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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName FIDELITY ADVISOR SERIES II
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Fund Summary Fund/Class:Fidelity Advisor® Mortgage Securities Fund/A, M, C, I, Z
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks a high level of current income, consistent with prudent investment risk. In seeking current income, the fund may also consider the potential for capital gain.
Expense [Heading] rr_ExpenseHeading Fee Table
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund. In addition to the fees and expenses described below, your broker may also require you to pay brokerage commissions on purchases and sales of certain share classes of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 31 of the prospectus. Different intermediaries may provide additional waivers or reductions of the sales charge. Please see “Sales Charge Waiver Policies Applied by Certain Intermediaries” in the “Appendix” section of the prospectus.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 662% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 662.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the fund or certain other Fidelity® funds. More information about these and other discounts is available from your investment professional and in the "Fund Distribution" section beginning on page 31 of the prospectus.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated and if you hold your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock Normally investing at least 80% of assets in investment-grade mortgage-related securities (those of medium and high quality) and repurchase agreements for those securities. Investing in U.S. Government securities and instruments related to U.S. Government securities. Investing in U.S. Government securities issued by entities that are chartered or sponsored by Congress but whose securities are neither issued nor guaranteed by the U.S. Treasury. Managing the fund to have similar overall interest rate risk to the Bloomberg U.S. MBS Index. Allocating assets across different market sectors and maturities. Analyzing the credit quality of the issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments. Investing in lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds). Engaging in transactions that have a leveraging effect on the fund, including investments in derivatives - such as swaps (interest rate, total return, and credit default), options, and futures contracts - and forward-settling securities, to adjust the fund's risk exposure. Investing in Fidelity's central funds (specialized investment vehicles used by Fidelity® funds to invest in particular security types or investment disciplines) consistent with the asset classes discussed above.
Risk [Heading] rr_RiskHeading Principal Investment Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease. Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change. Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. A decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security can cause the price of a security to decrease. Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. Leverage Risk. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. High Portfolio Turnover. High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance. An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Unlike individual debt securities, which typically pay principal at maturity, the value of an investment in the fund will fluctuate. You could lose money by investing in the fund.
Risk Lose Money [Text] rr_RiskLoseMoney You could lose money by investing in the fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit institutional.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress institutional.fidelity.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Returns
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The returns in the bar chart do not reflect any applicable sales charges; if sales charges were reflected, returns would be lower than those shown.
Performance Table Heading rr_PerformanceTableHeading Average Annual Returns
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. After-tax returns for Class A are shown in the table below and after-tax returns for other classes will vary. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Fidelity Advisor Mortgage Securities Fund: Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 4.00%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Management fee rr_ManagementFeesOverAssets 0.30%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.24%
Total annual operating expenses rr_ExpensesOverAssets 0.79%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.79%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 0.75% or 0.25%, respectively.
1 year rr_ExpenseExampleYear01 $ 477
3 years rr_ExpenseExampleYear03 642
5 years rr_ExpenseExampleYear05 821
10 years rr_ExpenseExampleYear10 1,339
1 Year rr_ExpenseExampleNoRedemptionYear01 477
3 Years rr_ExpenseExampleNoRedemptionYear03 642
5 Years rr_ExpenseExampleNoRedemptionYear05 821
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,339
2012 rr_AnnualReturn2012 3.89%
2013 rr_AnnualReturn2013 (2.06%)
2014 rr_AnnualReturn2014 5.88%
2015 rr_AnnualReturn2015 1.11%
2016 rr_AnnualReturn2016 1.61%
2017 rr_AnnualReturn2017 1.90%
2018 rr_AnnualReturn2018 0.43%
2019 rr_AnnualReturn2019 6.05%
2020 rr_AnnualReturn2020 4.06%
2021 rr_AnnualReturn2021 (1.39%)
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date Return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (14.23%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2014
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 2.29%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2013
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.51%)
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Fidelity Advisor Mortgage Securities Fund: Class M  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice 4.00%
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none [1]
Management fee rr_ManagementFeesOverAssets 0.30%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.24%
Total annual operating expenses rr_ExpensesOverAssets 0.79%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.79%
1 year rr_ExpenseExampleYear01 $ 477
3 years rr_ExpenseExampleYear03 642
5 years rr_ExpenseExampleYear05 821
10 years rr_ExpenseExampleYear10 1,339
1 Year rr_ExpenseExampleNoRedemptionYear01 477
3 Years rr_ExpenseExampleNoRedemptionYear03 642
5 Years rr_ExpenseExampleNoRedemptionYear05 821
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,339
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Fidelity Advisor Mortgage Securities Fund: Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther 1.00% [2]
Management fee rr_ManagementFeesOverAssets 0.30%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.30%
Total annual operating expenses rr_ExpensesOverAssets 1.60%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.60%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock On Class C shares redeemed less than one year after purchase.
1 year rr_ExpenseExampleYear01 $ 263
3 years rr_ExpenseExampleYear03 505
5 years rr_ExpenseExampleYear05 871
10 years rr_ExpenseExampleYear10 1,683
1 Year rr_ExpenseExampleNoRedemptionYear01 163
3 Years rr_ExpenseExampleNoRedemptionYear03 505
5 Years rr_ExpenseExampleNoRedemptionYear05 871
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,683
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Fidelity Advisor Mortgage Securities Fund: Class I  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none
Management fee rr_ManagementFeesOverAssets 0.30%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.21%
Total annual operating expenses rr_ExpensesOverAssets 0.51%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.51%
1 year rr_ExpenseExampleYear01 $ 52
3 years rr_ExpenseExampleYear03 164
5 years rr_ExpenseExampleYear05 285
10 years rr_ExpenseExampleYear10 640
1 Year rr_ExpenseExampleNoRedemptionYear01 52
3 Years rr_ExpenseExampleNoRedemptionYear03 164
5 Years rr_ExpenseExampleNoRedemptionYear05 285
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 640
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Fidelity Advisor Mortgage Securities Fund: Class Z  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) on purchases (as a % of offering price) rr_MaximumCumulativeSalesChargeOverOfferingPrice none
Maximum contingent deferred sales charge (as a % of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOther none
Management fee rr_ManagementFeesOverAssets 0.30%
Distribution and/or Service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.10%
Total annual operating expenses rr_ExpensesOverAssets 0.40%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.04% [3]
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.36%
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination December 31, 2023
1 year rr_ExpenseExampleYear01 $ 37
3 years rr_ExpenseExampleYear03 123
5 years rr_ExpenseExampleYear05 219
10 years rr_ExpenseExampleYear10 500
1 Year rr_ExpenseExampleNoRedemptionYear01 37
3 Years rr_ExpenseExampleNoRedemptionYear03 123
5 Years rr_ExpenseExampleNoRedemptionYear05 219
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 500
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Return Before Taxes | Fidelity Advisor Mortgage Securities Fund: Class A  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (5.33%)
Past 5 years rr_AverageAnnualReturnYear05 1.35%
Past 10 years rr_AverageAnnualReturnYear10 1.70%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Return Before Taxes | Fidelity Advisor Mortgage Securities Fund: Class M  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class M - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (5.33%)
Past 5 years rr_AverageAnnualReturnYear05 1.34%
Past 10 years rr_AverageAnnualReturnYear10 1.70%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Return Before Taxes | Fidelity Advisor Mortgage Securities Fund: Class C  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (3.16%)
Past 5 years rr_AverageAnnualReturnYear05 1.40%
Past 10 years rr_AverageAnnualReturnYear10 1.51%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Return Before Taxes | Fidelity Advisor Mortgage Securities Fund: Class I  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class I - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (1.17%)
Past 5 years rr_AverageAnnualReturnYear05 2.49%
Past 10 years rr_AverageAnnualReturnYear10 2.41%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | Return Before Taxes | Fidelity Advisor Mortgage Securities Fund: Class Z  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class Z - Return Before Taxes
Past 1 year rr_AverageAnnualReturnYear01 (0.98%)
Past 10 years rr_AverageAnnualReturnYear10
Since Inception rr_AverageAnnualReturnSinceInception 3.66% [4]
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 02, 2018
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | After Taxes on Distributions | Fidelity Advisor Mortgage Securities Fund: Class A  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
Past 1 year rr_AverageAnnualReturnYear01 (5.52%)
Past 5 years rr_AverageAnnualReturnYear05 0.57%
Past 10 years rr_AverageAnnualReturnYear10 0.90%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | After Taxes on Distributions and Sales | Fidelity Advisor Mortgage Securities Fund: Class A  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year rr_AverageAnnualReturnYear01 (3.11%)
Past 5 years rr_AverageAnnualReturnYear05 0.69%
Past 10 years rr_AverageAnnualReturnYear10 0.95%
08.31 Fidelity Advisor Mortgage Securities Fund AMCIZ PRO-14 | Fidelity Advisor Mortgage Securities Fund | LB006  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Bloomberg U.S. MBS Index(reflects no deduction for fees, expenses, or taxes)
Past 1 year rr_AverageAnnualReturnYear01 (1.04%)
Past 5 years rr_AverageAnnualReturnYear05 2.50%
Past 10 years rr_AverageAnnualReturnYear10 2.28%
[1]

(a)Class A and Class M purchases of $1 million or more will not be subject to a front-end sales charge. Such Class A and Class M purchases may be subject, upon redemption, to a contingent deferred sales charge (CDSC) of 0.75% or 0.25%, respectively.

[2]

(b)On Class C shares redeemed less than one year after purchase.

[3]

(a)Fidelity Management & Research Company LLC (FMR) has contractually agreed to reimburse Class Z of the fund to the extent that total operating expenses (excluding interest, certain taxes, fees and expenses of the Independent Trustees, extraordinary expenses, and acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary), if any, as well as non-operating expenses such as brokerage commissions and fees and expenses associated with the fund’s securities lending program, if applicable), as a percentage of its average net assets, exceed 0.36% (the Expense Cap). If at any time during the current fiscal year expenses for Class Z of the fund fall below the Expense Cap, FMR reserves the right to recoup through the end of the fiscal year any expenses that were reimbursed during the current fiscal year up to, but not in excess of, the Expense Cap. This arrangement will remain in effect through December 31, 2023 . FMR may not terminate this arrangement before the expiration date without the approval of the Board of Trustees and may extend it in its discretion after that date.
[4]

(a)Since inception October 2, 2018.