3.26.3 html 769 36 1 false 396 0 false 3 false false R1.htm 030000 - Disclosure - Form N-CSR Cover Sheet http://xbrl.sec.gov/oef/role/NcsrCover Form N-CSR Cover Cover 1 false false R2.htm 030001 - Disclosure - Shareholder Report Sheet http://xbrl.sec.gov/oef/role/ShareholderReport Shareholder Report Notes 2 false false R3.htm 040010 - Disclosure - Shareholder Report, Line Graph (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails Shareholder Report, Line Graph (Details) Details 3 false false R4.htm 040015 - Disclosure - Shareholder Report, Average Annual Return (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails Shareholder Report, Average Annual Return (Details) Details 4 false false R5.htm 040020 - Disclosure - Shareholder Report, Holdings (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails Shareholder Report, Holdings (Details) Details 5 false false All Reports Book All Reports filing13355.htm fmr-20261030.xsd img142089_1.jpg img142089_2.jpg img142089_4.jpg img142090_1.jpg img142090_2.jpg img142090_4.jpg img142104_1.jpg img142104_2.jpg img142104_4.jpg img142105_1.jpg img142105_2.jpg img142105_4.jpg img142177_1.jpg img142177_3.jpg img142178_1.jpg img142178_3.jpg img142179_1.jpg img142179_3.jpg img142223_1.jpg img142223_3.jpg img142224_1.jpg img142224_3.jpg img142225_1.jpg img142225_3.jpg img142241_1.jpg img142241_3.jpg img142242_1.jpg img142242_3.jpg img142243_1.jpg img142243_3.jpg img142244_1.jpg img142244_3.jpg img142245_1.jpg img142245_3.jpg img304_20260831_2.jpg img304_20260831_AA.jpg img304_20260831_QD.jpg img3455_20260831_2.jpg img3455_20260831_AA.jpg img3455_20260831_QD.jpg img3460_20260831_2.jpg img3460_20260831_AA.jpg img3460_20260831_QD.jpg img4_20260831_2.jpg img4_20260831_AA.jpg img4_20260831_QD.jpg http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/oef/2025 false false