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Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName T. Rowe Price International Funds, Inc.
Prospectus Date rr_ProspectusDate Mar. 01, 2013
Advisor Class | T. Rowe Price Global Infrastructure Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading T. Rowe Price

Global Infrastructure Fund—Advisor Class

SUMMARY
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks to provide long-term growth of capital.
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock Income is a secondary objective.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy and hold shares of the fund.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Fees and Expenses of the Fund’s Advisor Class

Shareholder fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual fund operating expenses
(expenses that you pay each year as a
percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2014
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 fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 34.6% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 34.60%
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year, the fund’s operating expenses remain the same, and the expense limitation currently in place is not renewed. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Investments, Risks, and Performance

Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The fund will normally invest at least 80% of its net assets (including any borrowings for investment purposes) in the securities of infrastructure-related companies throughout the world, including the U.S. The fund defines an infrastructure-related company as any company that derives at least 50% of its revenues or profits, either directly or indirectly, from the infrastructure industry or commits at least 50% of assets to activities related to the infrastructure industry. Under normal conditions, the fund will invest in at least five countries and at least 40% of its net assets will be invested in companies outside the U.S. (at least 30% of its net assets will be invested in companies outside the U.S. if foreign market conditions are not favorable).

Infrastructure refers to the systems of transportation, communication, energy and other essential services required for the normal functioning of society. Infrastructure assets are the physical structures and networks that provide these necessary services.

For purposes of selecting investments in infrastructure-related companies, the fund defines the infrastructure industry broadly. It includes companies involved in the following businesses and activities, among others:
  • building, operation, or maintenance of airports, marine ports, toll roads, bridges, railways, and other transportation systems;
  • telecommunications, wireless, satellite, cable and other communications networks;
  • power generation, storage, and distribution;
  • utilities such as electricity, oil, gas, water, sewage, and other public services;
  • construction and operation of social infrastructure such as courthouses, hospitals, and schools; and
  • providing services and materials necessary for the construction and operation of infrastructure assets.
The fund may invest in companies of any size and will shift assets between different types of companies within the infrastructure industry based on prevailing market conditions. While the fund invests with an awareness of the global economic backdrop and its outlook for industry sectors and individual countries, security selection is based on fundamental, bottom-up analysis that seeks to identify high-quality companies with both good appreciation prospects and some income-producing potential. We analyze the characteristics and investment prospects of a particular security and generally favor companies with characteristics such as attractive industry position, compelling business model, strong management, and reasonable stock price valuation.

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The fund will normally invest at least 80% of its net assets (including any borrowings for investment purposes) in the securities of infrastructure-related companies throughout the world, including the U.S. The fund defines an infrastructure-related company as any company that derives at least 50% of its revenues or profits, either directly or indirectly, from the infrastructure industry or commits at least 50% of assets to activities related to the infrastructure industry.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock As with any mutual fund, there is no guarantee that the fund will achieve its objective. The fund's share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund are summarized as follows:

Active management risk The fund is subject to the risk that the investment adviser's judgments about the attractiveness, value, or potential appreciation of the fund's investments may prove to be incorrect. If the securities selected and strategies employed by the fund fail to produce the intended results, the fund could underperform other funds with similar objectives and investment strategies.

Risks of stock investing Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising prices and falling prices. The value of a stock in which the fund invests may decline due to general weakness in the stock market or because of factors that affect a company or a particular industry.

Foreign investing risk Investing in the securities of non-U.S. companies involves special risks not typically associated with investing in U.S. companies. Foreign securities tend to be more volatile and less liquid than investments in U.S. securities, and may lose value because of adverse political, social, or economic developments overseas, or due to changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, foreign investments are subject to settlement practices, and regulatory and financial reporting standards, that differ from those of the U.S. These risks are heightened for the fund's investments in emerging markets.

Industry risk A fund that focuses its investments in specific industries or sectors is more susceptible to developments affecting those industries and sectors than a more broadly diversified fund. Because the fund focuses its investments in infrastructure-related companies, the fund will be more susceptible to developments affecting countries' infrastructure than a more broadly diversified fund would be and may perform poorly during a downturn in one or more industries related to infrastructure. Infrastructure-related companies can be negatively affected by adverse economic and political developments, as well as changes in regulations, environmental problems, casualty losses and increases in interest rates.
Risk Lose Money [Text] rr_RiskLoseMoney The fund's share price fluctuates, which means you could lose money by investing in the fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The bar chart showing calendar year returns and the average annual total returns table indicate risk by illustrating how much returns can differ from one year to the next and how fund performance compares with that of a comparable market index. The fund’s past performance (before and after taxes) is not necessarily an indication of future performance.

The fund can also experience short-term performance swings, as shown by the best and worst calendar quarter returns during the year depicted.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart showing calendar year returns and the average annual total returns table indicate risk by illustrating how much returns can differ from one year to the next and how fund performance compares with that of a comparable market index.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-638-8790
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress troweprice.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The fund’s past performance (before and after taxes) is not necessarily an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading Global Infrastructure Fund—Advisor Class
Calendar Year Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
     Quarter
Ended		      Total
Return
Best Quarter     3/31/12      8.42%
Worst Quarter     9/30/11         -14.76%
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns

Periods ended
December 31, 2012
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or individual retirement account.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock In addition, the average annual total returns table shows hypothetical after-tax returns to suggest how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or individual retirement account.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available through troweprice.com or may be obtained by calling 1-800-638-8790.
Advisor Class | T. Rowe Price Global Infrastructure Fund | T. Rowe Price Global Infrastructure Fund-Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
Redemption fee (as a percentage of amount redeemed on shares held for 90 days or less) rr_RedemptionFeeOverRedemption 2.00%
Management fees rr_ManagementFeesOverAssets 0.80%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 2.18%
Total annual fund operating expenses rr_ExpensesOverAssets 3.23%
Fee waiver/expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 2.03% [1]
Total annual fund operating expenses after fee waiver/expense reimbursement rr_NetExpensesOverAssets 1.20% [1]
1 year rr_ExpenseExampleYear01 122
3 years rr_ExpenseExampleYear03 805
5 years rr_ExpenseExampleYear05 1,512
10 years rr_ExpenseExampleYear10 3,391
2011 rr_AnnualReturn2011 (5.29%)
2012 rr_AnnualReturn2012 14.15%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2012
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.42%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (14.76%)
1 Year rr_AverageAnnualReturnYear01 14.15%
Since inception rr_AverageAnnualReturnSinceInception 5.11%
Inception date rr_AverageAnnualReturnInceptionDate Jan. 27, 2010
Advisor Class | T. Rowe Price Global Infrastructure Fund | Returns after taxes on distributions | T. Rowe Price Global Infrastructure Fund-Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 13.92%
Since inception rr_AverageAnnualReturnSinceInception 4.84%
Inception date rr_AverageAnnualReturnInceptionDate Jan. 27, 2010
Advisor Class | T. Rowe Price Global Infrastructure Fund | Returns after taxes on distributions and sale of fund shares | T. Rowe Price Global Infrastructure Fund-Advisor Class
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.91%
Since inception rr_AverageAnnualReturnSinceInception 4.48%
Inception date rr_AverageAnnualReturnInceptionDate Jan. 27, 2010
Advisor Class | T. Rowe Price Global Infrastructure Fund | UBS World Infrastructure & Utilities Index (reflects no deduction for fees, expenses, or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.86%
Since inception rr_AverageAnnualReturnSinceInception 4.49%
Advisor Class | T. Rowe Price Global Infrastructure Fund | Lipper Specialty/Miscellaneous Funds Average
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.79%
Since inception rr_AverageAnnualReturnSinceInception 8.27% [2]
Inception date rr_AverageAnnualReturnInceptionDate Jan. 31, 2010
[1] T. Rowe Price Associates, Inc. has agreed (through February 28, 2014) to waive its fees and/or bear any expenses (excluding interest, taxes, brokerage, extraordinary expenses, and acquired fund fees) that would cause the class's ratio of expenses to average net assets to exceed 1.20%. Termination of the agreement would require approval by the fund's Board of Directors. Fees waived and expenses paid under this agreement (and a previous limitation of 1.20%) are subject to reimbursement to T. Rowe Price Associates, Inc. by the fund whenever the class's expense ratio is below 1.20%. However, no reimbursement will be made more than three years after the waiver or payment, or if it would result in the expense ratio exceeding 1.20% (excluding interest, taxes, brokerage, extraordinary expenses, and acquired fund fees).
[2] Since 1/31/10.