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(John Hancock High Yield Fund)  
Prospectus: rr_ProspectusTable  
Objective [Heading] rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

To seek high current income. Capital appreciation is a secondary goal.
Expense [Heading] rr_ExpenseHeading

FEES AND EXPENSES

Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $100,000 in the John Hancock family of funds. More information about these and other discounts is available from your financial representative and on pages 20 to 21 of the prospectus under "Sales charge reductions and waivers" or pages 141 to 144 of the fund's Statement of Additional Information under "Initial sales charge on Class A shares."
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $100,000 in the John Hancock family of funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 100,000
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption

Shareholder fees (%) (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual fund operating expenses (%) (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Sep. 30, 2017
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates "Other expenses" have been estimated for the first year of operations of the fund's Class R6 shares.
Expense Example [Heading] rr_ExpenseExampleHeading

EXPENSE EXAMPLE

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. Please see below a hypothetical example showing the expenses of a $10,000 investment for the time periods indicated and then, except as shown below, assuming you sell all of your shares at the end of those periods. The example assumes a 5% average annual return and that fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption

Sold

Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption

Not Sold

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 fund operating expenses or in the example, affect the fund's performance. During its most recent fiscal year, the fund's portfolio turnover rate was 89% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 89.00%
Strategy [Heading] rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in U.S. and foreign fixed-income securities rated BB/Ba or lower and their unrated equivalents. Bonds rated at or below BB by Standard & Poor's Ratings Services (S&P) or Fitch Ratings, Inc. (Fitch) or Ba by Moody's Investors Service, Inc. (Moody's) are considered junk bonds. These may include, but are not limited to, domestic and foreign corporate bonds and government obligations, debentures and notes, convertible securities and preferred securities. No more than 10% of the fund's total assets may be invested in securities that are rated in default by S&P or Moody's. The fund's investment policies are based on credit ratings at the time of purchase. There is no limit on the fund's average maturity.

The manager concentrates on industry allocation and securities selection in making investment decisions. The manager uses top-down analysis to determine which industries may benefit from current and future changes in the economy. The manager uses bottom-up research to find individual securities that appear comparatively undervalued. The manager looks at the financial condition of the issuers, as well as the collateralization and other features of the securities themselves. The fund may hold up to 20% of its total assets in the securities of companies in any one industry and up to 10% of its total assets in the securities of any individual issuer. The fund typically invests in a broad range of industries.

The fund may invest in both investment-grade and below-investment-grade asset-backed securities. The fund may use certain higher-risk investments, including restricted or illiquid securities and derivatives. Derivatives may be used to reduce risk, obtain efficient market exposure, and/or enhance investment returns, and may include futures contracts on securities, indexes and foreign currency; options on futures contracts, securities, indexes and foreign currency; interest-rate, foreign currency and credit default swaps; and foreign currency forward contracts. In addition, the fund may invest up to 20% of its assets in U.S. and foreign common stocks of companies of any size. The fund may trade securities actively.
Risk [Heading] rr_RiskHeading

PRINCIPAL RISKS

Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Many factors affect performance, and fund shares will fluctuate in price, meaning you could lose money. The fund's investment strategy may not produce the intended results.

During periods of heightened market volatility or reduced liquidity, governments, their agencies, or other regulatory bodies, both within the United States and abroad, may take steps to intervene. These actions, which could include legislative, regulatory, or economic initiatives, might have unforeseeable consequences and could adversely affect the fund's performance or otherwise constrain the fund's ability to achieve its investment objective.

The fund's main risks are listed below in alphabetical order. Before investing, be sure to read the additional descriptions of these risks beginning on page 5 of the prospectus.

Changing distribution levels risk. The fund may cease or reduce the level of its distribution if income or dividends paid from its investments declines.

Credit and counterparty risk. The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract, or a borrower of fund securities may not make timely payments or otherwise honor its obligations. U.S. government securities are subject to varying degrees of credit risk depending upon the nature of their support. A downgrade or default affecting any of the fund's securities could affect the fund's performance.

Cybersecurity risk. Cybersecurity breaches may allow an unauthorized party to gain access to fund assets, customer data, or proprietary information, or cause a fund or its service providers to suffer data corruption or lose operational functionality. Similar incidents affecting issuers of a fund's securities may negatively impact performance.

Defaulted debt risk. Investing in defaulted debt securities is speculative and involves substantial risks in addition to those of non-defaulted high-yield securities. Defaulted debt securities generally do not generate interest payments. Principal on defaulted debt might not be repaid, and a fund could lose up to its entire investment.

Economic and market events risk. Events in the U.S. and global financial markets, including actions taken by the U.S. Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Reduced liquidity in credit and fixed-income markets could adversely affect issuers worldwide. Banks and financial services companies could suffer losses if interest rates rise or economic conditions deteriorate.

Equity securities risk. The price of equity securities may decline due to changes in a company's financial condition or overall market conditions.

Preferred and convertible securities risk. Unlike interest on debt securities, preferred stock dividends are payable only if declared by the issuer's board. Preferred stock may be subject to redemption provisions. The value of convertible preferred stock can depend heavily on the price of the underlying common stock.

Fixed-income securities risk. A rise in interest rates typically causes bond prices to fall. The longer the average maturity or duration of the bonds held by a fund, the more sensitive it will likely be to interest-rate fluctuations. An issuer may not make all interest payments or repay all or any of the principal borrowed. Changes in a security's credit quality may adversely affect fund performance.

Foreign securities risk. Less information may be publicly available regarding foreign issuers. Foreign securities may be subject to foreign taxes and may be more volatile than U.S. securities. Currency fluctuations and political and economic developments may adversely impact the value of foreign securities.

Hedging, derivatives, and other strategic transactions risk. Hedging, derivatives, and other strategic transactions may increase a fund's volatility and could produce disproportionate losses, potentially more than the fund's principal investment. Risks of these transactions are different from and possibly greater than risks of investing directly in securities and other traditional instruments. Under certain market conditions, derivatives could become harder to value or sell and may become subject to liquidity risk (i.e., the inability to enter into closing transactions). Derivatives and other strategic transactions that the fund intends to utilize, along with specific additional associated risks, if any, include: credit default swaps; foreign currency forward contracts; foreign currency swaps; futures contracts; interest-rate swaps; and options. Foreign currency forward contracts, futures contracts, options, and swaps generally are subject to counterparty risk. In addition, swaps may be subject to interest-rate and settlement risk, and the risk of default of the underlying reference obligation. Derivatives associated with foreign currency transactions are subject to currency risk.

High portfolio turnover risk. Trading securities actively and frequently can increase transaction costs (thus lowering performance) and taxable distributions.

Large company risk. Larger companies may grow more slowly than smaller companies or be slower to respond to business developments. Large-capitalization securities may underperform the market as a whole.

Liquidity risk. The extent (if at all) to which a security may be sold or a derivative position closed without negatively impacting its market value may be impaired by reduced market activity or participation, legal restrictions, or other economic and market impediments. Liquidity risk may be magnified in rising interest rate environments due to higher than normal redemption rates. Widespread selling of fixed-income securities to satisfy redemptions during periods of reduced demand may adversely impact the price or salability of such securities. Periods of heavy redemption could cause the fund to sell assets at a loss or depressed value, which could negatively affect performance. Redemption risk is heightened during periods of declining or illiquid markets.

Lower-rated and high-yield fixed-income securities risk. Lower-rated and high-yield fixed-income securities (junk bonds) are subject to greater credit quality risk, risk of default, and price volatility than higher-rated fixed-income securities, may be considered speculative, and can be difficult to resell.

Mortgage-backed and asset-backed securities risk. Mortgage-backed and asset-backed securities are subject to different combinations of prepayment, extension, interest-rate, and other market risks.

Sector risk. When a fund focuses its investments in certain sectors of the economy, its performance may be driven largely by sector performance and could fluctuate more widely than if the fund were invested more evenly across sectors.

Small and mid-sized company risk. Small and mid-sized companies are generally less established and may be more volatile than larger companies. Small and/or mid-sized capitalization securities may underperform the market as a whole.
Risk Lose Money [Text] rr_RiskLoseMoney Many factors affect performance, and fund shares will fluctuate in price, meaning you could lose money.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the fund is not a bank deposit 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

PAST PERFORMANCE

Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following information illustrates the variability of the fund's returns and provides some indication of the risks of investing in the fund by showing changes in the fund's performance from year to year compared with a broad-based market index. Past performance (before and after taxes) does not indicate future results. All figures assume dividend reinvestment. Performance information is updated daily, monthly, and quarterly and may be obtained at our website, jhinvestments.com, or by calling 800-225-5291, Monday to Thursday, 8:00 A.M.—7:00 P.M., and Friday, 8:00 A.M.—6:00 P.M., Eastern time (Class A, Class B, and Class C), or 888-972-8696 between 8:30 A.M. and 5:00 P.M., Eastern time, on most business days (Class I and Class R6).

A note on performance

Class A shares commenced operations on June 30, 1993. Class I and Class R6 shares commenced operations on August 28, 2007 and October 31, 2016, respectively. Returns shown prior to the commencement date of a share class are those of Class A shares that have been recalculated to reflect the actual or estimated gross fees and expenses of that share class, as applicable. Returns for Class I and Class R6 shares would have been substantially similar to returns of Class A shares because each share class is invested in the same portfolio of securities and returns would differ only to the extent that expenses of the classes are different.

Please note that after-tax returns (shown for Class A shares only) reflect the highest individual federal marginal income-tax rate in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k), or other tax-advantaged investment plan. After-tax returns for other share classes would vary. The returns for Class A shares have been adjusted to reflect the reduction in the maximum sales charge from 4.50% to 4.00%, effective February 3, 2014.
Bar Chart [Heading] rr_BarChartHeading

Calendar year total returns (%)—Class A (sales charges are not reflected in the bar chart and returns would have been lower if they were)

Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads sales charges are not reflected in the bar chart and returns would have been lower if they were
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Year-to-date total return. The fund's total return for the six months ended June 30, 2016, was 6.59%.
Best quarter: Q3 '09, 29.25%
Worst quarter: Q4 '08, -30.28%

Performance Table Heading rr_PerformanceTableHeading

Average annual total returns (%)—as of 12/31/15

Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate Please note that after-tax returns (shown for Class A shares only) reflect the highest individual federal marginal income-tax rate in effect as of the date provided and do not reflect any state or local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to shares held in an IRA, 401(k), or other tax-advantaged investment plan.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) does not indicate future results.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following information illustrates the variability of the fund's returns and provides some indication of the risks of investing in the fund by showing changes in the fund's performance from year to year compared with a broad-based market index.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown Please note that after-tax returns (shown for Class A shares only)
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress jhinvestments.com
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone by calling 800-225-5291, Monday to Thursday, 8:00 A.M.—7:00 P.M., and Friday, 8:00 A.M.—6:00 P.M., Eastern time (Class A, Class B, and Class C), or 888-972-8696 between 8:30 A.M. and 5:00 P.M., Eastern time, on most business days (Class I and Class R6).
(John Hancock High Yield Fund) | Bank of America Merrill Lynch US High Yield Master II Index (reflects no deduction for fees, expenses, or taxes)  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (4.64%)
5 Years rr_AverageAnnualReturnYear05 4.84%
10 Years rr_AverageAnnualReturnYear10 6.81%
(John Hancock High Yield Fund) | Class A  
Prospectus: rr_ProspectusTable  
Maximum front-end sales charge (load) on purchases, as a % of purchase price rr_MaximumCumulativeSalesChargeOverOther 4.00%
Maximum deferred sales charge (load) as a % of purchase or sale price, whichever is less rr_MaximumDeferredSalesChargeOverOther 1.00% [1]
Small account fee (for fund account balances under $1,000) ($) rr_ShareholderFeeOther $ 20
Management fee rr_ManagementFeesOverAssets 0.51%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.22% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.98%
Contractual expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual fund operating expenses after expense reimbursements rr_NetExpensesOverAssets 0.98%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 496
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 700
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 920
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,553
Annual Return 2006 rr_AnnualReturn2006 20.25%
Annual Return 2007 rr_AnnualReturn2007 (1.21%)
Annual Return 2008 rr_AnnualReturn2008 (48.45%)
Annual Return 2009 rr_AnnualReturn2009 69.57%
Annual Return 2010 rr_AnnualReturn2010 24.85%
Annual Return 2011 rr_AnnualReturn2011 (13.15%)
Annual Return 2012 rr_AnnualReturn2012 25.27%
Annual Return 2013 rr_AnnualReturn2013 10.54%
Annual Return 2014 rr_AnnualReturn2014 (0.88%)
Annual Return 2015 rr_AnnualReturn2015 (4.40%)
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-date total return. The fund's total return for the six months ended June 30, 2016, was 6.59%.
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 6.59%
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2016
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter: Q3 '09, 29.25%
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 29.25%
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter: Q4 '08, -30.28%
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (30.28%)
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
1 Year rr_AverageAnnualReturnYear01 (8.23%)
5 Years rr_AverageAnnualReturnYear05 1.83%
10 Years rr_AverageAnnualReturnYear10 3.56%
(John Hancock High Yield Fund) | Class A | after tax on distributions  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (10.79%)
5 Years rr_AverageAnnualReturnYear05 (0.74%)
10 Years rr_AverageAnnualReturnYear10 0.45%
(John Hancock High Yield Fund) | Class A | after tax on distributions, with sale  
Prospectus: rr_ProspectusTable  
1 Year rr_AverageAnnualReturnYear01 (4.54%)
5 Years rr_AverageAnnualReturnYear05 0.40%
10 Years rr_AverageAnnualReturnYear10 1.47%
(John Hancock High Yield Fund) | Class B  
Prospectus: rr_ProspectusTable  
Maximum front-end sales charge (load) on purchases, as a % of purchase price rr_MaximumCumulativeSalesChargeOverOther none
Maximum deferred sales charge (load) as a % of purchase or sale price, whichever is less rr_MaximumDeferredSalesChargeOverOther 5.00%
Small account fee (for fund account balances under $1,000) ($) rr_ShareholderFeeOther $ 20
Management fee rr_ManagementFeesOverAssets 0.51%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.22% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.73%
Contractual expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual fund operating expenses after expense reimbursements rr_NetExpensesOverAssets 1.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 676
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 845
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,139
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,842
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 176
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 545
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 939
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,842
1 Year rr_AverageAnnualReturnYear01 (9.63%)
5 Years rr_AverageAnnualReturnYear05 1.51%
10 Years rr_AverageAnnualReturnYear10 3.36%
(John Hancock High Yield Fund) | Class C  
Prospectus: rr_ProspectusTable  
Maximum front-end sales charge (load) on purchases, as a % of purchase price rr_MaximumCumulativeSalesChargeOverOther none
Maximum deferred sales charge (load) as a % of purchase or sale price, whichever is less rr_MaximumDeferredSalesChargeOverOther 1.00%
Small account fee (for fund account balances under $1,000) ($) rr_ShareholderFeeOther $ 20
Management fee rr_ManagementFeesOverAssets 0.51%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.22%
Total annual fund operating expenses rr_ExpensesOverAssets 1.73%
Contractual expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual fund operating expenses after expense reimbursements rr_NetExpensesOverAssets 1.73%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 276
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 545
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 939
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,041
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 176
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 545
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 939
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,041
1 Year rr_AverageAnnualReturnYear01 (6.31%)
5 Years rr_AverageAnnualReturnYear05 1.87%
10 Years rr_AverageAnnualReturnYear10 3.18%
(John Hancock High Yield Fund) | Class I  
Prospectus: rr_ProspectusTable  
Maximum front-end sales charge (load) on purchases, as a % of purchase price rr_MaximumCumulativeSalesChargeOverOther none
Maximum deferred sales charge (load) as a % of purchase or sale price, whichever is less rr_MaximumDeferredSalesChargeOverOther none
Small account fee (for fund account balances under $1,000) ($) rr_ShareholderFeeOther none
Management fee rr_ManagementFeesOverAssets 0.51%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.20% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.71%
Contractual expense reimbursement rr_FeeWaiverOrReimbursementOverAssets none
Total annual fund operating expenses after expense reimbursements rr_NetExpensesOverAssets 0.71%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 227
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 883
1 Year rr_AverageAnnualReturnYear01 (4.47%)
5 Years rr_AverageAnnualReturnYear05 2.90%
10 Years rr_AverageAnnualReturnYear10 4.28%
(John Hancock High Yield Fund) | Class R6  
Prospectus: rr_ProspectusTable  
Maximum front-end sales charge (load) on purchases, as a % of purchase price rr_MaximumCumulativeSalesChargeOverOther none
Maximum deferred sales charge (load) as a % of purchase or sale price, whichever is less rr_MaximumDeferredSalesChargeOverOther none
Small account fee (for fund account balances under $1,000) ($) rr_ShareholderFeeOther none
Management fee rr_ManagementFeesOverAssets 0.51%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.11% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 0.62%
Contractual expense reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.02%) [4]
Total annual fund operating expenses after expense reimbursements rr_NetExpensesOverAssets 0.60%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 61
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 197
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 344
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 772
1 Year rr_AverageAnnualReturnYear01 (3.97%)
5 Years rr_AverageAnnualReturnYear05 3.10%
10 Years rr_AverageAnnualReturnYear10 4.42%
[1] (on certain purchases, including those of $1 million or more)
[2] "Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
[3] "Other expenses" have been estimated for the first year of operations of the fund's Class R6 shares.
[4] The advisor contractually agrees to waive and/or reimburse all class-specific expenses for Class R6 shares to the extent they exceed 0.00% of average annual net assets (on an annualized basis) attributable to the class. This agreement expires on September 30, 2017, unless renewed by mutual agreement of the fund and the advisor based upon a determination that this is appropriate under the circumstances at that time.