Fidelity Advisor Biotechnology Fund (FBTTX) N-CSR 20 Sep 24 Certified annual shareholder report (management investment company) Financial data

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
	Jul. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Fidelity Advisor Series VII
Entity Central Index Key	0000315700
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended
	Jul. 31, 2024 USD ($) shares
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Fidelity Advisor Series VII
Entity Central Index Key	0000315700
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024
Fidelity Advisor Global Real Estate Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Global Real Estate Fund
Class Name	Fidelity Advisor® Global Real Estate Fund Class I
Trading Symbol	FWRIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Global Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.95 %
Expenses Paid, Amount	$ 99
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • ® EPRA SM /NAREIT ® Developed Index for the fiscal year. • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B26">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE August 11, 2016 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $9,920   $10,563   $11,466   $10,962   $14,341   $13,033   $12,040   $13,150   FTSE® EPRA℠/NAREIT® Developed Index   $10,000 $9,960   $10,524   $11,380   $9,855   $13,420   $12,176   $11,285   $12,184   MSCI ACWI (All Country World Index) Index   $10,000 $11,606   $12,928   $13,363   $14,382   $19,214   $17,256   $19,556   $22,962     2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class I 9.22% 2.78% 3.49% FTSE® EPRA℠/NAREIT® Developed Index 7.97% 1.38% 2.51% MSCI ACWI (All Country World Index) Index 17.42% 11.43% 10.99% A   From August 11, 2016   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 11, 2016
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,027,346
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 39,394
Investment Company Portfolio Turnover	32%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 32 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Residential REITs 19.8   Specialized REITs 19.1   Industrial REITs 18.3   Retail REITs 18.0   Real Estate Management & Development 11.9   Health Care REITs 7.1   Diversified REITs 2.8   Hotel & Resort REITs 1.3   Office REITs 0.6       Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets) United States 61.9 United Kingdom 8.3 Japan 8.2 Australia 4.9 Canada 3.7 Singapore 3.0 France 2.3 Sweden 1.9 Germany 1.8 Others 4.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.1     Equinix Inc 5.2     Public Storage Operating Co 3.9     Ventas Inc 3.6     Digital Realty Trust Inc 3.0     Kimco Realty Corp 2.8     Grainger PLC 2.6     NNN REIT Inc 2.5     UDR Inc 2.4     Welltower Inc 2.4       37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B41">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B42">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B43">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Consumer Discretionary Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Consumer Discretionary Fund
Class Name	Fidelity Advisor® Consumer Discretionary Fund Class Z
Trading Symbol	FIJZX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Consumer Discretionary Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.62 %
Expenses Paid, Amount	$ 66
Expense Ratio, Percent	0.62%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B60">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $10,336   $12,040   $16,643   $13,658   $15,377   $17,529   MSCI U.S. IMI Consumer Discretionary 25-50 Index   $10,000 $10,388   $12,652   $18,604   $16,041   $17,671   $19,618   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 13.99% 11.14% 10.10% MSCI U.S. IMI Consumer Discretionary 25-50 Index 11.02% 13.56% 12.25% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 475,554,258
Holdings Count | shares	60
Advisory Fees Paid, Amount	$ 2,742,271
Investment Company Portfolio Turnover	25%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 60 Total Advisory Fee $ Portfolio Turnover 25 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Broadline Retail 25.9   Specialty Retail 23.6   Hotels, Restaurants & Leisure 18.7   Automobiles 12.5   Textiles, Apparel & Luxury Goods 8.0   Household Durables 5.7   Automobile Components 3.1   Consumer Staples Distribution & Retail 1.1   Building Products 0.8   Others 0.7       Common Stocks 100.1 ASSET ALLOCATION (% of Fund's net assets) Short-Term Investments and Net Other Assets (Liabilities) - (0.1)% United States 96.1 Canada 2.3 Brazil 0.7 France 0.3 United Kingdom 0.3 Switzerland 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Amazon.com Inc 23.9     Tesla Inc 10.8     Home Depot Inc/The 5.0     Lowe's Cos Inc 4.8     TJX Cos Inc/The 3.8     Hilton Worldwide Holdings Inc 3.2     Dick's Sporting Goods Inc 2.4     McDonald's Corp 2.4     Booking Holdings Inc 2.1     Aptiv PLC 2.1       60.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B75">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B76">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B77">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Real Estate Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Global Real Estate Fund
Class Name	Fidelity Advisor® Global Real Estate Fund Class M
Trading Symbol	FWRTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Global Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.45 %
Expenses Paid, Amount	$ 151
Expense Ratio, Percent	1.45%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • ® EPRA SM /NAREIT ® Developed Index for the fiscal year. • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B94">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE August 11, 2016 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $9,525   $10,087   $10,900   $10,369   $13,501   $12,216   $11,228   $12,189   FTSE® EPRA℠/NAREIT® Developed Index   $10,000 $9,960   $10,524   $11,380   $9,855   $13,420   $12,176   $11,285   $12,184   MSCI ACWI (All Country World Index) Index   $10,000 $11,606   $12,928   $13,363   $14,382   $19,214   $17,256   $19,556   $22,962     2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class M (incl. 3.50% sales charge)   4.76% 1.53% 2.51% Class M (without 3.50% sales charge) 8.56% 2.26% 2.97% FTSE® EPRA℠/NAREIT® Developed Index 7.97% 1.38% 2.51% MSCI ACWI (All Country World Index) Index 17.42% 11.43% 10.99% A   From August 11, 2016   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 11, 2016
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,027,346
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 39,394
Investment Company Portfolio Turnover	32%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 32 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Residential REITs 19.8   Specialized REITs 19.1   Industrial REITs 18.3   Retail REITs 18.0   Real Estate Management & Development 11.9   Health Care REITs 7.1   Diversified REITs 2.8   Hotel & Resort REITs 1.3   Office REITs 0.6       Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets) United States 61.9 United Kingdom 8.3 Japan 8.2 Australia 4.9 Canada 3.7 Singapore 3.0 France 2.3 Sweden 1.9 Germany 1.8 Others 4.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.1     Equinix Inc 5.2     Public Storage Operating Co 3.9     Ventas Inc 3.6     Digital Realty Trust Inc 3.0     Kimco Realty Corp 2.8     Grainger PLC 2.6     NNN REIT Inc 2.5     UDR Inc 2.4     Welltower Inc 2.4       37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B109">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B110">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B111">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Industrials Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Industrials Fund
Class Name	Fidelity Advisor® Industrials Fund Class I
Trading Symbol	FCLIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Industrials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.73 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.73%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B128">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $10,845   $11,423   $12,898   $15,001   $15,348   $14,379   $19,552   $18,076   $21,514   $27,315   MSCI U.S. IMI Industrials 25-50 Index   $10,000 $10,697   $11,622   $13,810   $15,836   $16,344   $15,397   $22,708   $21,070   $25,150   $29,881   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 26.97% 12.22% 10.57% MSCI U.S. IMI Industrials 25-50 Index 18.81% 12.83% 11.57% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 582,010,248
Holdings Count | shares	51
Advisory Fees Paid, Amount	$ 3,019,014
Investment Company Portfolio Turnover	29%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 29 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Aerospace & Defense 22.7   Machinery 20.2   Ground Transportation 13.1   Electrical Equipment 11.1   Building Products 10.2   Trading Companies & Distributors 5.6   Construction & Engineering 3.8   Air Freight & Logistics 3.6   Professional Services 3.2   Others 5.5       Common Stocks 99.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     General Electric Co 6.3     Union Pacific Corp 4.9     Ingersoll Rand Inc 4.9     Howmet Aerospace Inc 4.7     Boeing Co 4.2     Parker-Hannifin Corp 4.1     Trane Technologies PLC 3.9     TransDigm Group Inc 3.7     FedEx Corp 3.4     Eaton Corp PLC 3.3       43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B142">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B143">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B144">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Real Estate Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Real Estate Fund
Class Name	Fidelity Advisor® Real Estate Fund Class C
Trading Symbol	FHECX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.81 %
Expenses Paid, Amount	$ 189
Expense Ratio, Percent	1.81%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B161">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $10,885   $12,779   $11,970   $12,181   $13,244   $12,191   $15,770   $14,770   $13,041   $14,358   MSCI US IMI Real Estate 25/50 Linked Index   $10,000 $11,129   $13,457   $12,695   $13,185   $14,621   $12,238   $16,556   $15,854   $14,323   $15,860   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 8.30% 1.33% 3.68% Class C 9.30% 1.33% 3.68% MSCI US IMI Real Estate 25/50 Linked Index 10.73% 1.64% 4.72% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 237,005,518
Holdings Count | shares	35
Advisory Fees Paid, Amount	$ 1,374,363
Investment Company Portfolio Turnover	24%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 35 Total Advisory Fee $ Portfolio Turnover 24 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 37.6   Industrial REITs 16.2   Residential REITs 14.2   Retail REITs 10.8   Health Care REITs 9.1   Real Estate Management & Development 7.7   Hotel & Resort REITs 2.5   Office REITs 1.2       Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.6     Equinix Inc 7.8     Crown Castle Inc 7.5     CBRE Group Inc Class A 6.3     American Tower Corp 5.9     Ventas Inc 5.8     CubeSmart 5.4     Digital Realty Trust Inc 3.5     Welltower Inc 3.3     Mid-America Apartment Communities Inc 3.3       58.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B175">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B176">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B177">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Technology Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Technology Fund
Class Name	Fidelity Advisor® Technology Fund Class I
Trading Symbol	FATIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Technology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.70 %
Expenses Paid, Amount	$ 79
Expense Ratio, Percent	0.70%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B194">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $11,130   $12,048   $16,898   $21,249   $22,855   $34,104   $49,513   $41,313   $54,052   $68,871   MSCI U.S. IMI Information Technology 25-50 Index   $10,000 $11,306   $12,261   $15,808   $20,247   $23,485   $32,225   $45,360   $41,091   $50,982   $64,137   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 27.42% 24.68% 21.28% MSCI U.S. IMI Information Technology 25-50 Index 25.80% 22.25% 20.42% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,458,251,428
Holdings Count | shares	89
Advisory Fees Paid, Amount	$ 31,726,651
Investment Company Portfolio Turnover	34%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 89 Total Advisory Fee $ Portfolio Turnover 34 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 41.8   Technology Hardware, Storage & Peripherals 20.7   Software 20.6   IT Services 4.4   Communications Equipment 2.5   Ground Transportation 2.2   Broadline Retail 1.5   Hotels, Restaurants & Leisure 0.6   Entertainment 0.5   Others 0.9       Common Stocks 94.5 Preferred Stocks 1.2 Preferred Securities 0.0 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.2 China 4.5 Taiwan 2.0 Netherlands 1.2 Canada 1.0 India 0.1 Korea (South) 0.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 20.1     Apple Inc 19.2     Microsoft Corp 10.7     NXP Semiconductors NV 4.4     ON Semiconductor Corp 4.4     Marvell Technology Inc 3.9     Servicenow Inc 3.6     Okta Inc Class A 2.9     GlobalFoundries Inc 2.8     Cisco Systems Inc 2.5       74.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B208">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B209">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B210">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Financials Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Financials Fund
Class Name	Fidelity Advisor® Financials Fund Class C
Trading Symbol	FAFCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Financials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.77 %
Expenses Paid, Amount	$ 203
Expense Ratio, Percent	1.77%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B227">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $11,045   $10,285   $12,966   $14,429   $14,616   $12,308   $19,769   $18,952   $19,743   $25,701   MSCI U.S. IMI Financials 5% Capped Linked Index   $10,000 $11,434   $11,272   $14,794   $16,593   $17,130   $14,510   $22,803   $21,734   $22,906   $29,316   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 28.23% 11.62% 9.90% Class C 29.23% 11.62% 9.90% MSCI U.S. IMI Financials 5% Capped Linked Index 27.98% 11.35% 11.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 507,414,487
Holdings Count | shares	66
Advisory Fees Paid, Amount	$ 2,566,292
Investment Company Portfolio Turnover	44%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 66 Total Advisory Fee $ Portfolio Turnover 44 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Banks 35.0   Capital Markets 21.1   Financial Services 20.7   Insurance 18.5   Consumer Finance 3.7   Professional Services 1.0       Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.0 United Kingdom 3.7 Puerto Rico 2.1 Grand Cayman (UK Overseas Ter) 0.7 Mexico 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mastercard Inc Class A 10.1     Wells Fargo & Co 6.4     Bank of America Corp 5.1     Citigroup Inc 3.1     Chubb Ltd 2.6     M&T Bank Corp 2.6     Morgan Stanley 2.5     Apollo Global Management Inc 2.4     Reinsurance Group of America Inc 2.3     Popular Inc 2.1       39.2
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period. The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Name [Text Block]	The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B242">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B243">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B244">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Technology Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Technology Fund
Class Name	Fidelity Advisor® Technology Fund Class Z
Trading Symbol	FIKHX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Technology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.56 %
Expenses Paid, Amount	$ 63
Expense Ratio, Percent	0.56%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B261">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $10,288   $15,370   $22,342   $18,664   $24,449   $31,190   MSCI U.S. IMI Information Technology 25-50 Index   $10,000 $10,841   $14,876   $20,939   $18,969   $23,535   $29,607   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 27.57% 24.83% 21.53% MSCI U.S. IMI Information Technology 25-50 Index 25.80% 22.25% 20.45% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,458,251,428
Holdings Count | shares	89
Advisory Fees Paid, Amount	$ 31,726,651
Investment Company Portfolio Turnover	34%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 89 Total Advisory Fee $ Portfolio Turnover 34 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 41.8   Technology Hardware, Storage & Peripherals 20.7   Software 20.6   IT Services 4.4   Communications Equipment 2.5   Ground Transportation 2.2   Broadline Retail 1.5   Hotels, Restaurants & Leisure 0.6   Entertainment 0.5   Others 0.9       Common Stocks 94.5 Preferred Stocks 1.2 Preferred Securities 0.0 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.2 China 4.5 Taiwan 2.0 Netherlands 1.2 Canada 1.0 India 0.1 Korea (South) 0.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 20.1     Apple Inc 19.2     Microsoft Corp 10.7     NXP Semiconductors NV 4.4     ON Semiconductor Corp 4.4     Marvell Technology Inc 3.9     Servicenow Inc 3.6     Okta Inc Class A 2.9     GlobalFoundries Inc 2.8     Cisco Systems Inc 2.5       74.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B276">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B277">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B278">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Real Estate Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Real Estate Fund
Class Name	Fidelity Advisor® Real Estate Fund Class A
Trading Symbol	FHEAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.07 %
Expenses Paid, Amount	$ 112
Expense Ratio, Percent	1.07%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B295">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $10,340   $12,235   $11,546   $11,841   $12,980   $12,044   $15,703   $14,816   $13,082   $14,403   MSCI US IMI Real Estate 25/50 Linked Index   $10,000 $11,129   $13,457   $12,695   $13,185   $14,621   $12,238   $16,556   $15,854   $14,323   $15,860   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   3.76% 0.90% 3.72% Class A (without 5.75% sales charge) 10.10% 2.10% 4.33% MSCI US IMI Real Estate 25/50 Linked Index 10.73% 1.64% 4.72% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 237,005,518
Holdings Count | shares	35
Advisory Fees Paid, Amount	$ 1,374,363
Investment Company Portfolio Turnover	24%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 35 Total Advisory Fee $ Portfolio Turnover 24 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 37.6   Industrial REITs 16.2   Residential REITs 14.2   Retail REITs 10.8   Health Care REITs 9.1   Real Estate Management & Development 7.7   Hotel & Resort REITs 2.5   Office REITs 1.2       Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.6     Equinix Inc 7.8     Crown Castle Inc 7.5     CBRE Group Inc Class A 6.3     American Tower Corp 5.9     Ventas Inc 5.8     CubeSmart 5.4     Digital Realty Trust Inc 3.5     Welltower Inc 3.3     Mid-America Apartment Communities Inc 3.3       58.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B309">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B310">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B311">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Real Estate Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Global Real Estate Fund
Class Name	Fidelity Advisor® Global Real Estate Fund Class C
Trading Symbol	FWRCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Global Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.95 %
Expenses Paid, Amount	$ 202
Expense Ratio, Percent	1.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • ® EPRA SM /NAREIT ® Developed Index for the fiscal year. • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B328">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE August 11, 2016 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $9,823   $10,352   $11,130   $10,539   $13,647   $12,287   $11,239   $12,145   FTSE® EPRA℠/NAREIT® Developed Index   $10,000 $9,960   $10,524   $11,380   $9,855   $13,420   $12,176   $11,285   $12,184   MSCI ACWI (All Country World Index) Index   $10,000 $11,606   $12,928   $13,363   $14,382   $19,214   $17,256   $19,556   $22,962     2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 7.06% 1.76% 2.47% Class C 8.06% 1.76% 2.47% FTSE® EPRA℠/NAREIT® Developed Index 7.97% 1.38% 2.51% MSCI ACWI (All Country World Index) Index 17.42% 11.43% 10.99% A   From August 11, 2016   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 11, 2016
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,027,346
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 39,394
Investment Company Portfolio Turnover	32%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 32 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Residential REITs 19.8   Specialized REITs 19.1   Industrial REITs 18.3   Retail REITs 18.0   Real Estate Management & Development 11.9   Health Care REITs 7.1   Diversified REITs 2.8   Hotel & Resort REITs 1.3   Office REITs 0.6       Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets) United States 61.9 United Kingdom 8.3 Japan 8.2 Australia 4.9 Canada 3.7 Singapore 3.0 France 2.3 Sweden 1.9 Germany 1.8 Others 4.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.1     Equinix Inc 5.2     Public Storage Operating Co 3.9     Ventas Inc 3.6     Digital Realty Trust Inc 3.0     Kimco Realty Corp 2.8     Grainger PLC 2.6     NNN REIT Inc 2.5     UDR Inc 2.4     Welltower Inc 2.4       37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B343">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B344">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B345">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Biotechnology Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Biotechnology Fund
Class Name	Fidelity Advisor® Biotechnology Fund Class C
Trading Symbol	FBTCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Biotechnology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.72 %
Expenses Paid, Amount	$ 196
Expense Ratio, Percent	1.72%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B362">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $15,843   $11,239   $12,752   $14,392   $13,403   $17,299   $19,575   $15,750   $18,141   $23,441   MSCI U.S. IMI Biotechnology 25-50 Index   $10,000 $15,191   $12,163   $14,140   $15,791   $14,066   $18,593   $22,002   $19,500   $21,317   $27,056   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 27.15% 11.48% 8.89% Class C 28.15% 11.48% 8.89% MSCI U.S. IMI Biotechnology 25-50 Index 26.92% 13.98% 10.47% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,812,183,981
Holdings Count | shares	100
Advisory Fees Paid, Amount	$ 9,501,787
Investment Company Portfolio Turnover	73%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 100 Total Advisory Fee $ Portfolio Turnover 73 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 92.6   Pharmaceuticals 5.7   Financial Services 0.2   Health Care Technology 0.1       Common Stocks 96.8 Preferred Stocks 1.8 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 88.0 Netherlands 5.1 Denmark 3.5 Canada 1.3 Belgium 1.1 United Kingdom 1.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Abbvie Inc 18.3     Amgen Inc 9.4     Regeneron Pharmaceuticals Inc 7.0     Vertex Pharmaceuticals Inc 4.7     Alnylam Pharmaceuticals Inc 4.5     Argenx SE ADR 3.8     Ascendis Pharma A/S ADR 3.5     Vaxcyte Inc 2.6     Cytokinetics Inc 2.6     Viking Therapeutics Inc 2.3       58.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B376">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B377">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B378">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Financials Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Financials Fund
Class Name	Fidelity Advisor® Financials Fund Class M
Trading Symbol	FAFSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Financials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.27 %
Expenses Paid, Amount	$ 146
Expense Ratio, Percent	1.27%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B395">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $10,710   $10,021   $12,689   $14,192   $14,443   $12,222   $19,736   $19,019   $19,757   $25,665   MSCI U.S. IMI Financials 5% Capped Linked Index   $10,000 $11,434   $11,272   $14,794   $16,593   $17,130   $14,510   $22,803   $21,734   $22,906   $29,316   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   25.36% 11.39% 9.88% Class M (without 3.50% sales charge) 29.90% 12.19% 10.28% MSCI U.S. IMI Financials 5% Capped Linked Index 27.98% 11.35% 11.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 507,414,487
Holdings Count | shares	66
Advisory Fees Paid, Amount	$ 2,566,292
Investment Company Portfolio Turnover	44%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 66 Total Advisory Fee $ Portfolio Turnover 44 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Banks 35.0   Capital Markets 21.1   Financial Services 20.7   Insurance 18.5   Consumer Finance 3.7   Professional Services 1.0       Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.0 United Kingdom 3.7 Puerto Rico 2.1 Grand Cayman (UK Overseas Ter) 0.7 Mexico 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mastercard Inc Class A 10.1     Wells Fargo & Co 6.4     Bank of America Corp 5.1     Citigroup Inc 3.1     Chubb Ltd 2.6     M&T Bank Corp 2.6     Morgan Stanley 2.5     Apollo Global Management Inc 2.4     Reinsurance Group of America Inc 2.3     Popular Inc 2.1       39.2
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period. The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Name [Text Block]	The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B410">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B411">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B412">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Financials Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Financials Fund
Class Name	Fidelity Advisor® Financials Fund Class I
Trading Symbol	FFSIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Financials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.75 %
Expenses Paid, Amount	$ 86
Expense Ratio, Percent	0.75%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B429">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $11,161   $10,504   $13,377   $15,040   $15,395   $13,100   $21,263   $20,597   $21,518   $28,086   MSCI U.S. IMI Financials 5% Capped Linked Index   $10,000 $11,434   $11,272   $14,794   $16,593   $17,130   $14,510   $22,803   $21,734   $22,906   $29,316   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 30.52% 12.78% 10.88% MSCI U.S. IMI Financials 5% Capped Linked Index 27.98% 11.35% 11.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 507,414,487
Holdings Count | shares	66
Advisory Fees Paid, Amount	$ 2,566,292
Investment Company Portfolio Turnover	44%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 66 Total Advisory Fee $ Portfolio Turnover 44 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Banks 35.0   Capital Markets 21.1   Financial Services 20.7   Insurance 18.5   Consumer Finance 3.7   Professional Services 1.0       Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.0 United Kingdom 3.7 Puerto Rico 2.1 Grand Cayman (UK Overseas Ter) 0.7 Mexico 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mastercard Inc Class A 10.1     Wells Fargo & Co 6.4     Bank of America Corp 5.1     Citigroup Inc 3.1     Chubb Ltd 2.6     M&T Bank Corp 2.6     Morgan Stanley 2.5     Apollo Global Management Inc 2.4     Reinsurance Group of America Inc 2.3     Popular Inc 2.1       39.2
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period. The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Name [Text Block]	The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B444">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B445">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B446">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Energy Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Energy Fund
Class Name	Fidelity Advisor® Energy Fund Class M
Trading Symbol	FAGNX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Energy Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.24 %
Expenses Paid, Amount	$ 131
Expense Ratio, Percent	1.24%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B463">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $6,843   $6,910   $6,813   $8,431   $6,299   $3,801   $5,563   $9,494   $10,979   $12,202   MSCI U.S. IMI Energy 25-50 Index   $10,000 $7,208   $7,220   $7,200   $8,707   $7,019   $4,258   $6,393   $10,594   $12,299   $13,570   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   7.25% 13.33% 2.01% Class M (without 3.50% sales charge) 11.14% 14.14% 2.37% MSCI U.S. IMI Energy 25-50 Index 10.33% 14.09% 3.10% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,311,457,602
Holdings Count | shares	43
Advisory Fees Paid, Amount	$ 7,393,032
Investment Company Portfolio Turnover	31%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 43 Total Advisory Fee $ Portfolio Turnover 31 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 81.1   Energy Equipment & Services 16.3   Independent Power and Renewable Electricity Producers 1.4   Machinery 1.0       Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 82.6 Canada 13.4 United Kingdom 3.3 Norway 0.3 Cameroon 0.2 France 0.1 United Arab Emirates 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 24.8     Cenovus Energy Inc 6.2     Schlumberger NV 5.4     Chevron Corp 4.8     Marathon Petroleum Corp 4.8     Canadian Natural Resources Ltd 4.5     Valero Energy Corp 3.9     Cheniere Energy Inc 3.9     Occidental Petroleum Corp 3.8     Hess Corp 3.4       65.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B477">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B478">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B479">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Energy Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Energy Fund
Class Name	Fidelity Advisor® Energy Fund Class A
Trading Symbol	FANAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Energy Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.99 %
Expenses Paid, Amount	$ 105
Expense Ratio, Percent	0.99%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B496">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $6,699   $6,783   $6,705   $8,319   $6,234   $3,769   $5,532   $9,467   $10,976   $12,232   MSCI U.S. IMI Energy 25-50 Index   $10,000 $7,208   $7,220   $7,200   $8,707   $7,019   $4,258   $6,393   $10,594   $12,299   $13,570   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   5.03% 13.08% 2.03% Class A (without 5.75% sales charge) 11.44% 14.43% 2.64% MSCI U.S. IMI Energy 25-50 Index 10.33% 14.09% 3.10% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,311,457,602
Holdings Count | shares	43
Advisory Fees Paid, Amount	$ 7,393,032
Investment Company Portfolio Turnover	31%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 43 Total Advisory Fee $ Portfolio Turnover 31 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 81.1   Energy Equipment & Services 16.3   Independent Power and Renewable Electricity Producers 1.4   Machinery 1.0       Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 82.6 Canada 13.4 United Kingdom 3.3 Norway 0.3 Cameroon 0.2 France 0.1 United Arab Emirates 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 24.8     Cenovus Energy Inc 6.2     Schlumberger NV 5.4     Chevron Corp 4.8     Marathon Petroleum Corp 4.8     Canadian Natural Resources Ltd 4.5     Valero Energy Corp 3.9     Cheniere Energy Inc 3.9     Occidental Petroleum Corp 3.8     Hess Corp 3.4       65.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B510">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B511">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B512">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Financials Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Financials Fund
Class Name	Fidelity Advisor® Financials Fund Class A
Trading Symbol	FAFDX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Financials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.03 %
Expenses Paid, Amount	$ 118
Expense Ratio, Percent	1.03%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B529">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $10,489   $9,844   $12,499   $14,014   $14,301   $12,135   $19,639   $18,971   $19,762   $25,727   MSCI U.S. IMI Financials 5% Capped Linked Index   $10,000 $11,434   $11,272   $14,794   $16,593   $17,130   $14,510   $22,803   $21,734   $22,906   $29,316   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   22.69% 11.14% 9.91% Class A (without 5.75% sales charge) 30.18% 12.46% 10.56% MSCI U.S. IMI Financials 5% Capped Linked Index 27.98% 11.35% 11.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 507,414,487
Holdings Count | shares	66
Advisory Fees Paid, Amount	$ 2,566,292
Investment Company Portfolio Turnover	44%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 66 Total Advisory Fee $ Portfolio Turnover 44 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Banks 35.0   Capital Markets 21.1   Financial Services 20.7   Insurance 18.5   Consumer Finance 3.7   Professional Services 1.0       Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.0 United Kingdom 3.7 Puerto Rico 2.1 Grand Cayman (UK Overseas Ter) 0.7 Mexico 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mastercard Inc Class A 10.1     Wells Fargo & Co 6.4     Bank of America Corp 5.1     Citigroup Inc 3.1     Chubb Ltd 2.6     M&T Bank Corp 2.6     Morgan Stanley 2.5     Apollo Global Management Inc 2.4     Reinsurance Group of America Inc 2.3     Popular Inc 2.1       39.2
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period. The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Name [Text Block]	The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B544">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B545">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B546">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Semiconductors Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Semiconductors Fund
Class Name	Fidelity Advisor® Semiconductors Fund Class C
Trading Symbol	FELCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Semiconductors Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.71 %
Expenses Paid, Amount	$ 204
Expense Ratio, Percent	1.71%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B563">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $11,003   $13,147   $17,118   $21,634   $23,652   $30,685   $49,454   $47,513   $70,942   $98,975   MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index   $10,000 $10,481   $13,028   $17,291   $21,750   $23,948   $32,281   $51,070   $48,484   $72,407   $107,971   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 37.46% 32.74% 25.76% Class C 38.46% 32.74% 25.76% MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index 49.12% 35.15% 26.86% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 2,698,217,311
Holdings Count | shares	45
Advisory Fees Paid, Amount	$ 11,387,050
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 92.7   Technology Hardware, Storage & Peripherals 2.4   Electronic Equipment, Instruments & Components 0.1   Financial Services 0.0   Metals & Mining 0.0       Common Stocks 95.0 Preferred Stocks 0.2 Preferred Securities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.8 ASSET ALLOCATION (% of Fund's net assets) United States 79.9 Taiwan 7.1 China 5.6 Netherlands 5.0 Israel 1.7 Japan 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 25.8     ON Semiconductor Corp 7.3     Taiwan Semiconductor Manufacturing Co Ltd ADR 6.1     NXP Semiconductors NV 5.6     Micron Technology Inc 5.4     ASML Holding NV depository receipt 5.0     GlobalFoundries Inc 4.8     Lam Research Corp 4.8     Broadcom Inc 4.3     Advanced Micro Devices Inc 3.8       72.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B577">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B578">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B579">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Utilities Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Utilities Fund
Class Name	Fidelity Advisor® Utilities Fund Class I
Trading Symbol	FUGIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Utilities Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.73 %
Expenses Paid, Amount	$ 79
Expense Ratio, Percent	0.73%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B596">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $10,235   $11,648   $12,833   $14,133   $15,835   $15,628   $18,020   $21,444   $21,156   $24,715   MSCI U.S. IMI Utilities 25-50 Index   $10,000 $10,922   $13,519   $14,434   $15,013   $17,419   $17,988   $20,183   $23,242   $21,712   $24,456   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 16.82% 9.31% 9.47% MSCI U.S. IMI Utilities 25-50 Index 12.64% 7.02% 9.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 819,716,826
Holdings Count | shares	30
Advisory Fees Paid, Amount	$ 4,138,318
Investment Company Portfolio Turnover	84%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 30 Total Advisory Fee $ Portfolio Turnover 84 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Electric Utilities 63.0   Multi-Utilities 23.0   Independent Power and Renewable Electricity Producers 7.0   Gas Utilities 2.2   Oil, Gas & Consumable Fuels 0.2       Common Stocks 95.4 Short-Term Investments and Net Other Assets (Liabilities) 4.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Australia 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NextEra Energy Inc 12.7     Sempra 7.1     PG&E Corp 5.9     American Electric Power Co Inc 5.6     Edison International 5.4     Public Service Enterprise Group Inc 5.0     Eversource Energy 5.0     Constellation Energy Corp 5.0     Entergy Corp 4.8     FirstEnergy Corp 4.3       60.8
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B610">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B611">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B612">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Health Care Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Health Care Fund
Class Name	Fidelity Advisor® Health Care Fund Class C
Trading Symbol	FHCCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Health Care Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.70 %
Expenses Paid, Amount	$ 175
Expense Ratio, Percent	1.70%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B629">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $13,304   $11,907   $12,940   $15,384   $15,708   $19,413   $23,253   $20,332   $21,087   $22,496   MSCI U.S. IMI Health Care 25-50 Index   $10,000 $13,063   $12,726   $13,917   $16,068   $16,693   $19,997   $25,628   $24,807   $25,460   $28,709   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 4.90% 7.13% 8.45% Class C 5.90% 7.13% 8.45% MSCI U.S. IMI Health Care 25-50 Index 12.76% 11.45% 11.12% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 4,615,583,149
Holdings Count | shares	103
Advisory Fees Paid, Amount	$ 27,914,465
Investment Company Portfolio Turnover	37%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 103 Total Advisory Fee $ Portfolio Turnover 37 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 24.4   Health Care Equipment & Supplies 23.5   Health Care Providers & Services 21.8   Pharmaceuticals 16.6   Life Sciences Tools & Services 10.9   Health Care Technology 2.0   Financial Services 0.2       Common Stocks 97.9 Preferred Stocks 1.5 Preferred Securities 0.2 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.5 Netherlands 3.0 United Kingdom 1.7 Denmark 1.5 Belgium 1.3 Canada 0.9 Israel 0.1 China 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Boston Scientific Corp 9.6     Eli Lilly & Co 8.2     UnitedHealth Group Inc 7.8     Danaher Corp 6.4     Regeneron Pharmaceuticals Inc 4.4     Merck & Co Inc 3.9     Cigna Group/The 3.4     Penumbra Inc 3.1     Stryker Corp 2.4     Insulet Corp 2.2       51.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B643">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B644">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B645">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Industrials Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Industrials Fund
Class Name	Fidelity Advisor® Industrials Fund Class Z
Trading Symbol	FIKEX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Industrials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.61 %
Expenses Paid, Amount	$ 69
Expense Ratio, Percent	0.61%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B662">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $9,808   $9,199   $12,525   $11,596   $13,816   $17,564   MSCI U.S. IMI Industrials 25-50 Index   $10,000 $10,039   $9,457   $13,947   $12,942   $15,447   $18,353   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 27.12% 12.36% 10.14% MSCI U.S. IMI Industrials 25-50 Index 18.81% 12.83% 10.97% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 582,010,248
Holdings Count | shares	51
Advisory Fees Paid, Amount	$ 3,019,014
Investment Company Portfolio Turnover	29%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 29 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Aerospace & Defense 22.7   Machinery 20.2   Ground Transportation 13.1   Electrical Equipment 11.1   Building Products 10.2   Trading Companies & Distributors 5.6   Construction & Engineering 3.8   Air Freight & Logistics 3.6   Professional Services 3.2   Others 5.5       Common Stocks 99.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     General Electric Co 6.3     Union Pacific Corp 4.9     Ingersoll Rand Inc 4.9     Howmet Aerospace Inc 4.7     Boeing Co 4.2     Parker-Hannifin Corp 4.1     Trane Technologies PLC 3.9     TransDigm Group Inc 3.7     FedEx Corp 3.4     Eaton Corp PLC 3.3       43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B677">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B678">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B679">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Real Estate Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Global Real Estate Fund
Class Name	Fidelity Advisor® Global Real Estate Fund Class Z
Trading Symbol	FIKKX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Global Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.80 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.80%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • ® EPRA SM /NAREIT ® Developed Index for the fiscal year. • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B696">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $11,017   $10,544   $13,820   $12,587   $11,646   $12,734   FTSE® EPRA℠/NAREIT® Developed Index   $10,000 $11,066   $9,583   $13,050   $11,840   $10,973   $11,848   MSCI ACWI (All Country World Index) Index   $10,000 $10,222   $11,001   $14,698   $13,199   $14,959   $17,565     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 9.34% 2.94% 4.23% FTSE® EPRA℠/NAREIT® Developed Index 7.97% 1.38% 2.95% MSCI ACWI (All Country World Index) Index 17.42% 11.43% 10.14% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,027,346
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 39,394
Investment Company Portfolio Turnover	32%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 32 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Residential REITs 19.8   Specialized REITs 19.1   Industrial REITs 18.3   Retail REITs 18.0   Real Estate Management & Development 11.9   Health Care REITs 7.1   Diversified REITs 2.8   Hotel & Resort REITs 1.3   Office REITs 0.6       Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets) United States 61.9 United Kingdom 8.3 Japan 8.2 Australia 4.9 Canada 3.7 Singapore 3.0 France 2.3 Sweden 1.9 Germany 1.8 Others 4.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.1     Equinix Inc 5.2     Public Storage Operating Co 3.9     Ventas Inc 3.6     Digital Realty Trust Inc 3.0     Kimco Realty Corp 2.8     Grainger PLC 2.6     NNN REIT Inc 2.5     UDR Inc 2.4     Welltower Inc 2.4       37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B711">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B712">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B713">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Semiconductors Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Semiconductors Fund
Class Name	Fidelity Advisor® Semiconductors Fund Class I
Trading Symbol	FELIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Semiconductors Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.71 %
Expenses Paid, Amount	$ 86
Expense Ratio, Percent	0.71%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B730">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $11,117   $13,435   $17,683   $22,589   $24,951   $32,705   $53,262   $51,688   $77,383   $108,234   MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index   $10,000 $10,481   $13,028   $17,291   $21,750   $23,948   $32,281   $51,070   $48,484   $72,407   $107,971   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 39.87% 34.11% 26.89% MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index 49.12% 35.15% 26.86% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 2,698,217,311
Holdings Count | shares	45
Advisory Fees Paid, Amount	$ 11,387,050
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 92.7   Technology Hardware, Storage & Peripherals 2.4   Electronic Equipment, Instruments & Components 0.1   Financial Services 0.0   Metals & Mining 0.0       Common Stocks 95.0 Preferred Stocks 0.2 Preferred Securities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.8 ASSET ALLOCATION (% of Fund's net assets) United States 79.9 Taiwan 7.1 China 5.6 Netherlands 5.0 Israel 1.7 Japan 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 25.8     ON Semiconductor Corp 7.3     Taiwan Semiconductor Manufacturing Co Ltd ADR 6.1     NXP Semiconductors NV 5.6     Micron Technology Inc 5.4     ASML Holding NV depository receipt 5.0     GlobalFoundries Inc 4.8     Lam Research Corp 4.8     Broadcom Inc 4.3     Advanced Micro Devices Inc 3.8       72.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B744">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B745">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B746">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Biotechnology Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Biotechnology Fund
Class Name	Fidelity Advisor® Biotechnology Fund Class M
Trading Symbol	FBTTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Biotechnology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.24 %
Expenses Paid, Amount	$ 142
Expense Ratio, Percent	1.24%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B763">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $15,360   $10,944   $12,463   $14,127   $13,217   $17,135   $19,480   $15,745   $18,087   $23,308   MSCI U.S. IMI Biotechnology 25-50 Index   $10,000 $15,191   $12,163   $14,140   $15,791   $14,066   $18,593   $22,002   $19,500   $21,317   $27,056   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   24.36% 11.22% 8.83% Class M (without 3.50% sales charge) 28.87% 12.01% 9.22% MSCI U.S. IMI Biotechnology 25-50 Index 26.92% 13.98% 10.47% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,812,183,981
Holdings Count | shares	100
Advisory Fees Paid, Amount	$ 9,501,787
Investment Company Portfolio Turnover	73%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 100 Total Advisory Fee $ Portfolio Turnover 73 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 92.6   Pharmaceuticals 5.7   Financial Services 0.2   Health Care Technology 0.1       Common Stocks 96.8 Preferred Stocks 1.8 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 88.0 Netherlands 5.1 Denmark 3.5 Canada 1.3 Belgium 1.1 United Kingdom 1.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Abbvie Inc 18.3     Amgen Inc 9.4     Regeneron Pharmaceuticals Inc 7.0     Vertex Pharmaceuticals Inc 4.7     Alnylam Pharmaceuticals Inc 4.5     Argenx SE ADR 3.8     Ascendis Pharma A/S ADR 3.5     Vaxcyte Inc 2.6     Cytokinetics Inc 2.6     Viking Therapeutics Inc 2.3       58.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B777">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B778">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B779">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Health Care Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Health Care Fund
Class Name	Fidelity Advisor® Health Care Fund Class M
Trading Symbol	FACTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Health Care Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.22 %
Expenses Paid, Amount	$ 126
Expense Ratio, Percent	1.22%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B796">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $12,901   $11,604   $12,669   $15,135   $15,530   $19,287   $23,219   $20,405   $21,109   $22,466   MSCI U.S. IMI Health Care 25-50 Index   $10,000 $13,063   $12,726   $13,917   $16,068   $16,693   $19,997   $25,628   $24,807   $25,460   $28,709   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   2.71% 6.90% 8.43% Class M (without 3.50% sales charge) 6.43% 7.66% 8.82% MSCI U.S. IMI Health Care 25-50 Index 12.76% 11.45% 11.12% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 4,615,583,149
Holdings Count | shares	103
Advisory Fees Paid, Amount	$ 27,914,465
Investment Company Portfolio Turnover	37%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 103 Total Advisory Fee $ Portfolio Turnover 37 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 24.4   Health Care Equipment & Supplies 23.5   Health Care Providers & Services 21.8   Pharmaceuticals 16.6   Life Sciences Tools & Services 10.9   Health Care Technology 2.0   Financial Services 0.2       Common Stocks 97.9 Preferred Stocks 1.5 Preferred Securities 0.2 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.5 Netherlands 3.0 United Kingdom 1.7 Denmark 1.5 Belgium 1.3 Canada 0.9 Israel 0.1 China 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Boston Scientific Corp 9.6     Eli Lilly & Co 8.2     UnitedHealth Group Inc 7.8     Danaher Corp 6.4     Regeneron Pharmaceuticals Inc 4.4     Merck & Co Inc 3.9     Cigna Group/The 3.4     Penumbra Inc 3.1     Stryker Corp 2.4     Insulet Corp 2.2       51.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B810">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B811">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B812">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Biotechnology Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Biotechnology Fund
Class Name	Fidelity Advisor® Biotechnology Fund Class A
Trading Symbol	FBTAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Biotechnology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.98 %
Expenses Paid, Amount	$ 113
Expense Ratio, Percent	0.98%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B829">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $15,048   $10,752   $12,291   $13,975   $13,113   $17,047   $19,440   $15,756   $18,148   $23,450   MSCI U.S. IMI Biotechnology 25-50 Index   $10,000 $15,191   $12,163   $14,140   $15,791   $14,066   $18,593   $22,002   $19,500   $21,317   $27,056   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   21.78% 11.01% 8.90% Class A (without 5.75% sales charge) 29.21% 12.33% 9.54% MSCI U.S. IMI Biotechnology 25-50 Index 26.92% 13.98% 10.47% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,812,183,981
Holdings Count | shares	100
Advisory Fees Paid, Amount	$ 9,501,787
Investment Company Portfolio Turnover	73%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 100 Total Advisory Fee $ Portfolio Turnover 73 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 92.6   Pharmaceuticals 5.7   Financial Services 0.2   Health Care Technology 0.1       Common Stocks 96.8 Preferred Stocks 1.8 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 88.0 Netherlands 5.1 Denmark 3.5 Canada 1.3 Belgium 1.1 United Kingdom 1.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Abbvie Inc 18.3     Amgen Inc 9.4     Regeneron Pharmaceuticals Inc 7.0     Vertex Pharmaceuticals Inc 4.7     Alnylam Pharmaceuticals Inc 4.5     Argenx SE ADR 3.8     Ascendis Pharma A/S ADR 3.5     Vaxcyte Inc 2.6     Cytokinetics Inc 2.6     Viking Therapeutics Inc 2.3       58.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B843">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B844">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B845">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Consumer Discretionary Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Consumer Discretionary Fund
Class Name	Fidelity Advisor® Consumer Discretionary Fund Class I
Trading Symbol	FCNIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Consumer Discretionary Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.74 %
Expenses Paid, Amount	$ 79
Expense Ratio, Percent	0.74%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B862">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $12,260   $12,245   $13,502   $16,669   $17,853   $20,771   $28,675   $23,502   $26,428   $30,087   MSCI U.S. IMI Consumer Discretionary 25-50 Index   $10,000 $12,215   $12,366   $14,162   $17,199   $18,581   $22,632   $33,278   $28,694   $31,608   $35,092   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 13.84% 11.00% 11.64% MSCI U.S. IMI Consumer Discretionary 25-50 Index 11.02% 13.56% 13.38% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 475,554,258
Holdings Count | shares	60
Advisory Fees Paid, Amount	$ 2,742,271
Investment Company Portfolio Turnover	25%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 60 Total Advisory Fee $ Portfolio Turnover 25 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Broadline Retail 25.9   Specialty Retail 23.6   Hotels, Restaurants & Leisure 18.7   Automobiles 12.5   Textiles, Apparel & Luxury Goods 8.0   Household Durables 5.7   Automobile Components 3.1   Consumer Staples Distribution & Retail 1.1   Building Products 0.8   Others 0.7       Common Stocks 100.1 ASSET ALLOCATION (% of Fund's net assets) Short-Term Investments and Net Other Assets (Liabilities) - (0.1)% United States 96.1 Canada 2.3 Brazil 0.7 France 0.3 United Kingdom 0.3 Switzerland 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Amazon.com Inc 23.9     Tesla Inc 10.8     Home Depot Inc/The 5.0     Lowe's Cos Inc 4.8     TJX Cos Inc/The 3.8     Hilton Worldwide Holdings Inc 3.2     Dick's Sporting Goods Inc 2.4     McDonald's Corp 2.4     Booking Holdings Inc 2.1     Aptiv PLC 2.1       60.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B876">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B877">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B878">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Real Estate Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Real Estate Fund
Class Name	Fidelity Advisor® Real Estate Fund Class M
Trading Symbol	FHETX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.30 %
Expenses Paid, Amount	$ 137
Expense Ratio, Percent	1.30%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B895">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $10,563   $12,467   $11,740   $12,014   $13,138   $12,163   $15,828   $14,906   $13,137   $14,431   MSCI US IMI Real Estate 25/50 Linked Index   $10,000 $11,129   $13,457   $12,695   $13,185   $14,621   $12,238   $16,556   $15,854   $14,323   $15,860   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   6.01% 1.17% 3.74% Class M (without 3.50% sales charge) 9.85% 1.90% 4.11% MSCI US IMI Real Estate 25/50 Linked Index 10.73% 1.64% 4.72% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 237,005,518
Holdings Count | shares	35
Advisory Fees Paid, Amount	$ 1,374,363
Investment Company Portfolio Turnover	24%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 35 Total Advisory Fee $ Portfolio Turnover 24 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 37.6   Industrial REITs 16.2   Residential REITs 14.2   Retail REITs 10.8   Health Care REITs 9.1   Real Estate Management & Development 7.7   Hotel & Resort REITs 2.5   Office REITs 1.2       Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.6     Equinix Inc 7.8     Crown Castle Inc 7.5     CBRE Group Inc Class A 6.3     American Tower Corp 5.9     Ventas Inc 5.8     CubeSmart 5.4     Digital Realty Trust Inc 3.5     Welltower Inc 3.3     Mid-America Apartment Communities Inc 3.3       58.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B909">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B910">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B911">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Industrials Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Industrials Fund
Class Name	Fidelity Advisor® Industrials Fund Class A
Trading Symbol	FCLAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Industrials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.00 %
Expenses Paid, Amount	$ 113
Expense Ratio, Percent	1%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B928">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $10,195   $10,709   $12,060   $13,985   $14,274   $13,335   $18,086   $16,677   $19,792   $25,065   MSCI U.S. IMI Industrials 25-50 Index   $10,000 $10,697   $11,622   $13,810   $15,836   $16,344   $15,397   $22,708   $21,070   $25,150   $29,881   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   19.36% 10.60% 9.62% Class A (without 5.75% sales charge) 26.64% 11.92% 10.28% MSCI U.S. IMI Industrials 25-50 Index 18.81% 12.83% 11.57% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 582,010,248
Holdings Count | shares	51
Advisory Fees Paid, Amount	$ 3,019,014
Investment Company Portfolio Turnover	29%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 29 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Aerospace & Defense 22.7   Machinery 20.2   Ground Transportation 13.1   Electrical Equipment 11.1   Building Products 10.2   Trading Companies & Distributors 5.6   Construction & Engineering 3.8   Air Freight & Logistics 3.6   Professional Services 3.2   Others 5.5       Common Stocks 99.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     General Electric Co 6.3     Union Pacific Corp 4.9     Ingersoll Rand Inc 4.9     Howmet Aerospace Inc 4.7     Boeing Co 4.2     Parker-Hannifin Corp 4.1     Trane Technologies PLC 3.9     TransDigm Group Inc 3.7     FedEx Corp 3.4     Eaton Corp PLC 3.3       43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B942">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B943">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B944">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Consumer Discretionary Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Consumer Discretionary Fund
Class Name	Fidelity Advisor® Consumer Discretionary Fund Class M
Trading Symbol	FACPX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Consumer Discretionary Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.27 %
Expenses Paid, Amount	$ 135
Expense Ratio, Percent	1.27%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B961">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $11,765   $11,686   $12,810   $15,728   $16,760   $19,391   $26,628   $21,706   $24,282   $27,493   MSCI U.S. IMI Consumer Discretionary 25-50 Index   $10,000 $12,215   $12,366   $14,162   $17,199   $18,581   $22,632   $33,278   $28,694   $31,608   $35,092   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   9.26% 9.62% 10.64% Class M (without 3.50% sales charge) 13.23% 10.41% 11.04% MSCI U.S. IMI Consumer Discretionary 25-50 Index 11.02% 13.56% 13.38% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 475,554,258
Holdings Count | shares	60
Advisory Fees Paid, Amount	$ 2,742,271
Investment Company Portfolio Turnover	25%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 60 Total Advisory Fee $ Portfolio Turnover 25 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Broadline Retail 25.9   Specialty Retail 23.6   Hotels, Restaurants & Leisure 18.7   Automobiles 12.5   Textiles, Apparel & Luxury Goods 8.0   Household Durables 5.7   Automobile Components 3.1   Consumer Staples Distribution & Retail 1.1   Building Products 0.8   Others 0.7       Common Stocks 100.1 ASSET ALLOCATION (% of Fund's net assets) Short-Term Investments and Net Other Assets (Liabilities) - (0.1)% United States 96.1 Canada 2.3 Brazil 0.7 France 0.3 United Kingdom 0.3 Switzerland 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Amazon.com Inc 23.9     Tesla Inc 10.8     Home Depot Inc/The 5.0     Lowe's Cos Inc 4.8     TJX Cos Inc/The 3.8     Hilton Worldwide Holdings Inc 3.2     Dick's Sporting Goods Inc 2.4     McDonald's Corp 2.4     Booking Holdings Inc 2.1     Aptiv PLC 2.1       60.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B975">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B976">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B977">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Utilities Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Utilities Fund
Class Name	Fidelity Advisor® Utilities Fund Class M
Trading Symbol	FAUFX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Utilities Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.27 %
Expenses Paid, Amount	$ 137
Expense Ratio, Percent	1.27%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $9,816   $11,111   $12,167   $13,327   $14,844   $14,575   $16,707   $19,776   $19,411   $22,554   MSCI U.S. IMI Utilities 25-50 Index   $10,000 $10,922   $13,519   $14,434   $15,013   $17,419   $17,988   $20,183   $23,242   $21,712   $24,456   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   12.13% 7.95% 8.47% Class M (without 3.50% sales charge) 16.19% 8.73% 8.86% MSCI U.S. IMI Utilities 25-50 Index 12.64% 7.02% 9.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 819,716,826
Holdings Count | shares	30
Advisory Fees Paid, Amount	$ 4,138,318
Investment Company Portfolio Turnover	84%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 30 Total Advisory Fee $ Portfolio Turnover 84 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Electric Utilities 63.0   Multi-Utilities 23.0   Independent Power and Renewable Electricity Producers 7.0   Gas Utilities 2.2   Oil, Gas & Consumable Fuels 0.2       Common Stocks 95.4 Short-Term Investments and Net Other Assets (Liabilities) 4.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Australia 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NextEra Energy Inc 12.7     Sempra 7.1     PG&E Corp 5.9     American Electric Power Co Inc 5.6     Edison International 5.4     Public Service Enterprise Group Inc 5.0     Eversource Energy 5.0     Constellation Energy Corp 5.0     Entergy Corp 4.8     FirstEnergy Corp 4.3       60.8
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1008">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1009">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1010">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Biotechnology Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Biotechnology Fund
Class Name	Fidelity Advisor® Biotechnology Fund Class Z
Trading Symbol	FIJYX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Biotechnology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.60 %
Expenses Paid, Amount	$ 68
Expense Ratio, Percent	0.60%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1027">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $9,217   $12,031   $13,774   $11,207   $12,965   $16,814   MSCI U.S. IMI Biotechnology 25-50 Index   $10,000 $8,683   $11,477   $13,581   $12,037   $13,159   $16,701   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 29.69% 12.77% 9.32% MSCI U.S. IMI Biotechnology 25-50 Index 26.92% 13.98% 9.19% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,812,183,981
Holdings Count | shares	100
Advisory Fees Paid, Amount	$ 9,501,787
Investment Company Portfolio Turnover	73%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 100 Total Advisory Fee $ Portfolio Turnover 73 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 92.6   Pharmaceuticals 5.7   Financial Services 0.2   Health Care Technology 0.1       Common Stocks 96.8 Preferred Stocks 1.8 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 88.0 Netherlands 5.1 Denmark 3.5 Canada 1.3 Belgium 1.1 United Kingdom 1.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Abbvie Inc 18.3     Amgen Inc 9.4     Regeneron Pharmaceuticals Inc 7.0     Vertex Pharmaceuticals Inc 4.7     Alnylam Pharmaceuticals Inc 4.5     Argenx SE ADR 3.8     Ascendis Pharma A/S ADR 3.5     Vaxcyte Inc 2.6     Cytokinetics Inc 2.6     Viking Therapeutics Inc 2.3       58.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1042">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1043">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1044">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Utilities Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Utilities Fund
Class Name	Fidelity Advisor® Utilities Fund Class Z
Trading Symbol	FIKIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Utilities Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.57 %
Expenses Paid, Amount	$ 62
Expense Ratio, Percent	0.57%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1061">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $10,904   $10,778   $12,439   $14,824   $14,644   $17,129   MSCI U.S. IMI Utilities 25-50 Index   $10,000 $11,420   $11,793   $13,232   $15,237   $14,234   $16,033   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 16.97% 9.45% 9.67% MSCI U.S. IMI Utilities 25-50 Index 12.64% 7.02% 8.43% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 819,716,826
Holdings Count | shares	30
Advisory Fees Paid, Amount	$ 4,138,318
Investment Company Portfolio Turnover	84%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 30 Total Advisory Fee $ Portfolio Turnover 84 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Electric Utilities 63.0   Multi-Utilities 23.0   Independent Power and Renewable Electricity Producers 7.0   Gas Utilities 2.2   Oil, Gas & Consumable Fuels 0.2       Common Stocks 95.4 Short-Term Investments and Net Other Assets (Liabilities) 4.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Australia 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NextEra Energy Inc 12.7     Sempra 7.1     PG&E Corp 5.9     American Electric Power Co Inc 5.6     Edison International 5.4     Public Service Enterprise Group Inc 5.0     Eversource Energy 5.0     Constellation Energy Corp 5.0     Entergy Corp 4.8     FirstEnergy Corp 4.3       60.8
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1076">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1077">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1078">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Real Estate Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Global Real Estate Fund
Class Name	Fidelity Advisor® Global Real Estate Fund Class A
Trading Symbol	FWRAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Global Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.20 %
Expenses Paid, Amount	$ 125
Expense Ratio, Percent	1.20%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • ® EPRA SM /NAREIT ® Developed Index for the fiscal year. • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1095">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE August 11, 2016 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $9,331   $9,906   $10,722   $10,228   $13,356   $12,101   $11,156   $12,146   FTSE® EPRA℠/NAREIT® Developed Index   $10,000 $9,960   $10,524   $11,380   $9,855   $13,420   $12,176   $11,285   $12,184   MSCI ACWI (All Country World Index) Index   $10,000 $11,606   $12,928   $13,363   $14,382   $19,214   $17,256   $19,556   $22,962     2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class A (incl. 5.75% sales charge)   2.62% 1.32% 2.47% Class A (without 5.75% sales charge) 8.88% 2.52% 3.23% FTSE® EPRA℠/NAREIT® Developed Index 7.97% 1.38% 2.51% MSCI ACWI (All Country World Index) Index 17.42% 11.43% 10.99% A   From August 11, 2016   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 11, 2016
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,027,346
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 39,394
Investment Company Portfolio Turnover	32%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 32 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Residential REITs 19.8   Specialized REITs 19.1   Industrial REITs 18.3   Retail REITs 18.0   Real Estate Management & Development 11.9   Health Care REITs 7.1   Diversified REITs 2.8   Hotel & Resort REITs 1.3   Office REITs 0.6       Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets) United States 61.9 United Kingdom 8.3 Japan 8.2 Australia 4.9 Canada 3.7 Singapore 3.0 France 2.3 Sweden 1.9 Germany 1.8 Others 4.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.1     Equinix Inc 5.2     Public Storage Operating Co 3.9     Ventas Inc 3.6     Digital Realty Trust Inc 3.0     Kimco Realty Corp 2.8     Grainger PLC 2.6     NNN REIT Inc 2.5     UDR Inc 2.4     Welltower Inc 2.4       37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1110">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1111">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1112">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Health Care Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Health Care Fund
Class Name	Fidelity Advisor® Health Care Fund Class I
Trading Symbol	FHCIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Health Care Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.70 %
Expenses Paid, Amount	$ 72
Expense Ratio, Percent	0.70%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1129">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $13,440   $12,150   $13,338   $16,018   $16,522   $20,626   $24,959   $22,044   $22,921   $24,520   MSCI U.S. IMI Health Care 25-50 Index   $10,000 $13,063   $12,726   $13,917   $16,068   $16,693   $19,997   $25,628   $24,807   $25,460   $28,709   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 6.98% 8.22% 9.38% MSCI U.S. IMI Health Care 25-50 Index 12.76% 11.45% 11.12% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 4,615,583,149
Holdings Count | shares	103
Advisory Fees Paid, Amount	$ 27,914,465
Investment Company Portfolio Turnover	37%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 103 Total Advisory Fee $ Portfolio Turnover 37 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 24.4   Health Care Equipment & Supplies 23.5   Health Care Providers & Services 21.8   Pharmaceuticals 16.6   Life Sciences Tools & Services 10.9   Health Care Technology 2.0   Financial Services 0.2       Common Stocks 97.9 Preferred Stocks 1.5 Preferred Securities 0.2 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.5 Netherlands 3.0 United Kingdom 1.7 Denmark 1.5 Belgium 1.3 Canada 0.9 Israel 0.1 China 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Boston Scientific Corp 9.6     Eli Lilly & Co 8.2     UnitedHealth Group Inc 7.8     Danaher Corp 6.4     Regeneron Pharmaceuticals Inc 4.4     Merck & Co Inc 3.9     Cigna Group/The 3.4     Penumbra Inc 3.1     Stryker Corp 2.4     Insulet Corp 2.2       51.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1143">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1144">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1145">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Financials Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Financials Fund
Class Name	Fidelity Advisor® Financials Fund Class Z
Trading Symbol	FIKBX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Financials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.62 %
Expenses Paid, Amount	$ 72
Expense Ratio, Percent	0.62%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1162">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $10,472   $8,924   $14,504   $14,065   $14,710   $19,231   MSCI U.S. IMI Financials 5% Capped Linked Index   $10,000 $10,457   $8,858   $13,921   $13,268   $13,983   $17,897   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 30.73% 12.92% 11.86% MSCI U.S. IMI Financials 5% Capped Linked Index 27.98% 11.35% 10.49% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 507,414,487
Holdings Count | shares	66
Advisory Fees Paid, Amount	$ 2,566,292
Investment Company Portfolio Turnover	44%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 66 Total Advisory Fee $ Portfolio Turnover 44 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Banks 35.0   Capital Markets 21.1   Financial Services 20.7   Insurance 18.5   Consumer Finance 3.7   Professional Services 1.0       Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.0 United Kingdom 3.7 Puerto Rico 2.1 Grand Cayman (UK Overseas Ter) 0.7 Mexico 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mastercard Inc Class A 10.1     Wells Fargo & Co 6.4     Bank of America Corp 5.1     Citigroup Inc 3.1     Chubb Ltd 2.6     M&T Bank Corp 2.6     Morgan Stanley 2.5     Apollo Global Management Inc 2.4     Reinsurance Group of America Inc 2.3     Popular Inc 2.1       39.2
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period. The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Name [Text Block]	The fund's name changed from Fidelity Advisor Financial Services Fund to Fidelity Advisor Financials Fund during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1178">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1179">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1180">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Semiconductors Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Semiconductors Fund
Class Name	Fidelity Advisor® Semiconductors Fund Class M
Trading Symbol	FELTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Semiconductors Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.21 %
Expenses Paid, Amount	$ 144
Expense Ratio, Percent	1.21%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1197">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $10,668   $12,803   $16,735   $21,245   $23,337   $30,403   $49,249   $47,558   $70,838   $98,591   MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index   $10,000 $10,481   $13,028   $17,291   $21,750   $23,948   $32,281   $51,070   $48,484   $72,407   $107,971   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   34.31% 32.45% 25.71% Class M (without 3.50% sales charge) 39.18% 33.40% 26.16% MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index 49.12% 35.15% 26.86% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 2,698,217,311
Holdings Count | shares	45
Advisory Fees Paid, Amount	$ 11,387,050
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 92.7   Technology Hardware, Storage & Peripherals 2.4   Electronic Equipment, Instruments & Components 0.1   Financial Services 0.0   Metals & Mining 0.0       Common Stocks 95.0 Preferred Stocks 0.2 Preferred Securities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.8 ASSET ALLOCATION (% of Fund's net assets) United States 79.9 Taiwan 7.1 China 5.6 Netherlands 5.0 Israel 1.7 Japan 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 25.8     ON Semiconductor Corp 7.3     Taiwan Semiconductor Manufacturing Co Ltd ADR 6.1     NXP Semiconductors NV 5.6     Micron Technology Inc 5.4     ASML Holding NV depository receipt 5.0     GlobalFoundries Inc 4.8     Lam Research Corp 4.8     Broadcom Inc 4.3     Advanced Micro Devices Inc 3.8       72.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1211">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1212">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1213">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Health Care Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Health Care Fund
Class Name	Fidelity Advisor® Health Care Fund Class Z
Trading Symbol	FIKCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Health Care Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.56 %
Expenses Paid, Amount	$ 58
Expense Ratio, Percent	0.56%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1230">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $9,714   $12,141   $14,709   $13,008   $13,543   $14,506   MSCI U.S. IMI Health Care 25-50 Index   $10,000 $9,682   $11,598   $14,864   $14,388   $14,767   $16,651   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 7.11% 8.35% 6.58% MSCI U.S. IMI Health Care 25-50 Index 12.76% 11.45% 9.14% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 4,615,583,149
Holdings Count | shares	103
Advisory Fees Paid, Amount	$ 27,914,465
Investment Company Portfolio Turnover	37%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 103 Total Advisory Fee $ Portfolio Turnover 37 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 24.4   Health Care Equipment & Supplies 23.5   Health Care Providers & Services 21.8   Pharmaceuticals 16.6   Life Sciences Tools & Services 10.9   Health Care Technology 2.0   Financial Services 0.2       Common Stocks 97.9 Preferred Stocks 1.5 Preferred Securities 0.2 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.5 Netherlands 3.0 United Kingdom 1.7 Denmark 1.5 Belgium 1.3 Canada 0.9 Israel 0.1 China 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Boston Scientific Corp 9.6     Eli Lilly & Co 8.2     UnitedHealth Group Inc 7.8     Danaher Corp 6.4     Regeneron Pharmaceuticals Inc 4.4     Merck & Co Inc 3.9     Cigna Group/The 3.4     Penumbra Inc 3.1     Stryker Corp 2.4     Insulet Corp 2.2       51.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1245">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1246">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1247">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Health Care Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Health Care Fund
Class Name	Fidelity Advisor® Health Care Fund Class A
Trading Symbol	FACDX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Health Care Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.96 %
Expenses Paid, Amount	$ 100
Expense Ratio, Percent	0.96%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1264">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $12,636   $11,395   $12,474   $14,945   $15,374   $19,141   $23,102   $20,352   $21,109   $22,519   MSCI U.S. IMI Health Care 25-50 Index   $10,000 $13,063   $12,726   $13,917   $16,068   $16,693   $19,997   $25,628   $24,807   $25,460   $28,709   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   0.55% 6.66% 8.46% Class A (without 5.75% sales charge) 6.68% 7.93% 9.10% MSCI U.S. IMI Health Care 25-50 Index 12.76% 11.45% 11.12% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 4,615,583,149
Holdings Count | shares	103
Advisory Fees Paid, Amount	$ 27,914,465
Investment Company Portfolio Turnover	37%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 103 Total Advisory Fee $ Portfolio Turnover 37 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 24.4   Health Care Equipment & Supplies 23.5   Health Care Providers & Services 21.8   Pharmaceuticals 16.6   Life Sciences Tools & Services 10.9   Health Care Technology 2.0   Financial Services 0.2       Common Stocks 97.9 Preferred Stocks 1.5 Preferred Securities 0.2 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.5 Netherlands 3.0 United Kingdom 1.7 Denmark 1.5 Belgium 1.3 Canada 0.9 Israel 0.1 China 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Boston Scientific Corp 9.6     Eli Lilly & Co 8.2     UnitedHealth Group Inc 7.8     Danaher Corp 6.4     Regeneron Pharmaceuticals Inc 4.4     Merck & Co Inc 3.9     Cigna Group/The 3.4     Penumbra Inc 3.1     Stryker Corp 2.4     Insulet Corp 2.2       51.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1278">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1279">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1280">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Real Estate Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Real Estate Fund
Class Name	Fidelity Advisor® Real Estate Fund Class Z
Trading Symbol	FIKJX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.64 %
Expenses Paid, Amount	$ 67
Expense Ratio, Percent	0.64%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1297">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $11,122   $10,366   $13,574   $12,867   $11,413   $12,622   MSCI US IMI Real Estate 25/50 Linked Index   $10,000 $11,209   $9,382   $12,693   $12,155   $10,981   $12,159   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 10.60% 2.56% 4.07% MSCI US IMI Real Estate 25/50 Linked Index 10.73% 1.64% 3.41% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 237,005,518
Holdings Count | shares	35
Advisory Fees Paid, Amount	$ 1,374,363
Investment Company Portfolio Turnover	24%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 35 Total Advisory Fee $ Portfolio Turnover 24 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 37.6   Industrial REITs 16.2   Residential REITs 14.2   Retail REITs 10.8   Health Care REITs 9.1   Real Estate Management & Development 7.7   Hotel & Resort REITs 2.5   Office REITs 1.2       Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.6     Equinix Inc 7.8     Crown Castle Inc 7.5     CBRE Group Inc Class A 6.3     American Tower Corp 5.9     Ventas Inc 5.8     CubeSmart 5.4     Digital Realty Trust Inc 3.5     Welltower Inc 3.3     Mid-America Apartment Communities Inc 3.3       58.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1312">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1313">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1314">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Biotechnology Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Biotechnology Fund
Class Name	Fidelity Advisor® Biotechnology Fund Class I
Trading Symbol	FBTIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Biotechnology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.72 %
Expenses Paid, Amount	$ 82
Expense Ratio, Percent	0.72%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1331">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $16,000   $11,469   $13,139   $14,982   $14,100   $18,376   $21,010   $17,073   $19,721   $25,543   MSCI U.S. IMI Biotechnology 25-50 Index   $10,000 $15,191   $12,163   $14,140   $15,791   $14,066   $18,593   $22,002   $19,500   $21,317   $27,056   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 29.53% 12.62% 9.83% MSCI U.S. IMI Biotechnology 25-50 Index 26.92% 13.98% 10.47% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,812,183,981
Holdings Count | shares	100
Advisory Fees Paid, Amount	$ 9,501,787
Investment Company Portfolio Turnover	73%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 100 Total Advisory Fee $ Portfolio Turnover 73 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Biotechnology 92.6   Pharmaceuticals 5.7   Financial Services 0.2   Health Care Technology 0.1       Common Stocks 96.8 Preferred Stocks 1.8 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 88.0 Netherlands 5.1 Denmark 3.5 Canada 1.3 Belgium 1.1 United Kingdom 1.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Abbvie Inc 18.3     Amgen Inc 9.4     Regeneron Pharmaceuticals Inc 7.0     Vertex Pharmaceuticals Inc 4.7     Alnylam Pharmaceuticals Inc 4.5     Argenx SE ADR 3.8     Ascendis Pharma A/S ADR 3.5     Vaxcyte Inc 2.6     Cytokinetics Inc 2.6     Viking Therapeutics Inc 2.3       58.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1345">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1346">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1347">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Technology Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Technology Fund
Class Name	Fidelity Advisor® Technology Fund Class A
Trading Symbol	FADTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Technology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.95 %
Expenses Paid, Amount	$ 107
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1364">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $10,456   $11,278   $15,772   $19,783   $21,219   $31,580   $45,729   $38,057   $49,667   $63,121   MSCI U.S. IMI Information Technology 25-50 Index   $10,000 $11,306   $12,261   $15,808   $20,247   $23,485   $32,225   $45,360   $41,091   $50,982   $64,137   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   19.78% 22.90% 20.23% Class A (without 5.75% sales charge) 27.09% 24.36% 20.95% MSCI U.S. IMI Information Technology 25-50 Index 25.80% 22.25% 20.42% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,458,251,428
Holdings Count | shares	89
Advisory Fees Paid, Amount	$ 31,726,651
Investment Company Portfolio Turnover	34%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 89 Total Advisory Fee $ Portfolio Turnover 34 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 41.8   Technology Hardware, Storage & Peripherals 20.7   Software 20.6   IT Services 4.4   Communications Equipment 2.5   Ground Transportation 2.2   Broadline Retail 1.5   Hotels, Restaurants & Leisure 0.6   Entertainment 0.5   Others 0.9       Common Stocks 94.5 Preferred Stocks 1.2 Preferred Securities 0.0 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.2 China 4.5 Taiwan 2.0 Netherlands 1.2 Canada 1.0 India 0.1 Korea (South) 0.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 20.1     Apple Inc 19.2     Microsoft Corp 10.7     NXP Semiconductors NV 4.4     ON Semiconductor Corp 4.4     Marvell Technology Inc 3.9     Servicenow Inc 3.6     Okta Inc Class A 2.9     GlobalFoundries Inc 2.8     Cisco Systems Inc 2.5       74.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1378">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1379">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1380">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Consumer Discretionary Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Consumer Discretionary Fund
Class Name	Fidelity Advisor® Consumer Discretionary Fund Class C
Trading Symbol	FCECX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Consumer Discretionary Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.76 %
Expenses Paid, Amount	$ 188
Expense Ratio, Percent	1.76%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1397">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $12,137   $12,002   $13,092   $15,998   $16,962   $19,529   $26,688   $21,648   $24,276   $27,562   MSCI U.S. IMI Consumer Discretionary 25-50 Index   $10,000 $12,215   $12,366   $14,162   $17,199   $18,581   $22,632   $33,278   $28,694   $31,608   $35,092   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 11.70% 9.87% 10.67% Class C 12.70% 9.87% 10.67% MSCI U.S. IMI Consumer Discretionary 25-50 Index 11.02% 13.56% 13.38% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 475,554,258
Holdings Count | shares	60
Advisory Fees Paid, Amount	$ 2,742,271
Investment Company Portfolio Turnover	25%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 60 Total Advisory Fee $ Portfolio Turnover 25 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Broadline Retail 25.9   Specialty Retail 23.6   Hotels, Restaurants & Leisure 18.7   Automobiles 12.5   Textiles, Apparel & Luxury Goods 8.0   Household Durables 5.7   Automobile Components 3.1   Consumer Staples Distribution & Retail 1.1   Building Products 0.8   Others 0.7       Common Stocks 100.1 ASSET ALLOCATION (% of Fund's net assets) Short-Term Investments and Net Other Assets (Liabilities) - (0.1)% United States 96.1 Canada 2.3 Brazil 0.7 France 0.3 United Kingdom 0.3 Switzerland 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Amazon.com Inc 23.9     Tesla Inc 10.8     Home Depot Inc/The 5.0     Lowe's Cos Inc 4.8     TJX Cos Inc/The 3.8     Hilton Worldwide Holdings Inc 3.2     Dick's Sporting Goods Inc 2.4     McDonald's Corp 2.4     Booking Holdings Inc 2.1     Aptiv PLC 2.1       60.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1411">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1412">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1413">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Energy Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Energy Fund
Class Name	Fidelity Advisor® Energy Fund Class Z
Trading Symbol	FIKAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Energy Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.59 %
Expenses Paid, Amount	$ 63
Expense Ratio, Percent	0.59%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1430">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $7,566   $4,598   $6,781   $11,652   $13,563   $15,178   MSCI U.S. IMI Energy 25-50 Index   $10,000 $7,981   $4,842   $7,269   $12,046   $13,985   $15,431   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 11.90% 14.94% 7.42% MSCI U.S. IMI Energy 25-50 Index 10.33% 14.09% 7.72% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,311,457,602
Holdings Count | shares	43
Advisory Fees Paid, Amount	$ 7,393,032
Investment Company Portfolio Turnover	31%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 43 Total Advisory Fee $ Portfolio Turnover 31 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 81.1   Energy Equipment & Services 16.3   Independent Power and Renewable Electricity Producers 1.4   Machinery 1.0       Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 82.6 Canada 13.4 United Kingdom 3.3 Norway 0.3 Cameroon 0.2 France 0.1 United Arab Emirates 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 24.8     Cenovus Energy Inc 6.2     Schlumberger NV 5.4     Chevron Corp 4.8     Marathon Petroleum Corp 4.8     Canadian Natural Resources Ltd 4.5     Valero Energy Corp 3.9     Cheniere Energy Inc 3.9     Occidental Petroleum Corp 3.8     Hess Corp 3.4       65.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1445">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1446">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1447">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Energy Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Energy Fund
Class Name	Fidelity Advisor® Energy Fund Class I
Trading Symbol	FANIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Energy Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.72 %
Expenses Paid, Amount	$ 76
Expense Ratio, Percent	0.72%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1464">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $7,127   $7,234   $7,172   $8,924   $6,707   $4,069   $5,992   $10,284   $11,955   $13,358   MSCI U.S. IMI Energy 25-50 Index   $10,000 $7,208   $7,220   $7,200   $8,707   $7,019   $4,258   $6,393   $10,594   $12,299   $13,570   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 11.73% 14.77% 2.94% MSCI U.S. IMI Energy 25-50 Index 10.33% 14.09% 3.10% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,311,457,602
Holdings Count | shares	43
Advisory Fees Paid, Amount	$ 7,393,032
Investment Company Portfolio Turnover	31%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 43 Total Advisory Fee $ Portfolio Turnover 31 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 81.1   Energy Equipment & Services 16.3   Independent Power and Renewable Electricity Producers 1.4   Machinery 1.0       Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 82.6 Canada 13.4 United Kingdom 3.3 Norway 0.3 Cameroon 0.2 France 0.1 United Arab Emirates 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 24.8     Cenovus Energy Inc 6.2     Schlumberger NV 5.4     Chevron Corp 4.8     Marathon Petroleum Corp 4.8     Canadian Natural Resources Ltd 4.5     Valero Energy Corp 3.9     Cheniere Energy Inc 3.9     Occidental Petroleum Corp 3.8     Hess Corp 3.4       65.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1478">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1479">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1480">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Consumer Discretionary Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Consumer Discretionary Fund
Class Name	Fidelity Advisor® Consumer Discretionary Fund Class A
Trading Symbol	FCNAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Consumer Discretionary Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.00 %
Expenses Paid, Amount	$ 107
Expense Ratio, Percent	1%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1497">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $11,523   $11,479   $12,618   $15,536   $16,593   $19,253   $26,507   $21,668   $24,298   $27,587   MSCI U.S. IMI Consumer Discretionary 25-50 Index   $10,000 $12,215   $12,366   $14,162   $17,199   $18,581   $22,632   $33,278   $28,694   $31,608   $35,092   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   7.01% 9.40% 10.68% Class A (without 5.75% sales charge) 13.54% 10.70% 11.34% MSCI U.S. IMI Consumer Discretionary 25-50 Index 11.02% 13.56% 13.38% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 475,554,258
Holdings Count | shares	60
Advisory Fees Paid, Amount	$ 2,742,271
Investment Company Portfolio Turnover	25%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 60 Total Advisory Fee $ Portfolio Turnover 25 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Broadline Retail 25.9   Specialty Retail 23.6   Hotels, Restaurants & Leisure 18.7   Automobiles 12.5   Textiles, Apparel & Luxury Goods 8.0   Household Durables 5.7   Automobile Components 3.1   Consumer Staples Distribution & Retail 1.1   Building Products 0.8   Others 0.7       Common Stocks 100.1 ASSET ALLOCATION (% of Fund's net assets) Short-Term Investments and Net Other Assets (Liabilities) - (0.1)% United States 96.1 Canada 2.3 Brazil 0.7 France 0.3 United Kingdom 0.3 Switzerland 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Amazon.com Inc 23.9     Tesla Inc 10.8     Home Depot Inc/The 5.0     Lowe's Cos Inc 4.8     TJX Cos Inc/The 3.8     Hilton Worldwide Holdings Inc 3.2     Dick's Sporting Goods Inc 2.4     McDonald's Corp 2.4     Booking Holdings Inc 2.1     Aptiv PLC 2.1       60.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1511">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1512">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1513">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Industrials Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Industrials Fund
Class Name	Fidelity Advisor® Industrials Fund Class M
Trading Symbol	FCLTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Industrials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.25 %
Expenses Paid, Amount	$ 141
Expense Ratio, Percent	1.25%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1530">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $10,410   $10,903   $12,248   $14,171   $14,423   $13,440   $18,178   $16,719   $19,793   $24,999   MSCI U.S. IMI Industrials 25-50 Index   $10,000 $10,697   $11,622   $13,810   $15,836   $16,344   $15,397   $22,708   $21,070   $25,150   $29,881   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   21.88% 10.84% 9.60% Class M (without 3.50% sales charge) 26.30% 11.63% 9.99% MSCI U.S. IMI Industrials 25-50 Index 18.81% 12.83% 11.57% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 582,010,248
Holdings Count | shares	51
Advisory Fees Paid, Amount	$ 3,019,014
Investment Company Portfolio Turnover	29%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 29 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Aerospace & Defense 22.7   Machinery 20.2   Ground Transportation 13.1   Electrical Equipment 11.1   Building Products 10.2   Trading Companies & Distributors 5.6   Construction & Engineering 3.8   Air Freight & Logistics 3.6   Professional Services 3.2   Others 5.5       Common Stocks 99.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     General Electric Co 6.3     Union Pacific Corp 4.9     Ingersoll Rand Inc 4.9     Howmet Aerospace Inc 4.7     Boeing Co 4.2     Parker-Hannifin Corp 4.1     Trane Technologies PLC 3.9     TransDigm Group Inc 3.7     FedEx Corp 3.4     Eaton Corp PLC 3.3       43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1544">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1545">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1546">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Technology Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Technology Fund
Class Name	Fidelity Advisor® Technology Fund Class M
Trading Symbol	FATEX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Technology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.19 %
Expenses Paid, Amount	$ 135
Expense Ratio, Percent	1.19%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1563">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M   $9,650 $10,676   $11,486   $16,023   $20,044   $21,446   $31,834   $45,991   $38,175   $49,703   $63,010   MSCI U.S. IMI Information Technology 25-50 Index   $10,000 $11,306   $12,261   $15,808   $20,247   $23,485   $32,225   $45,360   $41,091   $50,982   $64,137   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   22.34% 23.17% 20.21% Class M (without 3.50% sales charge) 26.77% 24.05% 20.64% MSCI U.S. IMI Information Technology 25-50 Index 25.80% 22.25% 20.42% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,458,251,428
Holdings Count | shares	89
Advisory Fees Paid, Amount	$ 31,726,651
Investment Company Portfolio Turnover	34%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 89 Total Advisory Fee $ Portfolio Turnover 34 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 41.8   Technology Hardware, Storage & Peripherals 20.7   Software 20.6   IT Services 4.4   Communications Equipment 2.5   Ground Transportation 2.2   Broadline Retail 1.5   Hotels, Restaurants & Leisure 0.6   Entertainment 0.5   Others 0.9       Common Stocks 94.5 Preferred Stocks 1.2 Preferred Securities 0.0 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.2 China 4.5 Taiwan 2.0 Netherlands 1.2 Canada 1.0 India 0.1 Korea (South) 0.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 20.1     Apple Inc 19.2     Microsoft Corp 10.7     NXP Semiconductors NV 4.4     ON Semiconductor Corp 4.4     Marvell Technology Inc 3.9     Servicenow Inc 3.6     Okta Inc Class A 2.9     GlobalFoundries Inc 2.8     Cisco Systems Inc 2.5       74.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1577">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1578">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1579">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Semiconductors Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Semiconductors Fund
Class Name	Fidelity Advisor® Semiconductors Fund Class Z
Trading Symbol	FIKGX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Semiconductors Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.59 %
Expenses Paid, Amount	$ 71
Expense Ratio, Percent	0.59%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1596">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?      CUMULATIVE PERFORMANCE October 2, 2018 through July 31, 2024. Initial investment of $10,000. Class Z   $10,000 $11,203   $14,700   $23,970   $23,292   $34,912   $48,893   MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index   $10,000 $10,992   $14,816   $23,440   $22,253   $33,233   $49,556   S&P 500® Index   $10,000 $10,365   $11,604   $15,833   $15,098   $17,064   $20,843     2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year Life of Fund A Class Z 40.05% 34.27% 31.27% MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index 49.12% 35.15% 31.57% S&P 500® Index 22.15% 15.00% 13.42% A   From October 2, 2018   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 2,698,217,311
Holdings Count | shares	45
Advisory Fees Paid, Amount	$ 11,387,050
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 92.7   Technology Hardware, Storage & Peripherals 2.4   Electronic Equipment, Instruments & Components 0.1   Financial Services 0.0   Metals & Mining 0.0       Common Stocks 95.0 Preferred Stocks 0.2 Preferred Securities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.8 ASSET ALLOCATION (% of Fund's net assets) United States 79.9 Taiwan 7.1 China 5.6 Netherlands 5.0 Israel 1.7 Japan 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 25.8     ON Semiconductor Corp 7.3     Taiwan Semiconductor Manufacturing Co Ltd ADR 6.1     NXP Semiconductors NV 5.6     Micron Technology Inc 5.4     ASML Holding NV depository receipt 5.0     GlobalFoundries Inc 4.8     Lam Research Corp 4.8     Broadcom Inc 4.3     Advanced Micro Devices Inc 3.8       72.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1611">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1612">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1613">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Utilities Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Utilities Fund
Class Name	Fidelity Advisor® Utilities Fund Class A
Trading Symbol	FUGAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Utilities Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.00 %
Expenses Paid, Amount	$ 109
Expense Ratio, Percent	1%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1630">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $9,615   $10,912   $11,989   $13,169   $14,713   $14,485   $16,651   $19,764   $19,451   $22,657   MSCI U.S. IMI Utilities 25-50 Index   $10,000 $10,922   $13,519   $14,434   $15,013   $17,419   $17,988   $20,183   $23,242   $21,712   $24,456   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   9.78% 7.73% 8.52% Class A (without 5.75% sales charge) 16.48% 9.02% 9.17% MSCI U.S. IMI Utilities 25-50 Index 12.64% 7.02% 9.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 819,716,826
Holdings Count | shares	30
Advisory Fees Paid, Amount	$ 4,138,318
Investment Company Portfolio Turnover	84%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 30 Total Advisory Fee $ Portfolio Turnover 84 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Electric Utilities 63.0   Multi-Utilities 23.0   Independent Power and Renewable Electricity Producers 7.0   Gas Utilities 2.2   Oil, Gas & Consumable Fuels 0.2       Common Stocks 95.4 Short-Term Investments and Net Other Assets (Liabilities) 4.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Australia 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NextEra Energy Inc 12.7     Sempra 7.1     PG&E Corp 5.9     American Electric Power Co Inc 5.6     Edison International 5.4     Public Service Enterprise Group Inc 5.0     Eversource Energy 5.0     Constellation Energy Corp 5.0     Entergy Corp 4.8     FirstEnergy Corp 4.3       60.8
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1644">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1645">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1646">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Utilities Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Utilities Fund
Class Name	Fidelity Advisor® Utilities Fund Class C
Trading Symbol	FUGCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Utilities Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.75 %
Expenses Paid, Amount	$ 189
Expense Ratio, Percent	1.75%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1663">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $10,129   $11,409   $12,438   $13,562   $15,036   $14,693   $16,765   $19,747   $19,434   $22,637   MSCI U.S. IMI Utilities 25-50 Index   $10,000 $10,922   $13,519   $14,434   $15,013   $17,419   $17,988   $20,183   $23,242   $21,712   $24,456   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 14.64% 8.20% 8.51% Class C 15.64% 8.20% 8.51% MSCI U.S. IMI Utilities 25-50 Index 12.64% 7.02% 9.36% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 819,716,826
Holdings Count | shares	30
Advisory Fees Paid, Amount	$ 4,138,318
Investment Company Portfolio Turnover	84%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 30 Total Advisory Fee $ Portfolio Turnover 84 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Electric Utilities 63.0   Multi-Utilities 23.0   Independent Power and Renewable Electricity Producers 7.0   Gas Utilities 2.2   Oil, Gas & Consumable Fuels 0.2       Common Stocks 95.4 Short-Term Investments and Net Other Assets (Liabilities) 4.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Australia 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NextEra Energy Inc 12.7     Sempra 7.1     PG&E Corp 5.9     American Electric Power Co Inc 5.6     Edison International 5.4     Public Service Enterprise Group Inc 5.0     Eversource Energy 5.0     Constellation Energy Corp 5.0     Entergy Corp 4.8     FirstEnergy Corp 4.3       60.8
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1677">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1678">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1679">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Industrials Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Industrials Fund
Class Name	Fidelity Advisor® Industrials Fund Class C
Trading Symbol	FCLCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Industrials Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.76 %
Expenses Paid, Amount	$ 198
Expense Ratio, Percent	1.76%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1696">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $10,736   $11,191   $12,507   $14,399   $14,583   $13,523   $18,199   $16,655   $19,766   $25,032   MSCI U.S. IMI Industrials 25-50 Index   $10,000 $10,697   $11,622   $13,810   $15,836   $16,344   $15,397   $22,708   $21,070   $25,150   $29,881   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 24.68% 11.08% 9.61% Class C 25.68% 11.08% 9.61% MSCI U.S. IMI Industrials 25-50 Index 18.81% 12.83% 11.57% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 582,010,248
Holdings Count | shares	51
Advisory Fees Paid, Amount	$ 3,019,014
Investment Company Portfolio Turnover	29%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 29 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Aerospace & Defense 22.7   Machinery 20.2   Ground Transportation 13.1   Electrical Equipment 11.1   Building Products 10.2   Trading Companies & Distributors 5.6   Construction & Engineering 3.8   Air Freight & Logistics 3.6   Professional Services 3.2   Others 5.5       Common Stocks 99.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     General Electric Co 6.3     Union Pacific Corp 4.9     Ingersoll Rand Inc 4.9     Howmet Aerospace Inc 4.7     Boeing Co 4.2     Parker-Hannifin Corp 4.1     Trane Technologies PLC 3.9     TransDigm Group Inc 3.7     FedEx Corp 3.4     Eaton Corp PLC 3.3       43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1710">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1711">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1712">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Energy Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Energy Fund
Class Name	Fidelity Advisor® Energy Fund Class C
Trading Symbol	FNRCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Energy Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.74 %
Expenses Paid, Amount	$ 183
Expense Ratio, Percent	1.74%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1729">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $7,056   $7,093   $6,962   $8,575   $6,378   $3,830   $5,580   $9,478   $10,989   $12,247   MSCI U.S. IMI Energy 25-50 Index   $10,000 $7,208   $7,220   $7,200   $8,707   $7,019   $4,258   $6,393   $10,594   $12,299   $13,570   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 9.61% 13.60% 2.05% Class C 10.61% 13.60% 2.05% MSCI U.S. IMI Energy 25-50 Index 10.33% 14.09% 3.10% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,311,457,602
Holdings Count | shares	43
Advisory Fees Paid, Amount	$ 7,393,032
Investment Company Portfolio Turnover	31%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 43 Total Advisory Fee $ Portfolio Turnover 31 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 81.1   Energy Equipment & Services 16.3   Independent Power and Renewable Electricity Producers 1.4   Machinery 1.0       Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 82.6 Canada 13.4 United Kingdom 3.3 Norway 0.3 Cameroon 0.2 France 0.1 United Arab Emirates 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 24.8     Cenovus Energy Inc 6.2     Schlumberger NV 5.4     Chevron Corp 4.8     Marathon Petroleum Corp 4.8     Canadian Natural Resources Ltd 4.5     Valero Energy Corp 3.9     Cheniere Energy Inc 3.9     Occidental Petroleum Corp 3.8     Hess Corp 3.4       65.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1743">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1744">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1745">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Technology Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Technology Fund
Class Name	Fidelity Advisor® Technology Fund Class C
Trading Symbol	FTHCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Technology Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.70 %
Expenses Paid, Amount	$ 192
Expense Ratio, Percent	1.70%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1762">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class C   $10,000 $11,007   $11,786   $16,359   $20,363   $21,675   $32,012   $46,010   $37,997   $49,589   $63,022   MSCI U.S. IMI Information Technology 25-50 Index   $10,000 $11,306   $12,261   $15,808   $20,247   $23,485   $32,225   $45,360   $41,091   $50,982   $64,137   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 25.14% 23.42% 20.21% Class C 26.14% 23.42% 20.21% MSCI U.S. IMI Information Technology 25-50 Index 25.80% 22.25% 20.42% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,458,251,428
Holdings Count | shares	89
Advisory Fees Paid, Amount	$ 31,726,651
Investment Company Portfolio Turnover	34%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 89 Total Advisory Fee $ Portfolio Turnover 34 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 41.8   Technology Hardware, Storage & Peripherals 20.7   Software 20.6   IT Services 4.4   Communications Equipment 2.5   Ground Transportation 2.2   Broadline Retail 1.5   Hotels, Restaurants & Leisure 0.6   Entertainment 0.5   Others 0.9       Common Stocks 94.5 Preferred Stocks 1.2 Preferred Securities 0.0 Bonds 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) United States 91.2 China 4.5 Taiwan 2.0 Netherlands 1.2 Canada 1.0 India 0.1 Korea (South) 0.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 20.1     Apple Inc 19.2     Microsoft Corp 10.7     NXP Semiconductors NV 4.4     ON Semiconductor Corp 4.4     Marvell Technology Inc 3.9     Servicenow Inc 3.6     Okta Inc Class A 2.9     GlobalFoundries Inc 2.8     Cisco Systems Inc 2.5       74.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1776">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1777">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1778">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Semiconductors Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Semiconductors Fund
Class Name	Fidelity Advisor® Semiconductors Fund Class A
Trading Symbol	FELAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Semiconductors Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.96 %
Expenses Paid, Amount	$ 115
Expense Ratio, Percent	0.96%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1795">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A   $9,425 $10,448   $12,585   $16,514   $21,031   $23,171   $30,274   $49,179   $47,602   $71,075   $99,162   MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index   $10,000 $10,481   $13,028   $17,291   $21,750   $23,948   $32,281   $51,070   $48,484   $72,407   $107,971   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   31.49% 32.17% 25.79% Class A (without 5.75% sales charge) 39.52% 33.75% 26.53% MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index 49.12% 35.15% 26.86% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 2,698,217,311
Holdings Count | shares	45
Advisory Fees Paid, Amount	$ 11,387,050
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Semiconductors & Semiconductor Equipment 92.7   Technology Hardware, Storage & Peripherals 2.4   Electronic Equipment, Instruments & Components 0.1   Financial Services 0.0   Metals & Mining 0.0       Common Stocks 95.0 Preferred Stocks 0.2 Preferred Securities 0.0 Short-Term Investments and Net Other Assets (Liabilities) 4.8 ASSET ALLOCATION (% of Fund's net assets) United States 79.9 Taiwan 7.1 China 5.6 Netherlands 5.0 Israel 1.7 Japan 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 25.8     ON Semiconductor Corp 7.3     Taiwan Semiconductor Manufacturing Co Ltd ADR 6.1     NXP Semiconductors NV 5.6     Micron Technology Inc 5.4     ASML Holding NV depository receipt 5.0     GlobalFoundries Inc 4.8     Lam Research Corp 4.8     Broadcom Inc 4.3     Advanced Micro Devices Inc 3.8       72.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing and bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing and bookkeeping).The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1809">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1810">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1811">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Real Estate Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity Advisor® Real Estate Fund
Class Name	Fidelity Advisor® Real Estate Fund Class I
Trading Symbol	FHEIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity Advisor® Real Estate Fund for the period August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.79 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.79%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1828">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?      CUMULATIVE PERFORMANCE July 31, 2014 through July 31, 2024. Initial investment of $10,000. Class I   $10,000 $10,999   $13,046   $12,347   $12,698   $13,958   $12,982   $16,961   $16,041   $14,208   $15,685   MSCI US IMI Real Estate 25/50 Linked Index   $10,000 $11,129   $13,457   $12,695   $13,185   $14,621   $12,238   $16,556   $15,854   $14,323   $15,860   S&P 500® Index   $10,000 $11,121   $11,745   $13,629   $15,843   $17,108   $19,153   $26,134   $24,921   $28,165   $34,403     2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:     1 Year 5 Year 10 Year Class I 10.40% 2.36% 4.60% MSCI US IMI Real Estate 25/50 Linked Index 10.73% 1.64% 4.72% S&P 500® Index 22.15% 15.00% 13.15%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 237,005,518
Holdings Count | shares	35
Advisory Fees Paid, Amount	$ 1,374,363
Investment Company Portfolio Turnover	24%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of July 31, 2024) KEY FACTS Fund Size $ Number of Holdings 35 Total Advisory Fee $ Portfolio Turnover 24 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 37.6   Industrial REITs 16.2   Residential REITs 14.2   Retail REITs 10.8   Health Care REITs 9.1   Real Estate Management & Development 7.7   Hotel & Resort REITs 2.5   Office REITs 1.2       Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 9.6     Equinix Inc 7.8     Crown Castle Inc 7.5     CBRE Group Inc Class A 6.3     American Tower Corp 5.9     Ventas Inc 5.8     CubeSmart 5.4     Digital Realty Trust Inc 3.5     Welltower Inc 3.3     Mid-America Apartment Communities Inc 3.3       58.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since August 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by September 28, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B1842">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1843">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1844">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)

12 Months Ended

60 Months Ended

84 Months Ended

108 Months Ended

120 Months Ended

132 Months Ended

Jul. 31, 2024

Jul. 31, 2024

Jul. 31, 2024

Jul. 31, 2024

Jul. 31, 2024

Jul. 31, 2024

Jul. 31, 2023

Jul. 31, 2022

Jul. 31, 2021

Jul. 31, 2020

Jul. 31, 2019

Jul. 31, 2018

Jul. 31, 2017

Jul. 31, 2016

Jul. 31, 2015

Jul. 31, 2014

C000172333_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

17.42%

C000172333_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.43%

C000172333_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.99%

C000205002_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205002_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205002_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000172331_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

17.42%

C000172331_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.43%

C000172331_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.99%

C000014543_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014543_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014543_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014571_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014571_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014571_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014528_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014528_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014528_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014556_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014556_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014556_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205000_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205000_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205000_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014569_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014569_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014569_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000172332_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

17.42%

C000172332_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.43%

C000172332_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.99%

C000014521_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014521_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014521_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014557_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014557_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014557_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014558_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014558_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014558_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014567_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014567_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014567_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014564_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014564_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014564_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014554_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014554_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014554_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014551_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014551_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014551_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014533_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014533_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014533_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014561_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014561_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014561_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205003_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205003_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205003_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000205009_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

17.42%

C000205009_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.43%

C000205009_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.14%

C000014553_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014553_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014553_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014522_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014522_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014522_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014562_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014562_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014562_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014519_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014519_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014519_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014538_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014538_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014538_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014572_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014572_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014572_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014539_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014539_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014539_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014537_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014537_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014537_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014532_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014532_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014532_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000204999_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000204999_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000204999_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000205001_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205001_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205001_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000172330_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

17.42%

C000172330_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.43%

C000172330_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.99%

C000014563_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014563_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014563_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205005_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205005_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205005_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014552_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014552_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014552_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205006_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205006_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205006_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014559_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014559_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014559_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205008_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205008_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205008_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014523_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014523_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014523_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014524_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014524_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014524_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014536_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014536_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014536_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205007_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205007_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205007_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014568_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014568_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014568_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014534_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014534_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014534_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014542_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014542_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014542_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014527_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014527_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014527_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000205004_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000205004_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000205004_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

13.42%

C000014529_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014529_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014529_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014531_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014531_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014531_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014541_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014541_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014541_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014566_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014566_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014566_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014526_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014526_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014526_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014549_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014549_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014549_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000014573_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.15%

C000014573_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

15%

C000014573_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.15%

C000172333_LG_ClassMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-E500">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000172333_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

$ 10,000

C000172333_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

$ 9,920

C000172333_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

$ 10,563

C000172333_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

$ 11,466

C000172333_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

$ 10,962

C000172333_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

$ 14,341

C000172333_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

$ 13,033

C000172333_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

$ 12,040

C000172333_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 13,150

$ 13,150

$ 13,150

$ 13,150

$ 13,150

$ 13,150

C000172333_LG_1_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

FTSE® EPRA℠/NAREIT® Developed Index</span>" id="sjs-E530">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">FTSE® EPRA℠/NAREIT® Developed Index&lt;/span>

C000172333_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172333_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,960

C000172333_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,524

C000172333_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,380

C000172333_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,855

C000172333_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,420

C000172333_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,176

C000172333_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,285

C000172333_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,184

12,184

12,184

$ 12,184

12,184

12,184

C000172333_LG_2_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-E560">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000172333_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172333_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,606

C000172333_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,928

C000172333_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,363

C000172333_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,382

C000172333_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,214

C000172333_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,256

C000172333_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,556

C000172333_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,962

$ 22,962

$ 22,962

$ 22,962

22,962

22,962

C000172333_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.22%

C000172333_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.78%

C000172333_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

3.49%

C000172333_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.97%

C000172333_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.38%

C000172333_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.51%

C000205002_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D608">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205002_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205002_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,336

C000205002_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,040

C000205002_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,643

C000205002_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,658

C000205002_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

15,377

C000205002_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,529

$ 17,529

$ 17,529

17,529

17,529

17,529

C000205002_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Consumer Discretionary 25-50 Index</span>" id="sjs-D632">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Consumer Discretionary 25-50 Index&lt;/span>

C000205002_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205002_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,388

C000205002_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,652

C000205002_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,604

C000205002_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,041

C000205002_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,671

C000205002_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

19,618

19,618

$ 19,618

19,618

19,618

19,618

C000205002_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D656">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205002_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205002_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205002_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205002_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205002_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205002_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205002_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

C000205002_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.99%

C000205002_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.14%

C000205002_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

10.10%

C000205002_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.02%

C000205002_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.56%

C000205002_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

12.25%

C000172331_LG_ClassMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-E698">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000172331_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,650

C000172331_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,525

C000172331_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,087

C000172331_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,900

C000172331_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,369

C000172331_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,501

C000172331_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,216

C000172331_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,228

C000172331_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,189

$ 12,189

12,189

$ 12,189

12,189

12,189

C000172331_LG_1_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

FTSE® EPRA℠/NAREIT® Developed Index</span>" id="sjs-E728">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">FTSE® EPRA℠/NAREIT® Developed Index&lt;/span>

C000172331_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172331_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,960

C000172331_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,524

C000172331_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,380

C000172331_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,855

C000172331_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,420

C000172331_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,176

C000172331_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,285

C000172331_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,184

12,184

12,184

$ 12,184

12,184

12,184

C000172331_LG_2_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-E758">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000172331_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172331_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,606

C000172331_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,928

C000172331_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,363

C000172331_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,382

C000172331_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,214

C000172331_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,256

C000172331_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,556

C000172331_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,962

$ 22,962

22,962

$ 22,962

22,962

$ 22,962

C000172331_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.76%

C000172331_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.53%

C000172331_ClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

2.51%

C000172331_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.56%

C000172331_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.26%

C000172331_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

2.97%

C000172331_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.97%

C000172331_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.38%

C000172331_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.51%

C000014543_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G815">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014543_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

$ 10,000

C000014543_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

$ 10,845

C000014543_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,423

C000014543_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,898

C000014543_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,001

C000014543_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,348

C000014543_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,379

C000014543_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,552

C000014543_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

18,076

C000014543_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,514

C000014543_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 27,315

$ 27,315

27,315

27,315

27,315

$ 27,315

C000014543_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Industrials 25-50 Index</span>" id="sjs-G851">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Industrials 25-50 Index&lt;/span>

C000014543_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014543_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,697

C000014543_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,622

C000014543_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,810

C000014543_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,836

C000014543_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,344

C000014543_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,397

C000014543_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,708

C000014543_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,070

C000014543_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,150

C000014543_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,881

29,881

29,881

29,881

29,881

$ 29,881

C000014543_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G887">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014543_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014543_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014543_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014543_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014543_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014543_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014543_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014543_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014543_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014543_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014543_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014543_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.97%

C000014543_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.22%

C000014543_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.57%

C000014543_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.81%

C000014543_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.83%

C000014543_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.57%

C000014571_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G941">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014571_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014571_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,885

C000014571_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,779

C000014571_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,970

C000014571_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,181

C000014571_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,244

C000014571_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,191

C000014571_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,770

C000014571_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,770

C000014571_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,041

C000014571_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,358

$ 14,358

14,358

14,358

$ 14,358

$ 14,358

C000014571_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI US IMI Real Estate 25/50 Linked Index</span>" id="sjs-G977">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI US IMI Real Estate 25/50 Linked Index&lt;/span>

C000014571_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014571_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,129

C000014571_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,457

C000014571_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,695

C000014571_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,185

C000014571_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,621

C000014571_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,238

C000014571_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,556

C000014571_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,854

C000014571_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,323

C000014571_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,860

15,860

15,860

15,860

15,860

$ 15,860

C000014571_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1013">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014571_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014571_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014571_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014571_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014571_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014571_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014571_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014571_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014571_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014571_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014571_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014571_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.30%

C000014571_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.33%

C000014571_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.68%

C000014571_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.30%

C000014571_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.33%

C000014571_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.68%

C000014571_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.73%

C000014571_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.64%

C000014571_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.72%

C000014528_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G1076">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014528_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014528_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,130

C000014528_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,048

C000014528_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

16,898

C000014528_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,249

C000014528_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

22,855

C000014528_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

34,104

C000014528_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

49,513

C000014528_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

41,313

C000014528_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

54,052

C000014528_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 68,871

$ 68,871

68,871

68,871

$ 68,871

$ 68,871

C000014528_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Information Technology 25-50 Index</span>" id="sjs-G1112">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Information Technology 25-50 Index&lt;/span>

C000014528_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014528_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,306

C000014528_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,261

C000014528_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

15,808

C000014528_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,247

C000014528_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,485

C000014528_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,225

C000014528_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,360

C000014528_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

41,091

C000014528_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

50,982

C000014528_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

64,137

64,137

64,137

64,137

64,137

$ 64,137

C000014528_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1148">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014528_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014528_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014528_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014528_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014528_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014528_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014528_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014528_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014528_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014528_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014528_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014528_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.42%

C000014528_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.68%

C000014528_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

21.28%

C000014528_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.80%

C000014528_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.25%

C000014528_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.42%

C000014556_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G1202">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014556_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014556_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,045

C000014556_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,285

C000014556_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,966

C000014556_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,429

C000014556_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,616

C000014556_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,308

C000014556_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,769

C000014556_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

18,952

C000014556_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,743

C000014556_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,701

$ 25,701

25,701

25,701

$ 25,701

$ 25,701

C000014556_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Financials 5% Capped Linked Index</span>" id="sjs-G1238">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Financials 5% Capped Linked Index&lt;/span>

C000014556_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014556_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,434

C000014556_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,272

C000014556_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,794

C000014556_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,593

C000014556_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,130

C000014556_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,510

C000014556_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,803

C000014556_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,734

C000014556_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

22,906

C000014556_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,316

29,316

29,316

29,316

29,316

$ 29,316

C000014556_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1274">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014556_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014556_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014556_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014556_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014556_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014556_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014556_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014556_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014556_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014556_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014556_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014556_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.23%

C000014556_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.62%

C000014556_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.90%

C000014556_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

29.23%

C000014556_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.62%

C000014556_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.90%

C000014556_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.98%

C000014556_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.35%

C000014556_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.36%

C000205000_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D1337">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205000_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205000_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,288

C000205000_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,370

C000205000_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,342

C000205000_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

18,664

C000205000_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

24,449

C000205000_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 31,190

$ 31,190

$ 31,190

31,190

$ 31,190

31,190

C000205000_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Information Technology 25-50 Index</span>" id="sjs-D1361">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Information Technology 25-50 Index&lt;/span>

C000205000_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205000_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,841

C000205000_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,876

C000205000_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,939

C000205000_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

18,969

C000205000_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

23,535

C000205000_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,607

29,607

$ 29,607

29,607

29,607

29,607

C000205000_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D1385">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205000_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205000_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205000_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205000_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205000_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205000_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205000_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205000_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.57%

C000205000_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.83%

C000205000_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

21.53%

C000205000_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.80%

C000205000_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.25%

C000205000_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

20.45%

C000014569_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G1427">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014569_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014569_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,340

C000014569_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,235

C000014569_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,546

C000014569_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

11,841

C000014569_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

12,980

C000014569_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,044

C000014569_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,703

C000014569_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,816

C000014569_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,082

C000014569_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,403

$ 14,403

14,403

14,403

14,403

$ 14,403

C000014569_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI US IMI Real Estate 25/50 Linked Index</span>" id="sjs-G1463">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI US IMI Real Estate 25/50 Linked Index&lt;/span>

C000014569_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014569_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,129

C000014569_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,457

C000014569_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,695

C000014569_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,185

C000014569_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,621

C000014569_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,238

C000014569_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,556

C000014569_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,854

C000014569_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,323

C000014569_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,860

15,860

15,860

15,860

15,860

$ 15,860

C000014569_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1499">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014569_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014569_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014569_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014569_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014569_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014569_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014569_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014569_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014569_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014569_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014569_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

$ 34,403

C000014569_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.76%

C000014569_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

0.90%

C000014569_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.72%

C000014569_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.10%

C000014569_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.10%

C000014569_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.33%

C000014569_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.73%

C000014569_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.64%

C000014569_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.72%

C000172332_LG_ClassMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-E1562">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000172332_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172332_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,823

C000172332_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,352

C000172332_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,130

C000172332_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,539

C000172332_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,647

C000172332_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,287

C000172332_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,239

C000172332_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,145

$ 12,145

12,145

$ 12,145

$ 12,145

12,145

C000172332_LG_1_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

FTSE® EPRA℠/NAREIT® Developed Index</span>" id="sjs-E1592">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">FTSE® EPRA℠/NAREIT® Developed Index&lt;/span>

C000172332_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172332_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,960

C000172332_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,524

C000172332_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,380

C000172332_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,855

C000172332_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,420

C000172332_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,176

C000172332_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,285

C000172332_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,184

12,184

12,184

$ 12,184

12,184

12,184

C000172332_LG_2_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-E1622">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000172332_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172332_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,606

C000172332_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,928

C000172332_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,363

C000172332_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,382

C000172332_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,214

C000172332_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,256

C000172332_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,556

C000172332_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,962

$ 22,962

22,962

$ 22,962

22,962

$ 22,962

C000172332_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.06%

C000172332_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.76%

C000172332_ClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

2.47%

C000172332_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.06%

C000172332_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.76%

C000172332_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

2.47%

C000172332_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.97%

C000172332_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.38%

C000172332_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.51%

C000014521_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G1679">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014521_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014521_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,843

C000014521_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,239

C000014521_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,752

C000014521_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,392

C000014521_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,403

C000014521_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,299

C000014521_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,575

C000014521_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,750

C000014521_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,141

C000014521_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 23,441

$ 23,441

23,441

23,441

23,441

$ 23,441

C000014521_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Biotechnology 25-50 Index</span>" id="sjs-G1715">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Biotechnology 25-50 Index&lt;/span>

C000014521_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014521_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,191

C000014521_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,163

C000014521_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,140

C000014521_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,791

C000014521_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,066

C000014521_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

18,593

C000014521_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,002

C000014521_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,500

C000014521_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,317

C000014521_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

27,056

27,056

27,056

27,056

27,056

$ 27,056

C000014521_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1751">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014521_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014521_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014521_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014521_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014521_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014521_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014521_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014521_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014521_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014521_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014521_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014521_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.15%

C000014521_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.48%

C000014521_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.89%

C000014521_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.15%

C000014521_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.48%

C000014521_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.89%

C000014521_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.92%

C000014521_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.98%

C000014521_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.47%

C000014557_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G1814">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014557_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014557_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,710

C000014557_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,021

C000014557_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,689

C000014557_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,192

C000014557_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,443

C000014557_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,222

C000014557_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,736

C000014557_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,019

C000014557_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,757

C000014557_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,665

$ 25,665

25,665

25,665

$ 25,665

$ 25,665

C000014557_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Financials 5% Capped Linked Index</span>" id="sjs-G1850">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Financials 5% Capped Linked Index&lt;/span>

C000014557_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014557_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,434

C000014557_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,272

C000014557_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,794

C000014557_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,593

C000014557_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,130

C000014557_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,510

C000014557_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,803

C000014557_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,734

C000014557_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

22,906

C000014557_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,316

29,316

29,316

29,316

29,316

$ 29,316

C000014557_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G1886">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014557_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014557_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014557_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014557_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014557_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014557_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014557_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014557_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014557_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014557_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014557_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014557_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.36%

C000014557_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.39%

C000014557_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.88%

C000014557_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

29.90%

C000014557_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.19%

C000014557_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.28%

C000014557_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.98%

C000014557_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.35%

C000014557_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.36%

C000014558_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G1949">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014558_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014558_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,161

C000014558_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,504

C000014558_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,377

C000014558_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,040

C000014558_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,395

C000014558_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

13,100

C000014558_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

21,263

C000014558_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

20,597

C000014558_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,518

C000014558_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 28,086

$ 28,086

28,086

28,086

$ 28,086

$ 28,086

C000014558_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Financials 5% Capped Linked Index</span>" id="sjs-G1985">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Financials 5% Capped Linked Index&lt;/span>

C000014558_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014558_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,434

C000014558_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,272

C000014558_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,794

C000014558_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,593

C000014558_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,130

C000014558_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,510

C000014558_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,803

C000014558_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,734

C000014558_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

22,906

C000014558_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,316

29,316

29,316

29,316

29,316

$ 29,316

C000014558_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2021">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014558_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014558_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014558_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014558_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014558_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014558_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014558_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014558_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014558_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014558_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014558_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014558_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

30.52%

C000014558_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.78%

C000014558_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.88%

C000014558_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.98%

C000014558_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.35%

C000014558_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.36%

C000014567_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G2075">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014567_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014567_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

6,843

C000014567_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

6,910

C000014567_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

6,813

C000014567_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,431

C000014567_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

6,299

C000014567_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

3,801

C000014567_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

5,563

C000014567_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,494

C000014567_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,979

C000014567_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,202

$ 12,202

12,202

12,202

$ 12,202

$ 12,202

C000014567_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Energy 25-50 Index</span>" id="sjs-G2111">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Energy 25-50 Index&lt;/span>

C000014567_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014567_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,208

C000014567_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,220

C000014567_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

7,200

C000014567_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,707

C000014567_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,019

C000014567_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,258

C000014567_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

6,393

C000014567_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,594

C000014567_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,299

C000014567_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,570

13,570

13,570

13,570

13,570

$ 13,570

C000014567_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2147">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014567_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014567_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014567_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014567_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014567_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014567_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014567_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014567_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014567_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014567_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014567_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014567_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.25%

C000014567_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.33%

C000014567_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.01%

C000014567_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.14%

C000014567_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.14%

C000014567_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.37%

C000014567_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.33%

C000014567_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.09%

C000014567_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.10%

C000014564_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G2210">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014564_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014564_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

6,699

C000014564_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

6,783

C000014564_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

6,705

C000014564_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,319

C000014564_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

6,234

C000014564_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

3,769

C000014564_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

5,532

C000014564_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,467

C000014564_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,976

C000014564_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,232

$ 12,232

12,232

12,232

$ 12,232

$ 12,232

C000014564_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Energy 25-50 Index</span>" id="sjs-G2246">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Energy 25-50 Index&lt;/span>

C000014564_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014564_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,208

C000014564_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,220

C000014564_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

7,200

C000014564_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,707

C000014564_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,019

C000014564_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,258

C000014564_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

6,393

C000014564_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,594

C000014564_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,299

C000014564_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,570

13,570

13,570

13,570

13,570

$ 13,570

C000014564_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2282">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014564_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014564_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014564_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014564_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014564_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014564_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014564_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014564_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014564_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014564_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014564_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014564_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.03%

C000014564_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.08%

C000014564_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.03%

C000014564_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.44%

C000014564_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.43%

C000014564_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.64%

C000014564_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.33%

C000014564_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.09%

C000014564_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.10%

C000014554_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G2345">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014554_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014554_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,489

C000014554_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,844

C000014554_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,499

C000014554_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,014

C000014554_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,301

C000014554_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,135

C000014554_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,639

C000014554_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

18,971

C000014554_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,762

C000014554_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,727

$ 25,727

25,727

25,727

$ 25,727

$ 25,727

C000014554_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Financials 5% Capped Linked Index</span>" id="sjs-G2381">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Financials 5% Capped Linked Index&lt;/span>

C000014554_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014554_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,434

C000014554_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,272

C000014554_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,794

C000014554_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,593

C000014554_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,130

C000014554_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,510

C000014554_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,803

C000014554_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,734

C000014554_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

22,906

C000014554_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,316

29,316

29,316

29,316

29,316

$ 29,316

C000014554_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2417">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014554_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014554_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014554_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014554_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014554_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014554_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014554_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014554_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014554_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014554_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014554_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014554_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.69%

C000014554_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.14%

C000014554_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.91%

C000014554_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

30.18%

C000014554_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.46%

C000014554_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.56%

C000014554_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.98%

C000014554_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.35%

C000014554_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.36%

C000014551_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G2480">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014551_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014551_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,003

C000014551_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,147

C000014551_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,118

C000014551_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,634

C000014551_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,652

C000014551_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

30,685

C000014551_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

49,454

C000014551_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

47,513

C000014551_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

70,942

C000014551_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 98,975

$ 98,975

98,975

98,975

$ 98,975

$ 98,975

C000014551_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index</span>" id="sjs-G2516">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Semiconductors &amp; Semiconductor Equipment 25-50 Index&lt;/span>

C000014551_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014551_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,481

C000014551_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,028

C000014551_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,291

C000014551_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,750

C000014551_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,948

C000014551_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,281

C000014551_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

51,070

C000014551_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

48,484

C000014551_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

72,407

C000014551_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

107,971

107,971

107,971

107,971

107,971

$ 107,971

C000014551_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2552">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014551_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014551_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014551_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014551_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014551_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014551_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014551_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014551_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014551_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014551_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014551_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014551_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

37.46%

C000014551_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

32.74%

C000014551_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.76%

C000014551_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

38.46%

C000014551_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

32.74%

C000014551_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.76%

C000014551_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

49.12%

C000014551_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.15%

C000014551_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.86%

C000014533_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G2615">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014533_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014533_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,235

C000014533_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,648

C000014533_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,833

C000014533_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,133

C000014533_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,835

C000014533_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,628

C000014533_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,020

C000014533_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,444

C000014533_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,156

C000014533_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,715

$ 24,715

24,715

24,715

$ 24,715

$ 24,715

C000014533_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Utilities 25-50 Index</span>" id="sjs-G2651">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Utilities 25-50 Index&lt;/span>

C000014533_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014533_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,922

C000014533_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,519

C000014533_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,434

C000014533_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,013

C000014533_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,419

C000014533_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,988

C000014533_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,183

C000014533_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,242

C000014533_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,712

C000014533_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

24,456

24,456

24,456

24,456

24,456

$ 24,456

C000014533_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2687">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014533_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014533_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014533_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014533_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014533_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014533_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014533_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014533_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014533_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014533_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014533_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014533_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

16.82%

C000014533_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.31%

C000014533_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000014533_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.64%

C000014533_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.02%

C000014533_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.36%

C000014561_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G2741">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014561_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014561_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,304

C000014561_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,907

C000014561_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,940

C000014561_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,384

C000014561_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,708

C000014561_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,413

C000014561_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

23,253

C000014561_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

20,332

C000014561_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,087

C000014561_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,496

$ 22,496

22,496

22,496

$ 22,496

$ 22,496

C000014561_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Health Care 25-50 Index</span>" id="sjs-G2777">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Health Care 25-50 Index&lt;/span>

C000014561_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014561_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,063

C000014561_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,726

C000014561_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,917

C000014561_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,068

C000014561_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,693

C000014561_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,997

C000014561_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

25,628

C000014561_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,807

C000014561_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,460

C000014561_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

28,709

28,709

28,709

28,709

28,709

$ 28,709

C000014561_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G2813">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014561_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014561_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014561_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014561_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014561_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014561_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014561_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014561_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014561_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014561_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014561_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014561_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.90%

C000014561_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.13%

C000014561_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.45%

C000014561_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.90%

C000014561_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.13%

C000014561_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.45%

C000014561_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.76%

C000014561_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.45%

C000014561_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.12%

C000205003_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D2876">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205003_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205003_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,808

C000205003_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,199

C000205003_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

12,525

C000205003_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,596

C000205003_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,816

C000205003_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,564

$ 17,564

$ 17,564

17,564

$ 17,564

17,564

C000205003_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Industrials 25-50 Index</span>" id="sjs-D2900">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Industrials 25-50 Index&lt;/span>

C000205003_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205003_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,039

C000205003_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,457

C000205003_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,947

C000205003_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,942

C000205003_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

15,447

C000205003_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

18,353

18,353

$ 18,353

18,353

18,353

18,353

C000205003_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D2924">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205003_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205003_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205003_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205003_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205003_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205003_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205003_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

20,843

C000205003_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.12%

C000205003_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.36%

C000205003_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

10.14%

C000205003_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.81%

C000205003_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.83%

C000205003_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.97%

C000205009_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D2966">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205009_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205009_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,017

C000205009_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,544

C000205009_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,820

C000205009_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,587

C000205009_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,646

C000205009_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,734

$ 12,734

$ 12,734

12,734

12,734

12,734

C000205009_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

FTSE® EPRA℠/NAREIT® Developed Index</span>" id="sjs-D2990">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">FTSE® EPRA℠/NAREIT® Developed Index&lt;/span>

C000205009_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205009_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,066

C000205009_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,583

C000205009_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,050

C000205009_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,840

C000205009_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,973

C000205009_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

11,848

11,848

$ 11,848

11,848

11,848

11,848

C000205009_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-D3014">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000205009_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205009_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,222

C000205009_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,001

C000205009_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,698

C000205009_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,199

C000205009_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,959

C000205009_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,565

$ 17,565

$ 17,565

17,565

17,565

$ 17,565

C000205009_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.34%

C000205009_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.94%

C000205009_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

4.23%

C000205009_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.97%

C000205009_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.38%

C000205009_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.95%

C000014553_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G3056">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014553_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014553_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,117

C000014553_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,435

C000014553_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,683

C000014553_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

22,589

C000014553_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

24,951

C000014553_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,705

C000014553_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

53,262

C000014553_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

51,688

C000014553_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

77,383

C000014553_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 108,234

$ 108,234

108,234

108,234

108,234

$ 108,234

C000014553_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index</span>" id="sjs-G3092">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Semiconductors &amp; Semiconductor Equipment 25-50 Index&lt;/span>

C000014553_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014553_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,481

C000014553_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,028

C000014553_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,291

C000014553_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,750

C000014553_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,948

C000014553_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,281

C000014553_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

51,070

C000014553_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

48,484

C000014553_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

72,407

C000014553_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

107,971

107,971

107,971

107,971

107,971

$ 107,971

C000014553_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3128">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014553_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014553_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014553_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014553_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014553_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014553_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014553_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014553_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014553_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014553_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014553_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014553_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

39.87%

C000014553_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

34.11%

C000014553_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.89%

C000014553_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

49.12%

C000014553_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.15%

C000014553_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.86%

C000014522_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G3182">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014522_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014522_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,360

C000014522_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,944

C000014522_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,463

C000014522_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,127

C000014522_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,217

C000014522_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,135

C000014522_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,480

C000014522_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,745

C000014522_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,087

C000014522_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 23,308

$ 23,308

23,308

23,308

$ 23,308

$ 23,308

C000014522_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Biotechnology 25-50 Index</span>" id="sjs-G3218">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Biotechnology 25-50 Index&lt;/span>

C000014522_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014522_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,191

C000014522_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,163

C000014522_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,140

C000014522_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,791

C000014522_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,066

C000014522_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

18,593

C000014522_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,002

C000014522_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,500

C000014522_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,317

C000014522_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

27,056

27,056

27,056

27,056

27,056

$ 27,056

C000014522_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3254">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014522_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014522_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014522_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014522_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014522_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014522_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014522_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014522_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014522_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014522_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014522_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014522_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.36%

C000014522_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.22%

C000014522_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.83%

C000014522_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.87%

C000014522_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.01%

C000014522_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.22%

C000014522_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.92%

C000014522_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.98%

C000014522_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.47%

C000014562_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G3317">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014562_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014562_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,901

C000014562_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,604

C000014562_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,669

C000014562_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,135

C000014562_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,530

C000014562_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,287

C000014562_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

23,219

C000014562_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

20,405

C000014562_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,109

C000014562_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,466

$ 22,466

22,466

22,466

$ 22,466

$ 22,466

C000014562_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Health Care 25-50 Index</span>" id="sjs-G3353">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Health Care 25-50 Index&lt;/span>

C000014562_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014562_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,063

C000014562_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,726

C000014562_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,917

C000014562_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,068

C000014562_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,693

C000014562_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,997

C000014562_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

25,628

C000014562_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,807

C000014562_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,460

C000014562_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

28,709

28,709

28,709

28,709

28,709

$ 28,709

C000014562_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3389">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014562_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014562_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014562_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014562_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014562_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014562_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014562_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014562_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014562_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014562_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014562_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014562_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.71%

C000014562_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.90%

C000014562_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.43%

C000014562_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.43%

C000014562_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.66%

C000014562_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.82%

C000014562_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.76%

C000014562_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.45%

C000014562_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.12%

C000014519_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G3452">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014519_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014519_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,048

C000014519_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,752

C000014519_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,291

C000014519_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,975

C000014519_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,113

C000014519_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,047

C000014519_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,440

C000014519_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,756

C000014519_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,148

C000014519_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 23,450

$ 23,450

23,450

23,450

$ 23,450

$ 23,450

C000014519_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Biotechnology 25-50 Index</span>" id="sjs-G3488">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Biotechnology 25-50 Index&lt;/span>

C000014519_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014519_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,191

C000014519_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,163

C000014519_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,140

C000014519_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,791

C000014519_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,066

C000014519_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

18,593

C000014519_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,002

C000014519_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,500

C000014519_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,317

C000014519_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

27,056

27,056

27,056

27,056

27,056

$ 27,056

C000014519_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3524">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014519_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014519_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014519_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014519_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014519_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014519_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014519_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014519_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014519_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014519_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014519_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014519_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

21.78%

C000014519_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.01%

C000014519_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.90%

C000014519_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

29.21%

C000014519_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.33%

C000014519_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.54%

C000014519_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.92%

C000014519_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.98%

C000014519_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.47%

C000014538_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G3587">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014538_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014538_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,260

C000014538_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,245

C000014538_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,502

C000014538_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,669

C000014538_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,853

C000014538_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

20,771

C000014538_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

28,675

C000014538_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,502

C000014538_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

26,428

C000014538_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 30,087

$ 30,087

30,087

30,087

$ 30,087

$ 30,087

C000014538_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Consumer Discretionary 25-50 Index</span>" id="sjs-G3623">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Consumer Discretionary 25-50 Index&lt;/span>

C000014538_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014538_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,215

C000014538_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,366

C000014538_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,162

C000014538_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

17,199

C000014538_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

18,581

C000014538_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

22,632

C000014538_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

33,278

C000014538_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

28,694

C000014538_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

31,608

C000014538_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

35,092

35,092

35,092

35,092

35,092

$ 35,092

C000014538_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3659">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014538_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014538_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014538_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014538_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014538_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014538_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014538_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014538_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014538_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014538_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014538_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014538_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.84%

C000014538_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11%

C000014538_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.64%

C000014538_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.02%

C000014538_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.56%

C000014538_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.38%

C000014572_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G3713">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014572_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014572_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,563

C000014572_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,467

C000014572_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,740

C000014572_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,014

C000014572_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,138

C000014572_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,163

C000014572_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,828

C000014572_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,906

C000014572_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,137

C000014572_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,431

$ 14,431

14,431

14,431

$ 14,431

$ 14,431

C000014572_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI US IMI Real Estate 25/50 Linked Index</span>" id="sjs-G3749">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI US IMI Real Estate 25/50 Linked Index&lt;/span>

C000014572_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014572_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,129

C000014572_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,457

C000014572_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,695

C000014572_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,185

C000014572_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,621

C000014572_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,238

C000014572_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,556

C000014572_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,854

C000014572_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,323

C000014572_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,860

15,860

15,860

15,860

15,860

$ 15,860

C000014572_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3785">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014572_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014572_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014572_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014572_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014572_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014572_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014572_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014572_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014572_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014572_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014572_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014572_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.01%

C000014572_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.17%

C000014572_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000014572_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.85%

C000014572_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.90%

C000014572_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.11%

C000014572_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.73%

C000014572_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.64%

C000014572_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.72%

C000014539_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G3848">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014539_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014539_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,195

C000014539_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,709

C000014539_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,060

C000014539_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,985

C000014539_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,274

C000014539_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

13,335

C000014539_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,086

C000014539_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,677

C000014539_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,792

C000014539_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,065

$ 25,065

25,065

25,065

$ 25,065

$ 25,065

C000014539_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Industrials 25-50 Index</span>" id="sjs-G3884">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Industrials 25-50 Index&lt;/span>

C000014539_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014539_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,697

C000014539_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,622

C000014539_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,810

C000014539_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,836

C000014539_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,344

C000014539_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,397

C000014539_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,708

C000014539_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,070

C000014539_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,150

C000014539_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,881

29,881

29,881

29,881

29,881

$ 29,881

C000014539_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G3920">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014539_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014539_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014539_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014539_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014539_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014539_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014539_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014539_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014539_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014539_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014539_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014539_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

19.36%

C000014539_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.60%

C000014539_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.62%

C000014539_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.64%

C000014539_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.92%

C000014539_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.28%

C000014539_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.81%

C000014539_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.83%

C000014539_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.57%

C000014537_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G3983">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014537_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014537_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,765

C000014537_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,686

C000014537_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,810

C000014537_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,728

C000014537_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,760

C000014537_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,391

C000014537_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,628

C000014537_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,706

C000014537_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

24,282

C000014537_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 27,493

$ 27,493

27,493

27,493

$ 27,493

$ 27,493

C000014537_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Consumer Discretionary 25-50 Index</span>" id="sjs-G4019">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Consumer Discretionary 25-50 Index&lt;/span>

C000014537_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014537_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,215

C000014537_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,366

C000014537_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,162

C000014537_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

17,199

C000014537_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

18,581

C000014537_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

22,632

C000014537_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

33,278

C000014537_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

28,694

C000014537_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

31,608

C000014537_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

35,092

35,092

35,092

35,092

35,092

$ 35,092

C000014537_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G4055">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014537_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014537_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014537_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014537_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014537_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014537_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014537_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014537_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014537_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014537_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014537_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014537_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.26%

C000014537_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.62%

C000014537_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.64%

C000014537_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.23%

C000014537_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.41%

C000014537_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.04%

C000014537_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.02%

C000014537_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.56%

C000014537_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.38%

C000014532_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G4118">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014532_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014532_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

9,816

C000014532_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,111

C000014532_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,167

C000014532_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,327

C000014532_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,844

C000014532_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,575

C000014532_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,707

C000014532_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,776

C000014532_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,411

C000014532_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,554

$ 22,554

22,554

22,554

$ 22,554

$ 22,554

C000014532_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Utilities 25-50 Index</span>" id="sjs-G4154">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Utilities 25-50 Index&lt;/span>

C000014532_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014532_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,922

C000014532_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,519

C000014532_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,434

C000014532_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,013

C000014532_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,419

C000014532_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,988

C000014532_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,183

C000014532_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,242

C000014532_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,712

C000014532_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

24,456

24,456

24,456

24,456

24,456

$ 24,456

C000014532_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G4190">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014532_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014532_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014532_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014532_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014532_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014532_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014532_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014532_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014532_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014532_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014532_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014532_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.13%

C000014532_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.95%

C000014532_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.47%

C000014532_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

16.19%

C000014532_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.73%

C000014532_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.86%

C000014532_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.64%

C000014532_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.02%

C000014532_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.36%

C000204999_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D4253">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000204999_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000204999_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,217

C000204999_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,031

C000204999_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,774

C000204999_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,207

C000204999_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,965

C000204999_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,814

$ 16,814

$ 16,814

16,814

$ 16,814

16,814

C000204999_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Biotechnology 25-50 Index</span>" id="sjs-D4277">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Biotechnology 25-50 Index&lt;/span>

C000204999_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000204999_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

8,683

C000204999_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,477

C000204999_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,581

C000204999_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,037

C000204999_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,159

C000204999_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

16,701

16,701

$ 16,701

16,701

16,701

16,701

C000204999_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D4301">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000204999_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000204999_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000204999_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000204999_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000204999_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000204999_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000204999_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

20,843

C000204999_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

29.69%

C000204999_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.77%

C000204999_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

9.32%

C000204999_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.92%

C000204999_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.98%

C000204999_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

9.19%

C000205001_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D4343">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205001_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205001_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,904

C000205001_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,778

C000205001_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

12,439

C000205001_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,824

C000205001_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,644

C000205001_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,129

$ 17,129

$ 17,129

17,129

17,129

17,129

C000205001_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Utilities 25-50 Index</span>" id="sjs-D4367">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Utilities 25-50 Index&lt;/span>

C000205001_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205001_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,420

C000205001_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,793

C000205001_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,232

C000205001_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,237

C000205001_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,234

C000205001_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

16,033

16,033

$ 16,033

16,033

16,033

16,033

C000205001_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D4391">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205001_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205001_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205001_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205001_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205001_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205001_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205001_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

C000205001_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

16.97%

C000205001_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.45%

C000205001_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

9.67%

C000205001_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.64%

C000205001_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.02%

C000205001_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

8.43%

C000172330_LG_ClassMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-E4433">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000172330_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,425

C000172330_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,331

C000172330_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

9,906

C000172330_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,722

C000172330_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,228

C000172330_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,356

C000172330_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,101

C000172330_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,156

C000172330_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,146

$ 12,146

12,146

$ 12,146

12,146

12,146

C000172330_LG_1_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

FTSE® EPRA℠/NAREIT® Developed Index</span>" id="sjs-E4463">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">FTSE® EPRA℠/NAREIT® Developed Index&lt;/span>

C000172330_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172330_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,960

C000172330_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,524

C000172330_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,380

C000172330_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,855

C000172330_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,420

C000172330_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,176

C000172330_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,285

C000172330_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,184

12,184

12,184

$ 12,184

12,184

12,184

C000172330_LG_2_AdditionalIndexMember_9YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-E4493">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000172330_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,000

C000172330_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,606

C000172330_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,928

C000172330_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,363

C000172330_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,382

C000172330_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,214

C000172330_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,256

C000172330_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,556

C000172330_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,962

$ 22,962

22,962

$ 22,962

22,962

$ 22,962

C000172330_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.62%

C000172330_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.32%

C000172330_ClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

2.47%

C000172330_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.88%

C000172330_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.52%

C000172330_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

3.23%

C000172330_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.97%

C000172330_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.38%

C000172330_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.51%

C000014563_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G4550">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014563_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014563_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,440

C000014563_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,150

C000014563_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,338

C000014563_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,018

C000014563_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,522

C000014563_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

20,626

C000014563_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

24,959

C000014563_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

22,044

C000014563_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

22,921

C000014563_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,520

$ 24,520

24,520

24,520

24,520

$ 24,520

C000014563_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Health Care 25-50 Index</span>" id="sjs-G4586">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Health Care 25-50 Index&lt;/span>

C000014563_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014563_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,063

C000014563_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,726

C000014563_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,917

C000014563_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,068

C000014563_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,693

C000014563_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,997

C000014563_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

25,628

C000014563_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,807

C000014563_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,460

C000014563_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

28,709

28,709

28,709

28,709

28,709

$ 28,709

C000014563_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G4622">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014563_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014563_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014563_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014563_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014563_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014563_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014563_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014563_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014563_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014563_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014563_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014563_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.98%

C000014563_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.22%

C000014563_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.38%

C000014563_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.76%

C000014563_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.45%

C000014563_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.12%

C000205005_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D4676">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205005_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205005_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,472

C000205005_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,924

C000205005_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,504

C000205005_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,065

C000205005_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,710

C000205005_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 19,231

$ 19,231

$ 19,231

19,231

$ 19,231

19,231

C000205005_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Financials 5% Capped Linked Index</span>" id="sjs-D4700">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Financials 5% Capped Linked Index&lt;/span>

C000205005_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205005_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,457

C000205005_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,858

C000205005_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,921

C000205005_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,268

C000205005_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,983

C000205005_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

17,897

17,897

$ 17,897

17,897

17,897

17,897

C000205005_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D4724">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205005_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205005_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205005_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205005_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205005_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205005_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205005_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205005_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

30.73%

C000205005_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.92%

C000205005_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

11.86%

C000205005_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.98%

C000205005_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.35%

C000205005_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.49%

C000014552_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G4766">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014552_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014552_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,668

C000014552_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,803

C000014552_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

16,735

C000014552_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,245

C000014552_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,337

C000014552_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

30,403

C000014552_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

49,249

C000014552_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

47,558

C000014552_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

70,838

C000014552_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 98,591

$ 98,591

98,591

98,591

98,591

$ 98,591

C000014552_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index</span>" id="sjs-G4802">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Semiconductors &amp; Semiconductor Equipment 25-50 Index&lt;/span>

C000014552_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014552_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,481

C000014552_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,028

C000014552_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,291

C000014552_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,750

C000014552_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,948

C000014552_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,281

C000014552_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

51,070

C000014552_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

48,484

C000014552_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

72,407

C000014552_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

107,971

107,971

107,971

107,971

107,971

$ 107,971

C000014552_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G4838">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014552_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014552_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014552_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014552_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014552_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014552_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014552_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014552_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014552_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014552_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014552_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014552_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

34.31%

C000014552_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

32.45%

C000014552_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.71%

C000014552_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

39.18%

C000014552_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.40%

C000014552_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.16%

C000014552_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

49.12%

C000014552_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.15%

C000014552_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.86%

C000205006_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D4901">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205006_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205006_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,714

C000205006_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,141

C000205006_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,709

C000205006_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,008

C000205006_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,543

C000205006_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,506

$ 14,506

$ 14,506

14,506

$ 14,506

14,506

C000205006_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Health Care 25-50 Index</span>" id="sjs-D4925">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Health Care 25-50 Index&lt;/span>

C000205006_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205006_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,682

C000205006_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,598

C000205006_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,864

C000205006_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,388

C000205006_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,767

C000205006_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

16,651

16,651

$ 16,651

16,651

16,651

16,651

C000205006_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D4949">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205006_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205006_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205006_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205006_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205006_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205006_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205006_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205006_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.11%

C000205006_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.35%

C000205006_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

6.58%

C000205006_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.76%

C000205006_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.45%

C000205006_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

9.14%

C000014559_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G4991">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014559_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014559_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,636

C000014559_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,395

C000014559_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,474

C000014559_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,945

C000014559_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,374

C000014559_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,141

C000014559_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

23,102

C000014559_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

20,352

C000014559_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,109

C000014559_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,519

$ 22,519

22,519

22,519

22,519

$ 22,519

C000014559_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Health Care 25-50 Index</span>" id="sjs-G5027">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Health Care 25-50 Index&lt;/span>

C000014559_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014559_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

13,063

C000014559_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,726

C000014559_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,917

C000014559_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

16,068

C000014559_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,693

C000014559_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,997

C000014559_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

25,628

C000014559_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,807

C000014559_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,460

C000014559_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

28,709

28,709

28,709

28,709

28,709

$ 28,709

C000014559_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5063">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014559_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014559_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014559_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014559_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014559_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014559_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014559_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014559_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014559_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014559_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014559_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014559_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

0.55%

C000014559_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.66%

C000014559_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.46%

C000014559_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.68%

C000014559_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.93%

C000014559_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.10%

C000014559_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.76%

C000014559_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.45%

C000014559_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.12%

C000205008_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D5126">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205008_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205008_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,122

C000205008_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,366

C000205008_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,574

C000205008_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,867

C000205008_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,413

C000205008_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,622

$ 12,622

$ 12,622

12,622

$ 12,622

12,622

C000205008_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI US IMI Real Estate 25/50 Linked Index</span>" id="sjs-D5150">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI US IMI Real Estate 25/50 Linked Index&lt;/span>

C000205008_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205008_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,209

C000205008_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,382

C000205008_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

12,693

C000205008_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,155

C000205008_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,981

C000205008_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,159

12,159

$ 12,159

12,159

12,159

12,159

C000205008_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D5174">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205008_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205008_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205008_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205008_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205008_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205008_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205008_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205008_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.60%

C000205008_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.56%

C000205008_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

4.07%

C000205008_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.73%

C000205008_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.64%

C000205008_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.41%

C000014523_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G5216">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014523_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014523_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

16,000

C000014523_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,469

C000014523_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,139

C000014523_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,982

C000014523_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,100

C000014523_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

18,376

C000014523_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

21,010

C000014523_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,073

C000014523_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,721

C000014523_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,543

$ 25,543

25,543

25,543

25,543

$ 25,543

C000014523_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Biotechnology 25-50 Index</span>" id="sjs-G5252">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Biotechnology 25-50 Index&lt;/span>

C000014523_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014523_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

15,191

C000014523_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,163

C000014523_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,140

C000014523_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,791

C000014523_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,066

C000014523_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

18,593

C000014523_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,002

C000014523_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,500

C000014523_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,317

C000014523_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

27,056

27,056

27,056

27,056

27,056

$ 27,056

C000014523_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5288">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014523_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014523_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014523_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014523_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014523_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014523_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014523_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014523_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014523_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014523_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014523_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014523_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

29.53%

C000014523_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.62%

C000014523_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.83%

C000014523_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.92%

C000014523_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.98%

C000014523_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.47%

C000014524_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G5342">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014524_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014524_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,456

C000014524_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,278

C000014524_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

15,772

C000014524_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

19,783

C000014524_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

21,219

C000014524_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

31,580

C000014524_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,729

C000014524_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

38,057

C000014524_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

49,667

C000014524_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 63,121

$ 63,121

63,121

63,121

$ 63,121

$ 63,121

C000014524_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Information Technology 25-50 Index</span>" id="sjs-G5378">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Information Technology 25-50 Index&lt;/span>

C000014524_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014524_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,306

C000014524_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,261

C000014524_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

15,808

C000014524_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,247

C000014524_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,485

C000014524_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,225

C000014524_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,360

C000014524_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

41,091

C000014524_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

50,982

C000014524_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

64,137

64,137

64,137

64,137

64,137

$ 64,137

C000014524_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5414">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014524_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014524_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014524_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014524_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014524_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014524_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014524_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014524_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014524_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014524_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014524_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014524_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

19.78%

C000014524_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.90%

C000014524_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.23%

C000014524_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.09%

C000014524_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.36%

C000014524_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.95%

C000014524_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.80%

C000014524_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.25%

C000014524_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.42%

C000014536_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G5477">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014536_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014536_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,137

C000014536_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,002

C000014536_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,092

C000014536_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,998

C000014536_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,962

C000014536_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,529

C000014536_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,688

C000014536_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,648

C000014536_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

24,276

C000014536_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 27,562

$ 27,562

27,562

27,562

$ 27,562

$ 27,562

C000014536_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Consumer Discretionary 25-50 Index</span>" id="sjs-G5513">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Consumer Discretionary 25-50 Index&lt;/span>

C000014536_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014536_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,215

C000014536_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,366

C000014536_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,162

C000014536_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

17,199

C000014536_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

18,581

C000014536_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

22,632

C000014536_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

33,278

C000014536_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

28,694

C000014536_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

31,608

C000014536_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

35,092

35,092

35,092

35,092

35,092

$ 35,092

C000014536_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5549">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014536_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014536_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014536_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014536_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014536_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014536_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014536_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014536_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014536_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014536_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014536_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014536_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.70%

C000014536_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.87%

C000014536_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.67%

C000014536_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.70%

C000014536_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.87%

C000014536_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.67%

C000014536_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.02%

C000014536_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.56%

C000014536_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.38%

C000205007_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D5612">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205007_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205007_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,566

C000205007_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,598

C000205007_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

6,781

C000205007_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,652

C000205007_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,563

C000205007_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 15,178

$ 15,178

$ 15,178

15,178

$ 15,178

15,178

C000205007_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Energy 25-50 Index</span>" id="sjs-D5636">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Energy 25-50 Index&lt;/span>

C000205007_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205007_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,981

C000205007_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,842

C000205007_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

7,269

C000205007_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,046

C000205007_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,985

C000205007_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,431

15,431

$ 15,431

15,431

15,431

15,431

C000205007_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D5660">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205007_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205007_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205007_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205007_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205007_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205007_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205007_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205007_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.90%

C000205007_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.94%

C000205007_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

7.42%

C000205007_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.33%

C000205007_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.09%

C000205007_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

7.72%

C000014568_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G5702">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014568_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014568_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,127

C000014568_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,234

C000014568_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

7,172

C000014568_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,924

C000014568_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

6,707

C000014568_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,069

C000014568_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

5,992

C000014568_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,284

C000014568_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,955

C000014568_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 13,358

$ 13,358

13,358

13,358

13,358

$ 13,358

C000014568_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Energy 25-50 Index</span>" id="sjs-G5738">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Energy 25-50 Index&lt;/span>

C000014568_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014568_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,208

C000014568_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,220

C000014568_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

7,200

C000014568_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,707

C000014568_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,019

C000014568_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,258

C000014568_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

6,393

C000014568_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,594

C000014568_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,299

C000014568_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,570

13,570

13,570

13,570

13,570

$ 13,570

C000014568_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5774">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014568_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014568_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014568_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014568_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014568_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014568_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014568_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014568_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014568_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014568_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014568_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014568_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.73%

C000014568_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.77%

C000014568_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.94%

C000014568_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.33%

C000014568_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.09%

C000014568_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.10%

C000014534_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G5828">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014534_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014534_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,523

C000014534_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,479

C000014534_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,618

C000014534_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,536

C000014534_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,593

C000014534_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,253

C000014534_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,507

C000014534_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,668

C000014534_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

24,298

C000014534_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 27,587

$ 27,587

27,587

27,587

$ 27,587

$ 27,587

C000014534_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Consumer Discretionary 25-50 Index</span>" id="sjs-G5864">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Consumer Discretionary 25-50 Index&lt;/span>

C000014534_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014534_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

12,215

C000014534_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,366

C000014534_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,162

C000014534_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

17,199

C000014534_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

18,581

C000014534_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

22,632

C000014534_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

33,278

C000014534_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

28,694

C000014534_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

31,608

C000014534_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

35,092

35,092

35,092

35,092

35,092

$ 35,092

C000014534_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G5900">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014534_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014534_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014534_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014534_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014534_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014534_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014534_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014534_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014534_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014534_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014534_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014534_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.01%

C000014534_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.40%

C000014534_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.68%

C000014534_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.54%

C000014534_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.70%

C000014534_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.34%

C000014534_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.02%

C000014534_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.56%

C000014534_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.38%

C000014542_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G5963">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014542_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014542_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,410

C000014542_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,903

C000014542_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,248

C000014542_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,171

C000014542_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,423

C000014542_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

13,440

C000014542_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,178

C000014542_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,719

C000014542_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,793

C000014542_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,999

$ 24,999

24,999

24,999

$ 24,999

$ 24,999

C000014542_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Industrials 25-50 Index</span>" id="sjs-G5999">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Industrials 25-50 Index&lt;/span>

C000014542_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014542_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,697

C000014542_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,622

C000014542_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,810

C000014542_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,836

C000014542_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,344

C000014542_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,397

C000014542_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,708

C000014542_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,070

C000014542_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,150

C000014542_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,881

29,881

29,881

29,881

29,881

$ 29,881

C000014542_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6035">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014542_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014542_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014542_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014542_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014542_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014542_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014542_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014542_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014542_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014542_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014542_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014542_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

21.88%

C000014542_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.84%

C000014542_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.60%

C000014542_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.30%

C000014542_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.63%

C000014542_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.99%

C000014542_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.81%

C000014542_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.83%

C000014542_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.57%

C000014527_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-G6098">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000014527_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000014527_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,676

C000014527_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,486

C000014527_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

16,023

C000014527_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,044

C000014527_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

21,446

C000014527_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

31,834

C000014527_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,991

C000014527_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

38,175

C000014527_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

49,703

C000014527_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 63,010

$ 63,010

63,010

63,010

$ 63,010

$ 63,010

C000014527_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Information Technology 25-50 Index</span>" id="sjs-G6134">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Information Technology 25-50 Index&lt;/span>

C000014527_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014527_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,306

C000014527_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,261

C000014527_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

15,808

C000014527_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,247

C000014527_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,485

C000014527_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,225

C000014527_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,360

C000014527_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

41,091

C000014527_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

50,982

C000014527_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

64,137

64,137

64,137

64,137

64,137

$ 64,137

C000014527_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6170">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014527_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014527_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014527_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014527_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014527_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014527_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014527_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014527_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014527_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014527_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014527_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

34,403

$ 34,403

$ 34,403

C000014527_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.34%

C000014527_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.17%

C000014527_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.21%

C000014527_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.77%

C000014527_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.05%

C000014527_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.64%

C000014527_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.80%

C000014527_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.25%

C000014527_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.42%

C000205004_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D6233">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205004_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205004_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,203

C000205004_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,700

C000205004_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

23,970

C000205004_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,292

C000205004_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

34,912

C000205004_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 48,893

$ 48,893

$ 48,893

48,893

$ 48,893

48,893

C000205004_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index</span>" id="sjs-D6257">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Semiconductors &amp; Semiconductor Equipment 25-50 Index&lt;/span>

C000205004_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205004_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,992

C000205004_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,816

C000205004_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

23,440

C000205004_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

22,253

C000205004_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

33,233

C000205004_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

49,556

49,556

$ 49,556

49,556

49,556

49,556

C000205004_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-D6281">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000205004_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205004_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,365

C000205004_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,604

C000205004_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,833

C000205004_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,098

C000205004_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,064

C000205004_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,843

$ 20,843

$ 20,843

20,843

20,843

$ 20,843

C000205004_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

40.05%

C000205004_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

34.27%

C000205004_NoLoadClassMember_2023-08-01_2024-07-31Member

Account Value [Line Items]

Average Annual Return, Percent

31.27%

C000205004_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

49.12%

C000205004_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.15%

C000205004_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

31.57%

C000014529_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G6323">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014529_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014529_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

9,615

C000014529_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,912

C000014529_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,989

C000014529_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,169

C000014529_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,713

C000014529_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,485

C000014529_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,651

C000014529_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,764

C000014529_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,451

C000014529_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,657

$ 22,657

22,657

22,657

22,657

$ 22,657

C000014529_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Utilities 25-50 Index</span>" id="sjs-G6359">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Utilities 25-50 Index&lt;/span>

C000014529_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014529_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,922

C000014529_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,519

C000014529_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,434

C000014529_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,013

C000014529_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,419

C000014529_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,988

C000014529_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,183

C000014529_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,242

C000014529_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,712

C000014529_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

24,456

24,456

24,456

24,456

24,456

$ 24,456

C000014529_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6395">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014529_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014529_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014529_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014529_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014529_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014529_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014529_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014529_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014529_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014529_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014529_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014529_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.78%

C000014529_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.73%

C000014529_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.52%

C000014529_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

16.48%

C000014529_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.02%

C000014529_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.17%

C000014529_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.64%

C000014529_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.02%

C000014529_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.36%

C000014531_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G6458">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014531_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014531_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,129

C000014531_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,409

C000014531_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,438

C000014531_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,562

C000014531_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

15,036

C000014531_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,693

C000014531_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,765

C000014531_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

19,747

C000014531_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,434

C000014531_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 22,637

$ 22,637

22,637

22,637

$ 22,637

$ 22,637

C000014531_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Utilities 25-50 Index</span>" id="sjs-G6494">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Utilities 25-50 Index&lt;/span>

C000014531_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014531_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,922

C000014531_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,519

C000014531_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,434

C000014531_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,013

C000014531_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,419

C000014531_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

17,988

C000014531_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,183

C000014531_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

23,242

C000014531_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

21,712

C000014531_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

24,456

24,456

24,456

24,456

24,456

$ 24,456

C000014531_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6530">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014531_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014531_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014531_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014531_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014531_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014531_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014531_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014531_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014531_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014531_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014531_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014531_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.64%

C000014531_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.20%

C000014531_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.51%

C000014531_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

15.64%

C000014531_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.20%

C000014531_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.51%

C000014531_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.64%

C000014531_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.02%

C000014531_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.36%

C000014541_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G6593">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014541_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014541_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,736

C000014541_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,191

C000014541_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,507

C000014541_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

14,399

C000014541_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,583

C000014541_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

13,523

C000014541_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,199

C000014541_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,655

C000014541_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

19,766

C000014541_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 25,032

$ 25,032

25,032

25,032

$ 25,032

$ 25,032

C000014541_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Industrials 25-50 Index</span>" id="sjs-G6629">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Industrials 25-50 Index&lt;/span>

C000014541_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014541_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,697

C000014541_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,622

C000014541_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,810

C000014541_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,836

C000014541_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

16,344

C000014541_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,397

C000014541_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,708

C000014541_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

21,070

C000014541_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

25,150

C000014541_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

29,881

29,881

29,881

29,881

29,881

$ 29,881

C000014541_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6665">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014541_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014541_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014541_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014541_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014541_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014541_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014541_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014541_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014541_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014541_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014541_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014541_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.68%

C000014541_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.08%

C000014541_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.61%

C000014541_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.68%

C000014541_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.08%

C000014541_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.61%

C000014541_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.81%

C000014541_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.83%

C000014541_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.57%

C000014566_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G6728">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014566_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014566_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,056

C000014566_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,093

C000014566_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

6,962

C000014566_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,575

C000014566_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

6,378

C000014566_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

3,830

C000014566_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

5,580

C000014566_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,478

C000014566_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,989

C000014566_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,247

$ 12,247

12,247

12,247

$ 12,247

$ 12,247

C000014566_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Energy 25-50 Index</span>" id="sjs-G6764">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Energy 25-50 Index&lt;/span>

C000014566_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014566_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,208

C000014566_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,220

C000014566_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

7,200

C000014566_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

8,707

C000014566_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

7,019

C000014566_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

4,258

C000014566_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

6,393

C000014566_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,594

C000014566_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,299

C000014566_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,570

13,570

13,570

13,570

13,570

$ 13,570

C000014566_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6800">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014566_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014566_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014566_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014566_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014566_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014566_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014566_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014566_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014566_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014566_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014566_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014566_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.61%

C000014566_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.60%

C000014566_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.05%

C000014566_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.61%

C000014566_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

13.60%

C000014566_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.05%

C000014566_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.33%

C000014566_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

14.09%

C000014566_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.10%

C000014526_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-G6863">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000014526_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014526_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,007

C000014526_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,786

C000014526_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

16,359

C000014526_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,363

C000014526_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

21,675

C000014526_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,012

C000014526_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

46,010

C000014526_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

37,997

C000014526_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

49,589

C000014526_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 63,022

$ 63,022

63,022

63,022

$ 63,022

$ 63,022

C000014526_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Information Technology 25-50 Index</span>" id="sjs-G6899">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Information Technology 25-50 Index&lt;/span>

C000014526_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014526_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,306

C000014526_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,261

C000014526_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

15,808

C000014526_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

20,247

C000014526_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,485

C000014526_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,225

C000014526_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

45,360

C000014526_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

41,091

C000014526_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

50,982

C000014526_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

64,137

64,137

64,137

64,137

64,137

$ 64,137

C000014526_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G6935">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014526_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014526_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014526_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014526_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014526_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014526_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014526_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014526_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014526_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014526_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014526_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014526_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.14%

C000014526_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.42%

C000014526_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.21%

C000014526_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.14%

C000014526_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.42%

C000014526_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.21%

C000014526_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.80%

C000014526_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.25%

C000014526_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.42%

C000014549_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-G6998">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000014549_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000014549_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,448

C000014549_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

12,585

C000014549_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

16,514

C000014549_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,031

C000014549_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,171

C000014549_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

30,274

C000014549_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

49,179

C000014549_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

47,602

C000014549_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

71,075

C000014549_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 99,162

$ 99,162

99,162

99,162

$ 99,162

$ 99,162

C000014549_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI U.S. IMI Semiconductors & Semiconductor Equipment 25-50 Index</span>" id="sjs-G7034">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI U.S. IMI Semiconductors &amp; Semiconductor Equipment 25-50 Index&lt;/span>

C000014549_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014549_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,481

C000014549_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,028

C000014549_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

17,291

C000014549_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

21,750

C000014549_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

23,948

C000014549_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

32,281

C000014549_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

51,070

C000014549_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

48,484

C000014549_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

72,407

C000014549_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

107,971

107,971

107,971

107,971

107,971

$ 107,971

C000014549_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G7070">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014549_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014549_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,121

C000014549_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,745

C000014549_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,629

C000014549_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

15,843

C000014549_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

17,108

C000014549_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

19,153

C000014549_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

26,134

C000014549_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

24,921

C000014549_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

28,165

C000014549_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

34,403

34,403

$ 34,403

$ 34,403

C000014549_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

31.49%

C000014549_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

32.17%

C000014549_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.79%

C000014549_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

39.52%

C000014549_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.75%

C000014549_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.53%

C000014549_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

49.12%

C000014549_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.15%

C000014549_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.86%

C000014573_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-G7133">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000014573_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014573_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,999

C000014573_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,046

C000014573_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,347

C000014573_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,698

C000014573_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,958

C000014573_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,982

C000014573_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,961

C000014573_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,041

C000014573_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,208

C000014573_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 15,685

$ 15,685

15,685

15,685

$ 15,685

$ 15,685

C000014573_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI US IMI Real Estate 25/50 Linked Index</span>" id="sjs-G7169">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI US IMI Real Estate 25/50 Linked Index&lt;/span>

C000014573_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000014573_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

11,129

C000014573_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

13,457

C000014573_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,695

C000014573_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,185

C000014573_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,621

C000014573_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,238

C000014573_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,556

C000014573_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,854

C000014573_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,323

C000014573_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,860

15,860

15,860

15,860

15,860

$ 15,860

C000014573_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P 500® Index</span>" id="sjs-G7205">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index&lt;/span>

C000014573_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

$ 10,000

C000014573_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

$ 11,121

C000014573_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

$ 11,745

C000014573_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

$ 13,629

C000014573_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

$ 15,843

C000014573_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

$ 17,108

C000014573_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

$ 19,153

C000014573_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

$ 26,134

C000014573_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

$ 24,921

C000014573_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

$ 28,165

C000014573_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 34,403

$ 34,403

$ 34,403

$ 34,403

$ 34,403

$ 34,403

C000014573_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.40%

C000014573_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.36%

C000014573_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.60%

C000014573_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.73%

C000014573_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

1.64%

C000014573_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.72%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jul. 31, 2024
Fidelity Advisor Global Real Estate Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Global Real Estate Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Global Real Estate Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Real Estate Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Global Real Estate Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Real Estate Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Real Estate Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	19.80%
Fidelity Advisor Global Real Estate Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	19.10%
Fidelity Advisor Global Real Estate Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Global Real Estate Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18%
Fidelity Advisor Global Real Estate Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Advisor Global Real Estate Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Real Estate Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Global Real Estate Fund - Class I | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Real Estate Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	61.90%
Fidelity Advisor Global Real Estate Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Advisor Global Real Estate Fund - Class I | Japan
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Global Real Estate Fund - Class I | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Real Estate Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Global Real Estate Fund - Class I | Singapore
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class I | France
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Real Estate Fund - Class I | Sweden
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Real Estate Fund - Class I | Germany
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Global Real Estate Fund - Class I | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Advisor Global Real Estate Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98.90%
Fidelity Advisor Global Real Estate Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	23.90%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	8%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Consumer Discretionary Fund - Class Z | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Consumer Discretionary Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Consumer Discretionary Fund - Class Z | France
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class Z | Brazil
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class Z | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100.10%
Fidelity Advisor Global Real Estate Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Global Real Estate Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Global Real Estate Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Real Estate Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Global Real Estate Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Real Estate Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Real Estate Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	19.80%
Fidelity Advisor Global Real Estate Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	19.10%
Fidelity Advisor Global Real Estate Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Global Real Estate Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18%
Fidelity Advisor Global Real Estate Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Advisor Global Real Estate Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Real Estate Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Global Real Estate Fund - Class M | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Real Estate Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	61.90%
Fidelity Advisor Global Real Estate Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Advisor Global Real Estate Fund - Class M | Japan
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Global Real Estate Fund - Class M | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Real Estate Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Global Real Estate Fund - Class M | Singapore
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class M | France
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Real Estate Fund - Class M | Sweden
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Real Estate Fund - Class M | Germany
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Global Real Estate Fund - Class M | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Advisor Global Real Estate Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98.90%
Fidelity Advisor Global Real Estate Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Industrials Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Industrials Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Industrials Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Industrials Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity Advisor Industrials Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Industrials Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Industrials Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Industrials Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Industrials Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	22.70%
Fidelity Advisor Industrials Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Fidelity Advisor Industrials Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Advisor Industrials Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Fidelity Advisor Industrials Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Industrials Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Industrials Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Industrials Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Industrials Fund - Class I | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Industrials Fund - Class I | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Advisor Industrials Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Industrials Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99%
Fidelity Advisor Industrials Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Real Estate Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Real Estate Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Real Estate Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Advisor Real Estate Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Real Estate Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Real Estate Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Real Estate Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Real Estate Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Real Estate Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	37.60%
Fidelity Advisor Real Estate Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Real Estate Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Fidelity Advisor Real Estate Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Real Estate Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Real Estate Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Advisor Real Estate Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Real Estate Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Real Estate Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Real Estate Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.30%
Fidelity Advisor Real Estate Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Technology Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity Advisor Technology Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	19.20%
Fidelity Advisor Technology Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Advisor Technology Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Technology Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Technology Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Technology Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Technology Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	41.80%
Fidelity Advisor Technology Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Technology Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.60%
Fidelity Advisor Technology Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Technology Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Technology Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Technology Fund - Class I | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Technology Fund - Class I | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Technology Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	91.20%
Fidelity Advisor Technology Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class I | China
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Technology Fund - Class I | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Technology Fund - Class I | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class I | India
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Technology Fund - Class I | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class I | Israel
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.50%
Fidelity Advisor Technology Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Technology Fund - Class I | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class I | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class I | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Financials Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Fidelity Advisor Financials Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Financials Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Financials Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Financials Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Financials Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Financials Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Financials Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Advisor Financials Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	21.10%
Fidelity Advisor Financials Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Financials Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Advisor Financials Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Financials Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	93%
Fidelity Advisor Financials Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class C | Puerto Rico
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class C | GrandCaymanUKOverseasTerMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Financials Fund - Class C | Mexico
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Financials Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Financials Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity Advisor Technology Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	19.20%
Fidelity Advisor Technology Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Advisor Technology Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Technology Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Technology Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Technology Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Technology Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	41.80%
Fidelity Advisor Technology Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Technology Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.60%
Fidelity Advisor Technology Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Technology Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Technology Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Technology Fund - Class Z | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Technology Fund - Class Z | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Technology Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	91.20%
Fidelity Advisor Technology Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class Z | China
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Technology Fund - Class Z | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Technology Fund - Class Z | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class Z | India
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Technology Fund - Class Z | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class Z | Israel
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.50%
Fidelity Advisor Technology Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Technology Fund - Class Z | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class Z | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class Z | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Real Estate Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Real Estate Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Real Estate Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Advisor Real Estate Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Real Estate Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Real Estate Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Real Estate Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Real Estate Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Real Estate Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	37.60%
Fidelity Advisor Real Estate Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Real Estate Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Fidelity Advisor Real Estate Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Real Estate Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Real Estate Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Advisor Real Estate Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Real Estate Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Real Estate Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Real Estate Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.30%
Fidelity Advisor Real Estate Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Global Real Estate Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Global Real Estate Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Global Real Estate Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Real Estate Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Global Real Estate Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Real Estate Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Real Estate Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	19.80%
Fidelity Advisor Global Real Estate Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	19.10%
Fidelity Advisor Global Real Estate Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Global Real Estate Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18%
Fidelity Advisor Global Real Estate Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Advisor Global Real Estate Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Real Estate Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Global Real Estate Fund - Class C | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Real Estate Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	61.90%
Fidelity Advisor Global Real Estate Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Advisor Global Real Estate Fund - Class C | Japan
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Global Real Estate Fund - Class C | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Real Estate Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Global Real Estate Fund - Class C | Singapore
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class C | France
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Real Estate Fund - Class C | Sweden
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Real Estate Fund - Class C | Germany
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Global Real Estate Fund - Class C | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Advisor Global Real Estate Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98.90%
Fidelity Advisor Global Real Estate Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Biotechnology Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Fidelity Advisor Biotechnology Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Biotechnology Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Biotechnology Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Biotechnology Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Biotechnology Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Biotechnology Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Advisor Biotechnology Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Biotechnology Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Biotechnology Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	88%
Fidelity Advisor Biotechnology Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Biotechnology Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Biotechnology Fund - Class C | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Biotechnology Fund - Class C | Denmark
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class C | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Advisor Biotechnology Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Biotechnology Fund - Class C | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Biotechnology Fund - Class C | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Financials Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Fidelity Advisor Financials Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Financials Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Financials Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Financials Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Financials Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Financials Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Financials Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Advisor Financials Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	21.10%
Fidelity Advisor Financials Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Financials Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Advisor Financials Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Financials Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	93%
Fidelity Advisor Financials Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class M | Puerto Rico
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class M | GrandCaymanUKOverseasTerMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Financials Fund - Class M | Mexico
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Financials Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Financials Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Financials Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Fidelity Advisor Financials Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Financials Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Financials Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Financials Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Financials Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Financials Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Financials Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Advisor Financials Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	21.10%
Fidelity Advisor Financials Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Financials Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Advisor Financials Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Financials Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	93%
Fidelity Advisor Financials Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class I | Puerto Rico
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class I | GrandCaymanUKOverseasTerMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Financials Fund - Class I | Mexico
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Financials Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Financials Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Energy Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Energy Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Energy Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Energy Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Energy Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Energy Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Energy Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	81.10%
Fidelity Advisor Energy Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Advisor Energy Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Energy Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	82.60%
Fidelity Advisor Energy Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Energy Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Advisor Energy Fund - Class M | France
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class M | Norway
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Energy Fund - Class M | Cameroon
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class M | United Arab Emirates
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Energy Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Energy Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Energy Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Energy Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Energy Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Energy Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Energy Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	81.10%
Fidelity Advisor Energy Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Advisor Energy Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Energy Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	82.60%
Fidelity Advisor Energy Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Energy Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Advisor Energy Fund - Class A | France
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class A | Norway
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Energy Fund - Class A | Cameroon
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class A | United Arab Emirates
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Energy Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Financials Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Fidelity Advisor Financials Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Financials Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Financials Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Financials Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Financials Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Financials Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Financials Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Advisor Financials Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	21.10%
Fidelity Advisor Financials Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Financials Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Advisor Financials Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Financials Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	93%
Fidelity Advisor Financials Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class A | Puerto Rico
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class A | GrandCaymanUKOverseasTerMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Financials Fund - Class A | Mexico
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Financials Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Financials Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Fidelity Advisor Semiconductors Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Fidelity Advisor Semiconductors Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Advisor Semiconductors Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Semiconductors Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Semiconductors Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Semiconductors Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.70%
Fidelity Advisor Semiconductors Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Semiconductors Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Semiconductors Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	79.90%
Fidelity Advisor Semiconductors Fund - Class C | Japan
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Semiconductors Fund - Class C | China
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class C | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Semiconductors Fund - Class C | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class C | Israel
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Semiconductors Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95%
Fidelity Advisor Semiconductors Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class C | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Semiconductors Fund - Class C | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Utilities Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Advisor Utilities Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Utilities Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Utilities Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Utilities Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Utilities Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Utilities Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Utilities Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	63%
Fidelity Advisor Utilities Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Advisor Utilities Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Utilities Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Utilities Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Utilities Fund - Class I | Australia
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.40%
Fidelity Advisor Utilities Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Advisor Health Care Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Health Care Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Health Care Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Health Care Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Health Care Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Health Care Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Health Care Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Health Care Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Health Care Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Health Care Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Health Care Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	24.40%
Fidelity Advisor Health Care Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.50%
Fidelity Advisor Health Care Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	21.80%
Fidelity Advisor Health Care Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	16.60%
Fidelity Advisor Health Care Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity Advisor Health Care Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Health Care Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	91.50%
Fidelity Advisor Health Care Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Health Care Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Health Care Fund - Class C | China
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class C | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Health Care Fund - Class C | Israel
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class C | Denmark
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class C | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Health Care Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.90%
Fidelity Advisor Health Care Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Health Care Fund - Class C | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class C | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class C | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Industrials Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Industrials Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Industrials Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Industrials Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity Advisor Industrials Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Industrials Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Industrials Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Industrials Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Industrials Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	22.70%
Fidelity Advisor Industrials Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Fidelity Advisor Industrials Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Advisor Industrials Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Fidelity Advisor Industrials Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Industrials Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Industrials Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Industrials Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Industrials Fund - Class Z | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Industrials Fund - Class Z | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Advisor Industrials Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Industrials Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99%
Fidelity Advisor Industrials Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Global Real Estate Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Global Real Estate Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Global Real Estate Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Real Estate Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Global Real Estate Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Real Estate Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Real Estate Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	19.80%
Fidelity Advisor Global Real Estate Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	19.10%
Fidelity Advisor Global Real Estate Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Global Real Estate Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18%
Fidelity Advisor Global Real Estate Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Advisor Global Real Estate Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Real Estate Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Global Real Estate Fund - Class Z | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Real Estate Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	61.90%
Fidelity Advisor Global Real Estate Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Advisor Global Real Estate Fund - Class Z | Japan
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Global Real Estate Fund - Class Z | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Real Estate Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Global Real Estate Fund - Class Z | Singapore
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class Z | France
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Real Estate Fund - Class Z | Sweden
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Real Estate Fund - Class Z | Germany
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Global Real Estate Fund - Class Z | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Advisor Global Real Estate Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98.90%
Fidelity Advisor Global Real Estate Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Semiconductors Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Fidelity Advisor Semiconductors Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Fidelity Advisor Semiconductors Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Advisor Semiconductors Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Semiconductors Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Semiconductors Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Semiconductors Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.70%
Fidelity Advisor Semiconductors Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Semiconductors Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Semiconductors Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	79.90%
Fidelity Advisor Semiconductors Fund - Class I | Japan
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Semiconductors Fund - Class I | China
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class I | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Semiconductors Fund - Class I | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class I | Israel
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Semiconductors Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95%
Fidelity Advisor Semiconductors Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class I | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Semiconductors Fund - Class I | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Biotechnology Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Biotechnology Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Fidelity Advisor Biotechnology Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Biotechnology Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Biotechnology Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Biotechnology Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Biotechnology Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Biotechnology Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Advisor Biotechnology Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Biotechnology Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Biotechnology Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	88%
Fidelity Advisor Biotechnology Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Biotechnology Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Biotechnology Fund - Class M | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Biotechnology Fund - Class M | Denmark
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class M | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Advisor Biotechnology Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Biotechnology Fund - Class M | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Biotechnology Fund - Class M | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Health Care Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Health Care Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Health Care Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Health Care Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Health Care Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Health Care Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Health Care Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Health Care Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Health Care Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Health Care Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	24.40%
Fidelity Advisor Health Care Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.50%
Fidelity Advisor Health Care Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	21.80%
Fidelity Advisor Health Care Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	16.60%
Fidelity Advisor Health Care Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity Advisor Health Care Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Health Care Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	91.50%
Fidelity Advisor Health Care Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Health Care Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Health Care Fund - Class M | China
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class M | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Health Care Fund - Class M | Israel
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class M | Denmark
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class M | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Health Care Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.90%
Fidelity Advisor Health Care Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Health Care Fund - Class M | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class M | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class M | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Biotechnology Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Fidelity Advisor Biotechnology Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Biotechnology Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Biotechnology Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Biotechnology Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Biotechnology Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Biotechnology Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Advisor Biotechnology Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Biotechnology Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Biotechnology Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	88%
Fidelity Advisor Biotechnology Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Biotechnology Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Biotechnology Fund - Class A | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Biotechnology Fund - Class A | Denmark
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class A | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Advisor Biotechnology Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Biotechnology Fund - Class A | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Biotechnology Fund - Class A | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	23.90%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	8%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Consumer Discretionary Fund - Class I | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Consumer Discretionary Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Consumer Discretionary Fund - Class I | France
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class I | Brazil
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class I | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100.10%
Fidelity Advisor Real Estate Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Real Estate Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Real Estate Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Advisor Real Estate Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Real Estate Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Real Estate Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Real Estate Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Real Estate Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Real Estate Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	37.60%
Fidelity Advisor Real Estate Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Real Estate Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Fidelity Advisor Real Estate Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Real Estate Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Real Estate Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Advisor Real Estate Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Real Estate Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Real Estate Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Real Estate Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.30%
Fidelity Advisor Real Estate Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Industrials Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Industrials Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Industrials Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Industrials Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity Advisor Industrials Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Industrials Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Industrials Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Industrials Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Industrials Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	22.70%
Fidelity Advisor Industrials Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Fidelity Advisor Industrials Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Advisor Industrials Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Fidelity Advisor Industrials Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Industrials Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Industrials Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Industrials Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Industrials Fund - Class A | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Industrials Fund - Class A | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Advisor Industrials Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Industrials Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99%
Fidelity Advisor Industrials Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	23.90%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	8%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Consumer Discretionary Fund - Class M | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Consumer Discretionary Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Consumer Discretionary Fund - Class M | France
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class M | Brazil
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class M | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100.10%
Fidelity Advisor Utilities Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Advisor Utilities Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Utilities Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Utilities Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Utilities Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Utilities Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Utilities Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Utilities Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	63%
Fidelity Advisor Utilities Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Advisor Utilities Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Utilities Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Utilities Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Utilities Fund - Class M | Australia
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.40%
Fidelity Advisor Utilities Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Advisor Biotechnology Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Biotechnology Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Fidelity Advisor Biotechnology Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Biotechnology Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Biotechnology Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Biotechnology Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Biotechnology Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Biotechnology Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Advisor Biotechnology Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Biotechnology Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Biotechnology Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	88%
Fidelity Advisor Biotechnology Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Biotechnology Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Biotechnology Fund - Class Z | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Biotechnology Fund - Class Z | Denmark
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class Z | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Advisor Biotechnology Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Biotechnology Fund - Class Z | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Biotechnology Fund - Class Z | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Utilities Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Advisor Utilities Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Utilities Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Utilities Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Utilities Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Utilities Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Utilities Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Utilities Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	63%
Fidelity Advisor Utilities Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Advisor Utilities Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Utilities Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Utilities Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Utilities Fund - Class Z | Australia
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.40%
Fidelity Advisor Utilities Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Advisor Global Real Estate Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Global Real Estate Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Global Real Estate Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Real Estate Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Global Real Estate Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Real Estate Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Real Estate Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Global Real Estate Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	19.80%
Fidelity Advisor Global Real Estate Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	19.10%
Fidelity Advisor Global Real Estate Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Global Real Estate Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18%
Fidelity Advisor Global Real Estate Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Advisor Global Real Estate Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Real Estate Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Global Real Estate Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Global Real Estate Fund - Class A | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Real Estate Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	61.90%
Fidelity Advisor Global Real Estate Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Advisor Global Real Estate Fund - Class A | Japan
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Global Real Estate Fund - Class A | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Real Estate Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Global Real Estate Fund - Class A | Singapore
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Global Real Estate Fund - Class A | France
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Real Estate Fund - Class A | Sweden
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Real Estate Fund - Class A | Germany
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Global Real Estate Fund - Class A | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Advisor Global Real Estate Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98.90%
Fidelity Advisor Global Real Estate Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Health Care Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Health Care Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Health Care Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Health Care Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Health Care Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Health Care Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Health Care Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Health Care Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Health Care Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Health Care Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Health Care Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	24.40%
Fidelity Advisor Health Care Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.50%
Fidelity Advisor Health Care Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	21.80%
Fidelity Advisor Health Care Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	16.60%
Fidelity Advisor Health Care Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity Advisor Health Care Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Health Care Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	91.50%
Fidelity Advisor Health Care Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Health Care Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Health Care Fund - Class I | China
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class I | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Health Care Fund - Class I | Israel
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class I | Denmark
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class I | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Health Care Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.90%
Fidelity Advisor Health Care Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Health Care Fund - Class I | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class I | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class I | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Financials Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.10%
Fidelity Advisor Financials Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Financials Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Financials Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Financials Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Financials Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Financials Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Financials Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Financials Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Advisor Financials Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	21.10%
Fidelity Advisor Financials Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Financials Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Advisor Financials Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Financials Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	93%
Fidelity Advisor Financials Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Financials Fund - Class Z | Puerto Rico
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Financials Fund - Class Z | GrandCaymanUKOverseasTerMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Financials Fund - Class Z | Mexico
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Financials Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Financials Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Fidelity Advisor Semiconductors Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Fidelity Advisor Semiconductors Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Advisor Semiconductors Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Semiconductors Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Semiconductors Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Semiconductors Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.70%
Fidelity Advisor Semiconductors Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Semiconductors Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Semiconductors Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	79.90%
Fidelity Advisor Semiconductors Fund - Class M | Japan
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Semiconductors Fund - Class M | China
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class M | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Semiconductors Fund - Class M | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class M | Israel
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Semiconductors Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95%
Fidelity Advisor Semiconductors Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class M | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Semiconductors Fund - Class M | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Health Care Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Health Care Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Health Care Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Health Care Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Health Care Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Health Care Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Health Care Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Health Care Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Health Care Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Health Care Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	24.40%
Fidelity Advisor Health Care Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.50%
Fidelity Advisor Health Care Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	21.80%
Fidelity Advisor Health Care Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	16.60%
Fidelity Advisor Health Care Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity Advisor Health Care Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Health Care Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	91.50%
Fidelity Advisor Health Care Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Health Care Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Health Care Fund - Class Z | China
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class Z | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Health Care Fund - Class Z | Israel
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class Z | Denmark
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class Z | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Health Care Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.90%
Fidelity Advisor Health Care Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Health Care Fund - Class Z | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class Z | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class Z | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Health Care Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Advisor Health Care Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Health Care Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Advisor Health Care Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Health Care Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Health Care Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Health Care Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Health Care Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Health Care Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Health Care Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	24.40%
Fidelity Advisor Health Care Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.50%
Fidelity Advisor Health Care Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	21.80%
Fidelity Advisor Health Care Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	16.60%
Fidelity Advisor Health Care Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity Advisor Health Care Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Health Care Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	91.50%
Fidelity Advisor Health Care Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Health Care Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Health Care Fund - Class A | China
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Health Care Fund - Class A | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Health Care Fund - Class A | Israel
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Health Care Fund - Class A | Denmark
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class A | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Health Care Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.90%
Fidelity Advisor Health Care Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Health Care Fund - Class A | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Health Care Fund - Class A | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Health Care Fund - Class A | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Real Estate Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Real Estate Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Real Estate Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Advisor Real Estate Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Real Estate Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Real Estate Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Real Estate Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Real Estate Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Real Estate Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	37.60%
Fidelity Advisor Real Estate Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Real Estate Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Fidelity Advisor Real Estate Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Real Estate Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Real Estate Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Advisor Real Estate Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Real Estate Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Real Estate Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Real Estate Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.30%
Fidelity Advisor Real Estate Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Biotechnology Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Advisor Biotechnology Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	9.40%
Fidelity Advisor Biotechnology Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Biotechnology Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Biotechnology Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Biotechnology Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Biotechnology Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Biotechnology Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Biotechnology Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Advisor Biotechnology Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Biotechnology Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Biotechnology Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Biotechnology Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	88%
Fidelity Advisor Biotechnology Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Biotechnology Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Advisor Biotechnology Fund - Class I | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Biotechnology Fund - Class I | Denmark
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Biotechnology Fund - Class I | Belgium
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Biotechnology Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Advisor Biotechnology Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Biotechnology Fund - Class I | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Biotechnology Fund - Class I | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity Advisor Technology Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	19.20%
Fidelity Advisor Technology Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Advisor Technology Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Technology Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Technology Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Technology Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Technology Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	41.80%
Fidelity Advisor Technology Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Technology Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.60%
Fidelity Advisor Technology Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Technology Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Technology Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Technology Fund - Class A | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Technology Fund - Class A | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Technology Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	91.20%
Fidelity Advisor Technology Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class A | China
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Technology Fund - Class A | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Technology Fund - Class A | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class A | India
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Technology Fund - Class A | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class A | Israel
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.50%
Fidelity Advisor Technology Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Technology Fund - Class A | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class A | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class A | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	23.90%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	8%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Consumer Discretionary Fund - Class C | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Consumer Discretionary Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Consumer Discretionary Fund - Class C | France
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class C | Brazil
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class C | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100.10%
Fidelity Advisor Energy Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Energy Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Energy Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Energy Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Energy Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Energy Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Energy Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	81.10%
Fidelity Advisor Energy Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Advisor Energy Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Energy Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	82.60%
Fidelity Advisor Energy Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Energy Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Advisor Energy Fund - Class Z | France
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class Z | Norway
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Energy Fund - Class Z | Cameroon
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class Z | United Arab Emirates
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Energy Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Energy Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Energy Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Energy Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Energy Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Energy Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Energy Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	81.10%
Fidelity Advisor Energy Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Advisor Energy Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Energy Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	82.60%
Fidelity Advisor Energy Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Energy Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Advisor Energy Fund - Class I | France
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class I | Norway
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Energy Fund - Class I | Cameroon
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class I | United Arab Emirates
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Energy Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	23.90%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	18.70%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	8%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Consumer Discretionary Fund - Class A | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Consumer Discretionary Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Consumer Discretionary Fund - Class A | France
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class A | Brazil
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Consumer Discretionary Fund - Class A | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Consumer Discretionary Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	100.10%
Fidelity Advisor Industrials Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Industrials Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Industrials Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Industrials Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity Advisor Industrials Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Industrials Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Industrials Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Industrials Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Industrials Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	22.70%
Fidelity Advisor Industrials Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Fidelity Advisor Industrials Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Advisor Industrials Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Fidelity Advisor Industrials Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Industrials Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Industrials Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Industrials Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Industrials Fund - Class M | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Industrials Fund - Class M | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Advisor Industrials Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Industrials Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99%
Fidelity Advisor Industrials Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity Advisor Technology Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	19.20%
Fidelity Advisor Technology Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Advisor Technology Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Technology Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Technology Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Technology Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Technology Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	41.80%
Fidelity Advisor Technology Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Technology Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.60%
Fidelity Advisor Technology Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Technology Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Technology Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Technology Fund - Class M | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Technology Fund - Class M | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Technology Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	91.20%
Fidelity Advisor Technology Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class M | China
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Technology Fund - Class M | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Technology Fund - Class M | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class M | India
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Technology Fund - Class M | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class M | Israel
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.50%
Fidelity Advisor Technology Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Technology Fund - Class M | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class M | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class M | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Fidelity Advisor Semiconductors Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Fidelity Advisor Semiconductors Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Advisor Semiconductors Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Semiconductors Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Semiconductors Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Semiconductors Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.70%
Fidelity Advisor Semiconductors Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Semiconductors Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Semiconductors Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	79.90%
Fidelity Advisor Semiconductors Fund - Class Z | Japan
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Semiconductors Fund - Class Z | China
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class Z | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Semiconductors Fund - Class Z | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class Z | Israel
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Semiconductors Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95%
Fidelity Advisor Semiconductors Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class Z | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Semiconductors Fund - Class Z | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Utilities Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Advisor Utilities Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Utilities Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Utilities Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Utilities Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Utilities Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Utilities Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Utilities Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	63%
Fidelity Advisor Utilities Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Advisor Utilities Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Utilities Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Utilities Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Utilities Fund - Class A | Australia
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.40%
Fidelity Advisor Utilities Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Advisor Utilities Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Advisor Utilities Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Utilities Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Utilities Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Utilities Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Utilities Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Utilities Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Utilities Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Utilities Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	63%
Fidelity Advisor Utilities Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Advisor Utilities Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Utilities Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Utilities Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Utilities Fund - Class C | Australia
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Utilities Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.40%
Fidelity Advisor Utilities Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Advisor Industrials Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Industrials Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Industrials Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Advisor Industrials Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Industrials Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity Advisor Industrials Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Industrials Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Industrials Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Industrials Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Industrials Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	22.70%
Fidelity Advisor Industrials Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.20%
Fidelity Advisor Industrials Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Advisor Industrials Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	11.10%
Fidelity Advisor Industrials Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Industrials Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Industrials Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Industrials Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Industrials Fund - Class C | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Industrials Fund - Class C | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Advisor Industrials Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Industrials Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99%
Fidelity Advisor Industrials Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Energy Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Energy Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Energy Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Energy Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Energy Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Energy Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Energy Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Energy Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	81.10%
Fidelity Advisor Energy Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Advisor Energy Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Advisor Energy Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Energy Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	82.60%
Fidelity Advisor Energy Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Energy Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Advisor Energy Fund - Class C | France
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class C | Norway
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Energy Fund - Class C | Cameroon
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Energy Fund - Class C | United Arab Emirates
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Energy Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.80%
Fidelity Advisor Energy Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Technology Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity Advisor Technology Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	19.20%
Fidelity Advisor Technology Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Advisor Technology Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Technology Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Advisor Technology Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Technology Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Technology Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	41.80%
Fidelity Advisor Technology Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	20.70%
Fidelity Advisor Technology Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	20.60%
Fidelity Advisor Technology Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Technology Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Technology Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Technology Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Advisor Technology Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Technology Fund - Class C | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Advisor Technology Fund - Class C | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Technology Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	91.20%
Fidelity Advisor Technology Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Technology Fund - Class C | China
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Technology Fund - Class C | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Technology Fund - Class C | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class C | India
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Technology Fund - Class C | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class C | Israel
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.50%
Fidelity Advisor Technology Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Technology Fund - Class C | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Technology Fund - Class C | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Technology Fund - Class C | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	25.80%
Fidelity Advisor Semiconductors Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.30%
Fidelity Advisor Semiconductors Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Advisor Semiconductors Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Semiconductors Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Semiconductors Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Semiconductors Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	92.70%
Fidelity Advisor Semiconductors Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Semiconductors Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Semiconductors Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Semiconductors Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	79.90%
Fidelity Advisor Semiconductors Fund - Class A | Japan
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Semiconductors Fund - Class A | China
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Advisor Semiconductors Fund - Class A | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Semiconductors Fund - Class A | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Advisor Semiconductors Fund - Class A | Israel
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Semiconductors Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95%
Fidelity Advisor Semiconductors Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Advisor Semiconductors Fund - Class A | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Semiconductors Fund - Class A | AAPreferredSecuritiesMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Advisor Real Estate Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Advisor Real Estate Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	7.80%
Fidelity Advisor Real Estate Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Advisor Real Estate Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Real Estate Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Advisor Real Estate Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Real Estate Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Advisor Real Estate Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Real Estate Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Real Estate Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	37.60%
Fidelity Advisor Real Estate Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Real Estate Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	14.20%
Fidelity Advisor Real Estate Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.80%
Fidelity Advisor Real Estate Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Real Estate Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Advisor Real Estate Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Real Estate Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Real Estate Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	100%
Fidelity Advisor Real Estate Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.30%
Fidelity Advisor Real Estate Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.70%