
3 years rr_ExpenseExampleYear03 585
5 years rr_ExpenseExampleYear05 1,006
10 years rr_ExpenseExampleYear10 2,180
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 189
3 years rr_ExpenseExampleNoRedemptionYear03 585
5 years rr_ExpenseExampleNoRedemptionYear05 1,006
10 years rr_ExpenseExampleNoRedemptionYear10 2,180
A T B C | Fidelity Canada Fund | Return Before Taxes | Fidelity Canada Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.50%
Life of class rr_AverageAnnualReturnSinceInception 2.58% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | Return Before Taxes | Fidelity Canada Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.90%
Life of class rr_AverageAnnualReturnSinceInception 2.97% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | Return Before Taxes | Fidelity Canada Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 15.55%
Life of class rr_AverageAnnualReturnSinceInception 2.69% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | Return Before Taxes | Fidelity Canada Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 19.57%
Life of class rr_AverageAnnualReturnSinceInception 3.46% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | Return After Taxes on Distributions | Fidelity Canada Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 14.22%
Life of class rr_AverageAnnualReturnSinceInception 2.28% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Canada Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 9.69%
Life of class rr_AverageAnnualReturnSinceInception 2.24% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity Canada Fund | S&P®/TSX Composite Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel S&P® /TSX Composite Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 24.08%
Life of class rr_AverageAnnualReturnSinceInception 5.79% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
A T B C | Fidelity China Region Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® China Region Fund/Fidelity Advisor® China Region Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 87% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 87.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Hong Kong, Taiwanese, and Chinese issuers and other investments that are tied economically to the China region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different China region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in the China Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the China region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the China region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return35.35%June 30, 2009
Lowest Quarter Return-7.18%June 30, 2010
Year-to-Date Return-24.45%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
A T B C | Fidelity China Region Fund | Fidelity China Region Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.41%
Total annual operating expenses rr_ExpensesOverAssets 1.37%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 706
3 years rr_ExpenseExampleYear03 984
5 years rr_ExpenseExampleYear05 1,282
10 years rr_ExpenseExampleYear10 2,127
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 706
3 years rr_ExpenseExampleNoRedemptionYear03 984
5 years rr_ExpenseExampleNoRedemptionYear05 1,282
10 years rr_ExpenseExampleNoRedemptionYear10 2,127
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 65.11%
2010 rr_AnnualReturn2010 17.63%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.35%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.18%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.45%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity China Region Fund | Fidelity China Region Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.42%
Total annual operating expenses rr_ExpensesOverAssets 1.63%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 510
3 years rr_ExpenseExampleYear03 846
5 years rr_ExpenseExampleYear05 1,205
10 years rr_ExpenseExampleYear10 2,215
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 510
3 years rr_ExpenseExampleNoRedemptionYear03 846
5 years rr_ExpenseExampleNoRedemptionYear05 1,205
10 years rr_ExpenseExampleNoRedemptionYear10 2,215
A T B C | Fidelity China Region Fund | Fidelity China Region Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.41%
Total annual operating expenses rr_ExpensesOverAssets 2.12%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 715
3 years rr_ExpenseExampleYear03 964
5 years rr_ExpenseExampleYear05 1,339
10 years rr_ExpenseExampleYear10 2,171
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 215
3 years rr_ExpenseExampleNoRedemptionYear03 664
5 years rr_ExpenseExampleNoRedemptionYear05 1,139
10 years rr_ExpenseExampleNoRedemptionYear10 2,171
A T B C | Fidelity China Region Fund | Fidelity China Region Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.41%
Total annual operating expenses rr_ExpensesOverAssets 2.12%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 315
3 years rr_ExpenseExampleYear03 664
5 years rr_ExpenseExampleYear05 1,139
10 years rr_ExpenseExampleYear10 2,452
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 215
3 years rr_ExpenseExampleNoRedemptionYear03 664
5 years rr_ExpenseExampleNoRedemptionYear05 1,139
10 years rr_ExpenseExampleNoRedemptionYear10 2,452
A T B C | Fidelity China Region Fund | Return Before Taxes | Fidelity China Region Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 10.86%
Life of class rr_AverageAnnualReturnSinceInception 2.70% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | Return Before Taxes | Fidelity China Region Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 13.21%
Life of class rr_AverageAnnualReturnSinceInception 3.33% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | Return Before Taxes | Fidelity China Region Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 11.71%
Life of class rr_AverageAnnualReturnSinceInception 3.14% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | Return Before Taxes | Fidelity China Region Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 15.73%
Life of class rr_AverageAnnualReturnSinceInception 4.22% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | Return After Taxes on Distributions | Fidelity China Region Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 10.75%
Life of class rr_AverageAnnualReturnSinceInception 2.62% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity China Region Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 7.35%
Life of class rr_AverageAnnualReturnSinceInception 2.36% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity China Region Fund | MSCI® Golden Dragon Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Golden Dragon Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 13.60%
Life of class rr_AverageAnnualReturnSinceInception 1.66% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
A T B C | Fidelity Japan Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Japan Fund/Fidelity Advisor® Japan Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual 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_OtherExpensesNewFundBasedOnEstimates Based on estimated amounts for the current fiscal year.
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 134% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 134.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
  • Normally investing primarily in common stocks.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Japan. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Japan, the fund's performance is expected to be closely tied to social, political, and economic conditions within Japan and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns

Calendar Years

[25]
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Fidelity Japan Fund:
Returns
Quarter ended
Highest Quarter Return26.58% June 30, 2009
Lowest Quarter Return-26.00%September 30, 2001
Year-to-Date Return-14.13% September 30, 2011
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus The returns shown above are for Fidelity Japan Fund, a class of shares of the fund that is not offered through this prospectus. Class A, Class T, Class B, and Class C would have substantially similar annual returns to Fidelity Japan Fund because the classes are invested in the same portfolio of securities. Class A's, Class T's, Class B's, and Class C's returns will be lower than Fidelity Japan Fund's returns to the extent that Class A, Class T, Class B, and Class C have higher expenses.
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity Japan Fund | Fidelity Japan Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.41% [26]
Total annual operating expenses rr_ExpensesOverAssets 1.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 690
3 years rr_ExpenseExampleYear03 934
5 years rr_ExpenseExampleYear05 1,197
10 years rr_ExpenseExampleYear10 1,946
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 690
3 years rr_ExpenseExampleNoRedemptionYear03 934
5 years rr_ExpenseExampleNoRedemptionYear05 1,197
10 years rr_ExpenseExampleNoRedemptionYear10 1,946
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Japan Fund | Class: Fidelity Japan Fund
  
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (33.82%)
2002 rr_AnnualReturn2002 (7.36%)
2003 rr_AnnualReturn2003 37.02%
2004 rr_AnnualReturn2004 10.92%
2005 rr_AnnualReturn2005 42.68%
2006 rr_AnnualReturn2006 (5.02%)
2007 rr_AnnualReturn2007 (2.68%)
2008 rr_AnnualReturn2008 (36.81%)
2009 rr_AnnualReturn2009 15.33%
2010 rr_AnnualReturn2010 14.70%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.58%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.00%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2001
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.13%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Japan Fund | Fidelity Japan Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.44% [26]
Total annual operating expenses rr_ExpensesOverAssets 1.48%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 495
3 years rr_ExpenseExampleYear03 802
5 years rr_ExpenseExampleYear05 1,130
10 years rr_ExpenseExampleYear10 2,057
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 495
3 years rr_ExpenseExampleNoRedemptionYear03 802
5 years rr_ExpenseExampleNoRedemptionYear05 1,130
10 years rr_ExpenseExampleNoRedemptionYear10 2,057
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Japan Fund | Fidelity Japan Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.41% [26]
Total annual operating expenses rr_ExpensesOverAssets 1.95%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 698
3 years rr_ExpenseExampleYear03 912
5 years rr_ExpenseExampleYear05 1,252
10 years rr_ExpenseExampleYear10 1,989
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 198
3 years rr_ExpenseExampleNoRedemptionYear03 612
5 years rr_ExpenseExampleNoRedemptionYear05 1,052
10 years rr_ExpenseExampleNoRedemptionYear10 1,989
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Japan Fund | Fidelity Japan Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.38% [26]
Total annual operating expenses rr_ExpensesOverAssets 1.92%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 295
3 years rr_ExpenseExampleYear03 603
5 years rr_ExpenseExampleYear05 1,037
10 years rr_ExpenseExampleYear10 2,243
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 195
3 years rr_ExpenseExampleNoRedemptionYear03 603
5 years rr_ExpenseExampleNoRedemptionYear05 1,037
10 years rr_ExpenseExampleNoRedemptionYear10 2,243
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Japan Fund | Return Before Taxes | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.70% [25]
Past 5 years rr_AverageAnnualReturnYear05 (5.03%) [25]
Past 10 years rr_AverageAnnualReturnYear10 0.27% [25]
A T B C | Fidelity Japan Fund | Return After Taxes on Distributions | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 14.20% [25]
Past 5 years rr_AverageAnnualReturnYear05 (5.57%) [25]
Past 10 years rr_AverageAnnualReturnYear10 (0.02%) [25]
A T B C | Fidelity Japan Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.46% [25]
Past 5 years rr_AverageAnnualReturnYear05 (4.05%) [25]
Past 10 years rr_AverageAnnualReturnYear10 0.32% [25]
A T B C | Fidelity Japan Fund | Tokyo Stock Price Index (TOPIX) (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Tokyo Stock Price Index (TOPIX)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.89%
Past 5 years rr_AverageAnnualReturnYear05 (2.97%)
Past 10 years rr_AverageAnnualReturnYear10 1.20%
A T B C | Fidelity Latin America Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Latin America Fund/Fidelity Advisor® Latin America Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 11% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 11.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Latin American issuers and other investments that are tied economically to Latin America.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Latin American countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Latin America. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Latin America, the fund's performance is expected to be closely tied to social, political, and economic conditions within Latin America and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns

Calendar Years

[27]
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Fidelity Latin America Fund:
Returns
Quarter ended
Highest Quarter Return36.89% June 30, 2009
Lowest Quarter Return-35.24%December 31, 2008
Year-to-Date Return-23.21% September 30, 2011
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus The returns shown above are for Fidelity Latin America Fund, a class of shares of the fund that is not offered through this prospectus. Class A, Class T, Class B, and Class C would have substantially similar annual returns to Fidelity Latin America Fund because the classes are invested in the same portfolio of securities. Class A's, Class T's, Class B's, and Class C's returns will be lower than Fidelity Latin America Fund's returns to the extent that Class A, Class T, Class B, and Class C have higher expenses.
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
A T B C | Fidelity Latin America Fund | Fidelity Latin America Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.38%
Total annual operating expenses rr_ExpensesOverAssets 1.34%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 704
3 years rr_ExpenseExampleYear03 975
5 years rr_ExpenseExampleYear05 1,267
10 years rr_ExpenseExampleYear10 2,095
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 704
3 years rr_ExpenseExampleNoRedemptionYear03 975
5 years rr_ExpenseExampleNoRedemptionYear05 1,267
10 years rr_ExpenseExampleNoRedemptionYear10 2,095
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Latin America Fund | Class: Fidelity Latin America Fund
  
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (6.04%)
2002 rr_AnnualReturn2002 (20.85%)
2003 rr_AnnualReturn2003 65.78%
2004 rr_AnnualReturn2004 41.11%
2005 rr_AnnualReturn2005 55.17%
2006 rr_AnnualReturn2006 44.33%
2007 rr_AnnualReturn2007 43.71%
2008 rr_AnnualReturn2008 (54.64%)
2009 rr_AnnualReturn2009 91.60%
2010 rr_AnnualReturn2010 16.49%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 36.89%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.24%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (23.21%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Latin America Fund | Fidelity Latin America Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.40%
Total annual operating expenses rr_ExpensesOverAssets 1.61%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 508
3 years rr_ExpenseExampleYear03 840
5 years rr_ExpenseExampleYear05 1,195
10 years rr_ExpenseExampleYear10 2,194
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 508
3 years rr_ExpenseExampleNoRedemptionYear03 840
5 years rr_ExpenseExampleNoRedemptionYear05 1,195
10 years rr_ExpenseExampleNoRedemptionYear10 2,194
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Latin America Fund | Fidelity Latin America Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.39%
Total annual operating expenses rr_ExpensesOverAssets 2.10%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 713
3 years rr_ExpenseExampleYear03 958
5 years rr_ExpenseExampleYear05 1,329
10 years rr_ExpenseExampleYear10 2,146
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 213
3 years rr_ExpenseExampleNoRedemptionYear03 658
5 years rr_ExpenseExampleNoRedemptionYear05 1,129
10 years rr_ExpenseExampleNoRedemptionYear10 2,146
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Latin America Fund | Fidelity Latin America Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.37%
Total annual operating expenses rr_ExpensesOverAssets 2.08%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 311
3 years rr_ExpenseExampleYear03 652
5 years rr_ExpenseExampleYear05 1,119
10 years rr_ExpenseExampleYear10 2,410
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 211
3 years rr_ExpenseExampleNoRedemptionYear03 652
5 years rr_ExpenseExampleNoRedemptionYear05 1,119
10 years rr_ExpenseExampleNoRedemptionYear10 2,410
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Class A, Class T, Class B, and Class C after Class A, Class T, Class B, and Class C have been in operation for one calendar year.
A T B C | Fidelity Latin America Fund | Return Before Taxes | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.49% [27]
Past 5 years rr_AverageAnnualReturnYear05 16.00% [27]
Past 10 years rr_AverageAnnualReturnYear10 18.95% [27]
A T B C | Fidelity Latin America Fund | Return After Taxes on Distributions | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.22% [27]
Past 5 years rr_AverageAnnualReturnYear05 15.72% [27]
Past 10 years rr_AverageAnnualReturnYear10 18.59% [27]
A T B C | Fidelity Latin America Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.33% [27]
Past 5 years rr_AverageAnnualReturnYear05 14.20% [27]
Past 10 years rr_AverageAnnualReturnYear10 17.28% [27]
A T B C | Fidelity Latin America Fund | MSCI® EM (Emerging Markets) Latin America Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Latin America Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 14.89%
Past 5 years rr_AverageAnnualReturnYear05 19.83%
Past 10 years rr_AverageAnnualReturnYear10 21.41%
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Europe, Middle East, Africa (EMEA) Fund/Fidelity Advisor® Emerging Europe, Middle East, Africa (EMEA) Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 53% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 53.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of emerging Europe, Middle East and Africa (EMEA) issuers and other investments that are tied economically to the EMEA region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different EMEA region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
Risk [Heading] rr_RiskHeading Principal 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.
  • Geographic Concentration in the EMEA Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the EMEA region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the EMEA region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return34.22%June 30, 2009
Lowest Quarter Return-11.06%June 30, 2010
Year-to-Date Return-20.15%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.54%
Total annual operating expenses rr_ExpensesOverAssets 1.60%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 728
3 years rr_ExpenseExampleYear03 1,051
5 years rr_ExpenseExampleYear05 1,396
10 years rr_ExpenseExampleYear10 2,366
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 728
3 years rr_ExpenseExampleNoRedemptionYear03 1,051
5 years rr_ExpenseExampleNoRedemptionYear05 1,396
10 years rr_ExpenseExampleNoRedemptionYear10 2,366
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 60.97%
2010 rr_AnnualReturn2010 25.21%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 34.22%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.06%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.15%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.56%
Total annual operating expenses rr_ExpensesOverAssets 1.87%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 533
3 years rr_ExpenseExampleYear03 917
5 years rr_ExpenseExampleYear05 1,326
10 years rr_ExpenseExampleYear10 2,464
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 533
3 years rr_ExpenseExampleNoRedemptionYear03 917
5 years rr_ExpenseExampleNoRedemptionYear05 1,326
10 years rr_ExpenseExampleNoRedemptionYear10 2,464
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.56%
Total annual operating expenses rr_ExpensesOverAssets 2.37%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 740
3 years rr_ExpenseExampleYear03 1,039
5 years rr_ExpenseExampleYear05 1,465
10 years rr_ExpenseExampleYear10 2,425
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 240
3 years rr_ExpenseExampleNoRedemptionYear03 739
5 years rr_ExpenseExampleNoRedemptionYear05 1,265
10 years rr_ExpenseExampleNoRedemptionYear10 2,425
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.55%
Total annual operating expenses rr_ExpensesOverAssets 2.36%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 339
3 years rr_ExpenseExampleYear03 736
5 years rr_ExpenseExampleYear05 1,260
10 years rr_ExpenseExampleYear10 2,696
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 239
3 years rr_ExpenseExampleNoRedemptionYear03 736
5 years rr_ExpenseExampleNoRedemptionYear05 1,260
10 years rr_ExpenseExampleNoRedemptionYear10 2,696
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.01%
Life of class rr_AverageAnnualReturnSinceInception (3.43%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 20.53%
Life of class rr_AverageAnnualReturnSinceInception (2.82%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 19.18%
Life of class rr_AverageAnnualReturnSinceInception (3.12%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 23.25%
Life of class rr_AverageAnnualReturnSinceInception (1.99%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 17.95%
Life of class rr_AverageAnnualReturnSinceInception (3.48%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 12.06%
Life of class rr_AverageAnnualReturnSinceInception (2.84%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 23.80%
Life of class rr_AverageAnnualReturnSinceInception (2.33%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
A T B C | Fidelity International Small Cap Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Fund/Fidelity Advisor® International Small Cap Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 47% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return35.15% June 30, 2009
Lowest Quarter Return-25.83%September 30, 2008
Year-to-Date Return-15.07% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity International Small Cap Fund | Fidelity International Small Cap Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.41%
Total annual operating expenses rr_ExpensesOverAssets 1.56%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 725
3 years rr_ExpenseExampleYear03 1,039
5 years rr_ExpenseExampleYear05 1,376
10 years rr_ExpenseExampleYear10 2,325
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 725
3 years rr_ExpenseExampleNoRedemptionYear03 1,039
5 years rr_ExpenseExampleNoRedemptionYear05 1,376
10 years rr_ExpenseExampleNoRedemptionYear10 2,325
Annual Total Returns rr_BarChartTableAbstract  
2004 rr_AnnualReturn2004 28.99%
2005 rr_AnnualReturn2005 28.95%
2006 rr_AnnualReturn2006 13.84%
2007 rr_AnnualReturn2007 12.85%
2008 rr_AnnualReturn2008 (46.62%)
2009 rr_AnnualReturn2009 45.25%
2010 rr_AnnualReturn2010 25.17%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.15%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.83%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.07%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity International Small Cap Fund | Fidelity International Small Cap Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.42%
Total annual operating expenses rr_ExpensesOverAssets 1.82%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 528
3 years rr_ExpenseExampleYear03 902
5 years rr_ExpenseExampleYear05 1,301
10 years rr_ExpenseExampleYear10 2,412
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 528
3 years rr_ExpenseExampleNoRedemptionYear03 902
5 years rr_ExpenseExampleNoRedemptionYear05 1,301
10 years rr_ExpenseExampleNoRedemptionYear10 2,412
A T B C | Fidelity International Small Cap Fund | Fidelity International Small Cap Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.42%
Total annual operating expenses rr_ExpensesOverAssets 2.32%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 735
3 years rr_ExpenseExampleYear03 1,024
5 years rr_ExpenseExampleYear05 1,440
10 years rr_ExpenseExampleYear10 2,377
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 235
3 years rr_ExpenseExampleNoRedemptionYear03 724
5 years rr_ExpenseExampleNoRedemptionYear05 1,240
10 years rr_ExpenseExampleNoRedemptionYear10 2,377
A T B C | Fidelity International Small Cap Fund | Fidelity International Small Cap Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.37%
Total annual operating expenses rr_ExpensesOverAssets 2.27%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 330
3 years rr_ExpenseExampleYear03 709
5 years rr_ExpenseExampleYear05 1,215
10 years rr_ExpenseExampleYear10 2,605
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 230
3 years rr_ExpenseExampleNoRedemptionYear03 709
5 years rr_ExpenseExampleNoRedemptionYear05 1,215
10 years rr_ExpenseExampleNoRedemptionYear10 2,605
A T B C | Fidelity International Small Cap Fund | Return Before Taxes | Fidelity International Small Cap Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 17.97%
Past 5 years rr_AverageAnnualReturnYear05 3.28%
Life of class rr_AverageAnnualReturnSinceInception 15.56% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | Return Before Taxes | Fidelity International Small Cap Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 20.50%
Past 5 years rr_AverageAnnualReturnYear05 3.51%
Life of class rr_AverageAnnualReturnSinceInception 15.63% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | Return Before Taxes | Fidelity International Small Cap Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 19.20%
Past 5 years rr_AverageAnnualReturnYear05 3.45%
Life of class rr_AverageAnnualReturnSinceInception 15.61% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | Return Before Taxes | Fidelity International Small Cap Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 23.26%
Past 5 years rr_AverageAnnualReturnYear05 3.73%
Life of class rr_AverageAnnualReturnSinceInception 15.61% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | Return After Taxes on Distributions | Fidelity International Small Cap Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.88%
Past 5 years rr_AverageAnnualReturnYear05 1.67%
Life of class rr_AverageAnnualReturnSinceInception 13.91% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Small Cap Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.89%
Past 5 years rr_AverageAnnualReturnYear05 2.49%
Life of class rr_AverageAnnualReturnSinceInception 13.51% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 13.95% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
A T B C | Fidelity International Small Cap Opportunities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Opportunities Fund/Fidelity Advisor® International Small Cap Opportunities Fund A, T, B, C
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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_ExpenseBreakpointDiscounts 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.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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_ExpenseExampleByYearCaption Sell All Shares
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Hold Shares
Portfolio Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 24.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads

The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Class A:
Returns
Quarter ended
Highest Quarter Return24.35% June 30, 2009
Lowest Quarter Return-34.40%December 31, 2008
Year-to-Date Return-13.77% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
A T B C | Fidelity International Small Cap Opportunities Fund | Fidelity International Small Cap Opportunities Fund - Class A
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 5.75%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.43%
Total annual operating expenses rr_ExpensesOverAssets 1.34%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 704
3 years rr_ExpenseExampleYear03 975
5 years rr_ExpenseExampleYear05 1,267
10 years rr_ExpenseExampleYear10 2,095
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 704
3 years rr_ExpenseExampleNoRedemptionYear03 975
5 years rr_ExpenseExampleNoRedemptionYear05 1,267
10 years rr_ExpenseExampleNoRedemptionYear10 2,095
Annual Total Returns rr_BarChartTableAbstract  
2006 rr_AnnualReturn2006 25.24%
2007 rr_AnnualReturn2007 2.67%
2008 rr_AnnualReturn2008 (58.54%)
2009 rr_AnnualReturn2009 45.81%
2010 rr_AnnualReturn2010 23.01%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.35%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (34.40%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (13.77%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
A T B C | Fidelity International Small Cap Opportunities Fund | Fidelity International Small Cap Opportunities Fund - Class T
  
Shareholder fees rr_ShareholderFeesAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 3.50%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [14]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock 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.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.44%
Total annual operating expenses rr_ExpensesOverAssets 1.60%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 507
3 years rr_ExpenseExampleYear03 837
5 years rr_ExpenseExampleYear05 1,190
10 years rr_ExpenseExampleYear10 2,184
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 507
3 years rr_ExpenseExampleNoRedemptionYear03 837
5 years rr_ExpenseExampleNoRedemptionYear05 1,190
10 years rr_ExpenseExampleNoRedemptionYear10 2,184
A T B C | Fidelity International Small Cap Opportunities Fund | Fidelity International Small Cap Opportunities Fund - Class B
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 5.00% [15]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Declines over 6 years from 5.00% to 0%.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.43%
Total annual operating expenses rr_ExpensesOverAssets 2.09%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 712
3 years rr_ExpenseExampleYear03 955
5 years rr_ExpenseExampleYear05 1,324
10 years rr_ExpenseExampleYear10 2,139
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 212
3 years rr_ExpenseExampleNoRedemptionYear03 655
5 years rr_ExpenseExampleNoRedemptionYear05 1,124
10 years rr_ExpenseExampleNoRedemptionYear10 2,139
A T B C | Fidelity International Small Cap Opportunities Fund | Fidelity International Small Cap Opportunities Fund - Class C
  
Shareholder fees rr_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_MaximumDeferredSalesChargeOverOther 1.00% [16]
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.43%
Total annual operating expenses rr_ExpensesOverAssets 2.09%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 312
3 years rr_ExpenseExampleYear03 655
5 years rr_ExpenseExampleYear05 1,124
10 years rr_ExpenseExampleYear10 2,421
Expense Example, No Redemption rr_ExpenseExampleNoRedemptionAbstract  
1 year rr_ExpenseExampleNoRedemptionYear01 212
3 years rr_ExpenseExampleNoRedemptionYear03 655
5 years rr_ExpenseExampleNoRedemptionYear05 1,124
10 years rr_ExpenseExampleNoRedemptionYear10 2,421
A T B C | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Fidelity International Small Cap Opportunities Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 15.93%
Past 5 years rr_AverageAnnualReturnYear05 (2.06%)
Life of class rr_AverageAnnualReturnSinceInception 2.32% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Fidelity International Small Cap Opportunities Fund - Class T
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class T - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.38%
Past 5 years rr_AverageAnnualReturnYear05 (1.83%)
Life of class rr_AverageAnnualReturnSinceInception 2.49% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Fidelity International Small Cap Opportunities Fund - Class B
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class B - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 17.16%
Past 5 years rr_AverageAnnualReturnYear05 (1.97%)
Life of class rr_AverageAnnualReturnSinceInception 2.49% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Fidelity International Small Cap Opportunities Fund - Class C
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 21.19%
Past 5 years rr_AverageAnnualReturnYear05 (1.62%)
Life of class rr_AverageAnnualReturnSinceInception 2.66% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions | Fidelity International Small Cap Opportunities Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 15.74%
Past 5 years rr_AverageAnnualReturnYear05 (2.48%)
Life of class rr_AverageAnnualReturnSinceInception 1.91% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Small Cap Opportunities Fund - Class A
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.76%
Past 5 years rr_AverageAnnualReturnYear05 (1.62%)
Life of class rr_AverageAnnualReturnSinceInception 2.10% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
A T B C | Fidelity International Small Cap Opportunities Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 5.30% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Inst | Fidelity Worldwide Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Worldwide Fund/Fidelity Advisor® Worldwide Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 203% of the average value of its portfolio
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 203.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return15.83% September 30, 2010
Lowest Quarter Return-12.31%June 30, 2010
Year-to-Date Return-11.81% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity Worldwide Fund | Fidelity Worldwide Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.36%
Total annual operating expenses rr_ExpensesOverAssets 1.13%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 115
3 years rr_ExpenseExampleYear03 359
5 years rr_ExpenseExampleYear05 622
10 years rr_ExpenseExampleYear10 1,375
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 17.02%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 15.83%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.31%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (11.81%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Worldwide Fund | Return Before Taxes | Fidelity Worldwide Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 17.02%
Life of class rr_AverageAnnualReturnSinceInception 34.67% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
Inst | Fidelity Worldwide Fund | Return After Taxes on Distributions | Fidelity Worldwide Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.92%
Life of class rr_AverageAnnualReturnSinceInception 34.57% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
Inst | Fidelity Worldwide Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Worldwide Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.32%
Life of class rr_AverageAnnualReturnSinceInception 30.05% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
Inst | Fidelity Worldwide Fund | MSCI® World Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® World Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 12.16%
Life of class rr_AverageAnnualReturnSinceInception 32.92% [17]
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 19, 2009
Inst | Fidelity Global Commodity Stock Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Global Commodity Stock Fund/Fidelity Advisor® Global Commodity Stock Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination at least one year from the effective date of the prospectus
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 71% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 71.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Investing in securities issued anywhere in the world.
  • Normally investing primarily in common stocks.
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
  • Allocating investments across different countries and regions.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in stocks of companies principally engaged in the energy, metals, and agriculture group of industries.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Commodities Industry Concentration. The energy, metals, and agriculture industries can be significantly affected by commodity prices and consumption, world events, import and export controls, worldwide competition, government regulations, and economic conditions.
  • 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. The value of securities of smaller issuers 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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return20.28% September 30, 2010
Lowest Quarter Return-17.86%June 30, 2010
Year-to-Date Return-23.99%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity Global Commodity Stock Fund | Fidelity Global Commodity Stock Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71% [4]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.32%
Total annual operating expenses rr_ExpensesOverAssets 1.03%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 105
3 years rr_ExpenseExampleYear03 328
5 years rr_ExpenseExampleYear05 569
10 years rr_ExpenseExampleYear10 1,259
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 18.02%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.28%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.86%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (23.99%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Global Commodity Stock Fund | Return Before Taxes | Fidelity Global Commodity Stock Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 18.02%
Life of class rr_AverageAnnualReturnSinceInception 37.05% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Inst | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions | Fidelity Global Commodity Stock Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 17.84%
Life of class rr_AverageAnnualReturnSinceInception 36.83% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Inst | Fidelity Global Commodity Stock Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Global Commodity Stock Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 12.06%
Life of class rr_AverageAnnualReturnSinceInception 31.99% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Inst | Fidelity Global Commodity Stock Fund | MSCI® ACWI® (All Country World Index) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® (All Country World Index) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 13.03%
Life of class rr_AverageAnnualReturnSinceInception 33.19% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Inst | Fidelity Global Commodity Stock Fund | MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.70%
Life of class rr_AverageAnnualReturnSinceInception 35.99% [5]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 25, 2009
Inst | Fidelity International Discovery Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Discovery Fund/Fidelity Advisor® International Discovery Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return22.29% June 30, 2009
Lowest Quarter Return-21.15%September 30, 2008
Year-to-Date Return-18.10% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25%
Total annual operating expenses rr_ExpensesOverAssets 0.95%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 97
3 years rr_ExpenseExampleYear03 303
5 years rr_ExpenseExampleYear05 525
10 years rr_ExpenseExampleYear10 1,166
Annual Total Returns rr_BarChartTableAbstract  
2006 rr_AnnualReturn2006 24.29%
2007 rr_AnnualReturn2007 19.07%
2008 rr_AnnualReturn2008 (44.26%)
2009 rr_AnnualReturn2009 30.15%
2010 rr_AnnualReturn2010 11.07%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.29%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.15%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.10%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity International Discovery Fund | Return Before Taxes | Fidelity International Discovery Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 11.07%
Past 5 years rr_AverageAnnualReturnYear05 3.58%
Life of class rr_AverageAnnualReturnSinceInception 6.48% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
Inst | Fidelity International Discovery Fund | Return After Taxes on Distributions | Fidelity International Discovery Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 10.78%
Past 5 years rr_AverageAnnualReturnYear05 3.23%
Life of class rr_AverageAnnualReturnSinceInception 6.00% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
Inst | Fidelity International Discovery Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Discovery Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 7.67%
Past 5 years rr_AverageAnnualReturnYear05 3.15%
Life of class rr_AverageAnnualReturnSinceInception 5.63% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
Inst | Fidelity International Discovery Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Past 5 years rr_AverageAnnualReturnYear05 2.63%
Life of class rr_AverageAnnualReturnSinceInception 4.85% [19]
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 06, 2005
Inst | Fidelity International Growth Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Growth Fund/Fidelity Advisor® International Growth Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 68% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 68.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Normally investing in companies Fidelity Management & Research Company (FMR) believes have above-average growth potential (stocks of these companies are often called "growth" stocks).
  • Allocating investments across countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return20.69% June 30, 2009
Lowest Quarter Return-21.67%September 30, 2008
Year-to-Date Return-15.34% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity International Growth Fund | Fidelity International Growth Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.80% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.70%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01%
Total annual operating expenses rr_ExpensesOverAssets 1.51% [20]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.31% [29]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 122
3 years rr_ExpenseExampleYear03 447
5 years rr_ExpenseExampleYear05 795
10 years rr_ExpenseExampleYear10 1,776
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (41.29%)
2009 rr_AnnualReturn2009 36.50%
2010 rr_AnnualReturn2010 16.94%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.69%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.67%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.34%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity International Growth Fund | Return Before Taxes | Fidelity International Growth Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.94%
Life of class rr_AverageAnnualReturnSinceInception (3.40%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity International Growth Fund | Return After Taxes on Distributions | Fidelity International Growth Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.88%
Life of class rr_AverageAnnualReturnSinceInception (3.41%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity International Growth Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Growth Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.31%
Life of class rr_AverageAnnualReturnSinceInception (2.77%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity International Growth Fund | MSCI® EAFE® (Europe, Australasia, Far East) Growth Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Growth Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 12.35%
Life of class rr_AverageAnnualReturnSinceInception (6.61%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity Total International Equity Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Total International Equity Fund/Fidelity Advisor® Total International Equity Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2012
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in equity securities.
  • Normally investing primarily in common stocks.
  • Using the MSCI® ACWI® (All Country World Index) ex USA Index as a guide in allocating investments across foreign developed and emerging markets, including investments in "growth" stocks, "value" stocks, and securities of companies with small market capitalizations.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return26.51% June 30, 2009
Lowest Quarter Return-23.52%September 30, 2008
Year-to-Date Return-18.63% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity Total International Equity Fund | Fidelity Total International Equity Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.69% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.79%
Total annual operating expenses rr_ExpensesOverAssets 1.48% [9]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.28% [30]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.20%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 122
3 years rr_ExpenseExampleYear03 440
5 years rr_ExpenseExampleYear05 781
10 years rr_ExpenseExampleYear10 1,744
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (47.23%)
2009 rr_AnnualReturn2009 41.17%
2010 rr_AnnualReturn2010 12.55%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.51%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.52%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.63%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Total International Equity Fund | Return Before Taxes | Fidelity Total International Equity Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 12.55%
Life of class rr_AverageAnnualReturnSinceInception (7.07%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity Total International Equity Fund | Return After Taxes on Distributions | Fidelity Total International Equity Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 12.42%
Life of class rr_AverageAnnualReturnSinceInception (7.14%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity Total International Equity Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Total International Equity Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 8.67%
Life of class rr_AverageAnnualReturnSinceInception (5.80%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity Total International Equity Fund | MSCI® ACWI® ex USA Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® ACWI® ex USA Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 11.29%
Life of class rr_AverageAnnualReturnSinceInception (6.17%) [8]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2007
Inst | Fidelity International Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Value Fund/Fidelity Advisor® International Value Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 83% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 83.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in securities of companies that Fidelity Management & Research Company (FMR) believes are undervalued in the marketplace in relation to factors such as assets, sales, earnings, growth potential, or cash flow, or in relation to securities of other companies in the same industry (stocks of these companies are often called "value" stocks).
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return29.55% June 30, 2009
Lowest Quarter Return-22.87%December 31, 2008
Year-to-Date Return-19.75% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity International Value Fund | Fidelity International Value Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.64% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.34%
Total annual operating expenses rr_ExpensesOverAssets 0.98%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 100
3 years rr_ExpenseExampleYear03 312
5 years rr_ExpenseExampleYear05 542
10 years rr_ExpenseExampleYear10 1,201
Annual Total Returns rr_BarChartTableAbstract  
2007 rr_AnnualReturn2007 9.56%
2008 rr_AnnualReturn2008 (46.62%)
2009 rr_AnnualReturn2009 36.18%
2010 rr_AnnualReturn2010 5.26%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.55%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.87%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (19.75%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity International Value Fund | Return Before Taxes | Fidelity International Value Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 5.26%
Life of class rr_AverageAnnualReturnSinceInception (1.32%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Inst | Fidelity International Value Fund | Return After Taxes on Distributions | Fidelity International Value Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 4.65%
Life of class rr_AverageAnnualReturnSinceInception (1.77%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Inst | Fidelity International Value Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Value Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 3.94%
Life of class rr_AverageAnnualReturnSinceInception (1.09%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Inst | Fidelity International Value Fund | MSCI® EAFE® (Europe, Australasia, Far East) Value Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Value Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 3.40%
Life of class rr_AverageAnnualReturnSinceInception (0.80%) [10]
Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2006
Inst | Fidelity Canada Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Canada Fund/Fidelity Advisor® Canada Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks growth of capital over the long term.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 104% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 104.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Canadian issuers and other investments that are tied economically to Canada.
  • Potentially investing in securities of U.S. issuers.
  • Normally investing primarily in common stocks.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Canadian market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Canada. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Canada, the fund's performance is expected to be closely tied to social, political, and economic conditions within Canada and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.97%June 30, 2009
Lowest Quarter Return-30.45%December 31, 2008
Year-to-Date Return-17.02%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity Canada Fund | Fidelity Canada Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.57% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25%
Total annual operating expenses rr_ExpensesOverAssets 0.82%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 84
3 years rr_ExpenseExampleYear03 262
5 years rr_ExpenseExampleYear05 455
10 years rr_ExpenseExampleYear10 1,014
Annual Total Returns rr_BarChartTableAbstract  
2008 rr_AnnualReturn2008 (42.66%)
2009 rr_AnnualReturn2009 39.60%
2010 rr_AnnualReturn2010 21.83%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.97%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.45%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (17.02%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Canada Fund | Return Before Taxes | Fidelity Canada Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 21.83%
Life of class rr_AverageAnnualReturnSinceInception 4.52% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
Inst | Fidelity Canada Fund | Return After Taxes on Distributions | Fidelity Canada Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 21.44%
Life of class rr_AverageAnnualReturnSinceInception 4.15% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
Inst | Fidelity Canada Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Canada Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.47%
Life of class rr_AverageAnnualReturnSinceInception 3.87% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
Inst | Fidelity Canada Fund | S&P®/TSX Composite Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel S&P® /TSX Composite Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 24.08%
Life of class rr_AverageAnnualReturnSinceInception 5.79% [23]
Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2007
Inst | Fidelity China Region Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® China Region Fund/Fidelity Advisor® China Region Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 87% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 87.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Hong Kong, Taiwanese, and Chinese issuers and other investments that are tied economically to the China region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different China region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Hong Kong, Taiwanese, and Chinese market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in the China Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the China region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the China region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.49%June 30, 2009
Lowest Quarter Return-7.12%June 30, 2010
Year-to-Date Return-24.26%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity China Region Fund | Fidelity China Region Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.35%
Total annual operating expenses rr_ExpensesOverAssets 1.06%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 108
3 years rr_ExpenseExampleYear03 337
5 years rr_ExpenseExampleYear05 585
10 years rr_ExpenseExampleYear10 1,294
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 65.53%
2010 rr_AnnualReturn2010 17.93%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.49%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.12%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.26%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity China Region Fund | Return Before Taxes | Fidelity China Region Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 17.93%
Life of class rr_AverageAnnualReturnSinceInception 5.31% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
Inst | Fidelity China Region Fund | Return After Taxes on Distributions | Fidelity China Region Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 17.73%
Life of class rr_AverageAnnualReturnSinceInception 5.19% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
Inst | Fidelity China Region Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity China Region Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.95%
Life of class rr_AverageAnnualReturnSinceInception 4.58% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
Inst | Fidelity China Region Fund | MSCI® Golden Dragon Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Golden Dragon Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 13.60%
Life of class rr_AverageAnnualReturnSinceInception 1.66% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
Inst | Fidelity Japan Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Japan Fund/Fidelity Advisor® Japan Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual 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_OtherExpensesNewFundBasedOnEstimates Based on estimated amounts for the current fiscal year.
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 134% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 134.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
  • Normally investing primarily in common stocks.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Normally investing at least 80% of assets in securities of Japanese issuers and other investments that are tied economically to Japan.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. Foreign 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.
  • Geographic Concentration in Japan. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Japan, the fund's performance is expected to be closely tied to social, political, and economic conditions within Japan and to be more volatile than the performance of more geographically diversified funds.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance history will be available for Institutional Class after Institutional Class has been in operation for one calendar year.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

 [31]
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Fidelity Japan Fund:
Returns
Quarter ended
Highest Quarter Return26.58% June 30, 2009
Lowest Quarter Return-26.00%September 30, 2001
Year-to-Date Return-14.13% September 30, 2011
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus The returns shown above are for Fidelity Japan Fund, a class of shares of the fund that is not offered through this prospectus. Institutional Class would have substantially similar annual returns to Fidelity Japan Fund because the classes are invested in the same portfolio of securities. Institutional Class's returns will be lower than Fidelity Japan Fund's returns to the extent that Institutional Class has higher expenses.
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity Japan Fund | Fidelity Japan Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.54% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25% [26]
Total annual operating expenses rr_ExpensesOverAssets 0.79%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 81
3 years rr_ExpenseExampleYear03 252
5 years rr_ExpenseExampleYear05 439
10 years rr_ExpenseExampleYear10 978
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Institutional Class after Institutional Class has been in operation for one calendar year.
Inst | Fidelity Japan Fund | Class: Fidelity Japan Fund
  
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (33.82%)
2002 rr_AnnualReturn2002 (7.36%)
2003 rr_AnnualReturn2003 37.02%
2004 rr_AnnualReturn2004 10.92%
2005 rr_AnnualReturn2005 42.68%
2006 rr_AnnualReturn2006 (5.02%)
2007 rr_AnnualReturn2007 (2.68%)
2008 rr_AnnualReturn2008 (36.81%)
2009 rr_AnnualReturn2009 15.33%
2010 rr_AnnualReturn2010 14.70%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.58%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.00%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2001
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.13%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Japan Fund | Return Before Taxes | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 14.70% [31]
Past 5 years rr_AverageAnnualReturnYear05 (5.03%) [31]
Past 10 years rr_AverageAnnualReturnYear10 0.27% [31]
Inst | Fidelity Japan Fund | Return After Taxes on Distributions | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 14.20% [31]
Past 5 years rr_AverageAnnualReturnYear05 (5.57%) [31]
Past 10 years rr_AverageAnnualReturnYear10 (0.02%) [31]
Inst | Fidelity Japan Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Japan Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Japan Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.46% [31]
Past 5 years rr_AverageAnnualReturnYear05 (4.05%) [31]
Past 10 years rr_AverageAnnualReturnYear10 0.32% [31]
Inst | Fidelity Japan Fund | Tokyo Stock Price Index (TOPIX) (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Tokyo Stock Price Index (TOPIX)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 15.89%
Past 5 years rr_AverageAnnualReturnYear05 (2.97%)
Past 10 years rr_AverageAnnualReturnYear10 1.20%
Inst | Fidelity Latin America Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Latin America Fund/Fidelity Advisor® Latin America Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 11% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 11.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of Latin American issuers and other investments that are tied economically to Latin America.
  • Normally investing primarily in common stocks.
  • Allocating investments across different Latin American countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the Latin American market.
Risk [Heading] rr_RiskHeading Principal 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 Exposure. 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.
  • Geographic Concentration in Latin America. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in Latin America, the fund's performance is expected to be closely tied to social, political, and economic conditions within Latin America and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance history will be available for Institutional Class after Institutional Class has been in operation for one calendar year.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns

Calendar Years

[32]
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart for Fidelity Latin America Fund:
Returns
Quarter ended
Highest Quarter Return36.89% June 30, 2009
Lowest Quarter Return-35.24%December 31, 2008
Year-to-Date Return-23.21% September 30, 2011
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus The returns shown above are for Fidelity Latin America Fund, a class of shares of the fund that is not offered through this prospectus. Institutional Class would have substantially similar annual returns to Fidelity Latin America Fund because the classes are invested in the same portfolio of securities. Institutional Class's returns will be lower than Fidelity Latin America Fund's returns to the extent that Institutional Class has higher expenses.
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Inst | Fidelity Latin America Fund | Fidelity Latin America Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.33%
Total annual operating expenses rr_ExpensesOverAssets 1.04%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 106
3 years rr_ExpenseExampleYear03 331
5 years rr_ExpenseExampleYear05 574
10 years rr_ExpenseExampleYear10 1,271
Performance fit744822_FundPastPerformanceAbstract  
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance history will be available for Institutional Class after Institutional Class has been in operation for one calendar year.
Inst | Fidelity Latin America Fund | Class: Fidelity Latin America Fund
  
Annual Total Returns rr_BarChartTableAbstract  
2001 rr_AnnualReturn2001 (6.04%)
2002 rr_AnnualReturn2002 (20.85%)
2003 rr_AnnualReturn2003 65.78%
2004 rr_AnnualReturn2004 41.11%
2005 rr_AnnualReturn2005 55.17%
2006 rr_AnnualReturn2006 44.33%
2007 rr_AnnualReturn2007 43.71%
2008 rr_AnnualReturn2008 (54.64%)
2009 rr_AnnualReturn2009 91.60%
2010 rr_AnnualReturn2010 16.49%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 36.89%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.24%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (23.21%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Latin America Fund | Return Before Taxes | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.49% [32]
Past 5 years rr_AverageAnnualReturnYear05 16.00% [32]
Past 10 years rr_AverageAnnualReturnYear10 18.95% [32]
Inst | Fidelity Latin America Fund | Return After Taxes on Distributions | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.22% [32]
Past 5 years rr_AverageAnnualReturnYear05 15.72% [32]
Past 10 years rr_AverageAnnualReturnYear10 18.59% [32]
Inst | Fidelity Latin America Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class: Fidelity Latin America Fund
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Latin America Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.33% [32]
Past 5 years rr_AverageAnnualReturnYear05 14.20% [32]
Past 10 years rr_AverageAnnualReturnYear10 17.28% [32]
Inst | Fidelity Latin America Fund | MSCI® EM (Emerging Markets) Latin America Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Latin America Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 14.89%
Past 5 years rr_AverageAnnualReturnYear05 19.83%
Past 10 years rr_AverageAnnualReturnYear10 21.41%
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Europe, Middle East, Africa (EMEA) Fund/Fidelity Advisor® Emerging Europe, Middle East, Africa (EMEA) Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 53% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 53.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in securities of emerging Europe, Middle East and Africa (EMEA) issuers and other investments that are tied economically to the EMEA region.
  • Normally investing primarily in common stocks.
  • Allocating investments across different EMEA region countries.
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Investing up to 35% of total assets in any industry that accounts for more than 20% of the EMEA market.
Risk [Heading] rr_RiskHeading Principal 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.
  • Geographic Concentration in the EMEA Region. Because Fidelity Management & Research Company (FMR) concentrates the fund's investments in the EMEA region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the EMEA region and to be more volatile than the performance of more geographically diversified funds. In addition, because FMR may invest a significant percentage of the fund's assets in certain industries, the fund's performance could be affected to the extent that the particular industry or industries in which the fund invests are sensitive to adverse social, political, economic, currency, or regulatory developments.
  • 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.

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_RiskNondiversifiedStatus 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.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return34.43% June 30, 2009
Lowest Quarter Return-11.04%June 30, 2010
Year-to-Date Return-20.00%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.45%
Total annual operating expenses rr_ExpensesOverAssets 1.26%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 128
3 years rr_ExpenseExampleYear03 400
5 years rr_ExpenseExampleYear05 692
10 years rr_ExpenseExampleYear10 1,523
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 61.46%
2010 rr_AnnualReturn2010 25.47%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 34.43%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.04%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.00%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return Before Taxes | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 25.47%
Life of class rr_AverageAnnualReturnSinceInception (0.99%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 25.38%
Life of class rr_AverageAnnualReturnSinceInception (1.07%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 16.97%
Life of class rr_AverageAnnualReturnSinceInception (0.79%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Inst | Fidelity Emerging Europe, Middle East, Africa (EMEA) Fund | MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EM (Emerging Markets) Europe, Middle East and Africa Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 23.80%
Life of class rr_AverageAnnualReturnSinceInception (2.33%) [11]
Inception Date rr_AverageAnnualReturnInceptionDate May 08, 2008
Inst | Fidelity International Small Cap Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Fund/Fidelity Advisor® International Small Cap Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 47% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.20% June 30, 2009
Lowest Quarter Return-25.78%September 30, 2008
Year-to-Date Return-14.82% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity International Small Cap Fund | Fidelity International Small Cap Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.90% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.32%
Total annual operating expenses rr_ExpensesOverAssets 1.22%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 124
3 years rr_ExpenseExampleYear03 387
5 years rr_ExpenseExampleYear05 670
10 years rr_ExpenseExampleYear10 1,477
Annual Total Returns rr_BarChartTableAbstract  
2004 rr_AnnualReturn2004 29.43%
2005 rr_AnnualReturn2005 29.41%
2006 rr_AnnualReturn2006 14.19%
2007 rr_AnnualReturn2007 13.23%
2008 rr_AnnualReturn2008 (46.46%)
2009 rr_AnnualReturn2009 45.53%
2010 rr_AnnualReturn2010 25.52%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.20%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.78%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.82%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity International Small Cap Fund | Return Before Taxes | Fidelity International Small Cap Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 25.52%
Past 5 years rr_AverageAnnualReturnYear05 4.80%
Life of class rr_AverageAnnualReturnSinceInception 16.83% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
Inst | Fidelity International Small Cap Fund | Return After Taxes on Distributions | Fidelity International Small Cap Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 24.29%
Past 5 years rr_AverageAnnualReturnYear05 3.11%
Life of class rr_AverageAnnualReturnSinceInception 15.09% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
Inst | Fidelity International Small Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Small Cap Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 16.81%
Past 5 years rr_AverageAnnualReturnYear05 3.76%
Life of class rr_AverageAnnualReturnSinceInception 14.62% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
Inst | Fidelity International Small Cap Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 13.95% [28]
Inception Date rr_AverageAnnualReturnInceptionDate May 27, 2003
Inst | Fidelity International Small Cap Opportunities Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Small Cap Opportunities Fund/Fidelity Advisor® International Small Cap Opportunities Fund Institutional
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 24.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.advisor.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.advisor.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.58% June 30, 2009
Lowest Quarter Return-34.41%December 31, 2008
Year-to-Date Return-13.56% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Inst | Fidelity International Small Cap Opportunities Fund | Fidelity International Small Cap Opportunities Fund - Institutional Class
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 2.00% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.66% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.37%
Total annual operating expenses rr_ExpensesOverAssets 1.03%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 105
3 years rr_ExpenseExampleYear03 328
5 years rr_ExpenseExampleYear05 569
10 years rr_ExpenseExampleYear10 1,259
Annual Total Returns rr_BarChartTableAbstract  
2006 rr_AnnualReturn2006 25.64%
2007 rr_AnnualReturn2007 3.01%
2008 rr_AnnualReturn2008 (58.49%)
2009 rr_AnnualReturn2009 46.40%
2010 rr_AnnualReturn2010 23.31%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.58%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (34.41%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (13.56%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Inst | Fidelity International Small Cap Opportunities Fund | Return Before Taxes | Fidelity International Small Cap Opportunities Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 23.31%
Past 5 years rr_AverageAnnualReturnYear05 (0.61%)
Life of class rr_AverageAnnualReturnSinceInception 3.72% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Inst | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions | Fidelity International Small Cap Opportunities Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 22.96%
Past 5 years rr_AverageAnnualReturnYear05 (1.01%)
Life of class rr_AverageAnnualReturnSinceInception 3.33% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Inst | Fidelity International Small Cap Opportunities Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity International Small Cap Opportunities Fund - Institutional Class
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Institutional Class
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 15.57%
Past 5 years rr_AverageAnnualReturnYear05 (0.36%)
Life of class rr_AverageAnnualReturnSinceInception 3.35% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
Inst | Fidelity International Small Cap Opportunities Fund | MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Past 5 years rr_AverageAnnualReturnYear05 2.94%
Life of class rr_AverageAnnualReturnSinceInception 5.30% [13]
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 02, 2005
F | Fidelity Series Emerging Markets Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series Emerging Markets Fund/F
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 104% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 104.00%
Strategy [Heading] rr_StrategyHeading Principal 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.
  • Allocating investments across different emerging market countries.
  • Allocating the fund's assets across different market sectors (at present, consumer discretionary, consumer staples, energy, financials, health care, industrials, information technology, materials, telecom services, and utilities), using different Fidelity managers.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Allocating the fund's assets across different market sectors (at present, consumer discretionary, consumer staples, energy, financials, health care, industrials, information technology, materials, telecom services, and utilities), using different Fidelity managers.
Risk [Heading] rr_RiskHeading Principal 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.401k.com and log in for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return19.24%September 30, 2010
Lowest Quarter Return-9.54%June 30, 2010
Year-to-Date Return-25.70%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
F | Fidelity Series Emerging Markets Fund | Fidelity Series Emerging Markets Fund - Class F
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual operating expenses rr_ExpensesOverAssets 0.91%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 93
3 years rr_ExpenseExampleYear03 290
5 years rr_ExpenseExampleYear05 504
10 years rr_ExpenseExampleYear10 1,120
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 22.08%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 19.24%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (9.54%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (25.70%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
F | Fidelity Series Emerging Markets Fund | Return Before Taxes | Fidelity Series Emerging Markets Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 22.08%
Life of class rr_AverageAnnualReturnSinceInception 35.96% [33]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 26, 2009
F | Fidelity Series Emerging Markets Fund | Return After Taxes on Distributions | Fidelity Series Emerging Markets Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 20.96%
Life of class rr_AverageAnnualReturnSinceInception 32.23% [33]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 26, 2009
F | Fidelity Series Emerging Markets Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series Emerging Markets Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.97%
Life of class rr_AverageAnnualReturnSinceInception 28.79% [33]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 26, 2009
F | Fidelity Series Emerging Markets Fund | MSCI® Emerging Markets Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Emerging Markets Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 19.20%
Life of class rr_AverageAnnualReturnSinceInception 34.42% [33]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 26, 2009
F | Fidelity Series International Growth Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Growth Fund/F
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 23% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 23.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Normally investing in companies Fidelity Management & Research Company (FMR) believes have above-average growth potential (stocks of these companies are often called "growth" stocks).
  • Allocating investments across countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.401k.com and log in for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return18.99%September 30, 2010
Lowest Quarter Return-12.07%June 30, 2010
Year-to-Date Return-15.56%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
F | Fidelity Series International Growth Fund | Fidelity Series International Growth Fund - Class F
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.74% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.05%
Total annual operating expenses rr_ExpensesOverAssets 0.79%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 81
3 years rr_ExpenseExampleYear03 252
5 years rr_ExpenseExampleYear05 439
10 years rr_ExpenseExampleYear10 978
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 16.74%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.99%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.07%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.56%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
F | Fidelity Series International Growth Fund | Return Before Taxes | Fidelity Series International Growth Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.74%
Life of class rr_AverageAnnualReturnSinceInception 12.77% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Growth Fund | Return After Taxes on Distributions | Fidelity Series International Growth Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.63%
Life of class rr_AverageAnnualReturnSinceInception 12.67% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Growth Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Growth Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 11.03%
Life of class rr_AverageAnnualReturnSinceInception 8.45% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Growth Fund | MSCI® EAFE® Growth Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Growth Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 12.35%
Life of class rr_AverageAnnualReturnSinceInception 9.76% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Small Cap Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Small Cap Fund/F
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.401k.com and log in for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return18.13%September 30, 2010
Lowest Quarter Return-8.98%June 30, 2010
Year-to-Date Return-14.35%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
F | Fidelity Series International Small Cap Fund | Fidelity Series International Small Cap Fund - Class F
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.86% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.07%
Total annual operating expenses rr_ExpensesOverAssets 0.93%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 95
3 years rr_ExpenseExampleYear03 296
5 years rr_ExpenseExampleYear05 515
10 years rr_ExpenseExampleYear10 1,143
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 22.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.13%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (8.98%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.35%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
F | Fidelity Series International Small Cap Fund | Return Before Taxes | Fidelity Series International Small Cap Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 22.04%
Life of class rr_AverageAnnualReturnSinceInception 19.98% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Small Cap Fund | Return After Taxes on Distributions | Fidelity Series International Small Cap Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 21.65%
Life of class rr_AverageAnnualReturnSinceInception 19.62% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Small Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Small Cap Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.54%
Life of class rr_AverageAnnualReturnSinceInception 13.22% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Small Cap Fund | MSCI® EAFE® Small Cap Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Life of class rr_AverageAnnualReturnSinceInception 17.36% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Value Fund/F
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 78% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 78.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in securities of companies that Fidelity Management & Research Company (FMR) believes are undervalued in the marketplace in relation to factors such as assets, sales, earnings, growth potential, or cash flow, or in relation to securities of other companies in the same industry (stocks of these companies are often called "value" stocks).
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.401k.com and log in for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return17.76%September 30, 2010
Lowest Quarter Return-16.13%June 30, 2010
Year-to-Date Return-19.68%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
F | Fidelity Series International Value Fund | Fidelity Series International Value Fund - Class F
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual operating expenses rr_ExpensesOverAssets 0.74%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 76
3 years rr_ExpenseExampleYear03 237
5 years rr_ExpenseExampleYear05 411
10 years rr_ExpenseExampleYear10 918
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 4.44%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.76%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (16.13%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (19.68%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
F | Fidelity Series International Value Fund | Return Before Taxes | Fidelity Series International Value Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 4.44%
Life of class rr_AverageAnnualReturnSinceInception 1.31% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Value Fund | Return After Taxes on Distributions | Fidelity Series International Value Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 4.01%
Life of class rr_AverageAnnualReturnSinceInception 0.92% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Value Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Value Fund - Class F
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Class F
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 3.10%
Life of class rr_AverageAnnualReturnSinceInception 1.04% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
F | Fidelity Series International Value Fund | MSCI® EAFE® Value Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Value Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 3.40%
Life of class rr_AverageAnnualReturnSinceInception 1.04% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
K | Fidelity Diversified International Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Diversified International Fund/K
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital growth.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 45% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 45.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance is not an indication of future performance.

Visit www.401k.com and log in for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return22.94% June 30, 2009
Lowest Quarter Return-13.70%June 30, 2010
Year-to-Date Return-17.66% September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
For the periods ended
December 31, 2010
K | Fidelity Diversified International Fund | Fidelity Diversified International Fund - Class K
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.65% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.08%
Total annual operating expenses rr_ExpensesOverAssets 0.73%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 75
3 years rr_ExpenseExampleYear03 233
5 years rr_ExpenseExampleYear05 406
10 years rr_ExpenseExampleYear10 906
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 32.08%
2010 rr_AnnualReturn2010 9.85%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.94%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (13.70%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (17.66%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class K
Past 1 year rr_AverageAnnualReturnYear01 9.85%
Life of class rr_AverageAnnualReturnSinceInception (6.90%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity Diversified International Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Life of class rr_AverageAnnualReturnSinceInception (6.39%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity Overseas Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Overseas Fund/K
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 77% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 77.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing at least 80% of assets in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance is not an indication of future performance.

Visit www.401k.com and log in for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return24.15%June 30, 2009
Lowest Quarter Return-15.14%June 30, 2010
Year-to-Date Return-20.53%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
For the periods ended
December 31, 2010
K | Fidelity Overseas Fund | Fidelity Overseas Fund - Class K
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.46% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual operating expenses rr_ExpensesOverAssets 0.56%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 57
3 years rr_ExpenseExampleYear03 179
5 years rr_ExpenseExampleYear05 313
10 years rr_ExpenseExampleYear10 701
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 25.52%
2010 rr_AnnualReturn2010 6.77%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.15%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.14%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (20.53%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class K
Past 1 year rr_AverageAnnualReturnYear01 6.77%
Life of class rr_AverageAnnualReturnSinceInception (9.84%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity Overseas Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Life of class rr_AverageAnnualReturnSinceInception (6.39%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity International Discovery Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® International Discovery Fund/K
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks long-term growth of capital.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 75% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 75.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities.
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance is not an indication of future performance.

Visit www.401k.com and log in for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return22.30%June 30, 2009
Lowest Quarter Return-14.11%June 30, 2010
Year-to-Date Return-18.02%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
For the periods ended
December 31, 2010
K | Fidelity International Discovery Fund | Fidelity International Discovery Fund - Class K
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.00% [1]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual operating expenses rr_ExpensesOverAssets 0.80%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 82
3 years rr_ExpenseExampleYear03 255
5 years rr_ExpenseExampleYear05 444
10 years rr_ExpenseExampleYear10 990
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 30.37%
2010 rr_AnnualReturn2010 11.25%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.30%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (14.11%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (18.02%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class K
Past 1 year rr_AverageAnnualReturnYear01 11.25%
Life of class rr_AverageAnnualReturnSinceInception (5.35%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity International Discovery Fund | MSCI® EAFE® (Europe, Australasia, Far East) Index (reflects no deduction for fees or expenses)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® (Europe, Australasia, Far East) Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees or expenses)
Past 1 year rr_AverageAnnualReturnYear01 7.88%
Life of class rr_AverageAnnualReturnSinceInception (6.39%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity Emerging Markets Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Emerging Markets Fund/K
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee 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.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 122% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 122.00%
Strategy [Heading] rr_StrategyHeading Principal 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.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • 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.
Risk [Heading] rr_RiskHeading Principal 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Index section of the prospectus. Past performance is not an indication of future performance.

Visit www.401k.com and log in for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.401k.com and log in for updated return information
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return36.39% June 30, 2009
Lowest Quarter Return-10.09%June 30, 2010
Year-to-Date Return-24.10%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
For the periods ended
December 31, 2010
K | Fidelity Emerging Markets Fund | Fidelity Emerging Markets Fund - Class K
  
Shareholder fees rr_ShareholderFeesAbstract  
Redemption fee on shares held (as a % of amount redeemed) rr_RedemptionFeeOverRedemption 1.50% [3]
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.71%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.16%
Total annual operating expenses rr_ExpensesOverAssets 0.87%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 89
3 years rr_ExpenseExampleYear03 278
5 years rr_ExpenseExampleYear05 482
10 years rr_ExpenseExampleYear10 1,073
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 76.50%
2010 rr_AnnualReturn2010 18.49%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 36.39%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.09%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (24.10%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel Class K
Past 1 year rr_AverageAnnualReturnYear01 18.49%
Life of class rr_AverageAnnualReturnSinceInception (5.22%) [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
K | Fidelity Emerging Markets Fund | MSCI® Emerging Markets Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Emerging Markets Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 19.20%
Life of class rr_AverageAnnualReturnSinceInception 1.44% [24]
Inception Date rr_AverageAnnualReturnInceptionDate May 09, 2008
Series | Fidelity Series Emerging Markets Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series Emerging Markets Fund/Fidelity Series Emerging Markets Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 104% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 104.00%
Strategy [Heading] rr_StrategyHeading Principal 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.
  • Allocating investments across different emerging market countries.
  • Allocating the fund's assets across different market sectors (at present, consumer discretionary, consumer staples, energy, financials, health care, industrials, information technology, materials, telecom services, and utilities), using different Fidelity managers.
  • 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.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration
  • Allocating the fund's assets across different market sectors (at present, consumer discretionary, consumer staples, energy, financials, health care, industrials, information technology, materials, telecom services, and utilities), using different Fidelity managers.
Risk [Heading] rr_RiskHeading Principal 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Years

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the periods shown in the chart:
Returns
Quarter ended
Highest Quarter Return35.25%June 30, 2009
Lowest Quarter Return-9.61%June 30, 2010
Year-to-Date Return-25.80%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Series | Fidelity Series Emerging Markets Fund | Fidelity Series Emerging Markets Fund - Series
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.81%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.31%
Total annual operating expenses rr_ExpensesOverAssets 1.12%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 114
3 years rr_ExpenseExampleYear03 356
5 years rr_ExpenseExampleYear05 617
10 years rr_ExpenseExampleYear10 1,363
Annual Total Returns rr_BarChartTableAbstract  
2009 rr_AnnualReturn2009 71.18%
2010 rr_AnnualReturn2010 21.85%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 35.25%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (9.61%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (25.80%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Series | Fidelity Series Emerging Markets Fund | Return Before Taxes | Fidelity Series Emerging Markets Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 21.85%
Life of class rr_AverageAnnualReturnSinceInception 47.09% [35]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 09, 2008
Series | Fidelity Series Emerging Markets Fund | Return After Taxes on Distributions | Fidelity Series Emerging Markets Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 20.80%
Life of class rr_AverageAnnualReturnSinceInception 44.13% [35]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 09, 2008
Series | Fidelity Series Emerging Markets Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series Emerging Markets Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series Emerging Markets Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.82%
Life of class rr_AverageAnnualReturnSinceInception 39.38% [35]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 09, 2008
Series | Fidelity Series Emerging Markets Fund | MSCI® Emerging Markets Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® Emerging Markets Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 19.20%
Life of class rr_AverageAnnualReturnSinceInception 48.38% [35]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 09, 2008
Series | Fidelity Series International Growth Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Growth Fund/Fidelity Series International Growth Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 23% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 23.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Normally investing in companies Fidelity Management & Research Company (FMR) believes have above-average growth potential (stocks of these companies are often called "growth" stocks).
  • Allocating investments across countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return18.79%September 30, 2010
Lowest Quarter Return-12.17%June 30, 2010
Year-to-Date Return-15.68%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Series | Fidelity Series International Growth Fund | Fidelity Series International Growth Fund - Series
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.74% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.26%
Total annual operating expenses rr_ExpensesOverAssets 1.00%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 102
3 years rr_ExpenseExampleYear03 318
5 years rr_ExpenseExampleYear05 552
10 years rr_ExpenseExampleYear10 1,225
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 16.44%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.79%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.17%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (15.68%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Series | Fidelity Series International Growth Fund | Return Before Taxes | Fidelity Series International Growth Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Growth Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 16.44%
Life of class rr_AverageAnnualReturnSinceInception 12.50% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Growth Fund | Return After Taxes on Distributions | Fidelity Series International Growth Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Growth Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 16.34%
Life of class rr_AverageAnnualReturnSinceInception 12.42% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Growth Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Growth Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Growth Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 10.81%
Life of class rr_AverageAnnualReturnSinceInception 8.25% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Growth Fund | MSCI® EAFE® Growth Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Growth Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 12.35%
Life of class rr_AverageAnnualReturnSinceInception 9.76% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Small Cap Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Small Cap Fund/Fidelity Series International Small Cap Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 22.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing at least 80% of assets in securities of companies with small market capitalizations (which, for purposes of this fund, are those companies with market capitalizations of $5 billion or less).
  • Normally investing primarily in common stocks.
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • 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.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return18.17%September 30, 2010
Lowest Quarter Return-9.09%June 30, 2010
Year-to-Date Return-14.52%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Series | Fidelity Series International Small Cap Fund | Fidelity Series International Small Cap Fund - Series
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.86% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.28%
Total annual operating expenses rr_ExpensesOverAssets 1.14%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 116
3 years rr_ExpenseExampleYear03 362
5 years rr_ExpenseExampleYear05 628
10 years rr_ExpenseExampleYear10 1,386
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 21.80%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 18.17%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (9.09%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.52%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Series | Fidelity Series International Small Cap Fund | Return Before Taxes | Fidelity Series International Small Cap Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 21.80%
Life of class rr_AverageAnnualReturnSinceInception 19.76% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Small Cap Fund | Return After Taxes on Distributions | Fidelity Series International Small Cap Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 21.46%
Life of class rr_AverageAnnualReturnSinceInception 19.45% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Small Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Small Cap Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Small Cap Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 14.39%
Life of class rr_AverageAnnualReturnSinceInception 13.08% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Small Cap Fund | MSCI® EAFE® Small Cap Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Small Cap Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 22.13%
Life of class rr_AverageAnnualReturnSinceInception 17.36% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Fund Summary
Fund/Class:
Fidelity® Series International Value Fund/Fidelity Series International Value Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks capital appreciation.
Fee Table fit744822_FundFeesAndExpensesAbstract  
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Annual class operating expenses rr_OperatingExpensesAbstract  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual class operating expenses (expenses that you pay each year as a % of the value of your investment)
Expense Example rr_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 Turnover fit744822_PortfolioTurnoverAltAbstract  
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (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. During the most recent fiscal year, the fund's portfolio turnover rate was 78% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 78.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
  • Normally investing primarily in non-U.S. securities, including securities of issuers located in emerging markets.
  • Normally investing primarily in common stocks.
  • Investing in securities of companies that Fidelity Management & Research Company (FMR) believes are undervalued in the marketplace in relation to factors such as assets, sales, earnings, growth potential, or cash flow, or in relation to securities of other companies in the same industry (stocks of these companies are often called "value" stocks).
  • Allocating investments across different countries and regions.
  • 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_RiskHeading Principal 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 Exposure. 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.
  • "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.

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_RiskNotInsuredDepositoryInstitution 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.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Performance fit744822_FundPastPerformanceAbstract  
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information is intended to help you understand the risks of investing in the fund. The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.

Visit www.fidelity.com for updated return information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.fidelity.com
Annual Total Returns rr_BarChartTableAbstract  
Bar Chart [Heading] rr_BarChartHeading

Year-by-Year Returns

Calendar Year

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the period shown in the chart:
Returns
Quarter ended
Highest Quarter Return17.65%September 30, 2010
Lowest Quarter Return-16.15%June 30, 2010
Year-to-Date Return-19.72%September 30, 2011
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
For the periods ended
December 31, 2010
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Series | Fidelity Series International Value Fund | Fidelity Series International Value Fund - Series
  
Shareholder fees rr_ShareholderFeesAbstract  
Shareholder fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Annual class operating expenses rr_OperatingExpensesAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [2]
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.25%
Total annual operating expenses rr_ExpensesOverAssets 0.95%
Expense Example rr_ExpenseExampleAbstract  
1 year rr_ExpenseExampleYear01 97
3 years rr_ExpenseExampleYear03 303
5 years rr_ExpenseExampleYear05 525
10 years rr_ExpenseExampleYear10 1,166
Annual Total Returns rr_BarChartTableAbstract  
2010 rr_AnnualReturn2010 4.12%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.65%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2010
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (16.15%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (19.72%)
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2011
Series | Fidelity Series International Value Fund | Return Before Taxes | Fidelity Series International Value Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Value Fund
Label rr_AverageAnnualReturnLabel Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 4.12%
Life of class rr_AverageAnnualReturnSinceInception 1.02% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Value Fund | Return After Taxes on Distributions | Fidelity Series International Value Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Value Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 3.73%
Life of class rr_AverageAnnualReturnSinceInception 0.67% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Value Fund | Return After Taxes on Distributions and Sale of Fund Shares | Fidelity Series International Value Fund - Series
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Column rr_AverageAnnualReturnColumnName Fidelity Series International Value Fund
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 2.89%
Life of class rr_AverageAnnualReturnSinceInception 0.86% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
Series | Fidelity Series International Value Fund | MSCI® EAFE® Value Index (reflects no deduction for fees, expenses, or taxes)
  
Average Annual Total Returns rr_AverageAnnualReturnAbstract  
Label rr_AverageAnnualReturnLabel MSCI® EAFE® Value Index
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 3.40%
Life of class rr_AverageAnnualReturnSinceInception 1.04% [34]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 03, 2009
[1] Held less than 30 days
[2] (fluctuates based on the fund's performance relative to a securities market index)
[3] Held less than 90 days
[4] The fund may invest in Fidelity Commodity Strategy Central Fund, which in turn invests in a wholly-owned subsidiary that invests in commodity-linked derivative instruments. Fidelity Management & Research Company (FMR) has contractually agreed to waive the fund's management fee in an amount equal to its proportionate share of the management fee paid to FMR by the subsidiary based on the fund's proportionate ownership of the central fund. This arrangement will remain in effect for at least one year from the effective date of the prospectus, and will remain in effect thereafter as long as FMR's contract with the subsidiary is in place. If FMR's contract with the subsidiary is terminated, FMR, in its sole discretion, may discontinue the arrangement. For the fund's most recent fiscal year, the waiver rounded to less than 0.01% for the class.
[5] From March 25, 2009.
[6] Differs from ratios of expenses to average net assets in the financial highlights section of the prospectus because of acquired fund fees and expenses.
[7] Effective April 1, 2011, 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 1.20%. This arrangement will remain in effect through December 31, 2012.
[8] From November 1, 2007.
[9] For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses.
[10] From May 18, 2006.
[11] From May 8, 2008.
[12] From September 18, 2002.
[13] From August 2, 2005.
[14] 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.
[15] Declines over 6 years from 5.00% to 0%.
[16] On Class C shares redeemed less than one year after purchase.
[17] From February 19, 2009.
[18] The fund may invest in Fidelity Commodity Strategy Central Fund, which in turn invests in a wholly-owned subsidiary that invests in commodity-linked derivative instruments. Fidelity Management & Research Company (FMR) has contractually agreed to waive the fund's management fee in an amount equal to its proportionate share of the management fee paid to FMR by the subsidiary based on the fund's proportionate ownership of the central fund. This arrangement will remain in effect for at least one year from the effective date of the prospectus, and will remain in effect thereafter as long as FMR's contract with the subsidiary is in place. If FMR's contract with the subsidiary is terminated, FMR, in its sole discretion, may discontinue the arrangement. For the fund's most recent fiscal year, the waiver rounded to less than 0.01% for each class.
[19] From January 6, 2005.
[20] Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses.
[21] Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Class A, Class T, Class B, 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: 1.45% Effective Date 4/1/11, Class T: 1.70% Effective Date 4/1/11, Class B: 2.20% Effective Date 4/1/11, Class C: 2.20% Effective Date 4/1/11. These arrangements will remain in effect through December 31, 2012.
[22] Fidelity Management & Research Company (FMR) has contractually agreed to reimburse Class A, Class T, Class B, 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: 1.45%, Class T: 1.70%, Class B: 2.20%, Class C: 2.20%. These arrangements will remain in effect through December 31, 2012.
[23] From May 2, 2007.
[24] From May 9, 2008.
[25] The returns shown above are for Fidelity Japan Fund, a class of shares of the fund that is not offered through this prospectus. Class A, Class T, Class B, and Class C would have substantially similar annual returns to Fidelity Japan Fund because the classes are invested in the same portfolio of securities. Class A's, Class T's, Class B's, and Class C's returns will be lower than Fidelity Japan Fund's returns to the extent that Class A, Class T, Class B, and Class C have higher expenses.
[26] Based on estimated amounts for the current fiscal year.
[27] The returns shown above are for Fidelity Latin America Fund, a class of shares of the fund that is not offered through this prospectus. Class A, Class T, Class B, and Class C would have substantially similar annual returns to Fidelity Latin America Fund because the classes are invested in the same portfolio of securities. Class A's, Class T's, Class B's, and Class C's returns will be lower than Fidelity Latin America Fund's returns to the extent that Class A, Class T, Class B, and Class C have higher expenses.
[28] From May 27, 2003.
[29] Effective April 1, 2011, 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 1.20%. This arrangement will remain in effect through December 31, 2012.
[30] 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 1.20%. This arrangement will remain in effect through December 31, 2012.
[31] The returns shown above are for Fidelity Japan Fund, a class of shares of the fund that is not offered through this prospectus. Institutional Class would have substantially similar annual returns to Fidelity Japan Fund because the classes are invested in the same portfolio of securities. Institutional Class's returns will be lower than Fidelity Japan Fund's returns to the extent that Institutional Class has higher expenses.
[32] The returns shown above are for Fidelity Latin America Fund, a class of shares of the fund that is not offered through this prospectus. Institutional Class would have substantially similar annual returns to Fidelity Latin America Fund because the classes are invested in the same portfolio of securities. Institutional Class's returns will be lower than Fidelity Latin America Fund's returns to the extent that Institutional Class has higher expenses.
[33] From June 26, 2009.
[34] From December 3, 2009.
[35] From December 9, 2008.