3.21.4 html 7 178 1 false 7 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.proofPlus.com/role/DocumentInformation Document and Entity Information 1 false false R2.htm 000001 - Document - Risk/Return Summary {Unlabeled} - Fidelity?? Real Estate High Income Fund Sheet http://www.proofPlus.com/role/SummaryS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Risk/Return Summary- Fidelity?? Real Estate High Income Fund 2 false false R3.htm 000002 - Schedule - Shareholder Fees {- Fidelity?? Real Estate High Income Fund} Sheet http://www.proofPlus.com/role/ShareholderFeesS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Shareholder Fees {- Fidelity?? Real Estate High Income Fund} 3 false false R4.htm 000003 - Schedule - Annual Operating Expenses {- Fidelity?? Real Estate High Income Fund} Sheet http://www.proofPlus.com/role/OperatingExpensesS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Annual Operating Expenses {- Fidelity?? Real Estate High Income Fund} 4 false false R5.htm 000004 - Schedule - Expense Example {- Fidelity?? Real Estate High Income Fund} Sheet http://www.proofPlus.com/role/ExpenseExampleS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Expense Example {- Fidelity?? Real Estate High Income Fund} 5 false false R6.htm 000006 - Schedule - Annual Total Returns - Fidelity?? Real Estate High Income Fund [BarChart] Sheet http://www.proofPlus.com/role/AnnualTotalReturnsBarChartS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Annual Total Returns - Fidelity?? Real Estate High Income Fund [BarChart] 6 false false R7.htm 000007 - Schedule - Average Annual Total Returns {Transposed} {- Fidelity?? Real Estate High Income Fund} Sheet http://www.proofPlus.com/role/AverageAnnualTotalReturnsS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Average Annual Total Returns{- Fidelity?? Real Estate High Income Fund} 7 false false R8.htm 000009 - Disclosure - Risk/Return Detail Data {Elements} - Fidelity?? Real Estate High Income Fund Sheet http://www.proofPlus.com/role/DisclosureDetailS000017688_D1130FidelityRealEstateHighIncomeFundPRO08 Risk/Return Detail Data- Fidelity?? Real Estate High Income Fund 8 false false R9.htm 040000 - Disclosure - Risk/Return Detail Data {Elements} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetailData Risk/Return Detail Data 9 false false All Reports Book All Reports filing723.htm cso-20220129.xsd cso-20220129_cal.xml cso-20220129_def.xml cso-20220129_lab.xml cso-20220129_pre.xml d22.htm d26.htm d30.htm exi.htm exj.htm fi_logo.jpg fipro_logo.jpg img769315672.jpg http://xbrl.sec.gov/dei/2020-01-31 http://xbrl.sec.gov/rr/2018-01-31 true true