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  <rr:ExpenseExampleHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund may pay transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; 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.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;div class="MetaData"&gt; &lt;div&gt; &lt;p&gt;&lt;font style="text-align: center; line-height: 19pt; display: block; font-family: Arial; font-size: 17pt; font-weight: normal;" class="_mt"&gt;iSHARES&lt;font style="FONT-FAMILY: arial" size="3"&gt;&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt; HUMAN RIGHTS INDEX FUND &lt;/font&gt;&lt;/p&gt; &lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="text-align: left; line-height: 11pt; font-family: Arial; margin-left: 35%; font-size: 9.5pt; font-weight: normal; margin-right: 10%;" class="_mt"&gt;Ticker: HUMN&lt;/font&gt;&lt;font style="text-align: right; line-height: 11pt; font-family: Arial; font-size: 9.5pt; font-weight: normal;" class="_mt"&gt;Stock Exchange: NYSE Arca&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:OperatingExpensesCaption contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="1"&gt;&lt;center&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;br/&gt;(ongoing expenses that you pay each year as a &lt;br/&gt;percentage of the value of your investments)&lt;/b&gt;&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="USD">19</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;div style="display:none"&gt;~ http://www.iShares.com/role/ScheduleAnnualFundOperatingExpensesTransposediSharesHumanRightsIndexFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The following table describes the fees and expenses that you will incur if you own shares of the Fund. The investment advisory agreement between iShares Trust (the &amp;#8220;Trust&amp;#8221;) and BlackRock Fund Advisors (&amp;#8220;BFA&amp;#8221;) (the &amp;#8220;Investment Advisory Agreement&amp;#8221;) provides that BFA will pay all operating expenses of the Fund, except interest expenses, taxes, brokerage expenses, future distribution fees or expenses, and extraordinary expenses. BFA, the investment adviser to the Fund, has contractually agreed to waive a portion of its management fees in order to limit the Total Annual Fund Operating Expenses to 0.19% of average daily net assets until December 31, 2015. The contractual waiver may be terminated prior to December 31, 2015 only upon written agreement of the Trust and BFA.&lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;You may also incur usual and customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the example that follows:&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">-0.0016</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This Example is intended to help you compare the cost of owning shares of the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Principal Investment Strategies&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <dei:DocumentType contextRef="Duration_26Oct2011_25Oct2012">485BPOS</dei:DocumentType>
  <dei:EntityRegistrantName contextRef="Duration_26Oct2011_25Oct2012">iSHARES TRUST</dei:EntityRegistrantName>
  <rr:RiskNondiversifiedStatus contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Non-Diversification Risk&lt;/i&gt;.&lt;/b&gt; The Fund may invest a large percentage of its assets in securities issued by or representing a small number of issuers. As a result, the Fund&amp;#8217;s performance may depend on the performance of a small number of issuers.&lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <dei:DocumentCreationDate contextRef="Duration_26Oct2011_25Oct2012">2012-10-25</dei:DocumentCreationDate>
  <rr:ObjectiveHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Investment Objective &lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Fees and Expenses&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="USD">61</rr:ExpenseExampleYear03>
  <rr:PortfolioTurnoverHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Portfolio Turnover. &lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Underlying Index aims to exclude companies that are implicated in certain serious human rights violations or with substantial, strategic involvement with repressive regimes with poor human rights records. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;The selection universe for the Underlying Index is the MSCI All Country World Index. The Underlying Index is comprised only of equity securities. Companies are then excluded from this list based on MSCI ESG (Environmental, Social and Governance) research data as of the end of January, April, July and October. The Fund may invest in emerging market countries. As of August 31, 2012, the Underlying Index consisted of companies in the following countries: Australia, Austria, Belgium, Brazil, Canada, Chile, China, Colombia, the Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Malaysia, Mexico, Morocco, the Netherlands, New Zealand, Norway, Peru, the Philippines, Poland, Portugal, Russia, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey, the United Kingdom and the United States (together, the &amp;#8220;ACWI countries&amp;#8221;). &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;As of August 31, 2012, the Underlying Index was comprised of 2,392 securities. Components primarily include consumer discretionary, consumer staples, financial and information technology companies. The components of the Underlying Index, and the degree to which these components represent certain industries, may change over time. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;BFA uses a &amp;#8220;passive&amp;#8221; or indexing approach to try to achieve the Fund&amp;#8217;s investment objective. Unlike many investment companies, the Fund does not try to &amp;#8220;beat&amp;#8221; the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;Indexing may eliminate the chance that the Fund will substantially outperform the Underlying Index but also may reduce some of the risks of active management, such as poor security selection. Indexing seeks to achieve lower costs and better after-tax performance by keeping portfolio turnover low in comparison to actively managed investment companies. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;BFA uses a representative sampling indexing strategy to manage the Fund. &amp;#8220;Representative sampling&amp;#8221; is an indexing strategy that involves investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The securities selected are expected to have, in the aggregate, investment characteristics (based on factors such as market capitalization and industry weightings), fundamental characteristics (such as return variability and yield) and liquidity measures similar to those of the Underlying Index. The Fund may or may not hold all of the securities in the Underlying Index. The Fund will not hold the securities of any company that has been removed from the Underlying Index based on MSCI ESG screens. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund generally invests at least 90% of its assets in securities of the Underlying Index or in depositary receipts representing securities of the Underlying Index. The Fund may invest the remainder of its assets in certain futures, options and swap contracts, cash and cash equivalents, including money market funds advised by BFA or its affiliates, as well as in securities not included in the Underlying Index, but which BFA believes will help the Fund track the Underlying Index. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund may lend securities representing up to one-third of the value of the Fund's total assets (including the value of the collateral received). &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Underlying Index is sponsored by an organization (the &amp;#8220;Index Provider&amp;#8221;) that is independent of the Fund and BFA. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund&amp;#8217;s Index Provider is MSCI Inc. (&amp;#8220;MSCI&amp;#8221;). &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Industry Concentration Policy.&lt;/b&gt; The Fund will concentrate its investments (&lt;i&gt;i.e.&lt;/i&gt;, hold 25% or more of its total assets) in a particular industry or group of industries, which may include large-, mid- or small-capitalization companies, to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) and repurchase agreements collateralized by U.S. government securities are not considered to be issued by members of any industry. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value per share (&amp;#8220;NAV&amp;#8221;), trading price, yield, total return and ability to meet its investment objective. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Asset Class Risk&lt;/i&gt;.&lt;/b&gt; Securities in the Underlying Index or in the Fund's portfolio may underperform in comparison to the general securities markets or other asset classes. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Concentration Risk.&lt;/i&gt;&lt;/b&gt; To the extent that the Fund's investments are concentrated in a particular issuer, region, country, market, industry or asset class, the Fund may be susceptible to loss due to adverse occurrences affecting that issuer, region, country, market, industry or asset class. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Consumer Discretionary Sector Risk. &lt;/i&gt;&lt;/b&gt;The consumer discretionary sector may be affected by changes in domestic and international economies, exchange and interest rates, competition, consumers' disposable income and consumer preferences, social trends and marketing campaigns. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Consumer Staples Sector Risk. &lt;/i&gt;&lt;/b&gt;The consumer staples sector may be affected by marketing campaigns, changes in consumer demands, government regulations and changes in commodity prices. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Currency Risk&lt;/i&gt;.&lt;/b&gt; Because the Fund's NAV is determined in U.S. dollars, the Fund's NAV could decline if the currency of a non-U.S. market in which the Fund invests depreciates against the U.S. dollar. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Custody Risk&lt;/i&gt;.&lt;/b&gt; Less developed markets are more likely to experience problems with the clearing and settling of trades and the holding of securities by local banks, agents and depositories. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Equity Securities Risk&lt;/i&gt;.&lt;/b&gt; Equity securities are subject to changes in value and their values may be more volatile than other asset classes. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Financial Sector Risk&lt;/i&gt;.&lt;/b&gt; Performance of companies in the financial sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. This sector has experienced significant losses in the recent past, and the impact of more stringent capital requirements and of recent or future regulation on any individual financial company or on the sector as a whole cannot be predicted. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Geographic Risk&lt;/i&gt;.&lt;/b&gt; A natural or other disaster could occur in a geographic region in which the Fund invests. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Index-Related Risk. &lt;/i&gt;&lt;/b&gt;There is no guarantee that the Fund will achieve a high degree of correlation to the Underlying Index and therefore achieve its investment objective. Market disruptions and regulatory restrictions are likely to have an adverse effect on the Fund&amp;#8217;s ability to adjust its exposure to the required levels in order to track the Underlying Index. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Information Technology Sector Risk.&lt;/i&gt;&lt;/b&gt; Information technology companies face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by loss or impairment of those rights. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Issuer Risk&lt;/i&gt;.&lt;/b&gt; Fund performance depends on the performance of individual securities to which the Fund has exposure. Changes to the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Management Risk&lt;/i&gt;.&lt;/b&gt; As the Fund may not fully replicate the Underlying Index, it is subject to the risk that BFA's investment management strategy may not produce the intended results. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Market Risk&lt;/i&gt;.&lt;/b&gt; The Fund could lose money over short periods due to short-term market movements and over longer periods during market downturns. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Market Trading Risk&lt;/i&gt;.&lt;/b&gt; The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. ANY OF THESE FACTORS, AMONG OTHERS, MAY LEAD TO THE FUND'S SHARES TRADING AT A PREMIUM OR DISCOUNT TO NAV. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Mid-Capitalization Companies Risk&lt;/i&gt;.&lt;/b&gt; Compared to large-capitalization companies, mid-capitalization companies may be less stable and more susceptible to adverse developments, and their securities may be more volatile and less liquid. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Non-Diversification Risk&lt;/i&gt;.&lt;/b&gt; The Fund may invest a large percentage of its assets in securities issued by or representing a small number of issuers. As a result, the Fund's performance may depend on the performance of a small number of issuers. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Non-U.S. Securities Risk&lt;/i&gt;.&lt;/b&gt; Investments in the securities of non-U.S. issuers are subject to the risks associated with investing in those non-U.S. markets, such as heightened risks of inflation or nationalization. The Fund may lose money due to political, economic and geographic events affecting a non-U.S. issuer or market. The Fund is specifically exposed to &lt;b&gt;European Economic Risk &lt;/b&gt;and&lt;b&gt; North American Economic Risk&lt;/b&gt;.&lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Passive Investment Risk&lt;/i&gt;.&lt;/b&gt; The Fund is not actively managed and BFA does not attempt to take defensive positions under any market conditions, including declining markets. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Privatization Risk&lt;/i&gt;.&lt;/b&gt; Some countries to which the Fund has exposure have begun a process of privatizing certain entities and industries. Privatized entities may lose money or be re-nationalized. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Reliance on Trading Partners Risk&lt;/i&gt;.&lt;/b&gt; The Fund invests in countries whose economies are heavily dependent upon trading with key partners. Any reduction in this trading may have an adverse impact on the Fund's investments. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Risk of Investing in Emerging Markets&lt;/i&gt;.&lt;/b&gt; The Fund's investments in emerging markets may be subject to a greater risk of loss than investments in more developed markets. Emerging markets may be more likely to experience inflation risk, political turmoil and rapid changes in economic conditions than more developed markets. Emerging markets often have less uniformity in accounting and reporting requirements, unreliable securities valuation and greater risk associated with custody of securities. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Risk of Investing in Russia. &lt;/i&gt;&lt;/b&gt;Investing in Russian securities involves significant risks, including legal, regulatory and economic risks that are specific to Russia. In addition, investing in Russian securities involves risks associated with the settlement of portfolio transactions and loss of the Fund&amp;#8217;s ownership rights in its portfolio securities, as a result of the system of share registration and custody in Russia. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Securities Lending Risk. &lt;/i&gt;&lt;/b&gt;The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the Fund's loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of the collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. These events could also trigger adverse tax consequences for the Fund. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Security Risk&lt;/i&gt;.&lt;/b&gt; Some countries and regions in which the Fund invests have experienced security concerns. Incidents involving a country's or region's security may cause uncertainty in these markets and may adversely affect their economies and the Fund's investments. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Structural Risk&lt;/i&gt;.&lt;/b&gt; The countries in which the Fund invests may be subject to considerable degrees of economic, political and social instability. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Tracking Error Risk&lt;/i&gt;.&lt;/b&gt; Tracking error is the divergence of the Fund&amp;#8217;s performance from that of the Underlying Index. Tracking error may occur because of imperfect correlation between the Fund&amp;#8217;s holdings of portfolio securities and those in the Underlying Index, pricing differences, the Fund&amp;#8217;s holding of cash, differences on timing of the accrual of dividends, changes to the Underlying Index or the need to meet various regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions. Tracking error also may result because the Fund incurs fees and expenses, while the Underlying Index does not. &lt;/font&gt;&lt;p style="margin-top:4px;margin-bottom:0px"&gt;&lt;/p&gt;&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;&lt;i&gt;Valuation Risk&lt;/i&gt;.&lt;/b&gt; The sale price the Fund could receive for a security may differ from the Fund's valuation of the security and may differ from the value used by the Underlying Index, particularly for securities that trade in low volume or volatile markets or that are valued using a fair value methodology. In addition, the value of the securities in the Fund's portfolio may change on days when shareholders will not be able to purchase or sell the Fund's shares.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <dei:DocumentPeriodEndDate contextRef="Duration_26Oct2011_25Oct2012">2012-10-25</dei:DocumentPeriodEndDate>
  <dei:EntityCentralIndexKey contextRef="Duration_26Oct2011_25Oct2012">0001100663</dei:EntityCentralIndexKey>
  <dei:AmendmentFlag contextRef="Duration_26Oct2011_25Oct2012">false</dei:AmendmentFlag>
  <rr:ExpenseExchangeTradedFundCommissions contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;You may also incur usual and customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the example that follows: &lt;/font&gt;</rr:ExpenseExchangeTradedFundCommissions>
  <rr:RiskLoseMoney contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;As with any investment, you could lose all or part of your investment in the Fund, and the Fund's performance could trail that of other investments.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;December 31, 2015&lt;/font&gt;</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <dei:DocumentEffectiveDate contextRef="Duration_26Oct2011_25Oct2012">2012-10-25</dei:DocumentEffectiveDate>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The iShares Human Rights Index Fund (the &amp;#8220;Fund&amp;#8221;) seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Human Rights Custom Index on MSCI ACWI (the &amp;#8220;Underlying Index&amp;#8221;). &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_26Oct2011_25Oct2012S000037043_MemberC000113877_Member" unitRef="pure">0.0019</rr:NetExpensesOverAssets>
  <rr:StrategyPortfolioConcentration contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Industry Concentration Policy.&lt;/b&gt; The Fund will concentrate its investments (&lt;i&gt;i.e.&lt;/i&gt;, hold 25% or more of its total assets) in a particular industry or group of industries, which may include large-, mid- or small-capitalization companies, to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) and repurchase agreements collateralized by U.S. government securities are not considered to be issued by members of any industry. &lt;/font&gt;</rr:StrategyPortfolioConcentration>
  <rr:RiskHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Summary of Principal Risks&lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;b&gt;Performance Information&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;As of the date of the Fund's prospectus (the &amp;#8220;Prospectus&amp;#8221;), the Fund has been in operation for less than one full calendar year and therefore does not report its performance information. &lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceOneYearOrLess contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;As of the date of the Fund's prospectus (the &amp;#8220;Prospectus&amp;#8221;), the Fund has been in operation for less than one full calendar year and therefore does not report its performance information. &lt;/font&gt;</rr:PerformanceOneYearOrLess>
  <rr:ProspectusDate contextRef="Duration_26Oct2011_25Oct2012">2012-10-25</rr:ProspectusDate>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_26Oct2011_25Oct2012S000037043_Member">&lt;div style="display:none"&gt;~ http://www.iShares.com/role/ScheduleExpenseExampleTransposediSharesHumanRightsIndexFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
</xbrl>
