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  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EXAMPLE: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;Example:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 id="Item_2" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.4805</rr:AnnualReturn2003>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 id="Item_3" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.2918</rr:AnnualReturn2003>
  <rr:AnnualReturn2003 id="Item_4" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.2551</rr:AnnualReturn2003>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 28% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 25% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 20% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualReturn2003 id="Item_5" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.4291</rr:AnnualReturn2003>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 4% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 21% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 37% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 33% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="USD">280</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 34% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:AnnualReturn2003 id="Item_6" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.2494</rr:AnnualReturn2003>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 id="Item_7" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.2663</rr:AnnualReturn2003>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="USD">141</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 id="Item_8" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.3545</rr:AnnualReturn2003>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="USD">280</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 id="Item_9" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">0.6505</rr:AnnualReturn2003>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
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  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
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  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012324_MemberC000033540_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
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  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012323_MemberC000033539_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="USD">76</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="USD">104</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="USD">252</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="USD">76</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="USD">85</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="USD">70</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019665_MemberC000055009_Member" unitRef="USD">68</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="USD">76</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="USD">85</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000031836_MemberC000099139_Member" unitRef="USD">90</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="USD">224</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="USD">180</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="USD">121</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="USD">280</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028870_MemberC000088522_Member" unitRef="USD">275</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="USD">280</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="USD">162</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt; &lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="USD">113</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="USD">307</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022631_MemberC000065485_Member" unitRef="USD">280</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000034874_MemberC000107256_Member" unitRef="USD">85</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member" unitRef="USD">224</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example: &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="USD">197</rr:ExpenseExampleYear05>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.1284</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)DowJonesLargeCapETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 400 Mid Cap Value ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 500 Value ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Dow Jones Mid Cap ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)DowJonesMidCapETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Dow Jones Large Cap ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 500 Growth ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 600 Small Cap Growth ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP400MidCapValueETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 400 Mid Cap Growth ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.1609</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.1298</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.1398</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.1679</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.1556</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP600SmallCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174; &lt;/sup&gt;S&amp;amp;P 600 Small Cap Value ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.1328</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP400MidCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.1443</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;center&gt;&lt;font style="FONT-FAMILY: Arial" size="3"&gt;FUND SUMMARIES&lt;/font&gt;&lt;/center&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Dow Jones Total Market ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 3% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.1589</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)DowJonesTotalMarketETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP600SmallCapValueETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP500GrowthETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Dow Jones REIT ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 7% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.1426</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.0886</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Global Dow ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 11% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP500ValueETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPCapitalMarketsETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)GlobalDowETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)DowJonesREITETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Bank ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 55% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&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; S&amp;amp;P&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; Dividend ETF &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRMorganStanleyTechnologyETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0.2009</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRAerospaceDefenseETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&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; S&amp;amp;P&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; Aerospace &amp;amp; Defense ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 94% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (September 28, 2011) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 23% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Capital Markets ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 64% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="pure">0.1035</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.18</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRDividendETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.5ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.5ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;  Computer Hardware ETF  &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Insurance ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 62% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPBankETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Building &amp;amp; Construction ETF &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="pure">0.1498</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Biotech ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 61% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRBuildingConstructionETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Morgan Stanley Technology ETF  &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0.4089</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 21% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Food &amp; Beverage ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">0.1701</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRComputerHardwareETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; LeisureTime ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRMetalsMiningETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Health Care Services ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRFoodBeverageETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (September 28, 2011) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 25% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Health Care Equipment ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&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; S&amp;amp;P&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; Homebuilders ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 46% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRHealthCareServicesETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRBiotechETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRHealthCareEquipmentETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Metals &amp; Mining ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 32% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="pure">0.4661</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="pure">0.0649</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Oil &amp;amp; Gas Exploration &amp;amp; Production ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Regional Banking ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 44% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRSPLeisureTimeETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0.1872</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPROilGasExplorationProductionETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Software &amp;amp; Services ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (September 28, 2011) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 32% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member" unitRef="pure">-0.1037</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Retail ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 39% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRSoftwareServicesETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Transportation ETF  &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 25% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="pure">0.2036</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRHomebuildersETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRTransportationETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRRetailETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; 1500 Value Tilt ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund pays 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&amp;#8217;s performance.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;SPDR&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; &lt;font style="FONT-FAMILY: ARIAL" size="5"&gt; S&amp;amp;P&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; Pharmaceuticals ETF&lt;/font&gt; &lt;/b&gt;</rr:RiskReturnHeading>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 31% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="pure">0.1807</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P 600 Small Cap ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 13% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="pure">0.1368</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Telecom ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 50% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Mortgage Finance ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 91% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="pure">0.2675</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;&lt;b&gt;SPDR&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; S&amp;amp;P&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; Outsourcing &amp;amp; IT Consulting ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Oil &amp;amp; Gas Equipment &amp;amp; Services ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 30% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="pure">-0.0158</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; 1500 Momentum Tilt ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174; &lt;/sup&gt;Barclays 1-3 Month T-Bill ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 619% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="pure">-0.0003</rr:BarChartYearToDateReturn>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial" size="5"&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; 1500 Volatility Tilt ETF&lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Short Term Treasury ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (November 30, 2011) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 24% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Wells Fargo&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Preferred Stock ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 69% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="pure">0.0428</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="pure">0.1274</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Long Term Treasury ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 22% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Intermediate Term Treasury ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 35% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="pure">0.0163</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays TIPS ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 23% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Intermediate Term Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 15% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="pure">0.0747</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Long Term Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 21% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Issuer Scored Corporate Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 17% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="pure">0.1086</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Convertible Securities ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 17% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="pure">0.1156</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Mortgage Backed Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 1,489% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="pure">0.0244</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial" size="5"&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Semiconductor ETF&lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 36% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Aggregate Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 428% of the average value of its portfolio.  &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="pure">0.0383</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="pure">-0.0149</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; DB International Government Inflation-Protected Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 40% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="pure">0.0016</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="pure">0.0635</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays International Treasury Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 38% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="pure">0.059</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen S&amp;amp;P High Yield Municipal Bond ETF  &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 24% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="pure">0.0324</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 50% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Short Term Corporate Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen S&amp;amp;P&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; VRDO Municipal Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 92% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="pure">0.0967</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Short Term International Treasury Bond ETF&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen Barclays New York Municipal Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 24% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen Barclays California Municipal Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 14% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="pure">0.0623</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="pure">0.0822</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen Barclays Short Term Municipal Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 23% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen Barclays Build America Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="pure">0.0157</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 112% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Nuveen Barclays Municipal Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 17% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="pure">0.1061</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="pure">0.0582</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 116% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="pure">0.0281</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;  Barclays International Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="pure">0.0842</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Short Term High Yield Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (March 14, 2012) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 16% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Emerging Markets Local Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 18% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; BofA Merrill Lynch Emerging Markets Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (June 18, 2012) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 6% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR Barclays Corporate Financial Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays High Yield Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR Barclays Corporate Industrial Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 38% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member" unitRef="pure">0.1068</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; BofA Merrill Lynch Crossover Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (June 18, 2012) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 1% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;SPDR Barclays Zero Coupon Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR Barclays Corporate Utilities Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR&amp;#174; S&amp;amp;P&amp;#174; Commercial Paper ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR Barclays Global Convertible Securities ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR Barclays CMBS ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; S&amp;amp;P Agency Bond ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR Barclays Breakeven Inflation ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;"Other Expenses" are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Corporate Bond ETF&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: Arial" size="5"&gt;&lt;b&gt;SPDR&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt; Barclays Investment Grade Floating Rate ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund pays 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&amp;#8217;s performance. During the period from the commencement of the Fund&amp;#8217;s operations (November 30, 2011) to the end of the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 5% of the average value of its portfolio. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskReturnHeading contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;SPDR S&amp;amp;P Commercial Paper Ex-Financials ETF &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund pays 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;"Other Expenses" are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;"Other Expenses" are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;"Other Expenses" are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006988_MemberC000019041_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006988_MemberC000019041_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 15.57% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -22.14% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 28.61% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -28.41% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 16.35% (Q2 2009)&lt;br/&gt;Lowest Quarterly Return: -23.11% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 22.24% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -27.02% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006983_MemberC000019036_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006983_MemberC000019036_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberDowJonesUsLargeCapTotalStockMarketIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 23.46% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -24.41% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006986_MemberC000019039_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006986_MemberC000019039_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund shares.	&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 22.89% (Q3 2009)&lt;br/&gt;Lowest Quarterly Return: -25.80% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 25.67% (Q3 2009)&lt;br/&gt;Lowest Quarterly Return: -25.28% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 16.30% (Q2 2009)&lt;br/&gt;Lowest Quarterly Return: -22.49% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006987_MemberC000019040_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006987_MemberC000019040_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006977_MemberC000019030_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006977_MemberC000019030_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberSAndPBanksSelectIndustryIndex_Member">2011-09-12</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006978_MemberC000019031_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006978_MemberC000019031_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberSAndPCapitalMarketsSelectIndustryIndex_Member">2011-09-12</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 1.22em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 35.38% (Q3 2009)&lt;/font&gt;&lt;/font&gt;&lt;br/&gt;&lt;font style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 1.22em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -39.70% (Q4 2008)&lt;/font&gt;&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 18.25% (Q2 2003)&lt;br/&gt;Lowest Quarterly Return: -21.13% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberSAndPMidCapFourHundredGrowthIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="USD">26</rr:ExpenseExampleYear01>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012325_MemberC000033541_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012325_MemberC000033541_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberSAndPRegionalBanksSelectIndustryIndex_Member">2011-09-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberGlobalDow_Member">2008-11-09</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006981_MemberC000019034_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006981_MemberC000019034_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ShareholderFeesCaption contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012331_MemberC000033547_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012327_MemberC000033543_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012328_MemberC000033544_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000025242_MemberC000075211_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;b&gt;&lt;/b&gt;&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012333_MemberC000033549_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012333_MemberC000033549_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006979_MemberC000019032_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006979_MemberC000019032_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberSAndPInsuranceSelectIndustryIndex_Member">2011-09-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberSAndPMetalsAndMiningSelectIndustryIndex_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000010018_MemberC000027706_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000010018_MemberC000027706_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012332_MemberC000033548_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012330_MemberC000033546_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ShareholderFeesCaption contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012319_MemberC000033535_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberSAndPOilAndGasExplorationAndProductionSelectIndustryIndex_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012319_MemberC000033535_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000010019_MemberC000027707_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000010019_MemberC000027707_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012322_MemberC000033538_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012322_MemberC000033538_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012329_MemberC000033545_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012324_MemberC000033540_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000010020_MemberC000027708_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000010020_MemberC000027708_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033831_MemberC000104492_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRegionalBankingSMETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012321_MemberC000033537_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012321_MemberC000033537_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRPharmaceuticalsETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006989_MemberC000019042_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006989_MemberC000019042_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSP600SmallCapETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012323_MemberC000033539_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRTelecomETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt; The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPR1500ValueTiltETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberSAndPMortgageFinanceSelectIndustryIndex_Member">2011-09-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member">2009-04-29</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012326_MemberC000033542_Member">2009-04-29</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012326_MemberC000033542_Member">2009-04-29</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012320_MemberC000033536_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPInsuranceETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPMortgageFinanceSMETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPROutsourcingandITConsultingETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012334_MemberC000033550_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012334_MemberC000033550_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033832_MemberC000104493_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPR1500MomentumTiltETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="USD">14</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017326_MemberC000047963_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017326_MemberC000047963_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberBarclaysOneToThreeMonthUsTreasuryBillIndex_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)Barclays1-3MonthT-BillETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033833_MemberC000104494_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="USD">19</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="USD">46</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="USD">14</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member">2009-09-16</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000026152_MemberC000078463_Member">2009-09-16</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000026152_MemberC000078463_Member">2009-09-16</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="USD">15</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member">2009-02-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000022923_MemberC000066454_Member">2009-02-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000022923_MemberC000066454_Member">2009-02-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberBarclaysUsIntermediateTermCorporateBondIndex_Member">2009-02-10</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysIntermediateTermCorporateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="USD">13</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member">2009-12-16</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000019666_MemberC000055010_Member">2009-12-16</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000019666_MemberC000055010_Member">2009-12-16</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019665_MemberC000055009_Member" unitRef="USD">12</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)WellsFargo(R)PreferredStockETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017330_MemberC000047967_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017330_MemberC000047967_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysShortTermCorporateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysShortTermTreasuryETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="USD">14</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;b&gt;&lt;/b&gt;&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017328_MemberC000047965_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017328_MemberC000047965_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberBarclaysIntermediateUsTreasuryIndex_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysLongTermTreasuryETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysIntermediateTermTreasuryETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017329_MemberC000047966_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017329_MemberC000047966_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="USD">15</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysLongTermCorporateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member">2009-03-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000022924_MemberC000066455_Member">2009-03-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000022924_MemberC000066455_Member">2009-03-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberBarclaysUsLongTermCorporateBondIndex_Member">2009-03-10</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000031836_MemberC000099139_Member" unitRef="USD">16</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysIssuerScoredCorporateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="USD">41</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysConvertibleSecuritiesETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member">2009-04-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000022925_MemberC000066456_Member">2009-04-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000022925_MemberC000066456_Member">2009-04-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberBarclaysUsConvertibleBondFiveHundredMmIndex_Member">2009-04-14</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="USD">33</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysMortgageBackedBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000022922_MemberC000066453_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000022922_MemberC000066453_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberBarclaysUsMbsIndex_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund is required to disclose &amp;#8220;Acquired Fund Fees and Expenses&amp;#8221; in the table above. Acquired Fund Fees and Expenses reflect the Fund&amp;#8217;s pro rata share of the fees and expenses incurred by investing in other investment companies, including affiliated investment companies. Since &amp;#8220;Total Annual Fund Operating Expenses&amp;#8221; for purposes of the table above includes Acquired Fund Fees and Expenses, it does not correlate to the ratio of &amp;#8220;Expenses to Average Net Assets&amp;#8221; in the &lt;i&gt;Financial Highlights &lt;/i&gt;section of the Prospectus. &lt;/font&gt;</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPRSemiconductorETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="USD">18</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017334_MemberC000047971_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017334_MemberC000047971_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberBarclaysUsAggregateIndex_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysAggregateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;The Fund is required to disclose &amp;#8220;Acquired Fund Fees and Expenses&amp;#8221; in the table above. Acquired Fund Fees and Expenses reflect the Fund&amp;#8217;s pro rata share of the fees and expenses incurred by investing in other investment companies, including affiliated investment companies. Since &amp;#8220;Total Annual Fund Operating Expenses&amp;#8221; for purposes of the table above includes Acquired Fund Fees and Expenses, it does not correlate to the &amp;#8220;Ratio of Expenses to Average Net Assets&amp;#8221; in the &lt;i&gt;Financial Highlights &lt;/i&gt;section of the Prospectus.&lt;/font&gt;</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberSAndPSemiconductorSelectIndustryIndex_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberKbwBankIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberKbwCapitalMarketsIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberKbwInsuranceIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberKbwMortgageFinanceIndex_Member">2009-04-29</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberDowJonesUsMidCapTotalStockMarketIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberSAndPMidCapFourHundredValueIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberSAndPSmallCapSixHundredIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberKbwRegionalBankingIndex_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberSAndPHighYieldDividendAristocratsIndex_Member">2005-11-08</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member">2007-10-02</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000018782_MemberC000051964_Member">2007-10-02</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000018782_MemberC000051964_Member">2007-10-02</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRBarclaysInternationalTreasuryBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000023655_MemberC000069669_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000023655_MemberC000069669_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberBarclaysOneToThreeYearGlobalTreasuryExUsCappedIndex_Member">2009-01-15</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysTIPSETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysShortTermInternationalTreasuryBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberBarclaysManagedMoneyMunicipalCaliforniaIndex_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017331_MemberC000047968_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017331_MemberC000047968_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberSAndPNationalAmtFreeMunicipalVrdoIndex_Member">2009-09-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000025944_MemberC000077952_Member">2009-09-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000025944_MemberC000077952_Member">2009-09-23</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member">2009-09-23</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)NuveenBarclaysCaliforniaMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberBarclaysUsGovernmentInflationLinkedBondIndex_Member">2007-05-25</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberBarclaysUsOneToThreeYearCorporateBondIndex_Member">2009-12-16</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028870_MemberC000088522_Member" unitRef="USD">46</rr:ExpenseExampleYear01>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberDbGlobalGovernmentExUsInflationLinkedBondCappedIndex_Member">2008-03-13</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000018783_MemberC000051965_Member">2008-03-13</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000018783_MemberC000051965_Member">2008-03-13</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member">2008-03-13</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)DBInternationalGovernmentInflation-ProtectedBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRNuveenSPHighYieldMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="USD">24</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member">2007-09-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017333_MemberC000047970_Member">2007-09-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017333_MemberC000047970_Member">2007-09-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberBarclaysMunicipalManagedMoneyIndex_Member">2007-09-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)NuveenBarclaysMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)NuveenBarclaysNewYorkMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRNuveenSPRVRDOMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member">2007-10-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017332_MemberC000047969_Member">2007-10-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017332_MemberC000047969_Member">2007-10-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberBarclaysManagedMoneyMunicipalNewYorkIndex_Member">2007-10-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPROilGasEquipmentServicesETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance for the most recent calendar year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt; The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member">2010-05-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000028874_MemberC000088526_Member">2010-05-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000028874_MemberC000088526_Member">2010-05-12</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberBarclaysBuildAmericaBondIndex_Member">2010-05-12</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="USD">20</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000017327_MemberC000047964_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000017327_MemberC000047964_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberBarclaysManagedMoneyMunicipalShortTermIndex_Member">2007-10-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)NuveenBarclaysBuildAmericaBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)NuveenBarclaysShortTermMunicipalBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund's performance from year to year and by showing how the Fund's average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="USD">56</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member">2010-05-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000028947_MemberC000088912_Member">2010-05-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000028947_MemberC000088912_Member">2010-05-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberBarclaysGlobalAggregateExUsOneBCorporateBondIndex_Member">2010-05-19</rr:AverageAnnualReturnInceptionDate>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing the Fund&amp;#8217;s performance for the most recent calendar year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDRRSPR1500VolatilityTiltETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysInternationalCorporateBondETF column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022631_MemberC000065485_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000036414_MemberC000111386_Member" unitRef="USD">41</rr:ExpenseExampleYear01>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualFundOperatingExpensesSPDR(R)BarclaysShortTermHighYieldBondETF column period compact * ~&lt;/div&gt;

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  <rr:OperatingExpensesCaption contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL FUND OPERATING EXPENSES&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment):&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member">2007-11-28</rr:AverageAnnualReturnInceptionDate>
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  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000019669_MemberC000055013_Member">2007-11-28</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberBarclaysHighYieldVeryLiquidIndex_Member">2007-11-28</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberSAndPPharmaceuticalsSelectIndustryIndex_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberSAndPBiotechnologySelectIndustryIndexs_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
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  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberSAndPHomebuildersSelectIndustryIndex_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberBarclaysLongUsTreasuryIndex_Member">2007-05-23</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberWellsFargoHybridAndPreferredSecuritiesAggregateIndex_Member">2009-09-16</rr:AverageAnnualReturnInceptionDate>
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  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="USD">36</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberSAndPRetailSelectIndustryIndex_Member">2006-06-19</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberBarclaysGlobalTreasuryExUsCappedIndex_Member">2007-10-02</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
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  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund&amp;#8217;s returns based on net assets and comparing the Fund&amp;#8217;s performance to the Index.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <dei:DocumentType contextRef="Duration_01Nov2011_31Oct2012">485BPOS</dei:DocumentType>
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  <dei:DocumentCreationDate contextRef="Duration_01Nov2011_31Oct2012">2012-10-26</dei:DocumentCreationDate>
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  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
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  <rr:AnnualReturn2002 id="Item_16" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">-0.1761</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 id="Item_17" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">-0.0066</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)DowJonesLargeCapETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_18" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">-0.026</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="USD">80</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006974_MemberC000019027_Member" unitRef="pure">0.0736</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006974_MemberC000019027_Member" unitRef="pure">0.0706</rr:AverageAnnualReturnYear10>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P MidCap 400 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberSAndPSmallCapSixHundredValueIndex_Member" unitRef="pure">0.0669</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.0824</rr:AverageAnnualReturnYear10>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:AnnualReturn2002 id="Item_19" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">-0.0272</rr:AnnualReturn2002>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 id="Item_20" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">-0.0153</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt;(for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)DowJonesMidCapETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt;(for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P 500 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.1557</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P 500 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.2861</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P MidCap 400 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.1635</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP400MidCapValueETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.2224</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.1825</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P 500 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/11)&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.2346</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.0312</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006973_MemberC000019026_Member" unitRef="pure">0.0281</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006973_MemberC000019026_Member" unitRef="pure">0.0262</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberDowJonesUsTotalStockMarketIndex_Member" unitRef="pure">0.0386</rr:AverageAnnualReturnYear10>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">2008-12-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP600SmallCapGrowthETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="USD">80</rr:ExpenseExampleYear03>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P MidCap 400 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">-0.0046</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006975_MemberC000019028_Member" unitRef="pure">-0.0084</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006975_MemberC000019028_Member" unitRef="pure">-0.0041</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_21" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberGlobalDow_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberDowJonesGlobalTitanFiftyIndexUsClose_Member" unitRef="pure">0.011</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 id="Item_22" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">-0.0107</rr:AnnualReturn2011>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.2567</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2002 id="Item_23" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">-0.2336</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 id="Item_24" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">-0.1158</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP400MidCapGrowthETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P 500 Value Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:AnnualReturn2011 id="Item_25" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.2216</rr:AnnualReturn2011>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P MidCap 400 Growth Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.163</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <dei:DocumentPeriodEndDate contextRef="Duration_01Nov2011_31Oct2012">2012-06-30</dei:DocumentPeriodEndDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_26" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">-0.2539</rr:AnnualReturn2011>
  <rr:AnnualReturn2002 id="Item_27" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">-0.2121</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 id="Item_28" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.0101</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to June 14, 2005, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the Dow Jones U.S. Total Stock Market Index. Performance of the Fund prior to June 14, 2005 is therefore based on the Fund&amp;#8217;s investment strategy to track the prior index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to June 14, 2005, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the Dow Jones U.S. Total Stock Market Index. Performance of the Fund prior to June 14, 2005 is therefore based on the Fund&amp;#8217;s investment strategy to track the prior index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP500GrowthETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP600SmallCapValueETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)DowJonesTotalMarketETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.3538</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.1594</rr:BarChartHighestQuarterlyReturn>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;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 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_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 15.94% (Q2 2009)&lt;br/&gt;Lowest Quarterly Return: -19.80% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective May 2, 2011, the Fund changed its benchmark index to The Global Dow from the Dow Jones Global Titans 50 Index U.S. Close. The Fund&amp;#8217;s performance prior to May 1, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt;(for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="USD">80</rr:ExpenseExampleYear03>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Effective May 2, 2011, the Fund changed its benchmark index to The Global Dow from the Dow Jones Global Titans 50 Index U.S. Close. The Fund&amp;#8217;s performance prior to May 1, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP500ValueETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2002 id="Item_29" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0326</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 id="Item_30" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0916</rr:AnnualReturn2011>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0992</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006976_MemberC000019029_Member" unitRef="pure">0.0834</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006976_MemberC000019029_Member" unitRef="pure">0.0805</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberDowJonesUsSelectReitIndex_Member" unitRef="pure">0.1012</rr:AverageAnnualReturnYear10>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPCapitalMarketsETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)GlobalDowETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">0.0169</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006980_MemberC000019033_Member" unitRef="pure">0.0165</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006980_MemberC000019033_Member" unitRef="pure">0.0145</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberMorganStanleyTechnologyIndex_Member" unitRef="pure">0.0217</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2011 id="Item_31" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0.0527</rr:AnnualReturn2011>
  <rr:AnnualReturn2011 id="Item_32" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="pure">-0.1217</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)DowJonesREITETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 30.43% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -35.84% (Q1 2009)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Banks Select Industry Index from the KBW Bank Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:AnnualReturn2002 id="Item_33" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">-0.4344</rr:AnnualReturn2002>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AnnualReturn2011 id="Item_34" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">-0.106</rr:AnnualReturn2011>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0.3043</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member">2009-03-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;b/&gt;&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRMorganStanleyTechnologyETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 17.28% (Q3 2009)&lt;br/&gt;Lowest Quarterly Return: -16.22% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;.&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="pure">0.1728</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 29.06% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -33.43% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Capital Markets Select Industry Index from the KBW Capital Markets Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK: &lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.2906</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006978_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Capital Markets Select Industry Index from the KBW Capital Markets Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPBankETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_35" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006981_MemberC000019034_Member" unitRef="pure">0.0725</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006981_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRDividendETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;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 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_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Insurance Select Industry Index from the KBW Insurance Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 36.67% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -28.64% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;EXAMPLE:&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012327_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Insurance Select Industry Index from the KBW Insurance Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012331_MemberC000033547_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012327_MemberC000033543_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member" unitRef="pure">0.3667</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006979_MemberC000019032_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012328_MemberC000033544_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000025242_MemberC000075211_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012318_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt;(for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 14.65% (Q3 2010)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -18.48% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt; &amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0.1465</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 27.51%  (Q2 2003)&lt;br/&gt;Lowest Quarterly Return: -28.23% (Q3 2002)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;NON-DIVERSIFICATION RISK:&lt;/font&gt;&lt;/b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006979_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPInsuranceETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_36" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member" unitRef="pure">-0.282</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;) other than brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000025242_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp; &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">0.2751</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member">2002-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006980_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012332_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012331_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012332_MemberC000033548_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:AnnualReturn2011 id="Item_37" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">-0.0564</rr:AnnualReturn2011>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 28.86% (Q4 2011)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -37.91% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012330_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;NON-DIVERSIFICATION RISK:&lt;/font&gt;&lt;/b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012330_MemberC000033546_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010018_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRBiotechETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_38" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="pure">0.0091</rr:AnnualReturn2011>
  <rr:AnnualReturn2011 id="Item_39" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="pure">0.0092</rr:AnnualReturn2011>
  <rr:AnnualReturn2011 id="Item_40" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="pure">-0.0089</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member" unitRef="pure">0.2886</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000010019_MemberC000027707_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 47.81% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -49.76% (Q3 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRMetalsMiningETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="pure">0.3052</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 30.52% (Q2 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -35.77% (Q3 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 34.92% (Q3 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -33.24% (Q1 2009)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Regional Banks Select Industry Index from the KBW Regional Banking Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&amp;nbsp;&amp;nbsp;&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Regional Banks Select Industry Index from the KBW Regional Banking Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 id="Item_41" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="pure">0.0968</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0.3492</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member">2009-03-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012329_MemberC000033545_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012324_MemberC000033540_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012319_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPROilGasExplorationProductionETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member" unitRef="pure">0.4781</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012333_MemberC000033549_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 id="Item_42" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="pure">-0.1824</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033831_MemberC000104492_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 23.68% (Q3 2009)&lt;br/&gt;Lowest Quarterly Return: -32.30% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt;(for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012329_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;NON-DIVERSIFICATION RISK:&lt;/font&gt;&lt;/b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member" unitRef="pure">0.2368</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012322_MemberC000033538_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012324_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012322_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRRetailETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;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 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_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010019_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRHomebuildersETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000033831_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 17.74% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -10.04% (Q1 2009)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="pure">0.1774</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member">2009-03-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 26.04% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -26.84% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:AnnualReturn2011 id="Item_43" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012321_MemberC000033537_Member" unitRef="pure">0.1275</rr:AnnualReturn2011>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012325_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRegionalBankingSMETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member" unitRef="pure">0.2604</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006989_MemberC000019042_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the total return performance of an index different from the S&amp;amp;P SmallCap 600 Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012321_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRPharmaceuticalsETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012323_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;NON-DIVERSIFICATION RISK:&lt;/font&gt;&lt;/b&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012323_MemberC000033539_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006989_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSP600SmallCapETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 19.45% (Q4 2011)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -26.77% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Effective October 24, 2011, the Fund has changed its benchmark index to the S&amp;amp;P Mortgage Finance Select Industry Index from the KBW Mortgage Finance Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt; Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_44" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="pure">-0.197</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member" unitRef="pure">0.1945</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012326_MemberC000033542_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000006977_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Effective October 24, 2011, the Fund changed its benchmark index to the S&amp;amp;P Banks Select Industry Index from the KBW Bank Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012320_MemberC000033536_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012320_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPMortgageFinanceSMETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 30.39% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -47.62% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="pure">0.3039</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 id="Item_45" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="pure">-0.0523</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012334_MemberC000033550_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000012326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Effective October 24, 2011, the Fund has changed its benchmark index to the S&amp;amp;P Mortgage Finance Select Industry Index from the KBW Mortgage Finance Index. The Fund&amp;#8217;s performance prior to October 24, 2011 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033832_MemberC000104493_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000033832_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 0.70% (Q1 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -0.03% (Q4 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="pure">0.007</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member">2011-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="USD">43</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_46" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017326_MemberC000047963_Member" unitRef="pure">-0.0005</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017326_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)Barclays1-3MonthT-BillETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000033833_MemberC000104494_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000033833_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="USD">59</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="USD">144</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="USD">43</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_47" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="pure">0.009</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="USD">48</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_48" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="pure">0.0519</rr:AnnualReturn2011>
  <rr:AnnualReturn2011 id="Item_49" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="pure">0.2974</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000019665_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="USD">40</rr:ExpenseExampleYear03>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysIntermediateTermCorporateBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_50" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="pure">0.0142</rr:AnnualReturn2011>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 10.56% (Q3 2010)&lt;br/&gt;Lowest Quarterly Return: -5.52% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member" unitRef="pure">0.2455</rr:BarChartHighestQuarterlyReturn>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017329_MemberC000047966_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member" unitRef="pure">0.1056</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000026152_MemberC000078463_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019665_MemberC000055009_Member" unitRef="USD">39</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_51" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="pure">0.1377</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="USD">43</rr:ExpenseExampleYear03>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000026152_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)WellsFargo(R)PreferredStockETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 24.55% (Q3 2011)&lt;br/&gt;Lowest Quarterly Return: -8.17% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS &lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 6.53% (Q4 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -2.16% (Q2 2009)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="pure">0.0653</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member">2009-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2011 id="Item_52" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017328_MemberC000047965_Member" unitRef="pure">0.0646</rr:AnnualReturn2011>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017329_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysLongTermTreasuryETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017328_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysIntermediateTermTreasuryETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 4.07% (Q3 2010)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -1.38% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member" unitRef="pure">0.0407</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000022923_MemberC000066454_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the price and yield performance of an index different from the Barclays U.S. Intermediate Term Corporate Bond Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the price and yield performance of an index different from the Barclays U.S. Intermediate Term Corporate Bond Index. Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index.&lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="USD">48</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_53" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="pure">0.1493</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysLongTermCorporateBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;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 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_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 8.89% (Q3 2011)&lt;br/&gt;Lowest Quarterly Return: -3.33% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the price and yield performance of an index different from the to Barclays U.S. Long Term Corporate Bond Index. &lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;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 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:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member" unitRef="pure">0.0889</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000022924_MemberC000066455_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableMarketIndexChanged contextRef="Duration_01Nov2011_31Oct2012S000022924_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Prior to December 17, 2010, the Fund&amp;#8217;s investment strategy sought to track the price and yield performance of an index different from the to Barclays U.S. Long Term Corporate Bond Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Performance of the Fund prior to December 17, 2010 is therefore based on the Fund&amp;#8217;s prior investment strategy to track a different benchmark index. &lt;/font&gt;</rr:PerformanceTableMarketIndexChanged>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000031836_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000031836_MemberC000099139_Member" unitRef="USD">52</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="USD">128</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_54" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="pure">-0.066</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysConvertibleSecuritiesETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 8.91% (Q3 2010)&lt;br/&gt;Lowest Quarterly Return: -13.25% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member" unitRef="pure">0.0891</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000022925_MemberC000066456_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000022925_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="USD">103</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_55" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="pure">0.0629</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysMortgageBackedBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 3.24% (Q2 2010)&lt;br/&gt;Lowest Quarterly Return: 0.36% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000022922_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member" unitRef="pure">0.0324</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000022922_MemberC000066453_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_56" decimals="6" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPRSemiconductorETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="USD">67</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_57" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="pure">0.0761</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysAggregateBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 5.90% (Q4 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -1.23% (Q2 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member" unitRef="pure">0.059</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017334_MemberC000047971_Member">2008-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017334_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 23.93% (Q2 2009)&lt;br/&gt;Lowest Quarterly Return: -31.08% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member" unitRef="pure">0.2393</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000010020_MemberC000027708_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000010020_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. &lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_58" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="pure">0.036</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 5.44% (Q1 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -3.56% (Q3 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:AnnualReturn2011 id="Item_59" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="pure">0.0029</rr:AnnualReturn2011>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_60" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="pure">0.0086</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member" unitRef="pure">0.0027</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000025944_MemberC000077952_Member">2010-03-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member" unitRef="pure">0.0544</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017330_MemberC000047967_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017330_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysTIPSETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_61" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="pure">0.1544</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysShortTermInternationalTreasuryBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 11.62% (Q3 2010)&lt;br/&gt;Lowest Quarterly Return: -5.05% (Q3 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member" unitRef="pure">0.1162</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000018782_MemberC000051964_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)NuveenBarclaysCaliforniaMunicipalBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018782_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRBarclaysInternationalTreasuryBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 12.86% (Q3 2010)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -6.00% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_62" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028870_MemberC000088522_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028870_MemberC000088522_Member" unitRef="USD">155</rr:ExpenseExampleYear03>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019666_MemberC000055010_Member" unitRef="pure">0.0186</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 1.86% (Q3 2010)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -0.56% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019666_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysShortTermCorporateBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return: 0.27% (Q3 2011)&lt;br/&gt;Lowest Quarterly Return: 0.02% (Q1 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:AnnualReturn2011 id="Item_63" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="pure">0.0249</rr:AnnualReturn2011>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member" unitRef="pure">0.1286</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000018783_MemberC000051965_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028870_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000018783_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)DBInternationalGovernmentInflation-ProtectedBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_64" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="pure">0.1145</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_65" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="pure">-0.0007</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="USD">89</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund ("Shares"). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund's Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 7.51% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -5.50% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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'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_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 10.08% (Q3 2009)&lt;br/&gt;Lowest Quarterly Return: -7.87% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/11)&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017332_MemberC000047969_Member" unitRef="pure">0.0751</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017331_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member" unitRef="pure">0.1008</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017331_MemberC000047968_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2011 id="Item_66" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="pure">0.1187</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)NuveenBarclaysMunicipalBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017332_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)NuveenBarclaysNewYorkMunicipalBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000012334_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRSPROilGasEquipmentServicesETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 2.84% (Q4 2008)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -0.95% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="pure">0.0284</rr:BarChartHighestQuarterlyReturn>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 1.22em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 14.39% (Q3 2011)&lt;/font&gt;&lt;/p&gt;&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 1.22em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: 0.73% (Q4 2011)&lt;/font&gt;&lt;/p&gt;</rr:BarChartClosingTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 6.75% (Q3 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -5.25% (Q4 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;/blockquote&gt;&lt;/blockquote&gt; &lt;blockquote&gt;&lt;blockquote&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="pure">0.1439</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member">2011-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000017333_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member" unitRef="pure">0.0675</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000017333_MemberC000047970_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_67" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028874_MemberC000088526_Member" unitRef="pure">0.2612</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="USD">64</rr:ExpenseExampleYear03>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000025944_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDRRNuveenSPRVRDOMunicipalBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2011 id="Item_68" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000017327_MemberC000047964_Member" unitRef="pure">0.035</rr:AnnualReturn2011>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028874_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)NuveenBarclaysBuildAmericaBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 9.52% (Q3 2010)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -4.93% (Q2 2010)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund's performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member" unitRef="pure">0.0952</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000023655_MemberC000069669_Member">2010-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000017327_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)NuveenBarclaysShortTermMunicipalBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="USD">176</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_69" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="pure">0.0044</rr:AnnualReturn2011>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 4.76% (Q1 2011)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -6.36% (Q3 2011)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS&lt;/b&gt; (for periods ending 12/31/11)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member" unitRef="pure">0.0476</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000028947_MemberC000088912_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000022631_MemberC000065485_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000028947_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysInternationalCorporateBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000036414_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000036414_MemberC000111386_Member" unitRef="USD">128</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000022631_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000034874_MemberC000107256_Member" unitRef="USD">48</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member" unitRef="USD">128</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_70" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member" unitRef="pure">0.047</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000036937_MemberC000113017_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029039_MemberC000089158_Member" unitRef="USD" />
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000036937_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029040_MemberC000089159_Member" unitRef="USD" />
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000036938_MemberC000113018_Member" unitRef="USD">97</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029040_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE &lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return: 22.44% (Q2 2009)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return: -18.59% (Q4 2008)&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;AVERAGE ANNUAL TOTAL RETURNS (for periods ending 12/31/11)&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The returns after taxes can exceed the return before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund Shares. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;	As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold Shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member" unitRef="pure">0.2244</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000019669_MemberC000055013_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029039_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:BarChartTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000019669_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAnnualTotalReturnsSPDR(R)BarclaysHighYieldBondETFBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000036938_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029041_MemberC000089160_Member" unitRef="USD" />
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE &lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029042_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029041_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000023411_Member">&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;i&gt;Non-Diversification Risk:&lt;/i&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029042_MemberC000089161_Member" unitRef="USD" />
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000033937_Member">&lt;blockquote&gt;&lt;blockquote&gt; &lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Non-Diversification Risk: &lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029043_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000033937_MemberC000104649_Member" unitRef="USD" />
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000023411_MemberC000068635_Member" unitRef="USD" />
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029043_MemberC000089162_Member" unitRef="USD" />
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000023655_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029037_MemberC000089156_Member" unitRef="USD" />
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029037_Member">&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000036080_Member">&lt;blockquote&gt;&lt;blockquote&gt; &lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK: &lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000036080_MemberC000110422_Member" unitRef="USD" />
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000029038_MemberC000089157_Member" unitRef="USD" />
  <rr:ExpenseExampleYear03 xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000036079_MemberC000110421_Member" unitRef="USD" />
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000022923_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;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 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:ExpenseExampleByYearHeading>
  <rr:StrategyHeading contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000034874_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000029038_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Non-Diversification Risk: &lt;/i&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:ObjectiveHeading contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;INVESTMENT OBJECTIVE&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (&amp;#8220;Shares&amp;#8221;). This table and the example below do not reflect brokerage commissions you may pay on purchases and sales of the Fund&amp;#8217;s Shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;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 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_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;THE FUND&amp;#8217;S PRINCIPAL INVESTMENT STRATEGY &lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskLoseMoney contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000012319_MemberC000033535_Member" unitRef="USD">113</rr:ExpenseExampleYear03>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_71" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000036938_MemberC000113018_Member" unitRef="pure">-0.001</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:RiskNondiversifiedStatus contextRef="Duration_01Nov2011_31Oct2012S000036079_Member">&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNondiversifiedStatus>
  <rr:ProspectusDate contextRef="Duration_01Nov2011_31Oct2012">2012-10-31</rr:ProspectusDate>
  <dei:EntityCentralIndexKey contextRef="Duration_01Nov2011_31Oct2012">0001064642</dei:EntityCentralIndexKey>
  <dei:DocumentEffectiveDate contextRef="Duration_01Nov2011_31Oct2012">2012-10-31</dei:DocumentEffectiveDate>
  <dei:AmendmentFlag contextRef="Duration_01Nov2011_31Oct2012">false</dei:AmendmentFlag>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_72" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="USD">318</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2004 id="Item_73" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.1518</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_74" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.0873</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 id="Item_75" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.0789</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_76" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">-0.41</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_77" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.4684</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_78" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.3023</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member" unitRef="pure">0.0349</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006990_MemberC000019043_Member" unitRef="pure">0.0333</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006990_MemberC000019043_Member" unitRef="pure">0.0236</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberSAndPSmallCapSixHundredGrowthIndex_Member" unitRef="pure">0.0362</rr:AverageAnnualReturnYear01>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_79" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.002</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_80" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.002</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="USD">318</rr:ExpenseExampleYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_81" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.002</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_82" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">-0.0083</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006986_MemberC000019039_Member" unitRef="pure">-0.011</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006986_MemberC000019039_Member" unitRef="pure">-0.0035</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberDowJonesUsMidCapTotalStockMarketIndex_Member" unitRef="pure">-0.0067</rr:AverageAnnualReturnYear01>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.002</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.0522</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006986_MemberC000019039_Member" unitRef="pure">0.0469</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006986_MemberC000019039_Member" unitRef="pure">0.0432</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberDowJonesUsMidCapTotalStockMarketIndex_Member" unitRef="pure">0.0535</rr:AverageAnnualReturnSinceInception>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="USD">318</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="USD">255</rr:ExpenseExampleYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.002</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_83" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.002</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.016</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006983_MemberC000019036_Member" unitRef="pure">0.0128</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006983_MemberC000019036_Member" unitRef="pure">0.0137</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberDowJonesUsLargeCapTotalStockMarketIndex_Member" unitRef="pure">0.0171</rr:AverageAnnualReturnYear01>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="USD">255</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2007 id="Item_84" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.0559</rr:AnnualReturn2007>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">-0.026</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006988_MemberC000019041_Member" unitRef="pure">-0.0298</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006988_MemberC000019041_Member" unitRef="pure">-0.0148</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberSAndPMidCapFourHundredValueIndex_Member" unitRef="pure">-0.0243</rr:AverageAnnualReturnYear01>
  <rr:AnnualReturn2008 id="Item_85" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">-0.3873</rr:AnnualReturn2008>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.0283</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006983_MemberC000019036_Member" unitRef="pure">0.0245</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006983_MemberC000019036_Member" unitRef="pure">0.0233</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberDowJonesUsLargeCapTotalStockMarketIndex_Member" unitRef="pure">0.0291</rr:AverageAnnualReturnSinceInception>
  <rr:AnnualReturn2009 id="Item_86" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.442</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_87" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member" unitRef="pure">0.2501</rr:AnnualReturn2010>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="USD">255</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2004 id="Item_88" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.0492</rr:AnnualReturn2004>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.0315</rr:AverageAnnualReturnSinceInception>
  <rr:AnnualReturn2005 id="Item_89" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.031</rr:AnnualReturn2005>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006988_MemberC000019041_Member" unitRef="pure">0.0257</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006988_MemberC000019041_Member" unitRef="pure">0.0249</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberSAndPMidCapFourHundredValueIndex_Member" unitRef="pure">0.039</rr:AverageAnnualReturnSinceInception>
  <rr:AnnualReturn2007 id="Item_90" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.1077</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_91" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">-0.3748</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_92" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.371</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_93" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.1634</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">-0.0066</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006985_MemberC000019038_Member" unitRef="pure">-0.0102</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006985_MemberC000019038_Member" unitRef="pure">-0.0003</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberSAndPFiveHundredValueIndex_Member" unitRef="pure">-0.0048</rr:AverageAnnualReturnYear01>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund&amp;#8217;s Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member" unitRef="pure">0.0443</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006984_MemberC000019037_Member" unitRef="pure">0.0415</rr:AverageAnnualReturnYear01>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006986_MemberC000019039_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006984_MemberC000019037_Member" unitRef="pure">0.032</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberSAndPFiveHundredGrowthIndex_Member" unitRef="pure">0.0465</rr:AverageAnnualReturnYear01>
  <rr:AnnualReturn2007 id="Item_94" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.0621</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_95" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">-0.369</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_96" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.2689</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_97" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member" unitRef="pure">0.1584</rr:AnnualReturn2010>
  <rr:AnnualReturn2004 id="Item_98" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.1312</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_99" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.0548</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 id="Item_100" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.017</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_101" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">-0.3649</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_102" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.1717</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_103" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member" unitRef="pure">0.1539</rr:AnnualReturn2010>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDR(R)DowJonesLargeCapETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDR(R)DowJonesLargeCapETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AnnualReturn2007 id="Item_104" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">-0.0152</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_105" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">-0.3464</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_106" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.3164</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_107" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member" unitRef="pure">0.2169</rr:AnnualReturn2010>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_108" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="USD">318</rr:ExpenseExampleYear10>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 400 Mid Cap Value ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of medium capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;value&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006974_MemberC000019027_Member" unitRef="pure">-0.0085</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006974_MemberC000019027_Member" unitRef="pure">-0.018</rr:AverageAnnualReturnYear01>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 500 Value ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of large capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;value&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P 500 Value Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the large-capitalization value sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P 500 Index exhibiting the strongest value characteristics based on: (i) book value to price ratio; (ii) earnings to price ratio; and (iii) sales to price ratio. The selection universe for the S&amp;amp;P 500 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally of $4.0 billion or more at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 368 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;LARGE CAP RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;Returns on investments in stocks of large U.S. companies could trail the returns on investments in stocks of smaller and mid-sized companies. &lt;/font&gt;&lt;/blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;VALUE RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund employs a &amp;#8220;value&amp;#8221; style of investing that emphasizes undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on &amp;#8220;value&amp;#8221; equity securities are less than returns on other styles of investing or the overall stock market. &lt;/font&gt;&lt;/blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR Dow Jones Mid Cap ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of mid-capitalization exchange traded U.S. equity securities.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND &lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER: &lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the Dow Jones U.S. Mid-Cap Total Stock Market Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is a float-adjusted market capitalization weighted index that represents the mid-cap portion of the Dow Jones U.S. Total Stock Market Index (&amp;#8220;Total Stock Market Index&amp;#8221;). The Total Stock Market Index tracks all the U.S. common stocks regularly traded on the New York Stock Exchange, NYSE Amex and the NASDAQ Stock Market. The Index includes the components of the Total Stock Market Index ranked 501-1,000 by full market capitalization. The composition of the Index is assigned based on the semiannual review of the Total Stock Market Index. New issues are added to the Index on a monthly basis as new issues are added to the Total Stock Market Index and fall within the mid cap portion. An issue is removed as soon as prudently possible if it fails to meet the inclusion requirement of the Total Stock Market Index. Shares and float factors of the Index are updated on a quarterly basis. As of September 30, 2012, the Index was comprised of 502 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberSAndPSmallCapSixHundredValueIndex_Member" unitRef="pure">-0.0138</rr:AverageAnnualReturnYear01>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE &lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">-0.0153</rr:AverageAnnualReturnYear01>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN (years ended 12/31)	&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AnnualReturn2004 id="Item_109" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.1796</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_110" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.0589</rr:AnnualReturn2005>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AnnualReturn2007 id="Item_111" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">-0.0422</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_112" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">-0.3358</rr:AnnualReturn2008>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at&lt;br/&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:AnnualReturn2009 id="Item_113" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.3657</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_114" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member" unitRef="pure">0.2421</rr:AnnualReturn2010>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;MID CAP RISK:&lt;/b&gt; &amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Mid-sized companies may be more volatile and more likely than large-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of mid-size companies could trail the returns on investments in stocks of larger or smaller companies. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;VALUE RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund employs a &amp;#8220;value&amp;#8221; style of investing that emphasizes undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on &amp;#8220;value&amp;#8221; equity securities are less than returns on other styles of investing or the overall stock market. &lt;/font&gt;  &lt;/blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt; &lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR Dow Jones Large Cap ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of large capitalization exchange traded U.S. equity securities.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND &lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER: &lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the Dow Jones U.S. Large-Cap Total Stock Market Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is a float-adjusted market capitalization weighted index that represents the large-cap portion of the Dow Jones U.S. Total Stock Market Index (&amp;#8220;Total Stock Market Index&amp;#8221;). The Total Stock Market Index tracks all the U.S. common stocks regularly traded on the New York Stock Exchange, NYSE Amex and the NASDAQ Stock Market. The Index includes the components of the Total Stock Market Index ranked approximately 1-750 by full market capitalization. The composition of the Index is assigned based on the semiannual review of the Total Stock Market Index. New issues are added to the Index on a monthly basis as new issues are added to the Total Stock Market Index and fall within the large cap portion. An issue is removed as soon as prudently possible if it fails to meet the inclusion requirement of the Total Stock Market Index. Shares and float factors of the Index are updated on a quarterly basis. As of September 30, 2012, the Index was comprised of 749 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;LARGE CAP RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; Returns on investments in stocks of large U.S. companies could trail the returns on investments in stocks of smaller and mid-sized companies. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&lt;b&gt;FUND PERFORMANCE &lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt; (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDR(R)DowJonesMidCapETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 500 Growth ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of large capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;growth&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER: &lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P 500 Growth Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt; &lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the large-capitalization growth sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P 500 Index exhibiting the strongest growth characteristics based on: (i) sales growth; (ii) earnings change to price; and (iii) momentum. The selection universe for the S&amp;amp;P 500 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally of $4.0 billion or more at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 280 stocks. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;LARGE CAP RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;Returns on investments in stocks of large U.S. companies could trail the returns on investments in stocks of smaller and mid-sized companies. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;GROWTH RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund emphasizes a &amp;#8220;growth&amp;#8221; style of investing. The market values of growth stocks may be more volatile than other types of investments. The prices of growth stocks tend to reflect future expectations, and when those expectations change or are not met, share prices generally fall. The returns on &amp;#8220;growth&amp;#8221; securities may or may not move in tandem with the returns on other styles of investing or the overall stock market. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt; &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 600 Small Cap Growth ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of small capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;growth&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P SmallCap 600 Growth Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund).&lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the small-capitalization growth sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P SmallCap 600 Index exhibiting the strongest growth characteristics based on: (i) sales growth; (ii) earnings change to price; and (iii) momentum. The selection universe for the S&amp;amp;P SmallCap 600 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $300 million and $1.4 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 331 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;SMALL CAP RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;Small-sized companies may be more volatile and more likely than large- and mid-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of small companies could trail the returns on investments in stocks of larger companies. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;GROWTH RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund emphasizes a &amp;#8220;growth&amp;#8221; style of investing. The market values of growth stocks may be more volatile than other types of investments. The prices of growth stocks tend to reflect future expectations, and when those expectations change or are not met, share prices generally fall. The returns on &amp;#8220;growth&amp;#8221; securities may or may not move in tandem with the returns on other styles of investing or the overall stock market.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt; (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN &lt;/b&gt; (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006986_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;MID CAP RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Mid-sized companies may be more volatile and more likely than large-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of mid-size companies could trail the returns on investments in stocks of larger or smaller companies. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 400 Mid Cap Growth ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of medium capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;growth&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006983_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER: &lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P MidCap 400 Growth Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the mid-capitalization growth sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P MidCap 400 Index exhibiting the strongest growth characteristics based on: (i) sales growth; (ii) earnings change to price; and (iii) momentum. The selection universe for the S&amp;amp;P MidCap 400 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $1 billion and $4.4 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 236 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt; &lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;MID CAP RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; Mid-sized companies may be more volatile and more likely than large-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of mid-size companies could trail the returns on investments in stocks of larger or smaller companies. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;GROWTH RISK:&lt;/b&gt;&amp;nbsp;&amp;nbsp; &lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund emphasizes a &amp;#8220;growth&amp;#8221; style of investing. The market values of growth stocks may be more volatile than other types of investments. The prices of growth stocks tend to reflect future expectations, and when those expectations change or are not met, share prices generally fall. The returns on &amp;#8220;growth&amp;#8221; securities may or may not move in tandem with the returns on other styles of investing or the overall stock market. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund's Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006983_MemberC000019036_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund's Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006990_MemberC000019043_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt;  (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP400MidCapValueETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. &lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006984_MemberC000019037_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;Fund's Calendar Year-To-Date return	&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  &lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund&amp;#8217;s Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP400MidCapValueETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P MidCap 400 Value Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the mid-capitalization value sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P MidCap 400 Index exhibiting the strongest value characteristics based on: (i) book value to price ratio; (ii) earnings to price ratio; and (iii) sales to price ratio. The selection universe for the S&amp;amp;P MidCap 400 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $1 billion and $4.4 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 300 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund&amp;#8217;s Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006985_MemberC000019038_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_115" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_116" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.005</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="USD">628</rr:ExpenseExampleYear10>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP600SmallCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">-0.1158</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006975_MemberC000019028_Member" unitRef="pure">-0.1195</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006975_MemberC000019028_Member" unitRef="pure">-0.0711</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_117" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberGlobalDow_Member" unitRef="pure">-0.117</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberDowJonesGlobalTitanFiftyIndexUsClose_Member" unitRef="pure">0.007</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.0101</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006973_MemberC000019026_Member" unitRef="pure">0.0072</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006973_MemberC000019026_Member" unitRef="pure">0.01</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberDowJonesUsTotalStockMarketIndex_Member" unitRef="pure">0.0108</rr:AverageAnnualReturnYear01>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR S&amp;amp;P 600 Small Cap Value ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of small capitalization exchange traded U.S. equity securities exhibiting &amp;#8220;value&amp;#8221; characteristics.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006988_MemberC000019041_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund&amp;#8217;s Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;b/&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the S&amp;amp;P SmallCap 600 Value Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt; &lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index measures the performance of the small-capitalization value sector in the U.S. equity market. The Index consists of those stocks in the S&amp;amp;P SmallCap 600 Index exhibiting the strongest value characteristics based on: (i) book value to price ratio; (ii) earnings to price ratio; and (iii) sales to price ratio. The selection universe for the S&amp;amp;P SmallCap 600 Index includes all U.S. common equities listed on the NYSE, NASDAQ Global Select Market, NASDAQ Select Market and NASDAQ Capital Market with market capitalizations generally between $300 million and $1.4 billion at the time of inclusion. Capitalization ranges may be revised by the Index Provider (as defined below) at any time. To be included in the Index, a security should (i) have an annual dollar value traded to float adjusted market capitalization ratio of 1 or greater; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 50%; and (iv) have four consecutive quarters of positive as-reported earnings. The Index is market capitalization weighted and rebalanced annually on the third Friday of December. As of September 30, 2012, the Index was comprised of 455 stocks. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;br /&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;SMALL CAP RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Small-sized companies may be more volatile and more likely than large- and mid-capitalization companies to have relatively limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of small companies could trail the returns on investments in stocks of larger companies. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;VALUE RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund employs a &amp;#8220;value&amp;#8221; style of investing that emphasizes undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on &amp;#8220;value&amp;#8221; equity securities are less than returns on other styles of investing or the overall stock market. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="USD">318</rr:ExpenseExampleYear10>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="USD">255</rr:ExpenseExampleYear10>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN (years ended 12/31)&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006990_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP600SmallCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.002</rr:ManagementFeesOverAssets>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.002</rr:ExpensesOverAssets>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AnnualReturn2007 id="Item_118" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.1104</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_119" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">-0.4155</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_120" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.5537</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_121" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.267</rr:AnnualReturn2010>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">-0.0107</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006987_MemberC000019040_Member" unitRef="pure">-0.0121</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006987_MemberC000019040_Member" unitRef="pure">-0.0061</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberSAndPMidCapFourHundredGrowthIndex_Member" unitRef="pure">-0.0094</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberC000019040_Member" unitRef="pure">0.0645</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006987_MemberC000019040_Member" unitRef="pure">0.0619</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006987_MemberC000019040_Member" unitRef="pure">0.0551</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006987_MemberSAndPMidCapFourHundredGrowthIndex_Member" unitRef="pure">0.0583</rr:AverageAnnualReturnSinceInception>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006974_MemberC000019027_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund&amp;#8217;s Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:AnnualReturn2004 id="Item_122" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.0732</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_123" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.029</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 id="Item_124" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.0595</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_125" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">-0.3773</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_126" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.234</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_127" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member" unitRef="pure">0.0473</rr:AnnualReturn2010>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_128" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP400MidCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR Dow Jones Total Market ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks a broad universe of exchange traded U.S. equity securities.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND &lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006987_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP400MidCapGrowthETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the Dow Jones U.S. Total Stock Market Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund, generally expects the Fund to hold less than the total number of securities in the Index, but reserves the right to hold as many securities as it believes necessary to achieve the Fund&amp;#8217;s investment objective. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). &lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is designed to represent the performance of all U.S. equity securities with readily available price data. The Index tracks all the U.S. common stocks regularly traded on the New York Stock Exchange, NYSE Amex and the NASDAQ Stock Market. The Index is a float-adjusted market capitalization weighted index that reflects shares of securities actually available to investors in the marketplace. To be included in the Index, an issue generally must be all of the following: (i) a company&amp;#8217;s primary equity issue (common stock, REIT or limited partnership); and (ii) the security of a U.S. company. A semiannual composition review of the Index is announced and implemented in March and September. Shares and float factors of the Index are updated on a quarterly basis. Except to account for stock splits and reverse splits, shares and float factors will not be adjusted for bulletin board, NYSE Arca and pink sheet stocks until they are returned to exchange listings. Companies that are re-listed as of the close of trading on the second Friday of each month will have their shares and float adjustments made at the same time as the monthly index additions and deletions, after the close of trading on the third Friday of each month. As of September 30, 2012, the Index was comprised of 3,640 stocks. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND&lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;&amp;nbsp;&amp;nbsp;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt; (year ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:AnnualReturn2007 id="Item_129" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.2181</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_130" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.4739</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_131" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.0144</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_132" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">0.2293</rr:AnnualReturn2010>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;Fund's Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.2216</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006977_MemberC000019030_Member" unitRef="pure">-0.2239</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006977_MemberC000019030_Member" unitRef="pure">-0.1413</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_133" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberSAndPBanksSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberKbwBankIndex_Member" unitRef="pure">-0.2317</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006977_MemberC000019030_Member" unitRef="pure">-0.121</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006977_MemberC000019030_Member" unitRef="pure">-0.0923</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_134" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberSAndPBanksSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberKbwBankIndex_Member" unitRef="pure">-0.1174</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006977_MemberC000019030_Member" unitRef="pure">-0.1158</rr:AverageAnnualReturnSinceInception>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006988_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt;  (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_135" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_136" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDR(R)DowJonesTotalMarketETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpensesOverAssets id="Item_137" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:AnnualReturn2007 id="Item_138" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.0094</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_139" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">-0.6027</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_140" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.4094</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_141" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">0.063</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">-0.2539</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006978_MemberC000019031_Member" unitRef="pure">-0.258</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006978_MemberC000019031_Member" unitRef="pure">-0.1627</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_142" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberSAndPCapitalMarketsSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberKbwCapitalMarketsIndex_Member" unitRef="pure">-0.2541</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberC000019031_Member" unitRef="pure">-0.0816</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006978_MemberC000019031_Member" unitRef="pure">-0.0847</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006978_MemberC000019031_Member" unitRef="pure">-0.0661</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_143" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberSAndPCapitalMarketsSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006978_MemberKbwCapitalMarketsIndex_Member" unitRef="pure">-0.0794</rr:AverageAnnualReturnSinceInception>
  <rr:AnnualReturn2004 id="Item_144" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.1001</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_145" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.0691</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 id="Item_146" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.0544</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_147" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">-0.3679</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_148" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.2808</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_149" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006973_MemberC000019026_Member" unitRef="pure">0.1698</rr:AnnualReturn2010>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP600SmallCapValueETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006974_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP600SmallCapValueETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR Dow Jones REIT ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of publicly traded real estate investment trusts.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;In seeking to track the performance of the Dow Jones U.S. Select REIT Index (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is designed to provide a measure of real estate securities that serve as proxies for direct real estate investing, in part by excluding securities whose value is not always closely tied to the value of the underlying real estate. The reason for the exclusions is that factors other than real estate supply and demand, such as interest rates, influence the market value of these companies. The Index is a market capitalization weighted index of publicly traded real estate investment trusts (&amp;#8220;REITs&amp;#8221;) and is comprised of companies whose charters are the equity ownership and operation of commercial real estate and which operate under the REIT Act of 1960. To be included in the Index, a company must be both an equity owner and operator of commercial and/or residential real estate. Businesses excluded from the Index include: mortgage REITs, net-lease REITs, real estate finance companies, mortgage brokers and bankers, commercial and residential real estate brokers and real estate agents, home builders, large landowners and subdividers of unimproved land, hybrid REITs, and timber REITs, as well as companies that have more than 25% of their assets in direct mortgage investments. A company must have a minimum total market capitalization of at least $200 million at the time of its inclusion, and at least 75% of the company&amp;#8217;s total revenue must be derived from the ownership and operation of real estate assets. The liquidity of the company&amp;#8217;s stock must be commensurate with that of other institutionally held real estate securities. The Index is generally rebalanced quarterly, and returns are calculated on a buy and hold basis except as necessary to reflect the occasional occurrence of Index changes in the middle of the month. Each REIT in the Index is weighted by its float-adjusted market capitalization. That is, each security is weighted to reflect the attainable market performance of the security which reflects that portion of securities shares that are accessible to investors. The Index is priced daily and is a total return (price and income) benchmark. As of September 30, 2012, the Index was comprised of 85 REITs. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (the &amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund, the Adviser or the Sub-Adviser (as defined below). The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP500GrowthETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN &lt;/b&gt;(years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006984_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP500GrowthETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund. &lt;/font&gt;&lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;While the Sub-Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Sub-Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;REAL ESTATE SECTOR RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund will concentrate its investments in the real estate sector. Adverse economic, business or political developments affecting real estate could have a major effect on the value of the Fund&amp;#8217;s investments. Investing in real estate securities (which include REITs) may subject the Fund to risks associated with the direct ownership of real estate, such as decreases in real estate values, overbuilding, increased competition and other risks related to local or general economic conditions, increases in operating costs and property taxes, changes in zoning laws, casualty or condemnation losses, possible environmental liabilities, regulatory limitations on rent and fluctuations in rental income. Changes in interest rates may also affect the value of the Fund&amp;#8217;s investment in real estate securities. Certain real estate securities have a relatively small market capitalization, which may tend to increase the volatility of the market price of these securities. Real estate securities are dependent upon specialized management skills, have limited diversification and are, therefore, subject to risks inherent in operating and financing a limited number of projects. Real estate securities are also subject to heavy cash flow dependency and defaults by borrowers. In addition, a REIT could fail to qualify for favorable tax treatment under the Internal Revenue Code of 1986, as amended and could fail to maintain exemption from the registration requirements of the Investment Company Act of 1940, as amended. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt; &amp;nbsp;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities. &lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at &lt;u&gt;http://www.spdrs.com.&lt;/u&gt;&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN&lt;/b&gt; (years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006973_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDR(R)DowJonesTotalMarketETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006976_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund's Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_150" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Highest Quarterly Return:&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member">&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;Lowest Quarterly Return:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_01Nov2011_31Oct2012S000006975_MemberC000019028_Member">&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;Fund's Calendar Year-To-Date return&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;div style="MARGIN-LEFT: 1.14em"&gt;&lt;font style="FONT-FAMILY: ARIAL" size="2"&gt;The SPDR Global Dow ETF (the &amp;#8220;Fund&amp;#8221;) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of multinational blue-chip issuers.&lt;/font&gt;&lt;/div&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FEES AND EXPENSES OF THE FUND&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;PORTFOLIO TURNOVER:&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_151" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;In seeking to track the performance of The Global Dow (the &amp;#8220;Index&amp;#8221;), the Fund employs a replication strategy, which means that the Fund typically invests in substantially all of the securities represented in the Index in approximately the same proportions as the Index.&lt;br /&gt;&lt;br /&gt;Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. The Fund will provide shareholders with at least 60 days notice prior to any material change in this 80% investment policy. In addition, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by SSgA Funds Management, Inc. (&amp;#8220;SSgA FM&amp;#8221; or the &amp;#8220;Adviser&amp;#8221;), the investment adviser to the Fund). &lt;br /&gt;&lt;br /&gt;The Index is made up of 150 constituents from around the world selected by an Averages Committee comprised of the managing editor of the Wall Street Journal, the head of Dow Jones Indexes research and the head of CME Group research. The 150 companies are selected not just based on size and reputation, but also on their promise of future growth. The Index has been designed to cover both developed and emerging countries. The Index is equal weighted and will be reset to equal weights annually each September. As of September 30, 2012, the Index was comprised of 150 stocks. &lt;br /&gt;&lt;br /&gt;The Index is sponsored by S&amp;amp;P Dow Jones Indices LLC (&amp;#8220;Index Provider&amp;#8221;) which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0025</rr:ExpensesOverAssets>
  <rr:RiskHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;PRINCIPAL RISKS OF INVESTING IN THE FUND &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;As with all investments, there are certain risks of investing in the Fund, and you could lose money on an investment in the Fund.&lt;/font&gt;  &lt;blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;PASSIVE STRATEGY/INDEX RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold constituent securities of the Index regardless of the current or projected performance of a specific security or a particular industry or market sector. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund&amp;#8217;s return to be lower than if the Fund employed an active strategy.&lt;/font&gt; &lt;br /&gt;&lt;br /&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;INDEX TRACKING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;While the Adviser seeks to track the performance of the Index as closely as possible (&lt;i&gt;i.e., &lt;/i&gt;achieve a high degree of correlation with the Index), the Fund&amp;#8217;s return may not match or achieve a high degree of correlation with the return of the Index due to operating expenses, transaction costs, cash flows, regulatory requirements and operational inefficiencies. For example, the Adviser anticipates that it may take several business days for additions and deletions to the Index to be reflected in the portfolio composition of the Fund.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;FOREIGN SECURITIES RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in securities issued by entities based outside the U.S. pose distinct risks since political and economic events unique to a country or region will affect those markets and their issuers. Further, such entities and/or their securities may also be affected by currency controls; different accounting, auditing, financial reporting, and legal standards and practices; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. These risks may be heightened in connection with investments in developing or emerging countries.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;  &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt; &lt;b&gt;EMERGING MARKETS RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;Investment in emerging markets subjects the Fund to a greater risk of loss than investments in a developed market. This is due to, among other things, greater market volatility, lower trading volume, political and economic instability, high levels of inflation, deflation or currency devaluation, greater risk of market shut down, and more governmental limitations on foreign investment policy than those typically found in a developed market. In addition, the financial stability of issuers (including governments) in emerging market countries may be more precarious than in other countries. As a result, there will tend to be an increased risk of price volatility in a Fund&amp;#8217;s investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar. Settlement practices for transactions in foreign markets may differ from those in U.S. markets. Such differences include delays beyond periods customary in the United States and practices, such as delivery of securities prior to receipt of payment, which increase the likelihood of a &amp;#8220;failed settlement.&amp;#8221; Failed settlements can result in losses to the Fund. For these and other reasons, investments in emerging markets are often considered speculative.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;   &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;EQUITY INVESTING RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;An investment in the Fund involves risks similar to those of investing in any fund of equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;    &lt;font style="FONT-FAMILY: ARIAL" size="1"&gt;&lt;b&gt;NON-DIVERSIFICATION RISK:&lt;/b&gt;&lt;/font&gt;&amp;nbsp;&amp;nbsp;&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund is non-diversified and may invest a larger percentage of its assets in securities of a few issuers or a single issuer than that of a diversified fund. As a result, the Fund&amp;#8217;s performance may be disproportionately impacted by the performance of relatively few securities.&lt;/font&gt;&lt;/blockquote&gt;&lt;/blockquote&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;&lt;b&gt;FUND PERFORMANCE&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The following bar chart and table provide an indication of the risks of investing in the Fund by showing changes in the Fund&amp;#8217;s performance from year to year and by showing how the Fund&amp;#8217;s average annual returns for certain time periods compare with the average annual returns of the Index. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available online at&lt;br /&gt;&lt;u&gt;http://www.spdrs.com&lt;/u&gt;.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="1"&gt;&lt;b&gt;ANNUAL TOTAL RETURN &lt;/b&gt;(years ended 12/31)&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Nov2011_31Oct2012S000006975_Member">&lt;font style="FONT-FAMILY: Arial" size="2"&gt;The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">-0.0564</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012325_MemberC000033541_Member" unitRef="pure">-0.06</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012325_MemberC000033541_Member" unitRef="pure">-0.0343</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_152" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberSAndPRegionalBanksSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberKbwRegionalBankingIndex_Member" unitRef="pure">-0.0514</rr:AverageAnnualReturnYear01>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleExpenseExampleTransposedSPDRRSP500ValueETF column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberC000033541_Member" unitRef="pure">-0.0892</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000012325_MemberC000033541_Member" unitRef="pure">-0.0957</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000012325_MemberC000033541_Member" unitRef="pure">-0.075</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberKbwRegionalBankingIndex_Member" unitRef="pure">-0.0869</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_153" xsi:nil="true" contextRef="Duration_01Nov2011_31Oct2012S000012325_MemberSAndPRegionalBanksSelectIndustryIndex_Member" unitRef="pure" />
  <rr:AnnualReturn2004 id="Item_154" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.3271</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 id="Item_155" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.1363</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 id="Item_156" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">-0.1769</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 id="Item_157" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">-0.3894</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 id="Item_158" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.2852</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 id="Item_159" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.2783</rr:AnnualReturn2010>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Nov2011_31Oct2012S000006985_Member">&lt;div style="display:none"&gt;~ http://www.spdrs.com/role/ScheduleAverageAnnualTotalReturnsTransposedSPDRRSP500ValueETF column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberC000019029_Member" unitRef="pure">0.0916</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributions_MemberS000006976_MemberC000019029_Member" unitRef="pure">0.0794</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012AfterTaxesOnDistributionsAndSales_MemberS000006976_MemberC000019029_Member" unitRef="pure">0.0593</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006976_MemberDowJonesUsSelectReitIndex_Member" unitRef="pure">0.0937</rr:AverageAnnualReturnYear01>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_160" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000012318_MemberC000033534_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0.0035</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets id="Item_161" decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000010018_MemberC000027706_Member" unitRef="pure">0.0035</rr:ExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Nov2011_31Oct2012S000006980_MemberC000019033_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
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