v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
Fidelity Small Cap Stock K6 Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Small Cap Stock K6 Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Fidelity Small Cap Stock K6 Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Stock K6 Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Small Cap Stock K6 Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
Fidelity Small Cap Stock K6 Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Small Cap Stock K6 Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Small Cap Stock K6 Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Small Cap Stock K6 Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Small Cap Stock K6 Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Small Cap Stock K6 Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
Fidelity Small Cap Stock K6 Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
Fidelity Small Cap Stock K6 Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
Fidelity Small Cap Stock K6 Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Small Cap Stock K6 Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 18.80%
Fidelity Small Cap Stock K6 Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
Fidelity Small Cap Stock K6 Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
Fidelity Small Cap Stock K6 Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Fidelity Small Cap Stock K6 Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Small Cap Stock K6 Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Small Cap Stock K6 Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Small Cap Stock K6 Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.60%
Fidelity Small Cap Stock K6 Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Stock K6 Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Fidelity Small Cap Stock K6 Fund | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Small Cap Stock K6 Fund | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Small Cap Stock K6 Fund | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Small Cap Stock K6 Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Small Cap Stock K6 Fund | Puerto Rico  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Small Cap Stock K6 Fund | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Small Cap Stock K6 Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Small Cap Stock K6 Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 99.40%
Fidelity Small Cap Stock K6 Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Small Cap Stock Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Small Cap Stock Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Small Cap Stock Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Stock Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Stock Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
Fidelity Small Cap Stock Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Small Cap Stock Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Small Cap Stock Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Small Cap Stock Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Small Cap Stock Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Small Cap Stock Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
Fidelity Small Cap Stock Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
Fidelity Small Cap Stock Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
Fidelity Small Cap Stock Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Small Cap Stock Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 18.40%
Fidelity Small Cap Stock Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
Fidelity Small Cap Stock Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Small Cap Stock Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Fidelity Small Cap Stock Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Small Cap Stock Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Small Cap Stock Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Small Cap Stock Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.50%
Fidelity Small Cap Stock Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Stock Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Fidelity Small Cap Stock Fund | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Small Cap Stock Fund | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Small Cap Stock Fund | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Small Cap Stock Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Small Cap Stock Fund | Puerto Rico  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Small Cap Stock Fund | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Small Cap Stock Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Small Cap Stock Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 99.20%
Fidelity Small Cap Stock Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Small Cap Discovery Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Small Cap Discovery Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Small Cap Discovery Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Small Cap Discovery Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Small Cap Discovery Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Fidelity Small Cap Discovery Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Fidelity Small Cap Discovery Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Small Cap Discovery Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Small Cap Discovery Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Small Cap Discovery Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Small Cap Discovery Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
Fidelity Small Cap Discovery Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
Fidelity Small Cap Discovery Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
Fidelity Small Cap Discovery Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Small Cap Discovery Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.80%
Fidelity Small Cap Discovery Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
Fidelity Small Cap Discovery Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
Fidelity Small Cap Discovery Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Small Cap Discovery Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Small Cap Discovery Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
Fidelity Small Cap Discovery Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Small Cap Discovery Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 94.90%
Fidelity Small Cap Discovery Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Small Cap Discovery Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Small Cap Discovery Fund | Puerto Rico  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Small Cap Discovery Fund | GrandCaymanUKOverseasTerMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Small Cap Discovery Fund | BailiwickOfGuernseyMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Small Cap Discovery Fund | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Small Cap Discovery Fund | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Small Cap Discovery Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 97.70%
Fidelity Small Cap Discovery Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Series Small Cap Discovery Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
Fidelity Series Small Cap Discovery Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Series Small Cap Discovery Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Series Small Cap Discovery Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
Fidelity Series Small Cap Discovery Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Series Small Cap Discovery Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Series Small Cap Discovery Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Series Small Cap Discovery Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Series Small Cap Discovery Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Series Small Cap Discovery Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Series Small Cap Discovery Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
Fidelity Series Small Cap Discovery Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 19.90%
Fidelity Series Small Cap Discovery Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
Fidelity Series Small Cap Discovery Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Series Small Cap Discovery Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.70%
Fidelity Series Small Cap Discovery Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
Fidelity Series Small Cap Discovery Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
Fidelity Series Small Cap Discovery Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Series Small Cap Discovery Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Series Small Cap Discovery Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Series Small Cap Discovery Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Series Small Cap Discovery Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 95.10%
Fidelity Series Small Cap Discovery Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Series Small Cap Discovery Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Series Small Cap Discovery Fund | Puerto Rico  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Series Small Cap Discovery Fund | GrandCaymanUKOverseasTerMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Series Small Cap Discovery Fund | BailiwickOfGuernseyMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Series Small Cap Discovery Fund | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Series Small Cap Discovery Fund | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Series Small Cap Discovery Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 97.30%
Fidelity Series Small Cap Discovery Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Fidelity Series Small Cap Core Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Series Small Cap Core Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Series Small Cap Core Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Series Small Cap Core Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Series Small Cap Core Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Series Small Cap Core Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
Fidelity Series Small Cap Core Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 16.80%
Fidelity Series Small Cap Core Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
Fidelity Series Small Cap Core Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
Fidelity Series Small Cap Core Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
Fidelity Series Small Cap Core Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Series Small Cap Core Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
Fidelity Series Small Cap Core Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Series Small Cap Core Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Fidelity Series Small Cap Core Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
Fidelity Series Small Cap Core Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
Fidelity Series Small Cap Core Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.60%
Fidelity Series Small Cap Core Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Series Small Cap Core Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Series Small Cap Core Fund | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Series Small Cap Core Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Series Small Cap Core Fund | Puerto Rico  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Series Small Cap Core Fund | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Series Small Cap Core Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Series Small Cap Core Fund | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Series Small Cap Core Fund | BahamasNassauMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Series Small Cap Core Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.30%
Fidelity Series Small Cap Core Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Mid-Cap Stock K6 Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock K6 Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Mid-Cap Stock K6 Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Mid-Cap Stock K6 Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock K6 Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock K6 Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock K6 Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock K6 Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock K6 Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock K6 Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock K6 Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
Fidelity Mid-Cap Stock K6 Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
Fidelity Mid-Cap Stock K6 Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
Fidelity Mid-Cap Stock K6 Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
Fidelity Mid-Cap Stock K6 Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 27.90%
Fidelity Mid-Cap Stock K6 Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Mid-Cap Stock K6 Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
Fidelity Mid-Cap Stock K6 Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock K6 Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock K6 Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
Fidelity Mid-Cap Stock K6 Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Fidelity Mid-Cap Stock K6 Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 88.90%
Fidelity Mid-Cap Stock K6 Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock K6 Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Mid-Cap Stock K6 Fund | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Mid-Cap Stock K6 Fund | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock K6 Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock K6 Fund | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Mid-Cap Stock K6 Fund | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Mid-Cap Stock K6 Fund | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Mid-Cap Stock K6 Fund | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock K6 Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 97.00%
Fidelity Mid-Cap Stock K6 Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Mid-Cap Stock K6 Fund | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Mid-Cap Stock Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Mid-Cap Stock Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Mid-Cap Stock Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Mid-Cap Stock Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Mid-Cap Stock Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Mid-Cap Stock Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Mid-Cap Stock Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Mid-Cap Stock Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Mid-Cap Stock Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Mid-Cap Stock Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Mid-Cap Stock Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Mid-Cap Stock Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Mid-Cap Stock Fund | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Mid-Cap Stock Fund | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Mid-Cap Stock Fund | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Mid-Cap Stock Fund | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Mid-Cap Stock Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Mid-Cap Stock Fund | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Mid-Cap Stock Fund - Class K | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund - Class K | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund - Class K | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Mid-Cap Stock Fund - Class K | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund - Class K | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund - Class K | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund - Class K | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund - Class K | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund - Class K | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund - Class K | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund - Class K | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Mid-Cap Stock Fund - Class K | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Mid-Cap Stock Fund - Class K | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Mid-Cap Stock Fund - Class K | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Mid-Cap Stock Fund - Class K | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Mid-Cap Stock Fund - Class K | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Mid-Cap Stock Fund - Class K | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Mid-Cap Stock Fund - Class K | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Mid-Cap Stock Fund - Class K | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund - Class K | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Mid-Cap Stock Fund - Class K | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Mid-Cap Stock Fund - Class K | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Mid-Cap Stock Fund - Class K | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Mid-Cap Stock Fund - Class K | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Mid-Cap Stock Fund - Class K | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Mid-Cap Stock Fund - Class K | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock Fund - Class K | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Mid-Cap Stock Fund - Class K | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Mid-Cap Stock Fund - Class K | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Mid-Cap Stock Fund - Class K | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Mid-Cap Stock Fund - Class K | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Mid-Cap Stock Fund - Class K | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Mid-Cap Stock Fund - Class K | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Mid-Cap Stock Fund - Class K | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Large Cap Stock K6 Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Large Cap Stock K6 Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
Fidelity Large Cap Stock K6 Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Fidelity Large Cap Stock K6 Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Large Cap Stock K6 Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Large Cap Stock K6 Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Large Cap Stock K6 Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
Fidelity Large Cap Stock K6 Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Large Cap Stock K6 Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Large Cap Stock K6 Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Large Cap Stock K6 Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
Fidelity Large Cap Stock K6 Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.20%
Fidelity Large Cap Stock K6 Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
Fidelity Large Cap Stock K6 Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Large Cap Stock K6 Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
Fidelity Large Cap Stock K6 Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Large Cap Stock K6 Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Large Cap Stock K6 Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Large Cap Stock K6 Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
Fidelity Large Cap Stock K6 Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Large Cap Stock K6 Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Large Cap Stock K6 Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 92.20%
Fidelity Large Cap Stock K6 Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
Fidelity Large Cap Stock K6 Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Large Cap Stock K6 Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Large Cap Stock K6 Fund | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
Fidelity Large Cap Stock K6 Fund | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Large Cap Stock K6 Fund | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Large Cap Stock K6 Fund | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Large Cap Stock K6 Fund | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Large Cap Stock K6 Fund | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Large Cap Stock K6 Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 94.90%
Fidelity Large Cap Stock K6 Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Large Cap Stock K6 Fund | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
Fidelity Large Cap Stock Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Large Cap Stock Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Large Cap Stock Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Large Cap Stock Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Large Cap Stock Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Large Cap Stock Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Large Cap Stock Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Large Cap Stock Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Large Cap Stock Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Large Cap Stock Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Large Cap Stock Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Large Cap Stock Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Large Cap Stock Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Large Cap Stock Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Large Cap Stock Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Large Cap Stock Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Large Cap Stock Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Large Cap Stock Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Large Cap Stock Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Large Cap Stock Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Large Cap Stock Fund | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Large Cap Stock Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Large Cap Stock Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Large Cap Stock Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Large Cap Stock Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Large Cap Stock Fund | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Large Cap Stock Fund | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Large Cap Stock Fund | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Large Cap Stock Fund | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Large Cap Stock Fund | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Large Cap Stock Fund | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Large Cap Stock Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Large Cap Stock Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Large Cap Stock Fund | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Large Cap Stock Fund | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Founders Fund | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Founders Fund | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Founders Fund | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Founders Fund | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Founders Fund | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Founders Fund | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Founders Fund | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Founders Fund | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Founders Fund | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Founders Fund | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Founders Fund | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Founders Fund | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Founders Fund | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Founders Fund | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Founders Fund | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Founders Fund | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Founders Fund | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Founders Fund | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Founders Fund | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Founders Fund | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Founders Fund | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Founders Fund | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Founders Fund | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Founders Fund | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Founders Fund | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Founders Fund | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Founders Fund | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Founders Fund | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Founders Fund | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Founders Fund | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Founders Fund | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Founders Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Founders Fund | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Founders Fund - Class Z | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Founders Fund - Class Z | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Advisor Founders Fund - Class Z | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Advisor Founders Fund - Class Z | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Advisor Founders Fund - Class Z | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class Z | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class Z | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Founders Fund - Class Z | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Advisor Founders Fund - Class Z | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class Z | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class Z | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Advisor Founders Fund - Class Z | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Advisor Founders Fund - Class Z | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Advisor Founders Fund - Class Z | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Founders Fund - Class Z | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Advisor Founders Fund - Class Z | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Advisor Founders Fund - Class Z | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Advisor Founders Fund - Class Z | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Advisor Founders Fund - Class Z | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Advisor Founders Fund - Class Z | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Advisor Founders Fund - Class Z | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Advisor Founders Fund - Class Z | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Advisor Founders Fund - Class Z | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Founders Fund - Class Z | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Founders Fund - Class Z | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class Z | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Founders Fund - Class Z | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Advisor Founders Fund - Class Z | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class Z | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Advisor Founders Fund - Class Z | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class Z | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Advisor Founders Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Founders Fund - Class Z | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Founders Fund - Class M | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Founders Fund - Class M | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Advisor Founders Fund - Class M | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Advisor Founders Fund - Class M | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Advisor Founders Fund - Class M | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class M | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class M | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Founders Fund - Class M | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Advisor Founders Fund - Class M | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class M | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class M | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Advisor Founders Fund - Class M | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Advisor Founders Fund - Class M | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Advisor Founders Fund - Class M | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Founders Fund - Class M | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Advisor Founders Fund - Class M | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Advisor Founders Fund - Class M | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Advisor Founders Fund - Class M | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Advisor Founders Fund - Class M | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Advisor Founders Fund - Class M | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Advisor Founders Fund - Class M | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Advisor Founders Fund - Class M | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Advisor Founders Fund - Class M | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Founders Fund - Class M | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Founders Fund - Class M | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class M | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Founders Fund - Class M | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Advisor Founders Fund - Class M | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class M | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Advisor Founders Fund - Class M | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class M | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Advisor Founders Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Founders Fund - Class M | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Founders Fund - Class I | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Founders Fund - Class I | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Advisor Founders Fund - Class I | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Advisor Founders Fund - Class I | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Advisor Founders Fund - Class I | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class I | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class I | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Founders Fund - Class I | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Advisor Founders Fund - Class I | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class I | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class I | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Advisor Founders Fund - Class I | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Advisor Founders Fund - Class I | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Advisor Founders Fund - Class I | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Founders Fund - Class I | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Advisor Founders Fund - Class I | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Advisor Founders Fund - Class I | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Advisor Founders Fund - Class I | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Advisor Founders Fund - Class I | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Advisor Founders Fund - Class I | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Advisor Founders Fund - Class I | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Advisor Founders Fund - Class I | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Advisor Founders Fund - Class I | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Founders Fund - Class I | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Founders Fund - Class I | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class I | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Founders Fund - Class I | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Advisor Founders Fund - Class I | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class I | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Advisor Founders Fund - Class I | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class I | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Advisor Founders Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Founders Fund - Class I | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Founders Fund - Class C | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Founders Fund - Class C | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Advisor Founders Fund - Class C | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Advisor Founders Fund - Class C | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Advisor Founders Fund - Class C | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class C | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class C | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Founders Fund - Class C | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Advisor Founders Fund - Class C | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class C | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class C | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Advisor Founders Fund - Class C | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Advisor Founders Fund - Class C | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Advisor Founders Fund - Class C | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Founders Fund - Class C | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Advisor Founders Fund - Class C | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Advisor Founders Fund - Class C | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Advisor Founders Fund - Class C | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Advisor Founders Fund - Class C | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Advisor Founders Fund - Class C | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Advisor Founders Fund - Class C | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Advisor Founders Fund - Class C | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Advisor Founders Fund - Class C | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Founders Fund - Class C | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Founders Fund - Class C | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class C | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Founders Fund - Class C | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Advisor Founders Fund - Class C | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class C | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Advisor Founders Fund - Class C | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class C | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Advisor Founders Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Founders Fund - Class C | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Founders Fund - Class A | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Founders Fund - Class A | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Advisor Founders Fund - Class A | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
Fidelity Advisor Founders Fund - Class A | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
Fidelity Advisor Founders Fund - Class A | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class A | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class A | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Founders Fund - Class A | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Advisor Founders Fund - Class A | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class A | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Founders Fund - Class A | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 16.30%
Fidelity Advisor Founders Fund - Class A | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 21.90%
Fidelity Advisor Founders Fund - Class A | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
Fidelity Advisor Founders Fund - Class A | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Founders Fund - Class A | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
Fidelity Advisor Founders Fund - Class A | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity Advisor Founders Fund - Class A | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
Fidelity Advisor Founders Fund - Class A | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
Fidelity Advisor Founders Fund - Class A | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
Fidelity Advisor Founders Fund - Class A | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity Advisor Founders Fund - Class A | United States  
Holdings [Line Items]  
Percent of Net Asset Value 83.10%
Fidelity Advisor Founders Fund - Class A | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
Fidelity Advisor Founders Fund - Class A | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Founders Fund - Class A | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Founders Fund - Class A | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
Fidelity Advisor Founders Fund - Class A | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Founders Fund - Class A | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Fidelity Advisor Founders Fund - Class A | Norway  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class A | Korea, Republic of  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
Fidelity Advisor Founders Fund - Class A | China  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Founders Fund - Class A | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
Fidelity Advisor Founders Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Founders Fund - Class A | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class A | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class A | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Mid-Cap Stock Fund - Class A | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Mid-Cap Stock Fund - Class A | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Advisor Mid-Cap Stock Fund - Class A | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Advisor Mid-Cap Stock Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Advisor Mid-Cap Stock Fund - Class A | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class M | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class M | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Mid-Cap Stock Fund - Class M | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Mid-Cap Stock Fund - Class M | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Advisor Mid-Cap Stock Fund - Class M | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Advisor Mid-Cap Stock Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Advisor Mid-Cap Stock Fund - Class M | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class C | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class C | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Mid-Cap Stock Fund - Class C | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Mid-Cap Stock Fund - Class C | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Advisor Mid-Cap Stock Fund - Class C | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Advisor Mid-Cap Stock Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Advisor Mid-Cap Stock Fund - Class C | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class I | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class I | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Mid-Cap Stock Fund - Class I | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Mid-Cap Stock Fund - Class I | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Advisor Mid-Cap Stock Fund - Class I | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Advisor Mid-Cap Stock Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Advisor Mid-Cap Stock Fund - Class I | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | United States  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Italy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Israel  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Advisor Mid-Cap Stock Fund - Class Z | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Large Cap Stock Fund - Class A | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Advisor Large Cap Stock Fund - Class A | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Advisor Large Cap Stock Fund - Class A | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Advisor Large Cap Stock Fund - Class A | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Advisor Large Cap Stock Fund - Class A | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class A | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class A | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class A | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class A | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class A | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Large Cap Stock Fund - Class A | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Advisor Large Cap Stock Fund - Class A | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Advisor Large Cap Stock Fund - Class A | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Large Cap Stock Fund - Class A | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class A | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Advisor Large Cap Stock Fund - Class A | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class A | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Advisor Large Cap Stock Fund - Class A | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Advisor Large Cap Stock Fund - Class A | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Advisor Large Cap Stock Fund - Class A | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Advisor Large Cap Stock Fund - Class A | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Large Cap Stock Fund - Class A | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Advisor Large Cap Stock Fund - Class A | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Advisor Large Cap Stock Fund - Class A | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Large Cap Stock Fund - Class A | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class A | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class A | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Large Cap Stock Fund - Class A | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class A | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class A | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class A | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class A | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Advisor Large Cap Stock Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class A | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class A | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Large Cap Stock Fund - Class M | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Advisor Large Cap Stock Fund - Class M | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Advisor Large Cap Stock Fund - Class M | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Advisor Large Cap Stock Fund - Class M | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Advisor Large Cap Stock Fund - Class M | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class M | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class M | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class M | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class M | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class M | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Large Cap Stock Fund - Class M | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Advisor Large Cap Stock Fund - Class M | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Advisor Large Cap Stock Fund - Class M | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Large Cap Stock Fund - Class M | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class M | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Advisor Large Cap Stock Fund - Class M | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class M | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Advisor Large Cap Stock Fund - Class M | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Advisor Large Cap Stock Fund - Class M | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Advisor Large Cap Stock Fund - Class M | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Advisor Large Cap Stock Fund - Class M | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Large Cap Stock Fund - Class M | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Advisor Large Cap Stock Fund - Class M | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Advisor Large Cap Stock Fund - Class M | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Large Cap Stock Fund - Class M | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class M | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class M | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Large Cap Stock Fund - Class M | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class M | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class M | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class M | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class M | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Advisor Large Cap Stock Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class M | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class M | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Large Cap Stock Fund - Class C | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Advisor Large Cap Stock Fund - Class C | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Advisor Large Cap Stock Fund - Class C | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Advisor Large Cap Stock Fund - Class C | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Advisor Large Cap Stock Fund - Class C | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class C | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class C | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class C | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class C | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class C | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Large Cap Stock Fund - Class C | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Advisor Large Cap Stock Fund - Class C | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Advisor Large Cap Stock Fund - Class C | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Large Cap Stock Fund - Class C | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class C | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Advisor Large Cap Stock Fund - Class C | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class C | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Advisor Large Cap Stock Fund - Class C | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Advisor Large Cap Stock Fund - Class C | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Advisor Large Cap Stock Fund - Class C | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Advisor Large Cap Stock Fund - Class C | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Large Cap Stock Fund - Class C | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Advisor Large Cap Stock Fund - Class C | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Advisor Large Cap Stock Fund - Class C | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Large Cap Stock Fund - Class C | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class C | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class C | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Large Cap Stock Fund - Class C | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class C | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class C | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class C | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class C | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Advisor Large Cap Stock Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class C | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class C | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Large Cap Stock Fund - Class I | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Advisor Large Cap Stock Fund - Class I | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Advisor Large Cap Stock Fund - Class I | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Advisor Large Cap Stock Fund - Class I | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Advisor Large Cap Stock Fund - Class I | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class I | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class I | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class I | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class I | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class I | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Large Cap Stock Fund - Class I | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Advisor Large Cap Stock Fund - Class I | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Advisor Large Cap Stock Fund - Class I | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Large Cap Stock Fund - Class I | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class I | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Advisor Large Cap Stock Fund - Class I | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class I | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Advisor Large Cap Stock Fund - Class I | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Advisor Large Cap Stock Fund - Class I | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Advisor Large Cap Stock Fund - Class I | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Advisor Large Cap Stock Fund - Class I | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Large Cap Stock Fund - Class I | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Advisor Large Cap Stock Fund - Class I | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Advisor Large Cap Stock Fund - Class I | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Large Cap Stock Fund - Class I | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class I | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class I | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Large Cap Stock Fund - Class I | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class I | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class I | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class I | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class I | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Advisor Large Cap Stock Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class I | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class I | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH0Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH1Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH2Member  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH3Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH4Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH5Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH6Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH7Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH8Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class Z | TH9Member  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
Fidelity Advisor Large Cap Stock Fund - Class Z | MSFinancialsSectorMember  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | Information Technology Member  
Holdings [Line Items]  
Percent of Net Asset Value 24.30%
Fidelity Advisor Large Cap Stock Fund - Class Z | Healthcare Sector  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Advisor Large Cap Stock Fund - Class Z | Real Estate Sector  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class Z | Industrial Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | Materials Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class Z | Consumer Discretionary Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
Fidelity Advisor Large Cap Stock Fund - Class Z | Consumer Staples Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | Communications Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
Fidelity Advisor Large Cap Stock Fund - Class Z | Energy Sector  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
Fidelity Advisor Large Cap Stock Fund - Class Z | Utilities Sector Member  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Fidelity Advisor Large Cap Stock Fund - Class Z | United States  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
Fidelity Advisor Large Cap Stock Fund - Class Z | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Fidelity Advisor Large Cap Stock Fund - Class Z | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Advisor Large Cap Stock Fund - Class Z | OtherMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class Z | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
Fidelity Advisor Large Cap Stock Fund - Class Z | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
Fidelity Advisor Large Cap Stock Fund - Class Z | Belgium  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity Advisor Large Cap Stock Fund - Class Z | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | Zambia  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Fidelity Advisor Large Cap Stock Fund - Class Z | France  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | AACommonStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 96.30%
Fidelity Advisor Large Cap Stock Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Advisor Large Cap Stock Fund - Class Z | AAPreferredStocksMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
Fidelity Advisor Large Cap Stock Fund - Class Z | AAOptionsMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%