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  <rr:PortfolioTurnoverTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 26% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;www.fidelity.com&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
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  <rr:RiskReturnHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="5"&gt;&lt;b&gt;Fund Summary&lt;/b&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;b&gt;Fund:&lt;/b&gt;&lt;br/&gt;&lt;b&gt;Fidelity&lt;sup&gt;&amp;#174;&lt;/sup&gt; Real Estate Investment Portfolio &lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;b&gt;Shareholder fees&lt;/b&gt;&lt;/font&gt;&lt;br/&gt;&lt;font size="-2"&gt;&lt;b&gt;(fees paid directly from your investment)&lt;/b&gt;&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;b&gt;Annual fund operating expenses&lt;/b&gt;&lt;/font&gt;&lt;br/&gt;&lt;font size="-2"&gt;&lt;b&gt;(expenses that you pay each year as a % of the value of your investment)&lt;/b&gt;&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceTableExplanationAfterTaxHigher contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt; Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.&lt;/font&gt;</rr:PerformanceTableExplanationAfterTaxHigher>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.1515</rr:BarChartYearToDateReturn>
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  <rr:StrategyHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Principal Investment Strategies&lt;/b&gt;&lt;/font&gt;</rr:StrategyHeading>
  <rr:PerformanceTableHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Average Annual Returns&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;The following table describes the fees and expenses that may be incurred when you buy, hold, or sell shares of the fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;This &lt;b&gt;example&lt;/b&gt; helps compare the cost of investing in the fund with the cost of investing in other mutual funds.&lt;br/&gt;&lt;br/&gt; Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;For the periods ended&lt;br/&gt;December 31, 2011&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;In addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.&lt;/font&gt;</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt; The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.4103</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartClosingTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;div style="font-face: times new roman; font-size:10pt" &gt;&lt;table style="font-size:10pt" cellpadding="0" cellspacing="2" border="1" width="100%"&gt;&lt;tr&gt;&lt;td width="60%"&gt;&lt;i&gt;During the periods shown in the chart:&lt;/i&gt;&lt;/td&gt;&lt;td width="10%" align="center"&gt;&lt;div style="font-size:8pt"&gt;&lt;i&gt;Returns&lt;/i&gt;&lt;/div&gt;&lt;/td&gt;&lt;td width="30%" align="center"&gt;&lt;div style="font-size:8pt"&gt;&lt;i&gt;Quarter ended&lt;/i&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;&lt;i&gt;Highest Quarter Return&lt;/i&gt;&lt;/td&gt;&lt;td align="right"&gt;&lt;i&gt;41.03%&lt;/i&gt;&lt;/td&gt;&lt;td&gt;&lt;i&gt;September 30, 2009&lt;/i&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;&lt;i&gt;Lowest Quarter Return&lt;/i&gt;&lt;/td&gt;&lt;td align="right"&gt;&lt;i&gt;-37.43%&lt;/i&gt;&lt;/td&gt;&lt;td&gt;&lt;i&gt;December 31, 2008&lt;/i&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td&gt;&lt;i&gt;Year-to-Date Return&lt;/i&gt;&lt;/td&gt;&lt;td align="right"&gt;&lt;i&gt;15.15%&lt;/i&gt;&lt;/td&gt;&lt;td&gt;&lt;i&gt;June 30, 2012&lt;/i&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</rr:BarChartClosingTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="USD">268</rr:ExpenseExampleYear03>
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  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.0829</rr:AnnualReturn2011>
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  <rr:ObjectiveHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Investment Objective&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Fee Table&lt;/b&gt;&lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Portfolio Turnover&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:BarChartHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Year-by-Year Returns&lt;/b&gt;&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Calendar Years&lt;/font&gt;</rr:BarChartHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;ul&gt;&lt;li&gt;&lt;font style="font-family: Times New Roman" size="3"&gt;Normally investing primarily in common stocks. &lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="font-family: Times New Roman" size="3"&gt;Normally investing at least 80% of assets in securities of companies principally engaged in the real estate industry and other real estate related investments.&lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="font-family: Times New Roman" size="3"&gt;Investing in domestic and foreign issuers.&lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="font-family: Times New Roman" size="3"&gt;Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments.&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;ul&gt;&lt;li&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;i&gt;Stock Market Volatility.&lt;/i&gt; Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market can react differently to these developments.&lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;i&gt;Foreign Exposure.&lt;/i&gt; Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.&lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;i&gt;Real Estate Industry Concentration.&lt;/i&gt; Changes in real estate values or economic downturns can have a significant negative effect on issuers in the real estate industry.&lt;/font&gt;&lt;/li&gt;&lt;li&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;&lt;i&gt;Issuer-Specific Changes.&lt;/i&gt; The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;In addition, the fund is considered non-diversified and can invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. &lt;br/&gt;&lt;br/&gt;An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. You could lose money by investing in the fund.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt; You could lose money by investing in the fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt; After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;i&gt;Lowest Quarter Return&lt;/i&gt;&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.0084</rr:ExpensesOverAssets>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.1487</rr:AnnualReturn2005>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">-0.3821</rr:AnnualReturn2008>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_MemberBeforeTaxes_Member" unitRef="pure">0.0829</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributions_MemberS000006069_MemberC000016687_Member" unitRef="pure">0.0817</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributionsAndSales_MemberS000006069_MemberC000016687_Member" unitRef="pure">0.0553</rr:AverageAnnualReturnYear01>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberDowJonesUSSelectRealEstateSecuritiesIndex_Member" unitRef="pure">0.0887</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_MemberBeforeTaxes_Member" unitRef="pure">0.1016</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributions_MemberS000006069_MemberC000016687_Member" unitRef="pure">0.0891</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributionsAndSales_MemberS000006069_MemberC000016687_Member" unitRef="pure">0.0856</rr:AverageAnnualReturnYear10>
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  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberDowJonesUSSelectRealEstateSecuritiesIndex_Member" unitRef="pure">0.1011</rr:AverageAnnualReturnYear10>
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</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_MemberBeforeTaxes_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Return Before Taxes&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributions_MemberS000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Return After Taxes on Distributions&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributionsAndSales_MemberS000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Return After Taxes on Distributions and Sale of Fund Shares&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnLabel>
  <rr:AverageAnnualReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberSAndPFiveHundredIndex_Member">S&amp;P 500&lt;sup&gt;&amp;#174;&lt;/sup&gt; Index</rr:AverageAnnualReturnLabel>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Performance&lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:RiskHeading contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="4"&gt;&lt;b&gt;Principal Investment Risks&lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;The fund seeks above-average income and long-term capital growth, consistent with reasonable investment risk. The fund seeks to provide a yield that exceeds the composite yield of the S&amp;amp;P 500&lt;sup&gt;&amp;#174;&lt;/sup&gt; Index.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the Additional Information about the Indexes section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;Visit www.fidelity.com for updated return information.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_Member" unitRef="pure">0.26</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt;An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="3"&gt; Past performance (before and after taxes) is not an indication of future performance.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:YearToDateReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;i&gt;Year-to-Date Return&lt;/i&gt;&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;i&gt;Highest Quarter Return&lt;/i&gt;&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">-0.3743</rr:BarChartLowestQuarterlyReturn>
  <rr:StrategyPortfolioConcentration contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;ul&gt;&lt;li&gt;&lt;font style="font-family: Times New Roman" size="3"&gt;Normally investing at least 80% of assets in securities of companies principally engaged in the real estate industry and other real estate related investments.&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;</rr:StrategyPortfolioConcentration>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">-0.0075</rr:RedemptionFeeOverRedemption>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.0056</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.0028</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="USD">1037</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.3415</rr:AnnualReturn2004>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.3284</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">-0.2134</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.3289</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_Member" unitRef="pure">0.2985</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_MemberBeforeTaxes_Member" unitRef="pure">-0.0191</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributions_MemberS000006069_MemberC000016687_Member" unitRef="pure">-0.0257</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributionsAndSales_MemberS000006069_MemberC000016687_Member" unitRef="pure">-0.0183</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberDowJonesUSSelectRealEstateSecuritiesIndex_Member" unitRef="pure">-0.0222</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_30Sep2011_29Sep2012S000006069_Member">&lt;div style="display:none"&gt;~ http://www.fidelity.com/role/ScheduleExpenseExampleFidelityRealEstateInvestmentPortfolio column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberC000016687_MemberBeforeTaxes_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Fidelity Real Estate Investment Portfolio&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnLabel contextRef="Duration_30Sep2011_29Sep2012S000006069_MemberDowJonesUSSelectRealEstateSecuritiesIndex_Member">Dow Jones U.S. Select Real Estate Securities Index&lt;sup&gt;SM&lt;/sup&gt;</rr:AverageAnnualReturnLabel>
  <rr:ProspectusDate contextRef="Duration_30Sep2011_29Sep2012">2012-09-29</rr:ProspectusDate>
  <dei:DocumentEffectiveDate contextRef="Duration_30Sep2011_29Sep2012">2012-09-29</dei:DocumentEffectiveDate>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributionsAndSales_MemberS000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Fidelity Real Estate Investment Portfolio&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnColumnName>
  <rr:AverageAnnualReturnColumnName contextRef="Duration_30Sep2011_29Sep2012AfterTaxesOnDistributions_MemberS000006069_MemberC000016687_Member">&lt;font style="FONT-FAMILY: Times New Roman" &gt;&lt;b&gt;Fidelity Real Estate Investment Portfolio&lt;/b&gt;&lt;/font&gt;</rr:AverageAnnualReturnColumnName>
</xbrl>
